How Search Engines Work?

World around has turned Digital making everyone now open a digital device and search for something daily, actually many times a day but have you ever thought of knowing how these search engines work and how are results that best answers your search query thrown on your screen. Here is the answer for your question. 

With no search engines there would be no access to the world of information. So let see how these search engines work..

Before proceeding further lets understand what a search engine is? A web search engine is a software system that searches the world wide web for the requested search query and gathers all the information relevant and throws them in an order, sorted based on the respective search engines algorithms.

So, How do they perform this job of finding results? For this question to be answered, lets move to the main point of How do Search Engines work? 

Search Engines usually perform 3 different activities as Crawling, to discover content over the web; Indexing, to track and store the content crawled; and Retrieving, fetch relevant content for the search query of a user in the search engine.

Crawling:

The whole work of a Search Engine starts with Crawling which is the all about acquisition of data about a website. 

As a part of this step, websites are scanned and details of each page like titles, descriptions, images, keywords, other linked pages, etc.is collected. Some other crawlers also collect details about page layout, if the links pointing are crammed in, where the advertisements if any are to be placed etc.

A Search Engine's automated robots also called Spiders visit page after page as quick as possible by following various links available. 

A web crawler visits a page and then collects all the links in the page and adds them to the queue of links to be crawled and then do the same for the next links in queue. Crawlers also visit back old sites to look for any updates of the content. With that said, any site or page linked to an already existing indexed page will be crawled eventually. The rate at which sites are crawled varies from site to site, some are crawled more frequently while some others are crawled to a great depth.

Indexing:
Indexing is the step that falls after crawling. A site or a page when crawled is further processed and stored in a database.
Imagine making a list of all house addresses in your town, their owners details, tenants details, floor count, etc. Crawling is going through each house whereas indexing is listing them in your storage space.
This is wrt a small town, now apply the same task to the whole world. That's a simple easy to understand version of what search engines like Google does, storing all the data collected in their huge and vast data centers in the thousands and thousands of petabyte worth of drives.

Retrieving and Ranking:
Retrieving is the process of returning the most relevant page results for your search query. Each Search Engine has its own search criteria based on which the results are displayed to match your search query at best after going through the billions and trillions of pages in their database.
Search Engines are now keeping their search algorithms in mystery to avoid web creators from unfairly climbing the top as in the early days of Search Engines usage.
If you feel still confused a bit or want to have more understanding of a search engine works, here, go through this video below.

How Are Search Engines So Fast? 

Have you ever come across the problem searching your computer for a file that has been saved in an unnoticed location by mistake and closed. Remember how slow your system works for searching that file from an unknown location from the storage of just a few hundreds of files.Now go to a search engine like google or bing or any other and search for a query, you get the results at the blink of an eye. How do you think is this possible for search engines to work so fast?Because search engines unlike our computers won't look for each and every file every time you do a search. They have the pages crawled and indexed and when searched for a query, it takes very less time to retrieve the stored results on to the screen. 

How do search engines rank websites?
That used to be a very easy job for search engines to rank websites in the beginning. It just is the matter of finding the pages with keywords used in the pages and build back links. Thus making the job of an SEO simple by just filling the page with keywords multiple times and building huge links in whatever and every means possible. But this turned out the search results spamy.
Now Search Engines turned far smarter that they developed Algorithms that use various factors to rank the web pages. Few of the vast list of factors include but nor limited to keywords in the page content, on-page factors, off-page factors, social popularity, content quality, backlinks quality and quantity, etc.
Websites that rank better get positioned in the best places in the search results page.

Why do search engines give different results?
Yes, Google search results are not the same for everyone and vary from person to person and different from computer to computer. This is to better facilitate the user with their interests. Few reasons behind seeing different results are your physical location, search history, etc.

How do search engines make money?
While every search results so accurately and perfectly delivered at free of cost, what do you think will run these search engines to pay for its employees? Its obviously their ad network that serve the purpose.

When you search for a query along with the results, search engines like google also some most relevant ads to the right and on the top of the SERP. Those ads that you see around the search results are one of the money earners.
About 85% of the money that Google makes is from advertising. Even Gmail is a way for advertising that forms a part of the earnings. Records show that for every search made Google earns around $50.

What Search Engines exist?
There are lot of search engines available but as best always stands out, here are a few mostly used search engines Google, Yahoo, Bing, Ask.com, AOL.com, Baidu, Wolframalpha, DuckDuckGo, Archive.org, Yandex.ru

Which is the oldest search engine of the Internet?
Although the web was made public in 1990, until 1993 there is no search engine and all indexes are manually made. The search king Google has arrived in 1998 from then, indexation has started to be taken care by software programs. In the 5 year gap of web search availability and Google's birth around 20 search engines were gloriously enjoying, while many failed later.
webcrawler is the oldest still surviving search engine, Lycos, Altavista, Excite, Yahoo, Dogpile, Ask Jeeves, etc are few familiar ones.

Is Google a search engine or library database?
Google can be counted on as a Search Engine as its free and need no user account to search. Also, Databases have information that is credible and already verified. Whereas Google wont stand that way as a publisher can write any thin of their choice and post in the web.

World around is running on internet for whatever is the purpose, either for transferring information or connecting people across different ends or for any other purpose. Everyone from young to old, poor to rich might have heard the word INTERNET.
So, with internet being so important, have you ever wondered, How this INTERNET WORK? How is information transferred on computers whether they are connected via cables or wireless network? Ok, let me take you on a tour about what is internet and how internet works along with briefing about the key terminology.

How does Internet Work?

