Robots group merging
Combining rules from every group that matches the same product token.
What Robots group merging does not show
Under RFC 9309, matching groups are combined rather than only the first being used.
How CrawlCheck measures Robots group merging
One finding code measures it. Its share of all scans is computed from the live corpus when this page is served, not typed into it.
| Finding code | Share of scans | Guide |
|---|---|---|
ROBOTS_RULES_SHADOWED | 13% | Do AI crawlers and agents respect robots.txt? |
Every code, its rule and its current rate: the dataset page. Scan a site to see which apply to it.
Terms this definition uses
Product token · Product · token
Related terms in Crawling and indexing
How a crawler discovers, schedules, fetches and selects pages, and why a fetched page is not an indexed one.
Sitemap directive · Crawler identity · Product token · Identification string · Crawl frontier · Crawl queue · Crawl scheduler · Seed URL · URL discovery · Link extraction · Recrawl interval · Crawl frequency · Host politeness · Crawl rate · Crawl-delay · Longest-match rule · Wildcard rule · End-anchor rule · Robots cache · Robots parse error · Robots redirect · Robots unavailable · Sitemap · Sitemap URL set · Sitemap lastmod · Sitemap hreflang · Image sitemap · Video sitemap · News sitemap · Canonical cluster · Duplicate cluster · Index selection · Crawl demand · Rendering queue · Rendered HTML · Indexing pipeline · Index freshness · Index lag · Deindexing · Removal request · URL inspection · Crawl anomaly · Bot spoofing · Shared IP range · Web Bot Auth
Questions about Robots group merging
What is Robots group merging?
Combining rules from every group that matches the same product token.
What does Robots group merging not show or guarantee?
Under RFC 9309, matching groups are combined rather than only the first being used.
How does CrawlCheck measure Robots group merging?
Through the finding code ROBOTS_RULES_SHADOWED, each with a stated rule, evidence bytes and a live share of scans on the dataset page.
Which area of the glossary does Robots group merging belong to?
Crawling and indexing: How a crawler discovers, schedules, fetches and selects pages, and why a fetched page is not an indexed one.
← Crawl-delay · Longest-match rule →
See it in the full glossary · 772 terms across 19 areas.
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