Devin

Operator

Cognition AI, Inc.

Type

AI Assistant

Official page

cognition.ai

robots.txt token

Devin

Follows robots.txt

Yes, according to ai.robots.txt.

In Vireo

Excluded, reported under AI crawlers

What it does

Devin is a software engineering AI assistant that can browse websites and perform web-based tasks, functioning as a collaborative AI teammate for engineering teams.

ai.robots.txt describes its function as: AI Coding Agents

Source: ai.robots.txt.

User agent

Requests from Devin carry user agents like these:

Mozilla/5.0 (compatible; Devin/1.0)

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36; Devin/1.0; +devin.ai

Device Detector identifies it with this pattern (a case-insensitive regular expression):

Devin

Anyone can put any name in a user agent. Where the operator publishes IP ranges, checking the request's address against them is the way to confirm a visit is genuine.

How to block or allow Devin

Add a group for its token to the robots.txt file at the root of your site. To keep it out of the whole site:

User-agent: Devin
Disallow: /

To let it crawl everything, use an empty Disallow: or Allow: / instead. WordPress serves a virtual robots.txt that many SEO plugins let you edit. A real robots.txt file uploaded to the site root takes its place.

robots.txt is a request, so it only works on crawlers that honour it. A bot that ignores it has to be blocked at the server or firewall, by user agent or IP address.

How Vireo counts Devin

Vireo keeps requests from Devin out of your pageviews and visitors and counts them on its bot report under AI crawlers, so you can see how much it left out rather than wonder why your server logs show more traffic.

Because it's an AI crawler, its requests also count toward the pages AI crawlers took, which Vireo shows next to the readers AI assistants sent back. See how the AI assistants card works.

Checked by running Vireo Analytics' own bot filter over Devin's user agents.

Sources

• Devin information page (cognition.ai)
• Matomo Device Detector, bots.yml (LGPL-3.0)
• ai.robots.txt (MIT)