What is CitibotSiteCrawler?

CitibotSiteCrawler is a bot in the AI crawlers category, operated by Citibot.

Bot name
CitibotSiteCrawler
Operator
Citibot
Category
AI Crawlers
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
CitibotSiteCrawler
Signs requests (Web Bot Auth)
No

About CitibotSiteCrawler

CitibotSiteCrawler collects public data from government websites to power Citibot’s AI civic engagement tools.

AI crawlers collect web pages in bulk to build training data for large language models and other AI systems. They take content without sending visitors back. Most publishers block them in robots.txt or at the WAF unless they have a licensing deal with the operator.

CitibotSiteCrawler user agent

CitibotSiteCrawler identifies itself with this user agent string:

  • CitibotSiteCrawler/1.0

Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.

How to block CitibotSiteCrawler in robots.txt

We have not confirmed whether CitibotSiteCrawler follows robots.txt. Add a rule, then check your logs to see that it stopped. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block CitibotSiteCrawler from the whole site

User-agent: CitibotSiteCrawler
Disallow: /

Block CitibotSiteCrawler from some folders

User-agent: CitibotSiteCrawler
Disallow: /private/
Disallow: /search

Allow CitibotSiteCrawler only on some folders

User-agent: CitibotSiteCrawler
Allow: /blog/
Disallow: /

Allow CitibotSiteCrawler and block other crawlers

User-agent: CitibotSiteCrawler
Allow: /

User-agent: *
Disallow: /

Things to know

  • Each host needs its own file. Rules on www.example.com do not apply to shop.example.com.
  • A crawler obeys only the most specific group that names it. Once you add a User-agent: CitibotSiteCrawler group, CitibotSiteCrawler ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take CitibotSiteCrawler from CitibotSiteCrawler's user agent; check Citibot's own documentation if it publishes a different robots.txt name.
  • Crawlers cache robots.txt, so changes can take up to a day to apply. Disallow stops crawling but does not remove pages already collected or indexed.

Limits of robots.txt

  1. CitibotSiteCrawler may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that CitibotSiteCrawler follows it. Check your logs after adding a rule.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send CitibotSiteCrawler's user agent, and a scraper using it is not bound by Citibot's robots.txt policy. Only checking the source network tells a real CitibotSiteCrawler from a fake one.

Treat robots.txt as a statement of your policy, and enforce it where requests arrive.

Who should care about CitibotSiteCrawler

Publishers

CitibotSiteCrawler takes articles for AI training without sending readers back, and its page loads count as invalid traffic if your ad tags fire. Decide whether to license, limit or block it, and keep it out of ad requests.

Transfon Security for publishers

Media buyers and advertisers

Visits from CitibotSiteCrawler to your landing pages are not people. Keep them out of conversion, retargeting and audience data so you do not pay to reach a crawler.

Transfon Security for advertisers

E-commerce

CitibotSiteCrawler can copy product descriptions, prices and reviews in bulk. Allow it on pages you want AI models to know about and block it on search, cart and account pages.

Transfon Security for e-commerce

SaaS and APIs

CitibotSiteCrawler can fetch documentation and public app pages at scale. Rate limit it so it does not slow the product for paying users.

Transfon Security for SaaS and APIs

Block CitibotSiteCrawler with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows CitibotSiteCrawler by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.

Transfon Security

Control CitibotSiteCrawler on your site

  • See every CitibotSiteCrawler visit and the pages it reads
  • Spot bots that fake trusted crawler names
  • Block, allow or rate limit CitibotSiteCrawler with one rule
  • Works with or without robots.txt support

Frequently asked questions

What is CitibotSiteCrawler?

CitibotSiteCrawler is a bot in the AI crawlers category, operated by Citibot. CitibotSiteCrawler collects public data from government websites to power Citibot’s AI civic engagement tools.

Does CitibotSiteCrawler respect robots.txt?

We have not confirmed whether CitibotSiteCrawler follows robots.txt. Add a robots.txt rule, then check your logs to see that it stopped, and block it by user agent if it did not.

How do I block CitibotSiteCrawler?

Add "User-agent: CitibotSiteCrawler" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "CitibotSiteCrawler" at your WAF. In Transfon Security that is one User Agent block rule.

Is robots.txt enough to block CitibotSiteCrawler?

No. robots.txt is voluntary, so CitibotSiteCrawler may not follow it, and anyone can send CitibotSiteCrawler's user agent, so a fake CitibotSiteCrawler ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.

Should I block CitibotSiteCrawler?

AI crawlers collect web pages in bulk to build training data for large language models and other AI systems. They take content without sending visitors back. Most publishers block them in robots.txt or at the WAF unless they have a licensing deal with the operator.

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