151 SEO Glossary List for 2017

by Nitin Malik August 13, 2017
SEO Glossary

There are times when we come across a particular term while reading about SEO and then end up Googling about SEO Glossary or SEO Definitions.

SEO best practice keeps changing and evolving – something a comprehensive glossary should reflect.

This made me write this article on SEO Glossary.

SEO Glossary keeps getting updated every year.

Though there are already some SEO glossary published online, however, even the most comprehensive of them fail to cover the latest additions to SEO glossary.

I thought it would be a novel idea to write an SEO glossary which is up to date and more relevant to the modern SEO marketers in 2017.

If I’ve missed anything important or if any new terms come along post writing that would be worth adding, please drop me a note about it.

If you have a contribution or suggestion feel free to tweet me @iamnitinmalik.

So, let’s dive into the comprehensive SEO glossary, terms and definitions!


1.   Accelerated Mobile Pages (AMP)

The Accelerated Mobile Pages Project is a Google initiative to build fast loading pages for mobile users. So called ‘AMP‘ pages are designed to load quickly, whilst still including rich content such as videos, animations and ads. The pages are powered by the AMP HTML framework.



2.   AdWords

Google AdWords is Google’s Pay Per Click online marketing platform, first launched in the year 2000. Users can buy advertising across the Google network of web properties and also on other third party websites via the Google Display Network.



3.   Ahrefs

Founded in 2011 by Dmitry Gerasimenko, Ahrefs is an SaaS SEO platform most popular for its backlink discovery tool Site Explorer.


4.   Alexa

A website ranking tool that’s been around for a long time. Now owned by Amazon who have confusingly also given the name to the intelligent personal assistant used by their Echo smart speaker.


5.   Algorithm

Algorithm, sometimes shortened to ‘algo’, refers to a set of rules that a computer program, or in this case a search engine, uses to make calculations or fulfill a task. It is most frequently used in relation to Google’s algorithms. The PageRank algorithm is one of the most famous examples of a Google algorithm.



6.   Alphabet

Alphabet – full name: Alphabet Inc. – is Google’s new holding company as of August 2015. Based in California, the company has Google’s co-founders Larry Page as CEO and Sergey Brin as President.

The largest subsidary of Alphabet is Google Inc., and is also the parent company of other ventures including Google Capital, X, Calico, GV, Google Fiber, Jigsaw, Nest Labs, Sidewalk Labs, and Verily.


7.    Alt Text

Alt text (alternative text) is a word or phrase that can be added to an image element in HTML, used to describe the image to users and search engines. Eg: <img src=”/dictionary.jpg” alt=”Dictionary with red cover” />.



8.   Analytics

It is a software which makes it easy for you to analyze your website under one roof. It collects information about the traffic generated on your site, the bounce rate, the keywords, and all the other insights of your website.

Google Analytics is one brilliant tool to use to get the actual insights for your business.



9.    Anchor Text

Anchor text refers to the words or phrase used in the text of a link. The anchor text is found inside the <a> tag in HTML. Eg: <a href=”http://www.domain.com/”>This is the anchor text</a>.




10.    Arbitrage

Arbitrating is the process of exploiting market inefficiencies by taking advantage of the price difference between two or more markets.





11.    Article Spinning

Article spinning is the process of creating slabs of existing content that have been re-written or re-worded to manipulate search engines.

Some webmasters use spun articles with the intent to build bulk amounts of new backlinks. This practice is a direct manipulation of search engine quality guidelines and may result in a Penguin penalisation by Google.




12.    Authority

Authority in terms of SEO refers to the authority of a website, which is measured by a variety of metrics and different services. A website that has attributes such as good rankings, strong backlinks and popularity, would be considered to have a high authority.




13.    Authority Site

An authority site is a particularly high quality website. An authority site could technically be a commercial website that is the authority on a topic, though for many SEOs in certain contexts (i.e. for the purposes of writing an article) an authority site is generally considered to be either governmental, an association, or otherwise neutral from a commercial perspective.






14.    Backlinks

Backlinks are links from one site to another. The acquisition of backlinks is usually a standard part of a full SEO campaign.




15.     Bad Neighbourhoods

Bad neighbourhoods refer to a website or a group of websites who engage in unethical or black hat practices. Been associated with any form of linking activities with bad neighbourhoods can put your website on high alert when detected by the search engines.




