
Keyword Density Analysis in JavaScript — Find Your Page's Top Words
SEO keyword density tells you how often words appear on your page. Here's how to analyze it. The Approach Fetch page HTML Remove noise (nav, footer, scripts, ads) Extract body text Count word frequency (exclude stop words) Calculate 2-word phrases (bigrams) Check target keyword placement Stop Words Filter out: the, a, an, is, are, was, in, on, at, to, for, of, with, by... Output { "url" : "https://example.com" , "totalWords" : 1450 , "topWords" : [ { "word" : "scraping" , "count" : 15 , "density" : 1.03 }, { "word" : "data" , "count" : 12 , "density" : 0.83 } ], "topPhrases" : [ { "phrase" : "web scraping" , "count" : 8 , "density" : 0.55 } ] } Target Keyword Check For each target keyword, verify placement in: Title tag H1 heading Meta description I built a Keyword Density Analyzer on Apify — search knotless_cadence keyword-density .
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