KernelSearchBot

Fully verifiable

Kernel's search crawler, which fetches pages to build search indexes and retrieval databases. The operator documents it as the Kernel-operated identity, distinct from the user-directed Kernel Agent, and signs its requests with HTTP Message Signatures (RFC 9421) under the Web Bot Auth scheme using the Signature-Agent https://search.bot.kernel.sh.

Operated by Kernel · Official documentation

User agents

Patterns this directory matches, with real observed strings.

regexKernelSearchBot
observedKernelSearchBot

How to verify

Fetch the Web Bot Auth key directory

curl -s https://search.bot.kernel.sh/.well-known/http-message-signatures-directory

Good Bot Practices scorecard

Identifies honestly
Stable UA token documented (1 pattern)
Verifiable
Fully verifiable
Respects robots.txt
Honors robots.txt (token: KernelSearchBot)
Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
Reachable operator
Operator and documentation published

Measured against the Good Bot Practices.