16.    Bing

Bing.com is a search engine owned and operated by Microsoft.




17.     Black Hat SEO

Black hat refers to an SEO or technique that that is more aggressive in nature. Blackhat SEOs frequently use combinations of (among other techniques) spam link acquisition and bulk site creation methods to try and rank in the search engine results.


18.    Blockers

A so-called website blocker is something that prevents search engines from accessing the site. As a result the website cannot be included in the search engine index and will not appear in the search results. For example, if an entire website is password protected, search engines will be denied access.




19.    Blog

A blog is a part of your website where you publish various kinds of contents that may be or may not be related to your domain name.

A blog helps you generate more traffic to your website thus helping you rank better on the search engine result pages.

Just make sure that your content is relevant to your domain name, and you publish the content accordingly.



20.    Blogger Outreach

Blogger outreach is the process of contacting and working with bloggers as part of a marketing campaign.


21.     Blogroll

A link listed on a blog which typically links out to other related blogs within the same industry or field.


22.    Bookmark

Bookmark is a good sign showing that the user has saved your website or any link to your site on their browser for future references.

It means that they liked the content on that particular link would like to use it sometime later in the future.




23.    Boolean Operators

Using boolean search operators it is possible to connect search words together to broaden or narrow a set of results.

The three basic boolean operators are AND, OR and NOT.

By default however search engines will usually apply AND for each part of a query unless specified otherwise.


24.     Bot

A bot (alternately spider, crawler,) is a software application that runs automated tasks over the internet. Google’s main bot for web crawling is Googlebot.



25.     Bounce Rate

Bounce rate refers to the percentage of users that view one page then leave a website. For example if 8 in every 10 users leave a website after viewing one page then there is said to be an 80% bounce rate.



26.     Branded Link

In terms of anchor text, a branded link is a link which contains to company brand or similar derivative in the anchor text. Example branded link for Evercoast Communications would be “Evercoast Communications”, “EvercoastCommunications” and “Evercoast.in”.



27.    Breadcrumbs

Breadcrumbs, as seen on websites or on search engine results pages, are set of navigational links that refer to root areas and categories of a resource.




28.    Brighton SEO

BrightonSEO is the biggest SEO conference in the UK by a long way. Founded by Kelvin Newman, conference tickets are known to sell out in minutes.



29.    Broken Links

A broken link is a link to a URL that is not working correctly. If a user were to click the link it would lead to a 404 page or other type of error page in the browser.



30.    Business Directory

A business directory is like an online version of the Yellow Pages. Every business directory contains an index of companies listed alphabetically by industry.

The individual entries are then often linked to the corresponding company’s website. The business directory helps users search for companies, services or products in their area in a more targeted way.

From the point of view of search engine optimization an entry in a business directory is important; it makes the website in question easier to find and creates an additional backlink.





31.    Cache

Cache or ‘Web Cache’ is a copy of the web document such as HTML Tags or Images or any other document of the websites that you have visited, stored and used by the search engines. It can also be stored in your external hard drives.

So when you visit back to those pages, the search engine uses the Cache which helps to load the websites faster, reduces the bandwidth usage, and lowers the server load.



32.    Call-to-Action

A marketing term for words designed to get the audience to take a specific action. For example, “Click here to find out more.”




33.     Canonical Tag

The rel=”canonical” link element can be used to specify the canonical URL of a webpage.


34.    Canonical URL

Canonical Link helps the search engine to prevent the duplicate content, rank on the search engines.

The canonical URL is the preferred URL a webmaster wishes to display for a particular webpage, and can be used to rectify a variety of canonicalisation and duplicate content related issues.

A canonical tag is added to the duplicate content pages which make sure that it does not rank while the original page does rank. It similarly redirects like 301, the rankings of the duplicate content link to the primary link.



35.    Citation (Local SEO)

When looking at local SEO, a citation is usually seen as a reference to the name, address and phone number (NAP) of a business.



36.    Click Through Rate (CTR)

Click Through Rate (CTR) is the rate, usually expressed as a percentage, at which users click an ad in PPC, or a link in a result set in SEO.


37.    Cloak / Cloaking

Cloaking is the black hat (and not recommended) practice of serving different content to Google than as seen by users. It is a technique that is generally still used only by spammers and those with malicious intent.


38.    Content Delivery Network (CDN)

A Content Delivery Network, usually shortened to CDN, is a distributed network of hosting locations that serve HTML or static resources based on user geo-location.


