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How many websites pass the Content Type Html check?
Based on 343 audited sites · Updated 2026-05-08
100%of audited sites pass this check
95% confidence interval: 98.9%–100%
About This Check
Checks that the response Content-Type is text/html. Non-HTML responses can prevent indexers and LLMs from extracting meaningful content.
Why This Matters
LLM Discoverability
AI crawlers use Content-Type to decide how to parse a response; non-HTML types are either silently skipped or misinterpreted, preventing reliable content extraction for training data and RAG pipelines.
SEO Impact
Search engines index HTML documents; a wrong Content-Type header can cause Googlebot to skip parsing entirely, leaving the page absent from search results.
Status Breakdown
100%pass(343)
0%warn(0)
0%fail(0)
Compliance Trend
Daily pass rate across benchmark snapshots (up to 90 days).
Industry Breakdown
How different industries perform on this check.
Other100% passavg score 67.4n=3
Energy100% passavg score 73.7n=3
Gaming100% passavg score 79.3n=3
Retail100% passavg score 77.2n=5
Travel100% passavg score 72n=3
Finance100% passavg score 75.7n=18