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Can AI see it

Know what AI sees. Measure what it's worth.

What is GTmetrix?

Direct Answer: GTmetrix is a free tool that analyzes a page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for pages and offers actionable recommendations on how to fix them.

Operator: GTmetrix Type: Monitoring Bot Purpose: Website monitoring

User-Agent Identification

The following user-agent strings identify GTmetrix in your live traffic data:

  • Mozilla/5.0 (X11; Linux x86_64; GTmetrix https://gtmetrix.com/) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

robots.txt Rules for GTmetrix

Respects robots.txt: No

This bot does not commit to following robots.txt

GTmetrix does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.

Need continuous verification across 500+ bots? Can AI See It automates this.

Crawl Activity Index

Relative crawl activity for GTmetrix over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.

View recent activity data (last 7 days)
Date Activity Index
Mar 28, 2026 24.5
Mar 29, 2026 5.6
Mar 30, 2026 5.5
Mar 31, 2026 5.8
Apr 1, 2026 5.1
Apr 2, 2026 5.5
Apr 3, 2026 6.2

Source: Cloudflare Radar

Why track GTmetrix traffic?

Distinguish monitoring traffic from real crawler activity. GTmetrix checks your site availability at regular intervals. Without proper identification, these requests can inflate your bot traffic metrics and distort crawl analysis.

Validate monitoring coverage. Track which pages GTmetrix checks and how frequently, so your monitoring setup matches your infrastructure requirements.

Log Verification

To verify GTmetrix traffic in your live traffic data:

  1. Search access logs for the user-agent strings listed above
  2. Check if the IP addresses match documented ranges (if provided by GTmetrix)
  3. Verify the crawl pattern matches documented behavior
  4. Use reverse DNS lookup for additional verification if available

Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.

Official Documentation

View Official GTmetrix Documentation →

Information sourced from official documentation. Content generated with AI assistance.