39.    Content Marketing

Content marketing involves the creation and distribution of content as part of a marketing strategy, usually designed to attract new customers.


40.    Content Relevance

Content Relevance is used to indicate how relevant a website is in relation to a particular search term or topic. The topic relevance is of utmost importance for search engine optimization.

The basic message is: The better a text or the content of a page matches a search query, the more likely it is that it will achieve a good ranking.

This means that Content Relevance can be considered as one of the ranking factors that Google uses for evaluating a website in its index.




41.    Conversion Rate Optimization (CRO)

Conversion Rate Optimization, usually shorted to CRO, is the practice of optimizing the user experience of websites and landing pages to achieve the most goals/revenue.




42.    Crawl / Crawling

Crawling is the process by which a bot visits a website. In the search engine indexing process, crawling is when a search engine bot (such as Googlebot), visits a web resource in order to view, parse, and then if required index the resource.




43.    Crawl Errors

Crawl errors are errors that occur during the crawling process by a search engine bot or other crawler.

Errors could include DNS errors, server connectivity issues, or errors caused by the unavailability of a resource such as the Robots.txt file.




44.    De-index / De-indexing

A resource that has been de-indexed has been temporarily or permanently removed from search engine results. the resource is no longer in the search engine index.


45.    Defective Link

A defective link is a link that has no object or does not lead to anything. Causes for defective links include programming errors, temporarily unavailable websites or if the address of the site connected to by a link has changed.

Defective links diminish the quality of a website and make the job of the crawler more difficult. For these reasons a website with defective links will appear lower down in search results.



46.    Domain Authority (DA)

Domain Authority is a metric created by Moz, which on a 100 point scale is designed to reflect how well a domain will rank in search engines. A higher score represents a higher domain authority.



47.    Domain Popularity

Domain Popularity refers to the number of backlinks (incoming links) from other domains that refer back to a website. No more than one backlink will be counted per domain (e.g. evercoast.in).

For example, in a blog about cars there are 10 different entries that have links to the website of a car dealer.

In this case, only one backlink would be counted for the blog.



48.     Doorway Page

A doorway page is a resource that is designed to attract SEO traffic but which usually contains little real value to users.



49.    Do-follow Link

A do-follow link (or ‘follow link’) is a link which has not had the Nofollow rel attribute applied to it. This means generally speaking that it is a link which passes PageRank. ‘Do-follow’ is not a value or attribute that is used in the code itself.


50.    Duplicate content

Duplicate content is text based content which appears in more than one location, or replicates partially or fully content that already exists elsewhere on the web.





51.    E-Commerce SEO

SEO that is focused on increasing traffic and sales for e-commerce related websites that sell products online.



52.    Expertise, Authoritativeness, Trustworthiness (EAT)

EAT, which is an acronym for ‘Expertise, Authoritativeness, Trustworthiness’, is a metric by which Google’s Quality Raters assess webpages.



53.     External Link

An external link is a link that points to a different website than the link is found on. For example a link from http://www.domaina.com/ to http://www.domainb.com/.




54.     Fetch as Google (Fetch as Googlebot)

Found in Google Search Console the Fetch as Google tool allows webmasters to submit to and check the rendering of a resource in Google – simulating a visit from Googlebot.




55.     Google Analytics

Google Analytics is a web analytics tool available at both a freemium and premium level by Google. Users can track information about visitors, including data on pages viewed and much more.


56.     Google Bomb

The process of multiple web users trying to change Google’s search rankings, often for comic (though sometimes malicious) effect.


57.    Google Bowling

Google Bowling refers broadly to negative SEO: the practice of trying to maliciously affect the results of a website or competitor.


58.    Google Dance

Google’s search engine results change frequently, and more so in the past when rankings and algorithms changed less frequently, this shuffling of results became known as the Google Dance.



59.    Google I/O

Google I/O is Google’s annual developer conference focusing on technologies such as Android, Chrome, Chrome OS, APIs and more. The I and O in the name of the conference stands for ‘input’ and ‘output’.



60.    Google News Sitemap

A Google News Sitemap is a sitemap used to assist Google in the indexing of Google News specific content. A Google News Sitemap should only contain resources that adhere to the various Google News guidelines.


61.    Google Posts

Google Posts is a limited new social service from Google. It is described by Google as “Your Podium On Google Search”.




