robots.max-image-preview-missing
An article page sets no max-image-preview, so Google Discover shows it with a small thumbnail instead of a large image.
What to change
Add max-image-preview:large to the page's robots meta tag (<meta name="robots" content="max-image-preview:large">), and give it an image at least 1200 pixels wide. Google Discover shows large images only to pages that allow them, or to AMP pages.
The documentation on developers.google.comA finding of this rule on a page carries the exact edits for that page: the markup it quotes, and what to write instead.
When it runs
Runs on every SEO audit: of a page, a crawl, a build directory or HTML. Info is a best practice: worth doing, rarely urgent, and --no-info leaves it out. Each finding takes 1 point off the page's score.
The severity here is the rule's usual one: a finding can be raised or lowered when the page gives a reason.
Run it, or skip it
Check a page for this rule alone, after a fix for instance:
npx @rivi-software/agentic-seo-check audit https://example.com --rule robots.max-image-preview-missingOr from an assistant, with the MCP tool seo_audit_page:
{
"url": "https://example.com",
"rules": [
"robots.max-image-preview-missing"
]
}To leave it out of an audit, pass --disable robots.max-image-preview-missing on the command, or disableRules: ["robots.max-image-preview-missing"] to a tool.
More in Indexing and robots
All 7 rules- Warning
robots.noindexThe page tells search engines not to index it (meta robots or X-Robots-Tag). - Info
robots.nofollowThe page tells search engines not to follow its links. - Info
robots.conflictingThe page's robots directives contradict each other (index and noindex, or follow and nofollow); Google applies the more restrictive one. - Warning
robots.malformed-directiveA robots directive is written in a form Google does not document, such as "no-index" for noindex (warning) or "noindex nofollow" without a comma (info). - Warning
robots.unavailable-afterThe page sets unavailable_after (meta robots or X-Robots-Tag) to a date that has passed, so Google no longer shows it in search results (warning), or to a date Google cannot read, so it ignores the rule (info). - Warning
meta-refresh.redirectA <meta http-equiv="refresh"> sends visitors to another URL. Google reads an instant one as a permanent redirect (info) and a delayed one as a temporary redirect (warning), and prefers a redirect from the server.