Audit rules
Render Blocking Stylesheets
Stylesheets linked in <head> that apply to every screen (no disabled attribute, no narrowing media query) block the first render. The count and the first 10 are listed; review above 3. In a QuikSEO audit, a failure has info severity and counts against the score. The exact condition, its exceptions and its sources follow below.
performance.render_blocking_stylesheetsInfo01 — Definition
How This Rule Is Checked
The rule is a pure function of the fetched page: no extra requests, no account settings. The same input always gives the same result.
Rule Severity and Score
- Rule id
performance.render_blocking_stylesheets- Group
- Performance
- Severity of a failure
- Info
- Counts in the score
- Yes, whenever it applies to the page
- Required for a score
- No
Condition and Exceptions
- Condition
- <link rel=stylesheet> in <head> without disabled and with no media query narrower than all/screen; count and first 10; review above 3 [D]
- Exceptions
- Non-HTML → not_applicable
Sources and Project Decision
- Sources
- Eliminate render-blocking resources | Lighthouse | Chrome for Developers (Chrome for Developers, Q07)
- Project decision
- Threshold 3 is a project decision [D]: no document gives a count. A stylesheet blocks rendering unless it is disabled or its media query is narrower than "all" or "screen" (Lighthouse's conditions, Q07).
02 — Performance
Other Rules in This Group
The other checks of the same group, each with its own condition and sources.
- DOM Sizeperformance.dom_size
- HTTP Requestsperformance.http_requests
- HTML Page Sizeperformance.page_size
- Render Blocking Scriptsperformance.render_blocking_scripts
- Response Timeperformance.response_time
- Time to First Byteperformance.ttfb