site.sitemap-index-nested
A sitemap index lists another sitemap index; Google reads only sitemaps from an index, not further indexes.
What to change
List every sitemap file directly in one sitemap index (up to 50,000), or submit each index separately in Search Console.
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 a crawl or a build directory. A warning is a problem that costs a page ranking, clicks or citations. Each finding takes 5 points 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 crawl https://example.com --rule site.sitemap-index-nested
Or from an assistant, with the MCP tool seo_crawl_site:
{
"url": "https://example.com",
"rules": [
"site.sitemap-index-nested"
]
}
To leave it out of an audit, pass --disable site.sitemap-index-nested on the command, or disableRules: ["site.sitemap-index-nested"] to a tool.
More in Site-wide checks
All 49 rules- Warning
site.robots-blocks-resourcesrobots.txt keeps Googlebot from scripts or stylesheets the pages load, so Google renders the pages without them. - Warning
site.sitemap-missingNo XML sitemap was found (robots.txt Sitemap: line or /sitemap.xml). - Error
site.sitemap-errorA sitemap could not be fetched or parsed. - Error
site.sitemap-too-largeA sitemap holds more than 50,000 URLs or more than 50 MB uncompressed, which search engines do not read (error); or it is larger than this audit reads (15 MB; 5 MB on the hosted server), so it was not checked (info). - Warning
site.sitemap-invalid-urlSitemap <loc> values that are not full http(s) URLs, or are 2,048 characters or longer. Search engines crawl sitemap URLs exactly as listed and drop these, so the pages they name are not submitted. - Warning
site.sitemap-lastmod-invalidSitemap <lastmod> values are not in W3C Datetime format, so search engines ignore them. - Info
site.sitemap-lastmod-futureSitemap <lastmod> values lie in the future. Google uses lastmod only when it is consistently accurate. - Info
site.sitemap-lastmod-missingA sitemap lists URLs but gives none of them a <lastmod>, so search engines cannot tell which pages changed. Bing calls lastmod a key signal for what to crawl again; Google uses it when it is consistently accurate.