100+ SEO terms and definitions you need to know

100+ SEO terms and definitions you need to know

Perhaps, almost all of us are all very familiar with the definition of SEO. But surely no one can claim that he already knows all these SEO terms.
I bet, there will definitely be a time when you will be in a situation. You read or hear people talk about a term in SEO but you do not know exactly what that word means.

Here are the entire SEO terms from basic to advanced I summarize when learning what SEO is. Hope they will help you to solve the “confused” when encountering a new SEO term. I hope that the article below helps you – especially newbies.

SEO terms list

301: Move Permanently

301: Move Permanently
301: Move Permanently

301: Move permanently means that the website you are trying to access has been redirected to a different destination. For example, you try to access mangafox.com but are automatically redirected to fanfox.net. Just try to access it.

Unlike 302 redirects, 301 redirects will pass all the link juice of the redirected website to the redirected website.

400: Bad Request

400 bad request means that the server you are trying to access cannot run at the moment. The current data is being changed, meaning it doesn’t follow the HTTP protocol at the moment.

Users should edit/review the correct link to be able to access the specific link.

404: Not Found

404: Not Found
404: Not Found

404 not found means that the website you are trying to access is not found on that server/website

This happens for several reasons:

  • The page may have been removed altogether or the content has been moved to a new destination.
  • The owner forgot to redirect the old link to the current link containing the content.
  • Or you may have mistyped the URL!

Affiliate Marketing

Affiliate marketing is a form of making money online by selling other people’s stuff and earning a commission on the products you sell. You don’t even have to buy a product once, just register to participate in the sale.

Click bank is one of the best places where you can sell information products. For example, Ebooks, online video/audio courses, etc. You can even enjoy 75% commission/ 1 product.


Algorithms are programs of search engines like google, bing, etc. to give you a solution to answer the question you posed to it.

Alt text/Alt Tag/Text Attribute

Alt text is an abbreviation of Alternate Text. Basically, alt text is a description for search engines and is the HTML of your website.

Alt text/Alt Tag/Text Attribute
Alt text/Alt Tag/Text Attribute

Every time you type a search keyword, the corresponding image will appear on the SERPs.

But in fact, Google can’t see the image, so you have to add that Alt text code. Because it can read the alt tag to understand what the image is about and then display the results accordingly. So don’t forget to add alt text to the image.


This is software that makes it easy for you to analyze your web pages in one account. It collects information about incoming traffic on your website:

  • Bounce rate (bounce rate)
  • Keyword (keyword)
  • And all other details of your website.

Anchor text

Anchor text is the clickable text of a link. Whenever you read any article, there is a line or a word that is blue and it has/or does not have an underscore. And if you click on it you will be taken to another website/url.

Anchor text
Anchor text

Anchor text plays a very important role in SEO top google. For me, it is one of the BIRTHERS that help me succeed in my SEO projects (1. Anchor text, title, URL; 2. quality backlinks).

Authority site

Authority site
Authority site

Authority Site One of the most trusted websites. When any website gets a lot of internal links and backlinks it could be because of the excellent quality of your content or it could be because of the readers trusting you; You tend to be an Authority Site.

This certainly won’t happen overnight! When you get more links coming from other trusted and authoritative sites, even Google will trust your site more.

The Authority Hackers website is a great example of this, or sites like Wikipedia you could say it’s the Big Authority Site.

Auctions Domains

Many of you can also think of PBNs immediately, Auctions Domains are domains that have been owned by someone before but when it comes to renewing the domain, that person does not renew it. Because they do not renew the domain name is brought to the auction. With this great method, you can easily find extremely high-quality domain names including their age and backlinks. These expired domains (old domains) can be used as a money site or a satellite website.


Backlinks simply mean earning links (links) pointing back to your website. It is also known by another name, Inbound Link. When other sites provide links to your site on their blogs or simply websites, Google tends to trust you more.

The more strong, trustworthy, and relevant backlinks you have, the better your chances of ranking well in the SERPs. Backlinks are one of the most important factors when it comes to search engine optimization, this is a result of a ranking study of 1 million pages.


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


Black Hat SEO

Black Hat SEO means the unethical practice of SEO principles. In this approach, website owners don’t follow any proper search engine guidelines but go all out to rank on SERPs and don’t care about website traffic or brand. and page income (You can think of SEO as the law and black hat SEO as methods to get around to rank on top of google)

If Google, or any other search engine, detects such web pages, they can be destroyed, played, and even “closed” forever (meaning it will never appear on Google again)


A blog is the part of your website where you post a variety of content that may or may not be related to your domain.

