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Text to HTML ratio compares how much of a page's code is visible, readable content against how much is markup, scripts and styles. It has been a staple of technical SEO audits for years, mostly as a quick way to spot pages that are mostly code and very little substance. Paste your page's HTML source above and this checker calculates the ratio in your browser, nothing is uploaded anywhere.
The checker first removes anything inside script and style tags along with HTML comments, since none of that is content a visitor reads. It then strips every remaining tag to isolate the visible text, collapses extra whitespace, and measures that text's length against the length of the full HTML you pasted. Divide the visible text length by the total HTML length and multiply by 100 to get the percentage. A page with 5,000 characters of total code and 1,000 characters of visible text comes out to a 20 percent ratio.
No, and it is worth being direct about that. Google has never confirmed this ratio as something it scores directly, and there is no solid public evidence that it independently affects rankings. It survives as a diagnostic mainly because a very low ratio tends to correlate with real problems, bloated framework markup, oversized inline scripts, or pages that genuinely do not have much to say, and those underlying problems can matter even if the ratio itself does not.
Treat a low number as a prompt to look closer, not a target to hit. If your content is thin, the fix is writing more useful, specific content, not padding the page to move a percentage. If your content is substantial but the ratio is still low, the more likely culprit is heavy inline scripts or styles that could be moved to external files, or verbose markup from a page builder, both of which are worth trimming for page speed regardless of what this ratio says. Pages built heavily with client side JavaScript will also show an artificially low ratio here, since this checker reads the raw source and cannot execute scripts to see the text they render afterward.
A clean ratio never rescues thin content, and thin content is what actually holds pages back in search. Request a free SEO audit and we will show you where your content needs real substance, not just a smaller script tag.
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