What is GoogleInspectionTool?

GoogleInspectionTool is a bot in the security scanners category, operated by Google.

Bot name
GoogleInspectionTool
Operator
Google
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
Google-InspectionTool
Main crawl location
United States (66%)
Signs requests (Web Bot Auth)
No

About GoogleInspectionTool

Google-InspectionTool is the crawler used by Search testing tools such as the Rich Result Test and URL inspection in Search Console. Apart from the user agent and user agent token, it mimics Googlebot.

Security scanners probe sites for vulnerabilities, certificates and exposed services. Some are research projects, some are vendors you hired. Allow your own scanners and block the rest at the WAF.

GoogleInspectionTool user agent

GoogleInspectionTool identifies itself with this user agent string:

  • Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.92 Mobile Safari/537.36 (compatible; Google-InspectionTool/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.

Where GoogleInspectionTool crawls from

Share of GoogleInspectionTool requests to sites protected by Transfon Security in the 7 days to 27 October 2026.

Countries

United States66%
India5%
The Netherlands4%
South Korea4%
Mexico4%
United Kingdom4%

Networks

Comcast Cable Communications, LLC AS792217%
Google LLC AS1516916%
HostPapa AS3635211%
Datacamp Limited AS2122384%
AT&T Enterprises, LLC AS70184%

How to block GoogleInspectionTool in robots.txt

We have not confirmed whether GoogleInspectionTool 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 GoogleInspectionTool from the whole site

User-agent: Google-InspectionTool
Disallow: /

Block GoogleInspectionTool from some folders

User-agent: Google-InspectionTool
Disallow: /private/
Disallow: /search

Allow GoogleInspectionTool only on some folders

User-agent: Google-InspectionTool
Allow: /blog/
Disallow: /

Allow GoogleInspectionTool and block other crawlers

User-agent: Google-InspectionTool
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: Google-InspectionTool group, GoogleInspectionTool ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take Google-InspectionTool from GoogleInspectionTool's user agent; check Google'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. GoogleInspectionTool may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that GoogleInspectionTool 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 GoogleInspectionTool's user agent, and a scraper using it is not bound by Google's robots.txt policy. Only checking the source network tells a real GoogleInspectionTool from a fake one.

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

Who should care about GoogleInspectionTool

Publishers

Allow GoogleInspectionTool if it is a service you use, and keep its visits out of page views and ad requests either way.

Transfon Security for publishers

Media buyers and advertisers

GoogleInspectionTool is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.

Transfon Security for advertisers

E-commerce

Allow GoogleInspectionTool only if it works for your store, and keep it away from cart and checkout.

Transfon Security for e-commerce

SaaS and APIs

If GoogleInspectionTool is a service you use, allow it on the endpoints it needs and block it elsewhere.

Transfon Security for SaaS and APIs

Block GoogleInspectionTool with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows GoogleInspectionTool 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 GoogleInspectionTool on your site

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

Frequently asked questions

What is GoogleInspectionTool?

GoogleInspectionTool is a bot in the security scanners category, operated by Google. Google-InspectionTool is the crawler used by Search testing tools such as the Rich Result Test and URL inspection in Search Console. Apart from the user agent and user agent token, it mimics Googlebot.

Does GoogleInspectionTool respect robots.txt?

We have not confirmed whether GoogleInspectionTool 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 GoogleInspectionTool?

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

Is robots.txt enough to block GoogleInspectionTool?

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

Should I block GoogleInspectionTool?

Security scanners probe sites for vulnerabilities, certificates and exposed services. Some are research projects, some are vendors you hired. Allow your own scanners and block the rest at the WAF.

Related bots

All security scanners · Full bot directory

See Which Bots Visit Your Site

Transfon Security identifies every bot in this directory in your traffic reports, flags fake search crawlers, and lets you allow, block or rate limit each bot.

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