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

Just make sure your blog content is relevant to your domain name and that you post the right content


Bookmarks are a good indication that users have saved your site or any link to your site in their browser for future reference.

That means they like the content on that particular link and want to use it later in the future.

Bounce Rate

Bounce Rate
Bounce Rate

What is Bounce Rate? This is the percentage of visitors that land on your site and then leave quickly after sticking with just one page.

It means they quickly exit or return to the search engine. So, the higher the bounce rate, the lower your chances of getting to the top of Google, because this is a google signal that your website is not good/relevant/quality… to users.

And conversely, the lower the Bounce Rate, the more chances for your website to rank high on google

So keep them on your site for a long time by posting great content or by offering quality products with good features and attractive prices.

Broken Links

Broken links are created when you:

Enter the wrong URL or when the site has changed its domain name or their hosting is currently not working. This causes users to click on the link to be redirected to a 404 page, a page that is no longer active.

Branded anchor text

Branded Anchor text means you are using your company’s URL or brand name in the anchor text.


Cache or ‘Web Cache’ is a copy of web documents such as HTML Tags or Images or any other documents of web pages that you have visited, stored, and used while using the tool. Google search. It can also be stored in your external hard drive.
So, when you visit those pages again, the search engine uses Cache which helps to load the web pages faster, reduce bandwidth usage and reduce the load on the server, and it will prioritize that website more. Next time you visit

Canonical Link / Tag

It can be said that canonical links help search engines prevent duplicate content in ranking them on search engines.

The Canonical Tag is a canonical tag added to duplicate content pages to ensure that it doesn’t rank above the original content. It is similar to a 301 redirect, the ranking (SEO) page with duplicate content is replaced by (redirected to) the main content.

Call to Action (CTA)

CTA means you are asking/making a visitor take an action, for example, make a purchase, click on a link, or subscribe to an email list by providing their email. You’ll want your CTA to be clear and effective.

One of the most common mistakes I see people make is that they become “too obvious” by every page I visit they keep popping up damn pop-ups asking me to enter my email – FUCK!.

Click Bait

Click Bait is a technique used by bloggers/content creators to make users/you want to click on the link they have provided.

Click Bait
Click Bait

By giving their article a provocative or mysterious title, the user wants to know what happens next and ends up clicking the link you provide.

The main purpose is to attract attention and drive more traffic to their website for monetization/branding.


Cloaking is an Act that makes the content displayed to the reader different from what the search engine (in this case, google) reads. Is that Google reads A, and readers see B

Cloaking is widely used in Black Hat SEO. If caught by google, the site may be penalized or may be banned altogether.


Content is a piece of information published on a website for users. It can be an art, photo, document, or article.

Content Management System

Content Management Systems, widely known as CMS is a software application that allows multiple users with or without backend knowledge, to come together in one place and publish their content.

Content Management System
Content Management System

Example: User A knows nothing about the backend and technical tools like Code or HTML but still loves to write. So User A will probably get into an open source CMS software or application then all he has to do is write a nice piece of content and let the software do its magic in all. all the backend stuff, and then he can publish it on the website.

WordPress is one of the best examples of open-source CMS software.


Conversion is widely known not only in SEO but also in marketing and business circles. It means converting a visitor into a customer and hopefully, they will become loyal customers. It can be done through different options like:
Sign up to receive mail, buy goods, and receive e-books, …

Conversion Rate

Conversion rate is the percentage of visitors converting into customers or the percentage of traffic that converts into leads.


A web cookie or browser cookie is a small data file that is stored on the browser. It mainly stores all data and information about logins, shopping carts, credit cards, passwords, site preferences, etc.

So whenever you visit the same server which is the same website again, you don’t have to enter details anymore. Web cookies will do it for you automatically.

Cost Per Click (CPC)

Just like Pay Per Click, CPC means that whenever a user clicks on an ad, the advertiser has to pay a fee to the publisher who owns the website.

Cost Per Click (CPC)
Cost Per Click (CPC)

This is an advertising model to drive traffic to websites through advertising.

Cost per Thousand (CPM)

CPM is a marketing term. The advertiser has to pay a certain amount to the publisher based on 1000 ad impressions generated. The “M” in the CPM represents the Roman numeral for 1,000.


A web crawler, also known as a bot or spider, is an automated program on the World Wide Web that indexes data or structures it. And Crawl is when you ask Crawler to index the data/structure for the URL you want.

What is Crawl?

Crawl is when you call Crawler (bot or spider) to index the structure data for the URL you want.

Cascading Style Sheets (CSS)

Cascading Style Sheet is a term in code used to describe different parts of your website – how it will look, the structure and flow of the site, etc.

