OWLer is the crawler of OpenWebSearch.eu, an EU-funded research initiative building an open European web index. OWLer-W is the warm-list variant focused on frequently updated content.

At a glance

Operator: OWLer-W
Type: Research

How Centinel checks it

User agent: The request calls itself this crawler. Anyone can send the same string.

OWLer-W publishes nothing Centinel can check a source against, so a match reports the name and leaves the source unconfirmed. The match tokens, verification domains, and address feeds are not published here.

Allowing or blocking it

The crawler object in the /validate response sets access_allowed to true only for a verified source that your tenant allowlists. A policy rule can allow or block this crawler by its category, Research.

Back to the crawler catalog