62.    Google Places

Google Places is Google’s listing for local business search results. Google Places appears at the very top of the Google search results when a user is looking for local information.

It works by displaying the location of businesses that have registered with Google Places and are relevant to the user’s search on a small map. Links to websites that belong to these businesses appear next to the map.

Registration for Google Places is free. In addition to location and web address, businesses can also include opening times and photos of their business or products.

Google Places is especially important for businesses that have a predominantly local customer base or whose customers are searching for something in a certain location (e.g. hotels, amusement parks, etc.).




63.    Google Webmaster Guidelines

The Google Webmaster Guidelines are a set of suggestions and rules from Google that webmasters should follow to ensure websites are indexed optimally.




64.     Google Webmaster Tools

Google Webmaster Tools is the old name for the Google Search Console.



65.    Googlebot

Googlebot is Google’s primary bot that is used to crawl web pages.



66.    Grey Hat SEO

Grey hat SEO is the practice of SEO techniques that fall between white hat and black hat SEO. Much of SEO conducted could arguably be said to fall within the area of greyhat SEO.



67.    Growth Hacking

Growth Hacking is the practice of using data/analytical driven and viral marketing techniques to generate sales and exposure.





68.    Homepage

The front page of a website. Usually found at the root of a domain, eg http://www.example.com/.


69.    Heading Tags / Elements (H1, H2, H3, H4, H5, H6)

The heading element in HTML defines a structure for headings in a document. Starting with H1 as the most important heading, descending to H6, heading tags have been a standard part of HTML since HTML 2.0.



70.    Hits

Hits are visitors to a website. A successful campaign could be said to be one which delivered a lot of hits. Hits are not necessarily specific to a particular platform, they could be search engine visits, PPC, social media, or from people clicking a link on another website.



71.    Hreflang Tag

The hreflang attributes can be used to ensure the correct language and regional websites are served in search results. The Hreflang specification can be applied using the rel=”alternate” and hreflang=”x” attributes with the applicable language code inside a link element, via a HTTP header or a sitemap. Read our guide to the Hreflang specification here.





72.    Hummingbird

Hummingbird is a Google search algorithm, first announced August 2013. Hummingbird was aimed at understanding the concepts behind keywords.




73.    H1 Tag / Element

The H1 tag is the most important heading element on a web resource. Generally there should only be one H1 on a page, but it is not a major problem to use more than one if it helps to describe the content of a page, if there are for example there is more than one section on a page.




74.     Image Sitemap

An image sitemap is an XML sitemap file that is designed to show to a search engine the images used on a website.



75.    Inbound Link

An inbound link is a link that comes from another website.



76.    Index / Indexing

Index (noun) & Indexing (verb) in SEO can refer to various processes related to being crawled and then stored in a search engine’s database.

A webmaster that is having indexing issues is having problems at some stage that is causing a resource or resources not be found (indexed) in a search engine.


77.    Internal link

An internal link is a link that points to a resource found on the same website that the link is found on. For example a link from http://www.domain.com/about/ to http://www.domain.com/contact-us/.





78.    Jobs

SEOs usually work either at a marketing agency, in-house for an organisation, freelance, part-time, are self-employed, or own a company.

SEO job titles include: SEO executive, blogger outreach, link building, content marketing, technical SEO, campaign manager, account manager, SEO manager, Head of SEO, and executive level positions.


79.    John Mu

John Mu is Webmaster Trends Analyst at Google, and a very active figure in the webmaster community.




80.    Keyword

From an SEO perspective a keyword is a word (or phrase) from which people might find a website when used as a query in Google.



81.    Keyword Density

Keyword density tells you how often a search term appears in a text in relation to the total number of words it contains.

For example: if a keyword appears three times in a 100 word text the keyword density would be 3%. From the point of view of search engines, a high keyword density is a good indicator of search engine spam.

If a keyword appears too often in a website, search engines will downgrade the website and it will then appear lower down in search results.


82.     Keyword Proximity

A search term can be made up of a combination of keywords. The keyword proximity refers to the distance between the search term’s individual keywords. For example: a website contains the keywords that make up the search term “digital marketing agency New York” in the heading “Your professional digital marketing agency in New York; digital marketing agency for big brands and startups”.

