CrawlCheck
Glossary · Crawlers and access

off-host redirect

A homepage that answers with a redirect to a hostname outside its own www/apex pair, such as a regional storefront or a checkout host. CrawlCheck does not follow it: whatever a crawler reads on the other host is attributed to that host, and the requested domain reads as a site with no homepage.

What off-host redirect means

Reported as HOMEPAGE_REDIRECTS_OFF_HOST.

How CrawlCheck measures off-host redirect

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 codeShare of scansGuide
HOMEPAGE_REDIRECTS_OFF_HOST3.1%Canonical URL audit: do tags, redirects and sitemap agree?

Every code, its rule and its current rate: the dataset page. Scan a site to see which apply to it.

Related terms in Crawlers and access

Who is fetching, whether they are who they claim, and what your rules actually permit.

visitor resolve · published crawler ranges · operator origin · signed agent · agent arrival · agent conduct record · agent traffic index · user-triggered fetch exemption · retrieval crawler · user-triggered fetch · verified crawler · forged crawler identity · unverifiable · robots.txt · user-agent group · AI opt-out · Content-Signal · crawl budget · cloaking · challenge page at 200 · uniform refusal · nonexistent-path control · blocked render resource · homepage refused · FCrDNS · Crawler trap · Conditional request · ASN blocking · operator feed · residential proxy · Google-Extended · Google-Agent · GPTBot vs OAI-SearchBot · ClaudeBot vs Claude-User · PerplexityBot vs Perplexity-User · CCBot · Bytespider · agentic traffic · crawler classification · user agent · datacenter IP · vantage point · rate limit · delivery comparison · honeypot

Questions about off-host redirect

What is off-host redirect?

A homepage that answers with a redirect to a hostname outside its own www/apex pair, such as a regional storefront or a checkout host. CrawlCheck does not follow it: whatever a crawler reads on the other host is attributed to that host, and the requested domain reads as a site with no homepage.

What does off-host redirect not show or guarantee?

CrawlCheck does not follow it: whatever a crawler reads on the other host is attributed to that host, and the requested domain reads as a site with no homepage.

How does CrawlCheck measure off-host redirect?

Through the finding code HOMEPAGE_REDIRECTS_OFF_HOST, each with a stated rule, evidence bytes and a live share of scans on the dataset page.

Which area of the glossary does off-host redirect belong to?

Crawlers and access: Who is fetching, whether they are who they claim, and what your rules actually permit.

← blocked render resource  ·  homepage refused →

See it in the full glossary · 772 terms across 19 areas.

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