Checks / Links, canonical and speed
Mixed content (HTTP resources on an HTTPS page)
Browsers block or flag scripts, styles and images loaded over plain HTTP on a secure page; the page can break or show a warning.
mixed_content · Links, canonical and speed · Warning
What triggers it
A page served over https loads at least one resource (image, script, stylesheet) from an http:// address.
What to change
Load every resource over https:// (or a protocol-relative path).
Example
HTML to put in the page:
<img src="https://example.com/img/blue-trail.jpg" alt="Blue trail running shoe, side view">How to confirm the fix
- Open the page in Chrome, DevTools > Console: no 'Mixed Content' warnings
- Press 'Re-check 1 page'
How common it is
We have not measured how common this is on a sample of sites. Counts appear here when a study covers it.
About this check
| Check ID | mixed_content |
|---|---|
| Report section | Links, canonical and speed |
| Severity | Warning |
| How it is decided | Measured: read directly from the page or the server's response. |
| Added | Version 3, 19 October 2026 |
| Status | Measured in every report |
| Report gives the code | No, the fix is described in words |
Related checks
- Internal links carry tracking or language parameters
- Links send readers to a page in another language
- Sitemap lists a page that is not indexable
- Orphan pages
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