Before we starting to learn SEO, we should be familiar with all the terms and definitions of SEO glossary which will definitely help us to understand the SEO perfectly. Here we listed 77+ SEO terms and definitions sequentially. We all should learn all these definitions before jump through the learning of the Search Engine Optimization process.

Chapter 1: Terms and definitions Related to Search Engine

Search Engine:

A query robot who can index data from all of the website and capable to store them. Then at the time of querying it can show the relevant data to the querist. Examples: Google, Bing, Yahoo etc.

HTML Code:

 It is a web language which stands for Hypertext markup language.  By this language code, a web page is created.


 A word or a group of words which is typed in the search bar at the time of searching by a user.


SERP means “Search Engine Results Page”. It is a group of displaying relevant data on the first page of your query after your search. Usually, the total number of SERP data for the first page of Google is 10.

SERP Feature:

SERP feature result is not a traditional organic result but it is displayed by Google in SERP commonly known as Rich Snippets. Feature results add a visual layer to an existing result.

Featured snippets:

Featured Snippets is an Organic answer box which appears at the top of the search results page.


URL stands for “Uniform Resource Locators”. It is the individual addresses of all unique pages.


Algorithms are the process or system by which a search engine bot ranked a website organically. For Google bot, there is 200+ ranking factor to judge by the google bot to rank a website at its SERP.


The bot is a crawler or a spider which is used to automatically redirect content from the websites.


It is the process done by a search engine bot or spider to visit a website and store its data for the further search result.


Indexing is a method or technique by means of which a search engine gathered or stored data in its database from the websites.

Rank Brain:

Rank Brain is a robot or machine learning component of a search engine that works under the algorithm of the search engine and adjusts ranking by promoting the most relevant, helpful results.


The ranking is the process of showing the querist result in the first page by relevance to the query. This process is done by the search engine bot according to their ranking factor.

Page Rank:

Ranking a page of a website done by a component of the search engine’s core algorithm. The core algorithm bot is a link analysis program that measuring the quality and quantity of the page by its links pointing to it.

Organic Results:

The results are shown by the search engine without any paid advertisements is called organic results.

10 blue links:

The total number of websites with it’s link appearing in the organic result pages.

People also ask Boxes:

For some results, SERPs showing a list of questions related to the query is known as “People also ask boxes”. It is important to giving the querist some more information for his query.


Citations are popularly known as a “business listing”. By means of citations we can add our local business’ name, address, and phone number (NAP) on our website.


Navigation is a list of pages with its link that help a visitor to navigate the other pages of that site. You may often see that these appear in a list at the top of the website known as “top navigation”, or in the side column known as “side navigation”, or at the bottom known as “footer navigation”.

Ambiguous intent:

When a searcher searches a phrase, which is unclear to the search engines, at that time its need further specification. This specification is known as ambiguous intent.

Commercial investigation queries:

If a searcher wants to compare one product with another for the purpose of justifying the best one, it would be known as commercial investigation queries.

Informational queries:

When a user wants to know the answer to a question usually known as informational queries.

2xx status codes:

When a page load successfully it shows 2xx status codes.

4xx status codes:

When a page shows error while loading it is indicated with the status code 4xx.

5xx status codes:

If a server is unable to perform the request it shows 5xx status codes.

Chapter 2: Terms related to Site instructions


 A guideline or a list for the search engine’s bot to discover and index site content.

Crawler directives: 

It is manual process by which you are able to set an   Instructions for the crawler which pages you allow to crawl and index from your site.


A manually created link by another website to point a particular website is known as a backlink.

Internal links:

A manually created link by the site itself to point another page of that website is known as an internal link.

NoFollow tag:

A set of instruction for a search engine not to follow or index the page it’s on.

DoFollow tag:

A set of instruction for the search engine to follow or index the page it’s on.

Meta robots tag:

A set of code that gives instruction to the crawlers for how to crawl or index web page content.


A group of files that allow/disallow search engine bot to crawl a website particular page.

Chapter 3: Terms and definitions directly related to SEO


Popularly known as Search Engine Optimization is a technique by which one can be able to rank his website/page content in the SERP organically.

White Hat SEO:

The manual methods or techniques to rank a website in the SERP is known as white hat method or SEO.

Grey Hat SEO:

It is the method which does not directly violate the search engines rules is Grey hat method.

Black Hat SEO:

The methods or techniques which are applied to rank a website or page content directly violating the search engines rules is known as black hat SEO.

On-page Optimization:

On-page optimization including all of its on on-page structure, default settings and others data directly related to ranking a page. It is said to be that if the on-page set up of a site is ok it will be surely ranked without off-page optimization.


Off-page optimization including link building, guest post and other optimization carry outside the site page.

Technical Optimization:

Site structure, design, mobile-friendly optimization and site speed are the terms related to technical optimization.


