AI answersUser agent + IP range

Google

Google-Read-Aloud

About this crawler

Google fetcher associated with read-aloud and assistant experiences.

Usually means: A person asked an AI assistant a question, and the assistant fetched this URL to answer with fresh context or citations.

User agent

Google-Read-Aloud

DataFast matches these as user-agent tokens, not full browser strings. Providers may add surrounding version or product text.

IP verification

Verified when user agent and IP range both match

DataFast first matches the crawler user-agent token, then compares the request IP with published ranges from the crawler operator when those ranges exist.

User agent

Request user agent contains Google-Read-Aloud.

Request IP

Server-side tracking forwards the crawler IP seen by your backend.

Range check

The IP is compared with published CIDR ranges or JSON range endpoints.

Sample IP ranges

2001:4860:4801:10::/642001:4860:4801:11::/642001:4860:4801:12::/642001:4860:4801:13::/642001:4860:4801:14::/642001:4860:4801:15::/642001:4860:4801:16::/642001:4860:4801:17::/642001:4860:4801:18::/642001:4860:4801:19::/64

Showing up to 10 ranges from the configured official sources.

Range endpoints

https://developers.google.com/static/crawling/ipranges/common-crawlers.json https://developers.google.com/static/crawling/ipranges/special-crawlers.json https://developers.google.com/static/crawling/ipranges/user-triggered-fetchers.json https://developers.google.com/static/crawling/ipranges/user-triggered-fetchers-google.json https://developers.google.com/static/crawling/ipranges/user-triggered-agents.json

Discover when bots and AI assistants crawl your website.

Install the server-side tracker to see which AI assistants, search engines, and training crawlers request your pages. It helps you understand what bots are trying to find, including pages that return 404.

Set up bot tracking npm package