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A Brief SEO Glossary of Main Keyword Terms

SEMrush Blog
A Brief SEO Glossary of Main Keyword Terms

It is estimated that the World Wide Web is now the proud owner of about twelve billion pages. Congratulations! That is a mind boggling number but it makes perfect sense because ever since businesses have adopted SEO (Search Engine Optimization) into their online arsenal, the numbers of online sales revenue have shot through the roof, putting the SEO in demand permanently.

But the SEO practitioners seem to have brought with them a language of their own, a language which is changing rapidly and that language can sometimes be impossible to comprehend by the layman. So, this is going to be like a guide for the laymen and SEO newbie’s of all the common terms which are used in SEO (because defining all of them would just be too much to write!)

What is Keyword Density?

The answer to this question is pretty straight forward. Keyword density is a term used in search engine optimization that refers to the number of times a keyword phrase appears on a particular web page.

In other words, keyword density is the percentage of times a keyword or keyword phrase is found in web page content indicating the keyword prominence on that page. For instance, if you have a web page with exactly three hundred words on it, including the headlines, captions, alt text, and the advertising, and you have inserted a specific keyword phrase that is on the page, let’s say, three times, then the keyword density of that web page will be one percent.

So, here’s your very own keyword SEO glossary:


This term stands for ‘Search Engine Results Page’. It’s basically the page you’ll get when you search for a specific keyword on Google or on other search engines. The page rank of your website will be determined by the keyword prominence on your web page.

Keyword Position:

A keyword position is the position of the keyword for your website on the major search engines like Google, Yahoo and MSN.


Stands for ‘Search Engine Marketing’, and as the name implies, it involves marketing services or products via search engines. SEM is divided into two main pillars, Search Engine Optimization and Pay-Per-Click. SEO is the practice of optimizing websites by using keywords positioned in their content/ webpage for the search engine to find them. PPC is the practice of purchasing clicks from search engines like Google, Yahoo or Bing.

Page Rank:

Page Rank is an algorithm that the search engine, Google, uses to estimate the relative importance of pages around the web by evaluating their keyword’s prominence.


A linkbait is a piece of web content that is published on a website or blog with the goal of attracting a lot of back links (in order to improve one’s search rankings). Usually it’s a written piece, but it can also be a video, a picture, a quiz or something of that sort.

Link Farm:

A link farm is a group of websites where every website links to every other website, with the purpose of artificially increasing the page rank of the sites that are present in the farm which have similar keyword positions. This practice was effective early on, but today they are looked down on as a spamming technique which could result in fines imposed on you.

Anchor Text:

The anchor text of a back link is the text that is clickable on the web page. Having strategic keywords positioned in rich anchor texts helps with SEO because search engines associate keyword prominence with the content of the website. For example, if someone has a weight loss blog, it would help the search rankings if some of the backlinks had “weight loss” as their anchor texts.

Meta Tags:

Meta tags are used to give search engines more information regarding the content of web pages which is defined with the strategic placing keyword positions in a webpage’s content.

This doesn’t make much of a read, but just in case you hear a nerdy word, I have two words for ya … Google it!

SEMrush Blog

SEMrush employee.

This profile is specifically designed for our old blog posts.
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