If you follow search engine news at all, you’ve likely heard of TF-IDF. But what is it?
You can read more about this from the full post over on Search Engine Land.
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You’ve likely heard of TF-IDF, but may not know what it really means. The acronym TF-IDF stands for “term frequency – inverse document frequency”. As explained by Search Engine Land, it helps to “fill in the gaps of standard keyword research”.
If you run a TF-IDF analysis on a keyword, it’ll show you the most popular words used in the top 10 pages for that keyword. We know what keyword we’re looking for, but what are the other words that people tend to use alongside that keyword?
For example, let’s work backward. Your TF-IDF analysis might show that sites with your desired keyword use the words mug, water, filter, brewing, grounds, french press and beans quite a lot. Can you guess what the main keyword was? That’s right, coffee.
In the eyes of Google, a page about coffee that uses a lot of those other words will likely rank higher than a page that just focuses solely on their main “coffee” keyword.
The full article on Search Engine Land, which is linked in our show notes, gives some real-life examples of smaller sites beating larger ones thanks to other keywords, and a TF-IDF analysis of the sites will show you exactly why.
Running a TF-IDF analysis shouldn’t replace your traditional keyword research, but could be a great supplement to it. There are lots of free tools to help you get started, and you can find those in our show notes at digitalcast.org.