Content spinning – Spin Content

Spin Content means taking existing textual content and replacing it with a paragraph in which the words will be replaced with synonyms.
Never do this on a money site or PBN, because it leaves a Footprint, and in some cases, you will be considered a spam link (spam link).


Copywriting Is a sales article in words. One of the strengths of a website is that instead of having to hire a large number of sales people, your website can do all of this for you.


Citations are Web 2.0s and it will “require” you to enter information such as:

  • Name (name)
  • Address (address)
  • Phone (phone number)

Yellow Page is an example, You can turn sites like Facebook and other Web 2.0 into Citation when you enter Name, Address and Phone. ALWAYS, I say ALWAYS fill in the citation correctly because it will help you SEO Map to the top (you can also watch the video I explain and how to seo top google map as well as nearly 100 social networking sites) opportunity to get the backlinks I shared on that video – in the description).

Cost per action (CPA)

CPA is another way of making money from Affiliates, where you get paid based on an action that makes the owner profitable or valuable. It could be that every time you give someone an email signup link and they sign up, you get paid for it.


A form of web system software that helps you to easily manage your website and install WordPress.

Deep Link

A deep Link is a link that redirects you directly to a specific page and not to the main page/home page of that website.

Deep Links are good for SEO purposes as search engines tend to trust such sites more and help them rank better.

Dedicated Server

A dedicated Server is a server that you rent out completely and it will be separate from the server hosting company. It is reserved for you and will not share it with any other customer or company like Share Hosting

Directory Page

The Directory page here is an online site with different topics and categories categorized. The best examples are Yellow Pages, Dmoz, etc. When you sign up for these sites it’s like Citation, which will help you rank better in SERPs and especially google maps.

Disavow Backlinks

Disavowing means to refuse something. If you don’t want any backlinks or backlinks coming from any particular website, you can notify Google and will not include that particular link in your SERPs ranking score.

Since Backlinks are very important for any website, bad backlinks can be created (either by you unintentionally or by a competitor shooting bad backlinks at you) so you should report these backlinks to google. this and disavow it so that google doesn’t “think badly” of you.

Domain name

Domain or domain name is the unique name of your website. You can buy it from any of the different domain registrars.

SEO Term

You can check out all the top domain registrars below – these are the ones where I usually register domain names and get great reviews.


Domain Authority (DA)

DA is one of the scales to help assess the trust/strength of a website for google, this scale was created by Moz, you can view it by accessing the open site explorer or using the Moz toolbar. I have briefly talked about DA and DR in the following video.

Domain Rating (DR)

Similar to DA, but this scale is created by Ahrefs (of course the scoring will be different but in general, they all show the same role)

Duplicate content

Duplicate content means content that has completely or partially duplicated something on the internet.
Pages like these are not highly trusted by google, so they won’t rank high on the SERPs.

E-commerce site

An e-commerce site where they sell their own or someone else’s products online (eg lazada, tiki)

External Links

External links are links that, when you click on them, are redirected to another website.

Exact Match Domain (EMD)

Exact match domain or Near EMD (approximate domain name) are domains (domain names) containing your keywords. seo here is the name of the website.

These domains will give you a big advantage when you use those keywords, but BE CAREFUL, if you optimize it too much or optimize it improperly you may still not be top or worse, be penalized by Google. is a normal thing.


The footprint is one of those repeated signs that makes google suspicious and can penalize you. One of the footprint examples is your PBN/satellite hosted on the same hosting. You can learn more about the footprint here


One of the world’s largest outsourcing services for all industries, but with prices starting as low as $5. The people who outsource it are called Gigs, and the better the Gigs are rated and reviewed, the more trusted they are.


You probably know that Google is the largest search engine in the world today.

Google My Business

This is where you sign up for google for your business, helping to drive traffic to your website (see picture below).

To be successful in SEO google Maps, the first basic thing is that you have to register to google my business and create web citations, have the correct phone (number), address (address), and name (business name). You can watch the video here how I explain SEO google map


A specialized tool for link building, widely known as well as widely used in the SEO world. You can refer to the basic SEO GSA Ranker article: How to build quality backlinks from A – Z

Gray Hat SEO

If black hat SEO is a black hat technique and is not liked by google if you are discovered you die, and white hat SEO (white hat SEO) are techniques that follow google’s guidelines, then gray hat SEO is a mixture mix between black hat and white hat, both do not violate and violate google’s guidelines. PBN (private blog network) is one of these methods.


HTML is a language of the web, for example, when we talk to each other in English and Vietnamese, one of the web languages ​​that “chat” with each other is HTML.


