Rule page.canonical.missing
Add a <link rel="canonical">
page.canonical.missing is a check in Crawlmind's site audit that grades medium-impact issues of this kind. This page explains why the rule matters and the exact fix.
Why it matters
Without a canonical, search engines pick the URL to index themselves: usually the one with tracking parameters or the trailing-slash variant you didn't intend. AI assistants citing the page will then point at the wrong URL. A self-referencing canonical fixes both.
The fix
```html
<link rel="canonical" href="https://example.com/page" />
```