The search term proximity between “digital agency” and “New York” is one word, between “digital” and “New York” it is two words. The smaller the distance between a search term’s individual keywords, the more relevant it will be from a search engine’s point of view.



83.     Keyword Planner

The Google Keyword Planner is a service for finding keyword ideas that is part of Google AdWords.



84.    Keyword Research

Keyword research is the process by which SEOs try to find the words and phrases that potential customers might search for to find a resource.




85.    Knowledge Carousel

Knowledge carousels, alternatively known as knowledge graph carousels, display lists of knowledge graph entities in a carousel format at the top of Google results.




86.    Knowledge Graph

The Knowledge Graph is a knowledge base system created and set of new richer features from Google first announced in May 2012. Knowledge Graph results provide structured and detailed information about topics.


87.     Knowledge Vault

The Knowledge Vault is a knowledge base project by Google that encompasses over 1.6 billion facts that have been collected from the internet.




88.   Link

A link (also see backlink) is a hyper-link that when clicked will take a user from one resource or area of a page to another.


89.   Link Bait

Link bait is a piece of content or action that is undertaken for the purpose of gaining links. An example of a piece of link bait might be an incendiary blog-post on a topic.


90.    Link Equity

Link equity is a concept that generally refers to the links has acquired via followed links or 301 redirected websites.




91.    Link Exchange

A link exchange is a relatively outdated and ill-advised method of acquiring backlinks, in which two people exchange links in some form.


92.    Local SEO

SEO that is aimed at local and regional listings in search engines.





93.    Meta Description

The meta description is an attribute that describes the content of the webpage to search engines. The meta description may then be implemented in the snippet shown in search engine results.


94.     Meta Keywords

Meta keywords are a now relatively outdated but still widely used way of indicating to search engines keywords that describe the content of a webpage. Meta keywords are not used by Google, but may be still be used by some search engines around the world.


95.    Mobile Usability Report

The Google Mobile usability report tool shows a count of mobile usability errors for a domain in Search Console.



96.     Moz (SEOmoz)

Moz (formerly SEOmoz) is an SEO focused SaaS platform and website aimed at SEOs and small business owners.




97.     Negative SEO

Negative SEO (also see Google Bowling) is the practice maliciously trying to alter the search engine results of a website or competitor.


98.     Noarchive

The Noarchive value when used in a Robots meta tag or similar method, instructs Google and other search engines not to store a cached archive copy of a resource.



99.     Nofollow

Nofollow is an value that can be assigned to the rel attribute in HTML, for the purpose of not passing on SEO value. No follow links are now the standard when it comes to comment links for example.



100.     Noindex

To ‘noindex’ a resource is to issue an instruction to search engines not to index (include) the resource in search engine results. Noindex is a value that can be applied to the Robots meta tag, or via another method such as using the X-Robots-Tag HTTP header.





101.    On-page Optimization

On-page optimization (AKA on-page SEO) refers to all measures that can be taken directly within the website in order to improve its position in the search rankings. Examples of this include measures to optimize the content or improve the meta description and title tags. Conversely, off-page SEO refers to links and other signals.




101.    Off-page Optimization

Off-page optimization refers to all the measures that can be taken outside of the actual website in order to improve its position in search rankings. These are measures that help create as many high-quality backlinks (incoming links) as possible.


102.    Open Graph Protocol / Open Graph META Tags

The Open Graph Protocol is a structured data platform created by Facebook. Using Open Graph Meta tags such as og:title and og:image it is possible to provide information about a resource to Facebook and other platforms.



103.    Organic Traffic

Organic traffic is genuine web traffic (users/visitors to a web resource) that originates from non-paid search engine queries. I.e. visits from search engines that did not come from AdWords or other paid search engine distribution channels.




104.      Page Rank

PageRank is a computer algorithm used by Google as part of their ranking systems. Developed in 1996, PageRank is named after Larry Page, one of the Google co-founders.


105.     Page Authority (PA)

Page Authority is a metric created by Moz, which on a 100 point scale that attempts to reflect how well a specific page/URL will rank in search engines. A higher score represents a higher Page Authority.


106.    Panda

Google Panda is a series of changes to Google’s algorithm for ranking websites aimed at improving results, named after the engineer Navneet Panda. Panda is often considered to be a content focused algorithm.


107.    Pay Per Click (PPC)

Pay per click, usually shortened to the acronym PPC, is a marketing model whereby adverts are shown to users with the aim of delivering traffic to a resource.