Heading (H) is the title of your article page presented in the form of H1 and H2 tags with a font style that is usually larger than usual to attract attention.


Hidden text

This is a process/technique to hide the text of a website, for example, using white text written on a white background so that normal users will not see it.

This violates google’s SEO guidelines so if you get caught, you’ll be in big trouble.


If the website acts as a house, then hosting is like the “land” of your website.


This is a term that is talked about a lot in the marketing world, not just SEO. Impressions are the number of impressions with web users. One view = One impression.

Inbound Link

Inbound links are like Backlinks, a link from another website to your website.


Index google means adding a website to the search results on search engines so that customers can find your website when they search.

Internal Link

If an inbound link is a link from another website to your website, then an internal link is a link in your website and if users click on it, they will be moved to another part of your website.


Keywords are keywords that users type on search engines to learn about a certain topic. For example, a person who wants to do SEO services will go to google and type: “SEO service” to find information and cooperation companies.

Keywords can be long or short depending on “the most professional website SEO service in Singapore” or simply “SEO Singapore”
If you choose the right keywords and you can SEO to the top, it will bring you not only a lot of traffic and a lot of orders, as well as your company’s brand, which is known by many people.

Keyword density

Keyword density represents the percentage of how many times a keyword appears in the entire content. For example, your article has 1000 words in the word SEO repeated 15 times => keyword density = 15/ 1000 = 1.5%

Keyword density should not be too high and should not too low. A moderate keyword density can help you rank better in the SERPs

Keyword Research

Keyword research is an act of in-depth research and selection of the keywords that you think are the best to be able to write articles and start seo the keywords that you research. You can see how I research and build a set of keywords as well as how I seo 1000 keywords on 1 URL.

Keyword spam

This is an act of deliberately repeating keywords in the article and of course, it is not good at all.

Keyword Stuffing

This action is similar to keyword spam, which is an act of stuffing unnecessary keywords into the article to “hope” that google will rank for the keywords that we crammed into.

It can be good but if but do it with small intensity, because otherwise, google may even penalize your website.

Landing page

When you click on any link and you “land” on a certain page, that page is called a landing page.


A link is a piece of text (or text) that you can click on. When the user clicks on it, they will be redirected to another page that may contain an image or article.

Link bait

This is a technique or maybe an article strategy to target a large number of users (traffic) to your website and read articles as well as encourage other websites to link to your website ( give you backlinks), a good example of this is “listening” strategy is how I created this content: “104 SEO terms and definitions to know in 2021”

Link building

Link building is a process that helps a website to get many good/quality links to help that page rank higher in the SERPs.

You can check out how I build quality backlinks with my PBN or my link-building video series.

Link Farm

This means that a group of websites is linked together, A backlinks B and B backlinks A in an attempt to “trick” search engines to rank higher in the SERPs.

Link Juice

Link juice is like the power of a link that is passed to your website through another website. For example, if page A links back to page B, then the power of those backlinks is called link juice

Long Tail Keyword

A long Tail keyword is a keyword with a length of more than 2 words. The usual and effective method when SEO is that you will try to use long keywords first because it is easy to get up and then you will have traffic to your website and short keywords with a lot of search volume will slowly increase ranking.

Long Tail Keyword
Long Tail Keyword

Meta description

The meta description tag is the short text (limited to 160 characters) that appears under the title and URL of the SERPs search results.

Meta description
Meta description

Many people think that Meta description has a good influence on search engine results if it contains keywords, some people do not (I follow that number), but you should still add keywords because if it has an impact, it will be good for you and if not, you won’t lose anything (don’t spam all the keywords in it)

Meta Tags

Meta tags can be understood as a part of HTML tags, which google (search engines) uses to better understand the content of the website mentioned.

Meta keywords

Meta keywords are specific tags/keywords used to describe the topic of the article.

Money site

A money site is one of your main websites used to attract traffic (users) and then they can buy or click on ads on your website and you get money from it.

Natural link

Natural links are links that your website has naturally, not created by you intentionally for SEO.

No follow

Nofollow is a small piece of code used to put in a link, it serves as a signal to Google that this link is linked to another page, but google does not follow that link to that page.

Many people believe that no follow link has no effect on SERPs and doesn’t give you any link juice because google doesn’t follow that link to the linked website (in this case your website), but the truth is that google still follows but google will not give as much value as a normal do-follow link.

There are many web 2.0s that give you nofollow links, like youtube, but this doesn’t mean that a link from youtube has no value, the truth is the opposite but it won’t have as much value as a do-follow link.


Noindex is an instance of HTML and it is meant to prevent search engine bots from indexing those pages.

Off-page SEO

Off-page SEO is one of the techniques to help website owners get quality, relevant backlinks to help them rank higher in search results. Off-page SEO techniques are not just about link building as people often think. But it’s also social sharing, social bookmarking, and of course in SEO ways, I often pay attention to off-page SEO, specifically link building.

On-page SEO

On-page seo is a technique to help website owners optimize their website for search engines. This is done by techniques such as keyword density optimization, title optimization, website structure (one of the most effective structures today is silo), and above all, design so that the content is eye-catching. and easily shared on social networks. You can see the techniques and factors that influence on-page SEO through my videos.

Outbound Link

Outbound links are links on the website that when a user clicks on them, will be redirected to another domain (domain name).

Page Authority (PA)

Another Moz scale that helps measure the strength and authority of that particular page on the website (Specific Url)


Is an index of google to measure the power and authority of that page in the eyes of Google. This is an old indicator and google did not show it nor update it anymore in 2016

Private blog network (PBN)

PBNs are the sites you create/earn to create super-quality backlinks to your website. This is also one of my favorite link-building strategies.

You can refer to how I search PBN to build super quality backlinks from PBN to help rank top for the keyword “SEO service”


Google Panda is a google update that helps Google lower the ranking of low-quality and low-quality websites with thin content (fewer text articles) and increase the ranking of sites with high-quality content.


Google Penalty is the action in which Google punishes websites that don’t follow webmaster guidelines and try to manipulate search results by lowering their ranking in the SERP or by banning them forever.


Another series of Google algorithm updates focused on Checking for Anchor text, URLs, and “bad neighbors” – bad backlinks and spam to the website. I also made a very detailed video about google penguin and if you are penalized by Google Penguin, I also show you how to fix it within 5 minutes, you can watch that video here.

Research tools

The specialized Research tools are: Ahrefs, MajesticSEO, SEMRush, LinkResearchTools, and RegisterCompass are the tools that I love and use to research and use when doing SEO

RSS Feeds

RSS Feed is an acronym for Really Simple Syndication. A user can subscribe to this option to get the latest updates and announcements from the site. RSS is also a way (technique) that I use to automate backlinks to help improve authority and even rank top google in just a few days.

Reciprocal Link

Reciprocal Link A phenomenon where two websites together decide to link to each other in order to gain rankings in search results. ( A backlink B and B backlink A )


Google Sandbox is a phenomenon that the SEO world often mentions every time SEO on a new website (or when SEO a new keyword phrase). It’s like a period of time when Google challenges any new website, preventing it from appearing in the search results.

You can learn more about the Google sandbox here.

Search engine result pages (SERPs)

SERPs is an abbreviation of the phrase Search Engine Results Page, used to refer to the results pages returned by search engines (Google, Yahoo, Bing ..) when someone makes a search query to the search engines. this search engine.

Search engine result pages
Search engine result pages

Search Engine Optimization (SEO)

SEO includes a set of methods to help improve the ranking of a website on the search engine results page – SERPs.

Sitemap (sitemap)

Website Sitemap is a structured page or document that helps search engines or webmasters know about a website’s traffic and proper structure to help them index and rank better in the SERPs.

Spider (Crawler- crawler, Bot, Robot)

The Google spider is a special piece of software that collects data on a web page, analyzes it, and sends the data back to Google to help them index the pages and organize them accordingly.


What is Traffic? Traffic is the visitors and activity on your website. Higher traffic is also a signal to help you get better results in the SERPs.


Is a hidden scale of google created to evaluate a website reputable or not? You can watch my video about TrustRank and how to increase TrustRank for the website.

Web 2.0

Any website where content is built primarily by encouraging users to have their own pages. The first examples include MySpace and YouTube.

Or now some of the biggest Web 2.0s include Facebook and Twitter. Web 2.0 has the advantage that it is easier to SEO than a normal new website because it already has a small degree of authority with the search engines.

White Hat SEO

Contrary to Black hat SEO, white hat seo are techniques that comply with the laws set out by google that website owners apply to help seo in a sustainable way.


A free and open-source platform to help you create and design websites easily. Most of my websites and the vast majority of the world are using WordPress.

Improve your SEO knowledge comprehensively with: Website SEO Guide – Detailed SEO Learning Path for Beginners!


These are all SEO terms I try to think, research, and synthesize articles online, I hope it will help you a lot – especially for newbies.
If you still have questions about any term, you can ask us – Share Tool in the comments below!
I hope you will share this article with everyone and subscribe to my email list to keep up to date with the latest SEO news from me.

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