When a page of the website violates the search engines quality guidelines, search engines penalized a website robotically or manually. It will hamper your search ranking and you may go to the bottom of the SERP.


In the field of SEO, you should be able to know the user intent. By means of this, you may know what a user actually wants to know by his query.


KPI stands for “key performance indicator”. It is a term by which we can understand how well an activity is achieving the goal of a business.

Local pack:

It is a pack of typically three local business listing. When a user searches a word with “near me” it shows the accurate local data.

Webmaster guidelines:

Every search engine has its unique webmaster guidelines. it helps a site owner to create unique content that will be found, indexed and perform well in the search results.

Chapter 4: Terms and definitions related to Keyword research

Search volume:

 Search volume is an estimated number. It indicates how many times a word was searched in the search engines for a certain area or in the whole world. Search volume normally counts in monthly search intends.

Keyword Difficulty:

Keyword difficulty is an estimate numerical score, count as to how a word or a phrase is difficult for a site to outrank their competitors. It is normally counted as out of 100.

Seed keywords:

It  is a term generally used to indicate the main keyword that is used to describe the product or service a site owner provide.

Long-tail keywords:

When a user types three or more words in search engines to find out his answer usually that words or phrases are known as Long-tail keywords. Long-tail keywords are famous in the field of SEO for its low competition.

LSI Keyword:

LSI stands for “Latent Semantic Indexing”. It refers to the phrases or words used to highlight the “targeted keyword” with a proper correlation with it. Using this type of keywords is a ranking algorithm of search engines to determine the content quality and relevance to the search term.

Chapter 5: Terms and definitions related to On-page Optimization

Title tag:

Title tag is an HTML element that is used to specify the title of a web page.


Alt-text is a markup language used to describe the image of a particular website.

Anchor text:

Anchor text also a markup language by which a link is build up through text.

Header tags:

The header tag is an HTML element which is used to indicate headings of a page.

Image optimization:

Image optimization including resizing of the image, using alt tag, making a sitemap for the image URLs location on a website.

Meta descriptions:

 A short description with HTML elements that describe the contents of the page that they’re on.


 If you move a URL from one location to another, you should use a code known as 301-redirect code.


By this term, a site owner tells the search engines which version of a web page is the original and which are the duplicates.


Allow google bot to re-index a page which is being removed from Google’s index.

SSL certificate:

SSL stands for “Secure Sockets Layer”. It is used to pass searcher data from webserver to the user browser.

Chapter 6: Terms related to Technical Optimization

Mobile friendly:

Making the “site accelerated mobile pages (AMP)” via “diet HTML,” for mobile visitors. It will make the site mobile friendly.


 It stands for “country code top-level domain,” It indicates which domain is for a particular country. For example “.” is the particular domain for Bangladesh. It is important for local business.

Site speed:

There are many different compression techniques that are used to reducing the file size which increases site speed.

Responsive design:

The responsive design indicates how the site is responsive to the web browser and mobile browser.

It is a code that provides additional information about the particular page to the user. It is stored as structured data in search engine using

Chapter 7: Terms related to Link Building & Establishing Authority

Google Analytics:

Google Analytics help a site owner to know how the visitors interact with his pages, where they come from and how many of them. it is a free tool of Google.

Guest blogging:

For additional link building, guest blogging is an effective method. It is a method of writing as a guest on another site to make an additional link for one’s own site.

Link building: 

When a site owner wants to increase his domain authority or page authority manually, he should go through the link building strategy. It is actually a referring code from one page to other pages of a particular website or a domain’s URL to another domain’s URL.


Web2.0 is a list of websites who allow you to create a free account to their site and building link for your own site. Here is a list of them

Chapter 8: Terms related to Measuring, Prioritizing, & Executing SEO

Bounce rate:

Bounce rate is the percentage of a total visitor who visits a site and leaves without any action.


It is usually known as Click-through rate. It is the ratio for clicking one’s URL by the user.

Conversion rate:

When one runs a business site, his primary intention is to allow people to engage with filling up forms, calling, signing up etc. When the people doing such job his site’s conversion rate increase. It is the ratio of people visiting and doing such job of a site.

Time on page:

 It is the time count by google analytics spent by people in a particular website before leaving.

You must know the above-mentioned SEO terms and definitions whenever you are interested in learning SEO. I think these will surely help you in the field of SEO.

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Md Delowar Hossain

Hello, I'm Md Delowar Hossain an SEO & Digital Marketing expert and also an article writer. I have a lot of experience in the field of SEO, Manual keyword research, Social Media Marketing, Email Marketing, Web Analytics, etc. I will lead your website in SERP's of Google, Bing, Yahoo etc using my 100% white hat SEO techniques and generate your targeted traffic.


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