Glossary · Crawlers and access
datacenter IP
A source address belonging to a hosting provider rather than a consumer network.
What datacenter IP means
A source address belonging to a hosting provider rather than a consumer network. Many protection layers refuse or challenge it outright, which is why a scanner, an API client and an answer engine's crawler are often treated identically at the door: by where they come from, not by what they are.
How CrawlCheck measures datacenter IP
2 finding codes in the scanner read this. The share of all scans carrying each is computed from the live corpus when this page is served, not typed into it.
| Finding code | Share of scans | Guide |
|---|---|---|
ORIGIN_REFUSED_SCANNER | 0.2% | dataset |
UNIFORM_REFUSAL | 3.3% | How to check whether AI crawlers can read your site |
Every code, its rule and its current rate: the dataset page. Scan a site to see which apply to it.
Terms this definition uses
Related terms in Crawlers and access
Who is fetching, whether they are who they claim, and what your rules actually permit.
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 · off-host redirect · 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 · vantage point · rate limit · delivery comparison · honeypot
Questions about datacenter IP
What is datacenter IP?
A source address belonging to a hosting provider rather than a consumer network.
What does datacenter IP not show or guarantee?
A source address belonging to a hosting provider rather than a consumer network. Many protection layers refuse or challenge it outright, which is why a scanner, an API client and an answer engine's crawler are often treated identically at the door: by where they come from, not by what they are.
How does CrawlCheck measure datacenter IP?
Through the finding codes ORIGIN_REFUSED_SCANNER, UNIFORM_REFUSAL, each with a stated rule, evidence bytes and a live share of scans on the dataset page.
Which area of the glossary does datacenter IP belong to?
Crawlers and access: Who is fetching, whether they are who they claim, and what your rules actually permit.
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