The Internet or the world of computers network being a part of everybody life connecting millions and trillions of computers digitally by one means or the other as either cables, fibres or wireless links. Internet is being used by everyone but the purpose might be different like to browse websites, communicate with people wherever they are and at whatever time, download pictures and videos, listen to music or for any other amazing purpose.
So, How does all this information(either textual or pictorial or video or any other format) move in this digital world, internet?
Making a request
So, consider that you opened a website with an image. For the image to load a request will be sent to the respective web server where the image is stored in the form of a Packet.  The packet is directed by special computers named routers and devices called switches from your computer to the web server containing the image you are asking for, wherever the web server might be located either near or in the other world.
The packet moves via the fiber optic cables set under the sea or via satellites.
Receiving Information
Now the packets are opened in the web server and the request raised is understood(like in this case, 'please send the image'), fetched in the web server and the corresponding image is again sent back in the form of packets. As the images are huge they are split into hundreds and thousands of packets to send to the request raiser. These packets not only carry the pieces of the image but also has the information regarding how these images can be reformed to their original shape, where they are going and from where they are coming from(web server details).
Different Routes
Directed by routers and switches, these images are sent to your computer by the web server. The packets may not take the same route, instead routers (as the name itself speaks) will direct the images in the fastest possible route. All the packets may not follow the same order in which they were sent.
Putting the packets back together
Now with all the packets reached your computer, your computer will follow the information sent by the web server, attached to the packets and puts the packets back in order and displays the image.
All this process of raising a request, sending information, receiving information and receiving the packets on your computer and displaying the image, all happens in just far less than a second.

Glossary
Data Packets
Information sent or received is split into small bits of data which is known as packets. Packets carry information about where the data is being sent to, from where the information is being sent, how to reassemble the split data to get the actual information requested. In simple words, a Packet is a virtual parcel that holds all important information like IP address of the computer from where the request is received and the IP address of the web server where the image (in this case considered) is stored.
IP Adress:
IP Address the acronym of Internet Protocol Address, is the unique address of each computer connected to the internet. As houses has postal address, so do computers have this IP address. IP address is a combination of numbers like 198.543.25.11.
Switch:
A smart device that connects different devices to form a network is called Switch. Hubs are other such devices that are simpler comparatively.
Router:
This is another such smart device that directs or routes information around the internet to reach the final destination in the fastest possible way. When packets arrive the router, the IP address is read and then are directed to the destination in the best possible route.
DNS:
A Domain Name System or DNS is a set of  computers standards on how the data is exchanged over the internet. DNS turns user friendly domain names like http://digitalmarketing-guide.blogspot.com into machine understandable IP address.

What are Header Tags and How do they influence Search Rankings

As an SEO, we regularly hear or come across many times header tags. It is of great importance to learn and understand what are header tags and what is their role in placing our website in the best position for the relevant search terms. So, firstly lets see what are header tags.

What are Header Tags?

Header tags as the name itself explains are usually the headings in a post. They are the most emphasized wordings of the text and usually are the largest text to stand out.
For example, in this article the text highlighted above "what are header tags?" is the header tag as it is emphasized and is created as a side heading. To be more clear, Header tags are the phrases that break a post (or the information in a post) depending on the hierarchy of the topic being discussed.

Types of Header Tags

Instead of mentioning as types we can say number of header tags. Header tags usually range from H1 to H6 depending on the depth of heading used. You can have more but in most cases that may not needed. H2 is the secondary sub heading under H1, H3 under H2, .. Usually H1 is considered as the main heading of the most and remaining as sub headings under each other.

As you see in the above header tags hierarchy picture, the hierarchy continues with more sub-header tags under each other.

SEO importance of Header Tags

Having proper and necessary usage of header tags is always a good practice both for the user as well as the search engines. Because, it gives an idea for the reader of the importance of the topic as its emphasized. Also, users or search engines can easily understand what are all the topics being discussed at a glimpse of the headings directly. However, H1 tags do have a little direct impact on the rankings as they are the first emphasized text of the post that hits an importance to the bots, making bots consider and understand what is the post being discussed about and thus displaying the page in search results when some searches for the same topic as mentioned in the header tags.

Using Header tags is still a best practice if properly implemented. Rather than stuffing the header tags with keywords, use them properly with the proper context that the further content will be speaking of.

How to use header tags?

Using of header tags is not a big deal. Simply present the topic being discussed in a better way and you could definitely get benefited.

For example if your target keyword is 'Digital Marketing' then instead of writing a H1 tag as 'Digital Marketing' mention it as "What is Digital Marketing" and explain further about what actually digital marketing is then there are very good chances to win the race(while all other factors are also properly maintained). Relevancy always a point to consider while doing any SEO activity. 

If you plan to stuff header tags with keywords better dont use, as one day or the other your site gets hits by Google Algorithm updates. Instead if you use them perfectly, you definitely can experience the best benefits of using the header tags.

Start using them properly.

How many Header tags can be used?

You can use as many header tags, to be more specific as many H1, H2, H3, .. tags as you need but sure to be using them properly at places needed rather than for ranking purpose or for keyword stuffing.

What tools are used to check Heading tags?

There are various tools that are used to check heading tags through out a website. Few of the good ones include but not limited to SEMRush (specifically the SEMRush Audit Tool), SiteBulb Crawler, DeepCrawl, Screaming Frog or SEO Powersuite Website Auditor.

SEO Dictionary

This post will be updated regularly with new terms. So do follow..

After all these years of my experience in the field of Digital Marketing, I came with many words and thought of composing them at a single place easy to access not just for me but for many like you.
These SEO words are from basic to advanced level and they are heard most regularly in your daily marketing routine.
And make sure to come back regularly as this most unlike few others is regularly updated to keep any new wordings that I come across. I'll try to give the best and easy meaning possible, so as to make it easy for you to understand.

Above the Fold:
As the phrase itself says it means, the portion that appears in the top of a page before you scroll down any further whether its an email or a newspaper or a website or simply the part of the site that you see immediately after opening a web URL.
Google strongly penalizes sites that use too many ads in this area.
Absolute Link:
Any link that appears in complete without any truncates or relative link paths is an Absolute link.
Example of Absolute link: http://digitalmarketing-guide.blogspot.com/2019/01/blogging-ideas-that-are-definitely-win.html
Example of Relative link: ..../blogging-ideas-that-are-definitely-win.html
Activity Bias:
It is that practice or any action involved in ad targeting on the most relevant and engaging group, importantly by ad re-targeting techniques.
Ad retargeting:
Its similar to regular digital advertising whereas the target audience in this type are those consumers chosen depending on their previous internet activities or actions.
Adwords:
Adwords is Googles advertising service to assist business for advertising online. Via Google Adwords business can advertise on Google and its linked advertising networks.
Affiliate Marketing:
Affiliate marketing is a kind of marketing that turn more results. This marketing program allows merchants/suppliers/owners etc expand their market presence by paying individual agents registered based cost per action taken.
Here are a few top affiliate marketing networks:
Commission Junction - probably the largest affiliate network
Linkshare - another large affiliate network
Performics - another large affiliate network
Azoogle Ads - ad offer network focused on high margin / high profit verticals
CPA Empire - similar to AzoogleAds
Amazon Associates - Amazon's affiliate program
Clickbank - an affiliate network for selling electronic products and information
Age:
Age when looked from SEO perspective is used to measure the trust worthiness of any site. Many social networks and search engines look at a sites or pages or account age for the same purpose.
Ajax:
It is with this Asynchronous JavaScript and XML technique that gives access to webpages to ask the server for additional data or information without further loading any new page.
Example: Pop-ups that you see in some sites that ask for information from user are created using AJAX.
Alexa:
Alexa is Amazons search service website using which we can estimate the traffic of any website.
AllTheWeb:
It is Yahoos purchased search engine which Yahoo uses to test any new technologies or features.
Alt Attribute:
Alt attribute is used as an alternate name to images that describes what the image is about. This helps many search engines and even blind people who cant read what is in the image.
Analytics:
It is all about the tracking of users and their actions on the website or app like page views, conversions, retendancy, user paths etc. Its very important to understand any website or app traffic to reap best advantages.
Some of them are:

• Google Analytics - Google's free analytics program
• Conversion Ruler - a simple and cheap web based analytic tool
• ClickTracks - downloadable and web based analytics software

Anchor Text:
Similar to alt attribute for images, Anchor text is for links. Or in simple words, its the text that a user clicks to follow a link.
API
API is acronym for Application Program Interface which is a series of conventions or routines used to access software functions. Most major search products have an API program.
Arbitrage:
Many shopping search engines use arbitrage to get more traffic which is to take the advantage of market inefficiencies by purchasing and selling them again with a profit.
Authority:
Authority is a metric that shows the ability of a site or a web page to rank better in the search engines. The five main factors that are considered in calculating the authority are  link equity, site age, traffic trends, site history, and publishing unique original quality content.
Automated Bid Management Software:
With the increase in the complexity of the offerings of the Pay Per Click search engines, these softwares are created by the search engines and 3rd party developers to get on with the complexity in managing these offerings.

Here are a few popular bid management tools are

• Atlas OnePoint (formerly known as GoToast)

• BidRank

• KeywordMax

Backlink:
Backlink is a link referred to the website or web page or directory from other website or web page or directory. Backlinks properly developed ads good value to the site and even boosts the sites rank and traffic.
Bait and Switch:
This is a very usual technique followed by many merchants to attract customers. As the phrase itself says, customers are first baited in many possible means and then after vising the site the offer or attraction used by merchant will be switched. For example, you visit an offer(bait created by merchant) online and visit the website or store upon which the merchant either removes the offer or modifies it and tricks you in a way to make a conversion.
Behavioral Targeting:

Blogging ideas that are definitely a WIN WIN and earn same as your salary

If you are a blogger, you would by now have understood what this article is all about.. Yes! you are right, here in this post, I'm going to get to you a list of ideas that have won over the past, are winning now and will win in the future too. 

Its because they serve the purpose of the visitor. So, no more unnecessary discussion, let's directly walk through the list.

1. Listicles

Hmm! the name might sound bit unfamiliar but they are nothing but a post talking of a list of items. Eventhough there are +s and -s with Listicles as many other post types but believe me they are for sure followed by many because of the content they maintain. 

Its scientifically proven with metric and haven't you noticed that this article itself is a Listicle.

2. How tos

Isn't true that you have come across this blog post because you might have searched for something on "How to" like ' hot to start a blog' or ' how to chose a topic for starting a blog' or any other as such. Many sites like WikiHow, Quora, etc became of these 'How To' kind of blog posts.

Be assured, if you can figure out your niche group, list out what their curiosities are or what they are interested or looking for answers for then you can't help from making your blog popular.

3. Politics

Might sound doubtful, but think how many sites you should have been looking at daily with one kind or other kind of political discussion. If you can maintain that post regularity, straight to the point, find a political topic to discuss on whether national or international or to your locality; you are on the race.

4. Recipes

Yes, what you have seen is correct. Recipes.. people are running crazy for recipes these days. Although there are many to many street foods increasing day by day, still there seen is a hype in the interest of people in preparing home food and experimenting on various recipes. Old is Gold, New for a better day.. A blog on recipes would never fade out.

5. Beginners to Ultimate Guide

Starting your career, haven't you started with basics, thats from the beginners level. If so, then just imagine how many are there around looking in the internet for the same beginners stuff just like you did. That makes the point.

And taking to the ultimate means till the current, so you get everything covered in your blog. For example if your blog is something on SEO, you can start with basic terminology and then move to various topics, tools used, strategies, latest updates etc. thus covering everything under one roof.

6. FAQs

There are millions of questions answered and unanswered. Answered doesn't mean they are not asked again by another person, it just means that they have an answer available somewhere in the internet. But if you maintain well, you've good chance of winning the place. 

Google's knowledge graph uses FAQ's and you stand a very good chance of winning the top spot.

7. Interviews, Personal Stories and People featuring

Chose a niche and get the interviews of the top people of that niche or run a blog with the personal stories of people or it always catches visitors attention if photos and people are included in real time. Sharing personal stories will relate to a personal level. Below is an example of a blog featuring people.

8. Charities or crowd funding

Any actions of charity or relating events that either you participate or any others that are worth sharing will keep your blog engaged.

9. Review sites

Have you ever noticed that whatever you buy, these days you mostly go out and look at the reviews about it either it may be a product or a service. Hence why dont you notice the importance of a review site.

Via review sites bloggers can also earn income via affiliate marketing.

10. Funny and Interesting

Viral sites are those that turn very viral and become so popular over a fortnight or even less than that of their emergence its because of the interesting, funny content that they share in the form of videos, pictures, etc.

With the top 10 ideas mentioned in detail here are few more blogging ideas that would help you in choosing your blog idea:

11. Sourced News

12. Gifs and memes

13. Myth-debunking

14. Virtual reality

15. Internet of Things

16. Automation

17. Troubleshooting guides

18. Contests

19. Advice

20. Productivity tips

21. Travel

22. History

23. Parenting Tips

24. Upcoming Events

25. Internet Stars

26. Tech support

27. Gift ideas

28. Best-ofs

Best websites to get free or paid Themes

Have you got your domain purchased and ready to rock on the internet but has stopped at setting a theme that best fits your need or that interests you then you should move yourself into one of these websites listed below for one best theme either for Wordpress, Magento, Weebly, Prestashop, Shopify, or any other platform.

• Themeforest - https://themeforest.net/
• Elegant Themes - https://www.elegantthemes.com/
• StudioPress - https://www.studiopress.com/
• Thrive Themes - https://thrivethemes.com/

Comment below of any other websites you know, that provides either free or paid themes.

How to remove URL and anchor text in user comments on blogger?

Blogger with the best usability features have restricted bloggers ability at certain points one of which is the scope to edit the content of a comment. With a view to add to the SEO benefits marketers started posting comments with links to their sites which are not good for the corresponding site where the comment is posted.
Here Im going to share with you ways to remove the URL link in the comment section completely along with the anchor text and as well also explain how to remove URL link alone while leaving the anchor text as is.
After long search I've got this information and found it working, hope it helps you too.

Remove link and anchor text as well

• Go to the blog you want to implement this step
• Click on the 'Theme' in the left menu.
• Click on 'Edit HTML' that will take you to the code of the blog template.
• Now click 'Ctrl+F' and search for 
• Now just before the above bit of code paste the below code and click on 'save template'.

.comment-content a {
display: none; } 

Remove link and keep the anchor text

• Go to the blog you want to implement this step
• Click on the 'Theme' in the left menu.
• Click on 'Edit HTML' that will take you to the code of the blog template.
• Now click 'Ctrl+F' and search for 
• Before the above bit of code paste the below code and click on 'save template'.

• If the above trick didn't do the job then search for 
• Paste the below code above it.

Google Search Syntax 2 - Search Operators

As already discussed in our previous post on Google search syntax that helps in getting the most relevant and required results. This post further assists you in finding what you need that on other hand are not found using earlier syntax methods i.e., by using search operators. Using these search operators which are either a word or words or symbols in your search query you can see / get more controlled results. Worry not about the list, because the advanced search page is always handy for you to assist you in generating many of these searches.

Be noted that a search operator must be used without any spaces.

Search for an exact word or phrase "search query"	Use quotes to search for an exact word or set of words. This option is handy when searching for song lyrics or a line from literature. "imagine all the people" Tip: Only use this if you're looking for a very precise word or phrase, because otherwise you could be excluding helpful results by mistake.
Exclude a word -query	Add a dash (-) before a word or site to exclude all results that include that word. This is especially useful for synonyms like Jaguar the car brand and jaguar the animal. jaguar speed -car or pandas -site:wikipedia.org Tip: You can also exclude results based on other operators, like excluding all results from a specific site.
Search within a site or domain site:query	If you are looking for more results from a certain website, include site: in your query. For example, you can find all mentions of "olympics" on the New York Times website like this: olympics site:nytimes.com olympics site:.gov Tip: Also search within a specific top-level domain like .org or .edu or country top-level domain like .de or .jp.
Search for pages that link to a URL link:query	Using the link: operator, you can find pages that link to a certain page. For example, you can find all the pages that link to google.com. link:google.com link:google.com/images Tip: You can also search for links to specific pages, like google.com/images.
Search for pages that are similar to a URL related:query	To find sites that are similar to a URL you already know, use the related: operator. For example, when you search for related sites to the New York Times, you'll find other news publication sites you may be interested in. related:nytimes.com
Include a "fill in the blank" query * query	Use an asterisk (*) within a query as a placeholder for any unknown or wildcard terms. Use with quotation marks to find variations of that exact phrase or to remember words in the middle of a phrase. "a * saved is a * earned"
Search for either word query OR query	If you want to search for pages that may have just one of several words, include OR (capitalized) between the words. Without the OR, your results would typically show only pages that match both terms. world cup location 2014 OR 2018 "world cup location 2014" OR "world cup location 2018" Tip: Enclose phrases in quotes to search for either one of several phrases.
Search for a number range number..number	Separate numbers by two periods without spaces (..) to see results that contain numbers in a given range of things like dates, prices, and measurements. camera $50..$100 daytona 500 winners ..2000 Tip: Use only one number with the two periods to indicate an upper maximum or a lower minimum.

Secret Codes to Catch those Blog Commenting Sites

So as a part of SEO operations, blog commenting has its role. While someone do it genuinely commenting in a way that both the comment reader(visitor) as well as the client(on behalf of whom the comment is made) gets benefited but that may not be the same in everyone's case. Whether you may perform a black hat commenting technique or white hat or grey hat, these codes listed below when used in finding the relevant or niche website will definitely be helpful in providing you with the most appropriate results.
So here you go with the list.. Make the most and best possible white hat usage of them....
   1. site:.com inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
Example: For example, if you are looking for commenting on posts pertaining to the keyword "digital marketing agency" with the condition that it accepts commenting only if you login then your search should be like
site:.com inurl:blog "post a comment" -"comments closed" -"you must be logged in" "digital marketing agency"
   2. site:.org inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
   3. site:.edu inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
   4. site:.gov inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
   5. site:.com "powered by expressionengine" "ADD YOUR KEYWORD"
   6. site:.org "powered by expressionengine" "ADD YOUR KEYWORD"
   7. site:.edu "powered by expressionengine" "ADD YOUR KEYWORD"
   8. site:.gov "powered by expressionengine" "ADD YOUR KEYWORD"
  

 9. site:.com “Powered by BlogEngine.NET” inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
  10. site:.org “Powered by BlogEngine.NET" inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
  11. site:.edu “Powered by BlogEngine.NET” inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
  12. site:.gov “Powered by BlogEngine.NET” inurl:blog "post a comment" -"comments closed" -"you must be logged in" "ADD YOUR KEYWORD"
 

 13. KEYWORD "add url"
  14. KEYWORD "add site"
  15. KEYWORD "submit url"
  16. KEYWORD "submit site"
  17. KEYWORD "add link"
  18. KEYWORD "submit link"

You can find resource pages using these search strings in Google:

“Keyword” + inurl:resources

“Keyword” + intitle:links

“Keyword” + “helpful resources”

“Keyword” + “useful resources”

Free SEO Tools List

Hi everyone

This week I bring to you the biggest list of SEO tools, more importantly is that all these are absolutely free(by the time I incorporated them into the list) mentioned below along with what they actually are explained in a single sentence. I'll add more if any that I come across in future.
Also I request you to please comment below about any tool from the list that you have used earlier or have been using explaining about it so that it makes things bit easier for the next ones. And be sure to comment any new tool that I might have missed.
You may also be interested in few of my other posts on Keyword tools, softwares and websites; List of Backlinks Checker Tools, Websites and Softwares and lastly Useful Softwares and Tools for Online Business 

Get ready for the big list well arranged. Hope this post will be of good use to you all.

