Data scrapers and resellers

Crawlspace

Crawlspace is a bot that crawls pages into a dataset that is then reused or sold. Crawlspace is a web crawler platform that fetches and extracts website content for AI agents, RAG applications, and structured data workflows. It is documented as honouring robots.txt, but no IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine.

Crawlspace at a glance

Reference data for the Crawlspace crawler
User agentCrawlspace

Token only. The operator has not published a full user-agent string, so match on the substring rather than an exact header.

OperatorCrawlspace
PurposeData scrapers and resellers
Respects robots.txtYes, documentedsource
Verification methodNone published, user agent only

No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof.

Crawl patternNot published
Robots.txt tokensCrawlspace
Operator documentationNone published

Crawlspace is a web crawler platform that fetches and extracts website content for AI agents, RAG applications, and structured data workflows.

robots.txt

Allow or block Crawlspace

Paste one of these into the robots.txt file at the root of your domain. Rules are per token, so a block on one crawler leaves every other bot untouched.

Block Crawlspace
User-agent: Crawlspace
Disallow: /

Blocks every path for this crawler only.

Allow Crawlspace
User-agent: Crawlspace
Allow: /

Explicit allow. Useful when a wildcard rule above it would otherwise catch this crawler.

Allow, except the pages you never want quoted
User-agent: Crawlspace
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /search

Edit the Disallow paths to match your own account, checkout and search URLs.

What blocking actually costs you

Blocking Crawlspace stops your content being packaged and resold to third parties. Whoever bought earlier crawls still has them.

Block every crawler in the directory at once
Verification

Is that really Crawlspace?

A user-agent header is a string the client chooses. Scrapers copy Crawlspace precisely because site owners allow it. No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof.

Paste the IP address from your access log below. You will see whether it belongs to a hosting provider, a residential proxy pool or a Tor exit, plus the ASN that announces it, which is what tells you whether the claim holds up.

Related crawlers

Agentscan

Identify crawlers automatically instead of by hand

Agentscan checks a request against published crawler ranges, reverse DNS and hosting data, then returns a verdict your edge can act on. One call per request, no range files to keep up to date.

FAQ

Crawlspace questions

Crawlspace is a bot that crawls pages into a dataset that is then reused or sold. Crawlspace is a web crawler platform that fetches and extracts website content for AI agents, RAG applications, and structured data workflows. It is documented as honouring robots.txt, but no IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine.