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Diffbot

Diffbot

TrainingNo fetched rangesVerified July 2026

What it is

Diffbot extracts structured knowledge from public pages for Diffbot's Knowledge Graph and crawl products. Aiola classifies it as training because it performs automated collection rather than a user-triggered fetch.

In Aiola's taxonomy, Training means scraped for model training or dataset development.

User agent

Look for the match token inside the complete HTTP User-Agent header. Tokens can be spoofed, so use the network checks below for authentication.

Full example User-Agent
Diffbot
Case-insensitive match token
Diffbot

Official IP ranges

Diffbot has not published official IP ranges that Aiola successfully fetched for Diffbot. Aiola does not list cloud-provider ranges or community guesses as if they authenticated this crawler.

Verify authenticity

Start with the source IP recorded by your trusted edge or server, not an untrusted forwarded header.

Reverse- and forward-DNS double lookup
host REQUEST_IP
# Confirm the hostname ends in an official suffix
host RETURNED_HOSTNAME
# The forward lookup must return REQUEST_IP

For production checks, test against every current prefix in the vendor feed. Re-fetch feeds regularly: a July 2026 snapshot is evidence of publication, not a permanent firewall list.

Control it with robots.txt

Diffbot documents crawler controls for this bot family. Robots.txt can direct cooperative crawling, but it cannot prove that a request is authentic.

Allow Diffbot
User-agent: Diffbot
Allow: /
Block Diffbot
User-agent: Diffbot
Disallow: /

Read Diffbot's official crawler documentation ↗

Track it

Aiola tracks this crawler on your site — crawls, pages, trends. See when Diffbot arrives, which URLs it requests, and how activity changes over time.

Explore Aiola Analytics

FAQ

What is Diffbot?

Diffbot extracts structured knowledge from public pages for Diffbot's Knowledge Graph and crawl products. Aiola classifies it as training because it performs automated collection rather than a user-triggered fetch.

What user-agent token identifies Diffbot?

Match the case-insensitive token “Diffbot” in the User-Agent header. A matching header alone does not authenticate the sender.

Can I verify Diffbot by IP address?

No official Diffbot CIDR snapshot was successfully fetched for this verification date. Do not treat an arbitrary cloud IP as proof of identity.

Can robots.txt block Diffbot?

Diffbot documents crawler controls for this bot family. Robots.txt can direct cooperative crawling, but it cannot prove that a request is authentic. Use the specific “Diffbot” group when you want a rule for this identity without changing rules for every crawler.

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