W3Counter	Displays reports on who found your website and how they got there
Piwik	Gives you full control of analytics on your desktop and on mobile
Clickmeter	Monitor marketing campaigns and conversions all in one dashboard
Clicky	Monitor traffic to your website in real time
StatCounter	Provides a basic interface for your website statistics
YouTube Analytics	Provides data and statistics on YouTube videos
GeoRanker	Real time analytics and reports geared towards local SEO
Panguin Tool	Shows Google Analytics in relation to major Google algorithm updates
Google Analytics	Track analytics of your website
Browser Extensions
LinkChecker plugin Firefox Plugin	Analyzes links on a webpage and highlights whether they are live or dead links
Kgen Firefox Plugin	Analyzes webpages for dominant keywords with content improvement suggestions
SEO Rank Checker	Check site rank position for designated keywords from your browser
Check My Links - Chrome Extension	Checks webpages for dead links
Google Results Bookmarklet	Compiles search results into easier to manage lists of URLs
GA Debugger - Chrome Extension	Debugs Google Analytics javascript code on websites
SearchStatus	Displays important site SEO performance data about a website
Sharemetric - Chrome Extension	Displays page social share count in toolbar
MozBar	Displays pagerank, page authority, and domain authority of a website in the browser toolbar
PageRank - Chrome Extension	Displays the current website’s pagerank in the toolbar
Live HTTP Headers	Displays the HTTP headers of a webpage while browsing the website.
Firebug	Gives you a techinical view of webpages with css, html, and javascript
SenSEO Firefox Plugin	Gives your webpage an on-page SEO report card
Page Monitor - Chrome Extension	Monitors webpages in the background for changes done to the page
SEO Doctor Firefox Plugin	Provides easy SEO diagnosis and troubleshooting for your website
SEOQuake	Provides helpful background information on websites you are visiting or websites in the SERPs
SEO SERP - Chrome Extension	Quickly lets you find what SERP position a webpage is for certain keywords
Get URLs from Search Results	Returns just a list of URLs from a search query
Scraper - Chrome Extension	Scrapes lists and fields of data on any website and exports them into a spreadsheet
Google Analytics Opt Out - Chrome Extension	Tells Google to not track your visits in Google Analytics
SEO Toolbar	View many different SEO related elements of a website all in the web browser
Competitive Analysis
Searchmetrics Visibility Charts	Analyze competitor SEO performance and keyword information
SEMrush	Indepth analysis of competition keywords and search data
Quantcast	Show traffic data for any website
SpyFu	View competitor adwords campaign information and keyword data
Content
Piktochart	Allows you to quickly and easily generate infographics without a designer
nTopic	Analyzes your website’s content and makes improvements according to your keyword
Copyscape	Check for duplicate content on your website across the web
Plagiarism Checker	Checks text for plagiarism across the web
MyBlogGuest	Connect with blogs and bloggers for guest blogging
Help a Reporter Out (HARO)	Connects reporters with sources that might be featured in high authority sites
Infogr.am	Create good looking infographics quickly and without a designer
Google Public Data	Publc data search resource for finding various statistics
Conversion Rate Optimization
Click Tale	Analyze customer experience with visualized and meased in-page behavior
Optimizely	Apply and monitor A/B tests to your website
Visual Website Optimizer	Perform a/b testing and multivariate testing on your website
Usability Hub	Shows people your site for 5 seconds and asks them questions about it to help you improve conversions
Desktop Applications
URL Explorer	Analyze your site for duplicate content, missing pages, and many other elements throughout your website
Keyword Pad	Batch process keywords for in depth keyword analysis
Xenu’s Link Sleuth	Checks websites for broken links
Traffic Travis	Complete SEO and PPC dashboard
Good Keywords	Manage keywords and create long tail keywords and keyword phrases
Screaming Frog	Performs extremely indepth analysis on website SEO elements
SEO PowerSuite	Reviews and analyzes your site’s SEO efforts
IIS SEO Toolkit	Toolkit for analyzing websites along with robots and sitemap features
Email
Banana Tag	Allows you to track emails, get open email notifications, and provides analytics on your sent emails.
Peepmail	Email finder for common contacts online
Boomerang	Email scheduling and followup for quick responses
Ontolo’s Prospect Filter	Filters previously already approached contacts from new prospect lists
Outreachr	Finds a list of websites and contacts according to what keywords you select
Linksy.me Email Guesser	Guesses email addresses and matches them to Rapportive in Gmail
Email Research Tool	Input the name and company of an individual and it will provide several search queries for finding their email address
Rapportive	Shows additional information about a contact from their email address right in gmail
Email Format	Shows probable email address formats for large websites and companies
MailTester	Validates if email address exists or not
Keyword Research
Keyword Density Analyzer	Analyzes URLs for on page keyword density among boxy text, links, and images
Google Places for Business Category Tool	Assists you in finding the correct Google Places category.
Bing Keyword Research	Bing’s Keyword Research tool with query volumes and suggestions
Term Explorer	Bulk keyword research and statistics tool
Trellian's Keyword Discovery	Compiles keyword search statistics for your keyword research
Keyword Niche Finder	Discover niches within a given keyword
Meta Keyword Research Tool	Get keyword suggestions from Google, Bing, and Youtube and email them to yourself.
Ontolo’s Keyword Generator	Generate keyword combinations from two lists of keywords
Ubersuggest	Input a query and ubersuggest will return a long list of ideas and suggestions on keywords and content topics
Keyword Eye	Provide in depth keyword research and reporting on your and your competitiors
Search Engine Optimization/KSP Tool	Provides convenient keyword statistics and search data
YouTube Keyword Suggestion Tool	Provides keyword suggestions and monthly search volume for YouTube promoted videos
Wordpot	Provides keyword suggestions with related daily searches
Negative Keyword Finder	Provides suggestions for negative keywords based on a given keyword
Microsite Masters	Rank tracking, automation, and ROI calculating for keywords and domains
Google Trends	Searches and keywords that are trending on Google at the moment
Keyword Suggestion Tool	Searches for relevant suggestions for any given keyword
Keyword Cloud Tool	Visual representation of the different keywords on a given webpage
YouTube Keyword Tool	YouTube keyword tool for finding keyword ideas for your YouTube videos
Link Analysis Tools
Disavow Link Analysis	Analyzes your Google backlinks for finding potential disavowed links