Advertisers are charged simply speaking on the basis of how many times users click the adverts and visit the resource. Google’s PPC marketing platform Adwords is the current market leader in much of the world.

108.     Penguin

Google Penguin is a series of algorithm updates designed to improve Google results. Penguin is considered to be an update that focuses on link related metrics.


109.     Pigeon

Pigeon is the name given to a Google algorithm launched in July 2014 that was aimed at improving local search.


110.    Preferred Domain

The preferred domain refers to the domain (www vs non-www) which a webmaster would like Google to use in search engine results pages.



111.    Private Blog Network (PBN)

A Private Blog Network, usually shorted to PBN, is a network of blogs created for SEO/link purposes.




112.    Query

A query is a request for information from a database or service. In SEO it refers more specifically to the query that a user makes to a search engine.




113.     RankBrain

RankBrain is a machine learning artificial intelligence project announced to be in use by Google in October 2015.


114.    Rankings

Rankings as they are known in SEO refers to the position(s) of a website in the Google – or another provider’s –search engine results pages (SERPs). Rankings in SEO refers to a website’s position in the search engine results page.

There are various ranking factors that influence whether a website appears higher on the SERP based on the content relevance to the search term, or the quality of backlinks pointing to the page.

Every search engine gives different weights to these ranking factors which is why when you enter the same search term in different search engines you will generally get different results.




115.    Reputation Management (online/SEO)

Online reputation management looks at the search engine results for certain keywords – usually for name or brand based queries – and often for the purpose of removing or pushing down negative results, or otherwise ensuring a good results set.


116.   Rich Cards

Rich cards are a new type of mobile-optimised search result format developed from rich snippets.



117.    Rich Snippets

Rich snippets are enhanced results in Google, such as those that have been customised with structured data.



118.    Robots.txt (Robots Exclusion Standard)

The Robots.txt file is used as communication method to control indexing from search engine bots. It is possible to allow and disallow all or specific search engines on areas of a website.



119.    Robots Meta Tag

The Robots meta tag can contain one or more comma separated values which instruct search engines as to how a resource should be indexed and/or its links crawled.

Possible values include Noindex, Nofollow and Noarchive. Index, Follow is the default value so does not need to be expressed.





120.    Root Domain

The root domain of a website is the shortest possible formation of a domain name/URL, not including a subdomain. For example website.com is the root domain of http://www.website.com/.




121.    Sandbox

The ‘Google Sandbox’ is an algorithm that has allegedly existed since 2004, a filter that potentially affects new websites and/or links.



122.    Search Term

A search term is what users key into a search engine when they want to find something specific. A search term can be a single keyword or a combination of words, e.g. “dentist” or “dentist Boston implant”.





123.    Search Console

Google Search Console (previously Google Webmaster Tools) is the search engine’s main webmaster portal. Search Console allows users to register websites with Google, adjust settings, submit sitemaps, and use a variety of site maintenance related tools such as Fetch as Google.




124.    Search engine friendly (SEF) URLs

URLs which are seen as friendly to search engines – specifically looking at the characters and symbols that come after the domain name. Namely URLs which have characteristics such as being clean of unnecessary information and descriptive as to topic of the page.





125.    Search Operators

Using search operators it is possible to possible to refine search results and access other search engine features. Operators include words such as site:, cache: and info:, as well as punctuation such as the minus symbol (-). The official list of Google search operators can be found here.




126.    Search Visibility

How visible a website is in the search engine results for different keywords. A website with a high search visibility can be found in high positions for multiple keywords and queries.



127.    SEO (Search Engine Optimization)

Search Engine Optimization, usually referred to by the acronym SEO, is the process of using optimization techniques to help a website or resource to rank properly in search engines, with the ultimate aim of delivering an increased amount of organic traffic, leads and customers.




128.    SERPs (Search Engine Results Pages)

SERPs, short for Search Engine Results Pages, are the search engine results for a particular keyword search.

129.    Sitemap

A sitemap allows webmasters to submit to search engines a list of crawlable resources for indexing.

It contains a list of all the sub-pages belonging to the website. These files help search engines to learn more about the structure of a website.

This speeds up the crawl process and reduces the likelihood that the crawler will overlook sub-pages.


130.    Static / HTML Sitemap

A static or HTML sitemap, is a user view-able HTML sitemap that links to resources that can be viewed by users and also crawled by a search engine for indexing.




