What is Google-Trust-Services?

Google-Trust-Services is a certificate authority bot that helps build a safer Internet by providing transparent, trusted, and reliable TLS certificates. It crawls websites to verify certificate authenticity and manage secure connections for Google services and users. You can set up Agent Analytics to see when Google-Trust-Services visits your website.

Category

Security Scanner
Scans websites for security vulnerabilities, threats, and configuration weaknesses

Overview

Do you operate this agent? Contact us to suggest an update.
Example User Agent Mozilla/5.0 (compatible; Google-Trust-Services/2.0; http://pki.goog/)
Operated By Google
Source Official Website
Triggered By Scheduled or requested scan
Used for AI Model Training Not expected
Affects AI Chat & Search Visibility Not directly
Expected To Follow Robots.txt Yes

Why Is Google-Trust-Services Visiting My Website?

Google-Trust-Services is scanning your site for vulnerabilities, either as part of an internet-wide sweep or because someone requested an assessment of your domain. Recurring visits often indicate that a monitoring service has added your site to its checks.

Should I Block Google-Trust-Services?

Usually not, unless you already run your own security scans and want cleaner logs. Google-Trust-Services checks for exposed vulnerabilities, and some services report their findings to site owners at no cost. For context, 7% of the top websites we track currently have robots.txt rules for Google-Trust-Services.

How Do I Block Google-Trust-Services Using Robots.txt?

Add this rule to your robots.txt file to block Google-Trust-Services from accessing your website, or use Automatic Robots.txt to block all security scanners at once. You can customize which pages are blocked by swapping out / for a different path.

User-agent: Google-Trust-Services # https://knownagents.com/agents/google-trust-services
Disallow: /

Insights for Google-Trust-Services

As of October 30, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.

Robots.txt Compliance

Not enough activity

Country of Origin

United States
Google-Trust-Services traffic often comes from the United States

Robots.txt Blocked Percentage

7%
7% of top websites are blocking Google-Trust-Services
Learn How →

Top Visited Website Categories

Not enough activity

Robots.txt Blocking Trend

7% of top websites block Google-Trust-Services in their robots.txts.

Google-Trust-Services Traffic

Not enough activity
Explore the Data →

Frequently Asked Questions

What Traffic Patterns Should I Expect From Google-Trust-Services?

Google-Trust-Services's cadence depends on how the scan is configured. Continuous monitoring may run daily or hourly, while a one-time or internet-wide scan may sweep once and disappear.

Does Google-Trust-Services Follow Robots.txt Rules?

Google-Trust-Services is expected to follow robots.txt rules, so a disallow rule is the appropriate first step if you want to block it. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether Google-Trust-Services respects it.

Is Google-Trust-Services Used for AI Model Training?

Not ordinarily. Google-Trust-Services is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.

Does Blocking Google-Trust-Services Affect AI Search or Citations?

Not directly. Google-Trust-Services's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.

Does Google-Trust-Services Access Private Content?

It deliberately looks for exposed private content. Google-Trust-Services tests login pages, admin panels, and API endpoints for vulnerabilities. Probing does not mean it gained access, but you should expect requests to sensitive paths in your logs.

How Can I Verify a Request From Google-Trust-Services?

Agent Analytics tracks Google-Trust-Services visits in real time. You can also check your server logs for requests whose user-agent string contains "Google-Trust-Services". Look for bursts of requests to uncommon paths that ordinary visitors rarely access. Because Google-Trust-Services does not publish a verification method, any client can claim its identity and a log match is only a clue.

How Is Google-Trust-Services Different From Other Google Agents?

Google operates separate agents for different purposes, so each agent should be evaluated and controlled independently.

  • Google-Agent: Google-Agent is used by agents hosted on Google infrastructure to navigate the web and perform actions upon user request.
  • GoogleAgent-Mariner: GoogleAgent-Mariner is an AI agent created by Google that can use a web browser. It can intelligently navigate and interact with websites to complete multi-step tasks on …
  • Gemini-Deep-Research: Gemini-Deep-Research is the agent responsible for collecting and scanning resources used in Google Gemini's Deep Research feature, which acts as a personal research assis…
  • Google-NotebookLM: Google-NotebookLM is an AI-powered research and note-taking assistant that helps users synthesize information from uploaded sources like documents, transcripts, or web co…
  • GoogleAgent-URLContext: GoogleAgent-URLContext is a web fetcher operated by Google that retrieves web content on behalf of Gemini API users. When a developer provides a URL as context in a Gemin…