Ahrefs	Backlink Checker that shows links, linking domains, anchors, and best pages of a domain.
Open Site Explorer	Backlink Checker that shows links, linking domains, anchors, and best pages of a domain.
Majestic SEO	Backlink profile analysis and link database
Site Explorer	Checks for backlinks and provides additional link details
Remove'em	Checks URLs for over optimized anchor text
Fresh Link Finder	Discover fresh links to your website
Bing Link Explorer	Discovers backlinks for any website
Link Analysis Tool	Displays every link on a given URL with its anchor text and whether it is nofollow or not
Link Reporter	Displays how many links are on a page and separates internal, external, and nofollow links
Linkstant	Find out immediately when you receive new links to your website
Majestic SEO	Site explorer and backlink history checker
Mobile Apps
SEO & Link Analyzer	Analyzes link and SEO data for website URLs
mAnalytics	Android App for viewing Google Analytics
Analytics Tiles App	Dashboard for iOS devices that creatively displays analytics data
WebRank SEO	Display SEO ranking data on your Android device
SiteRank Lite	Displays Google PageRank and Alexa Rank for website URLs
SEO SERP APP	Displays keyword rank data and social shares for URLs
Woopra	Google Analytics dashboard for iOS devices
SEO watcher	Rank Tracking for Android devices
Productivity Tools
Yahoo Pipes	Automates common activities for saving lots of time
Ontolo’s Extract Unique Hostname	Extracts the unique hostnames from a list of URLs
Ontolo’s URL Reviewer	Open an entire list of URLs all at once in their own browser tabs
Remove Duplicate Items	Remove duplicate items from a list of things
Ontolo’s Remove URLs by Hostname	Remove URLs from a list that contain hostnames in another list
Ontolo’s Remove Duplicate Hostnames	Removes duplicate hostnames from a list of URLs by keeping the first instance of the hostname
Ontolo’s Count URLs and Hostnames	Returns the number of URLs or hostnames in a list of URLs
Resource Generators
Schema Creator	Automatically generates schema.org markup for different types of webpages
Local PPC Adwords & Keyword List Creator	Generate local adwords and keyword lists
XML-Sitemaps	Generate sitemaps for your website
Robots.txt Generator	Generates a robots.txt file for your website based on parameters you determine
Embed Code Generator	Generates an embed code for your content
Local Search Resource Generator Tool	Generates GEO Meta tags, GEO Sitemaps, hCard, and KML Location Code for local search optimization
Title & Meta Tags Generator	Generates titles and metas html markup
Geo Sitemap Generator	GeoSitemap and KML generator for local SEO
Local Business Schema (NAP)	Local business schema.org markup generator
Convert Word Documents to Clean HTML	Paste word document text into this tool and clean it up for HTML
Good Relations Rich Snippet Generator	Rich snippet generator for online businesses and stores online
Microdata Generator	Schema.org markup generator for local businesses
XML Sitemap Inspector	Validates and corrects sitemaps
Search Analysis
Google Places Tool	Analyzes Google Places listings and compares them to top competitors in the area
Cygwin	Compare rankings between you and your competitors for certain keywords
Compare Search Rankings	Compare the rankings of a website across multiple search engines for designated keywords
Free Keyword Rank Checker	Keyword rank check for specified domains and keywords
Google SERP Snippet Optimization Tool	Previews what your Google search result will look like in Google
Soovle	Quickly search across multiple searching platforms
Advanced Search Query Tools
Ontolo’s Link Building Query Generator	Generate link building search queries automatically based on your keyword suggestions
Outdated Content Finder	Provides search queries tailored to find outdated content that you can easily update
Chase the Footprint	Search query generator for finding link building opportunities
DropMyLink	Search query generator for finding link building opportunities
Link Building Query Generator	Search query generator for finding link building opportunities
Search Latte	Search query generator geared towards international SEO searches
SEO Analysis
Analytics SEO	Analytics and SEO analysis all compiled into one large SEO utility suite
Image SEO Tool	Analyzes images for best SEO practices in image optimization
Bing SEO Analyzer	Bing’s SEO analyzer that provides reports and analysis of your website’s on page SEO
Whitespark Local Citation Finder	Discovers additional search phrases for local SEO that your pages can easily be optimized for
Side-by-Side SEO Comparison Tool	Evaluates your on-page SEO efforts in comparison to up to 4 other websites
Seorch On-Page SEO Tool	Gives in depth analysis of a website’s on and off page SEO
Web Page Test	Provides an in depth evaluation of SEO elements on your website
Site Analysis
WebCEO	Allows your to research, promote, and track SEO elements of you and your industry
Google PageSpeed Insights	Analyze how long it takes your website to load
Google Webmaster Guidelines Check	Analyzes a site against Google Webmaster guidelines and provides suggestions for improvement
Bing Webmaster Tools	Bing’s Webmaster Tools for analyzing your site in Bing searches
Hubspot Marketing Grader	Check various areas of your website and grades you on your marketing efforts
Google Structured Data Testing Tool	Check website for structured data for search appearance
The Reaction Engine	Complete site analysis of on-page SEO
Rob Hammond's SEO Crawler	Crawls an entire website for potential SEO issues and displays relevant SEO information about each page
Alexa	Detailed analytics displayed for any website on the internet
SeoSiteCheckup	Detailed report on a site’s SEO
Keyword Density Analysis Tool	Determines what the keyword density is for a certain URL
GoingUp	Easily check the on-page SEO of any website including the keyword optimization for that page
SEO Crawler	Finds errors on your website and your competitors for best SEO practices
BuiltWith	Gives you valuable information as to what technologies are used on certain websites
WooRank	Gives your website a complete analysis of visitors, local, social, mobile, SEO, usability and technologies used
Nibbler	Gives your website a report card for the various elements that a website has
Google Webmaster	Google’s site analysis for optimizing various elements of your website
Sindice Web Inspector	Inspects/validates HTML against w3c.org validator
Cuutio	Monitors you website’s statistics and compares them to competitor’s
SEOMastering.com's SEO Audit	Performs a site worth analysis and SEO evaluation for a given URL
SimilarWeb	Presents data and analytics on a given website
BROWSEO	Quick and easy tools allows you to analyze your site and view it like a search engine would crawl it.
SEOptimer	Reviews and analyzes your site’s SEO efforts
GTmetrix	Scans your website giving you a detailed performance evaluation
Request Checker	Shows how many requests and services a webpage makes each time it loads
Spider Simulator	Shows you exactly how Googlebot views your website