131.    Structured Data

Using structured data markup it is possible to annotate content so that it can be understood by Google and other web applications. With structured data it is possible to get rich snippet results in Google for your web pages, and for the data to be included in the Knowledge Graph.




132.   Title Tag

The title tag (<title>) is used to indicate the title of a webpage to search engines.

The title tag is one of the most important SEO related elements on the page, and may be implemented by Google and other search engines as the main title in a search engine result snippet.



133.    Topical Trust Flow

Topical Trust Flow is a metric from Majestic that looks at the categorization of links pointing to a website or URL.




134.    Trust Flow (TF)

Trust Flow is a metric created by Majestic that is designed to reflect on a 100 point scale the quantity and trustworthiness of links that are pointing to a website or URL.

A higher score represents a site that appears to have more trustworthy and less questionable links.

To calculate the ranking Majestic look at a range of seed sites and work on a process they call Majestic Trust Flow.





135.    Unique Content

Unique content is a term used in SEO to mean text based content that is original and has not been used before. If a webpage is said to be lacking in unique content, it means that it has little content that is unique to that particular page.




136.    Vertical

A vertical or niche is a specific target market or area of operation in internet marketing.



137.    Website speed

Website load speed refers to how quickly a webpage loads for users. In 2010 Google announced that website load speed is now an official ranking factor.


138.    White Hat SEO

White hat SEO is the practice of SEO methods that are intended to stay within the Google Webmaster Guidelines.




139.    Widget

In terms of websites, widgets are usually simple dynamic apps that can be added to websites. Links included in widgets are subject to the Google Webmaster Guidelines.




140.    X (Google X)

X (previously known as Google X) is a research and development subsidiary of Alphabet.




141.    XML Sitemap

An XML sitemap is an .xml file that contains a sitemap/list of resources for search engines to crawl and index.



142.    X-Robots-Tag HTTP header

The X-Robots-Tag is a method of implementing Robots exclusion standards on resources via HTTP headers.





143.    Yoast

Yoast is run by Joost de Valk, developer of various plugins such as the Yoast SEO WordPress plugin.


144.    Your Money or Your Life (YMYL)

‘Your Money or Your Life’ (YMYL) is a phrase used in Google’s Quality Raters’ Handbook, which refers to pages where PQ (Page Quality) is particularly important – because they have “an impact on your current or future well-being (physical, financial, safety, etc.)”.




145.   200 OK

200 OK is a server response code that represents a successful load of the webpage. This is the standard HTTP status response.



146.   301 Moved Permanently

It means that a web page that you are trying to access has been redirected to another web page automatically.

So if you are visiting a link, whose URL has been changed, it will be automatically redirected to the new address by the search engine. This element is known as permanent redirection.




147.    302 Found

302 Found is a response code used for temporary redirection. It is less rarely requested than a 301, and is only used in situations where a redirect is known to be temporary.




148.   400: Bad Request

It means that the server was unable to process the request sent by the user. The data was malformed, that is, it didn’t follow the HTTP protocol properly.

So the user should modify the data link accordingly to the correct version to be able to visit that particular link.




149.    404 Not Found

It means that the web page you were trying to visit, could not be found on the server.

It can happen due to various reasons such as:

The web page you were trying to visit was removed permanently, or,

The web page has moved its URL to a new one but forgot to change it on the server accordingly. So the web page was not able to redirect to the new link automatically, or,

You could have typed an incorrect URL.




150.    410 Gone

410 Gone means that a resource is no longer available, and will not be made available again in the future.

This is used in situations where a resource has been removed and will not be made available again.




151.    500 Internal Server Error

500 Internal Server Error is a generic error message that means there was a problem that prevented the web page from loading.



I have tried to cover all important SEO terms.

You can use this SEO glossary to learn about key SEO terms.

If you have any other suggestion or query about SEO then let me know in the comments section below or tweet me @iamnitinmalik.

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Nitin Malik

Nitin Malik – Director Marketing @ Evercoast Communications – is a digital marketing consultant and Digital Marketing Trainer. Being a full-stack digital marketer and Guest Faculty / Speaker, Nitin works with Fortune 500 companies and start-ups. A digital marketer by the day and a blogger by the night, Nitin is passionate about helping individuals and brands transform their digital presence. He has led 70+ SEO and PPC seminars and webinars.

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