How many websites pass the Viewport check?

Based on 499 audited sites · Updated 2026-05-08

94.6%of audited sites pass this check

95% confidence interval: 92.2%–96.3%

About This Check

Checks whether a viewport meta tag is present for mobile-friendly rendering.

Why This Matters

LLM Discoverability

The viewport meta tag has no direct bearing on AI content extraction, but its absence is a strong indicator of poor mobile optimisation, which correlates with lower content quality signals overall.

SEO Impact

Google uses mobile-first indexing; a missing viewport tag triggers mobile usability warnings in Search Console and can result in the mobile version being deprioritised in ranking.

Status Breakdown

94.6%pass(472)

5.4%warn(27)

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=7

Energy100% passavg score 73.7n=3

Gaming100% passavg score 79.3n=3

Retail100% passavg score 77.2n=5

Travel100% passavg score 72n=6

Finance96.2% passavg score 75.7n=26