Pingdom	Test page speed and determine exactly what is causing bottlenecks
W3C Feed Validation Service	Validate a website’s markup and provide correction suggestions
Sitemap Validator	Validate sitemaps and check them for errors
Google’s Safe Browsing tool	Website diagnostics for malware
Social Media Tools
Buffer	Allows you to schedule posts to major social networks ahead of time
Get Listed	Displays local business accounts that your company can easily obtain and/or does not currently have
Alternion	Links all of your social media and email accounts, displaying them all in one place.
TweetDeck	Manage multiple social media accounts and monitor interactions on Twitter
Hootsuite	Manage your social media presence across multiple accounts and schedule posts
Google SERPs Social Media Power	Analyze social media power of the domains ranked on SERPs
SharedCount	Check the number of social shares a certain URL has received
Social Media Count	Checks a link for how many social shares it has across several different channels
Author Backlink Crawler	Checks authorship of a URLs backlinks and displays how prominent those authors are
Youtube Reputation Checker	Checks your brand name for Youtube videos and shows you videos, views, and ratings
Social Mention	Discover social mentions about a given URL
Counting Tweets	Display the number of tweets a certain page has received
Pinalytics	Displays stats behind pinterest pins as well as its influence across other social media channels
Twitter Feed	Feed your blog or RSS feed directly to your Facebook, Twitter, or LinkedIn profile
subredditfinder.com	Find a relevant subreddit to share your content
Twellow	Find industry leaders and other Twitter users according to category
Twitter Counter	Get basic Twitter stats on you and your followers
Blog Social Analyzer	Input your blog’s RSS feed and it will return every blog post with how many social shares each one has
Facebook Page Insights	Insights on your audience and analytics on their interactions
followerwonk	Multiple tools for Twitter like bio search, user analysis, and analytics
CircleCount	Provides insights on Google+ accounts
Social Crawlytics	Provides social metrics for you and your competitors
Social Media Image Resizer	Resizes your images to be optimized for vairous social media accounts
Topsy	Search tweets for links, photos, videos and keywords and see how that topic is trending over time
backtweets	Searches for links on twitter
Tweriod	Tells you when your tweets will receive the most exposure
Social Media Analyzer and Tracker	View statistics for your various social media shares and have them tracked over time
Spreadsheet Tools
SEOgadget Extension for Excel	Allows you to conduct advanced Excel commands on SEO data with APIs from several different services
Content Strategy Generator	Assists you in developing content with generating ideas and showing recent content currently trending on certain topics and keywords
SEO Tools for Excel	Gives your excel document various SEO tools for better number crunching
Seer Toolbox	Spreadsheet that pulls in data from multiple SEO tools and services including Moz, Google Analytics, Google Scraper, Twitter, Klout, and more
Distilled’s Video Sitemap Guide	Video Sitemap Generator for self hosted videos
Web Utilities
IFTTT	Automate many different services to automatically perform different time saving tasks
KnowEm	Check for username, domain name, and patent availability for new brand names
Bulk HTTP Header Response Tool	Check multiple HTTP headers and compare them at once
SEO Cloaking Checker	Checks for search engine cloaking on given domains
GA Checker	Checks websites for missing Google Analytics and Adwords code
TextCleanr	Clean up text from formatting along with find and replace functionality
SimilarSites	Discovers similar websites to a given URL
NetComber	Displays the various websites owned by the same company
DNS Tool	DNS/WhoIs lookup tool
HTML Encoder/Decoder	Encodes/Decodes text into HTML friendly formats
Domain Extractor	Extracts the domain from a batch of URLs and exports into CSV
Extract Page Names from URLs	Extracts the page name from batches of URLs and exports into CSV
Extract Title and Metas	Extracts Titles and Metas from batch of URLs
Google Correlate	Find correllations in data according to Google search keyword phrases
moreofit.com	Finds websites similar to the one you point it to
Google Alerts	Get email updates for various alerts of new content
HTTP Header Viewer	HTTP header viewer for analyzing/diagnosing website issues
Wayback Machine	Internet archive of websites in the past allowing you to historically go to websites at a certain point in time.
Domain Dossier	Investigate domains and IPs with WhoIs info and DNS records
Ping-o-Matic	Lets search engines know you have updated your website or blog
URL Opener	Open a list of URLs in separate tabs
Extract Links from HTML	Pulls links from HTML and exports the links in CSV
Bitly	Shortens URLs and provide analytics on clicks
MX Toolbox	Shows domain MX records for websites you type in
Domain Report Tool	Shows domain pagerank and additional indexing data for giving domains
CloudFlare	Speed up website load times with CDN and other web performance services
Smart URL List Cleaner	Ultimate list trimmer and combiner for deduplicating and combining multiple URL lists together
Link Prospector	Uses a special algorithm to discover potential link building opportunities
Wistia	Video hosting with complete control over video settings with advanced features like email forms and heatmaps
Last Modified Date	View the date a website was last modified
Validation Tools
Bing’s Markup Validator	Bing markup validator analyzes your sites markup and validates proper markup code.
Robots.txt Checker	Checks syntax of robots.txt files
Robots.txt syntax checker	Robots.txt validator
XML Sitemap Validator	Validate current website’s sitemap
Frobee Robots.txt Checker	Validates a website’s robots.txt files
Wordpress Plugins
Google Sitemap Plugin	Adds a sitemap to Google Webmaster Tools from Wordpress
WP Social SEO Booster	Adds Facebook Open Graph, Twitter Card, and Google Rich Snippets to pages and posts for better social share appearances
Headspace2	Adjust every element of each post and page of a Wordpress website
Internal Link Builder	Allows you to designate certain keywords and phrases on your wordpress site to automatically be linked to internal pages
SEO Friendly Images	Automatically adds alt and title attributes to all wordpress images
Squirrly	Checks your blog content for elements of SEO and makes recommendations for changes
Google Analyticator	Easy install javascript for Google Analytics and displays data on the Wordpress dashboard
Basic SEO Pack	Easy Wordpress site optimization for SEO
WordPress schema plugin	Generate the schema.org markup for your wordpress site
Open Graph plugin for Facebook	Optimize metadata for properly displaying your posts and pages on Facebook
Yoast WordPress SEO Plugin	Optimize your entire wordpress site and its content and automatically generate sitemaps
SEO Ultimate	Optimizes several areas of your Wordpress site for SEO