Audit rules

Mixed Content

The https page loads subresources over plain http://. In a QuikSEO audit, a failure of this rule has error severity and counts against the score. Below are the exact condition, its exceptions and the sources behind it, followed by the other rules of the same group.

01 — 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: http.mixed_content
Group: HTTP
Severity of a failure: Error
Counts in the score: Yes, whenever it applies to the page
Required for a score: No

Condition and Exceptions

Condition: https page loading http:// subresources: scripts, iframes, stylesheets, object/embed → fail error (active); only images/media → fail with severity warning (passive)
Exceptions: http page → not_applicable

Sources and Project Decision

Sources: Mixed Content (W3C Candidate Recommendation Draft, 23 February 2023) (W3C, Q87)
What is mixed content? (web.dev, Q70)
Project decision: Severities are project decisions [D]: active mixed content (scripts, iframes, stylesheets, object/embed) is an error, passive only (images, media, icons) a warning.

02 — HTTP

Other Rules in This Group

The other checks of the same group, each with its own condition and sources.

No Cache Validatorshttp.cache_validators
HTML Not Compressedhttp.compression
Page Answers With an Error Statushttp.error_status
WWW and Non-WWW Both Serve the Pagehttp.host_variant_duplicate
HTTP Protocol Versionhttp.http2
HTTP Version Not Redirected to HTTPShttp.http_variant_not_redirected
Page Not Served Over HTTPShttp.https
X-Powered-By Version Disclosedhttp.powered_by
Redirect Chainhttp.redirect_chain
Server Version Disclosedhttp.server_header
TLS Certificate Expiring Soonhttp.tls_expiring
Invalid TLS Certificatehttp.tls_invalid