What is BugsNag?
Bugsnag is an error tracking and performance monitoring service that automatically detects application crashes, exceptions, and performance issues, providing developers with detailed diagnostics to improve app stability. You can set up Agent Analytics to see when BugsNag visits your website.
Category
| Example User Agent | Bugsnag script fetcher (support@bugsnag.com) |
| Operated By | Bugsnag |
| Source | Official Website |
| Triggered By | Scheduled or manual configuration |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | No |
Why Is BugsNag Visiting My Website?
Someone, most likely on your own team, configured BugsNag to check your site. Uptime monitors, performance testers, and audit tools visit only the sites or endpoints they are told to watch.
Should I Block BugsNag?
Only if no one on your team relies on it. BugsNag may support uptime monitoring, performance tests, or audits. Blocking it without checking first can silently disrupt those workflows. For context, 7% of the top websites we track currently have robots.txt rules for BugsNag.
Insights for BugsNag
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
Country of Origin
Robots.txt Blocked Percentage
BugsNag Traffic
Frequently Asked Questions
What Traffic Patterns Should I Expect From BugsNag?
BugsNag's traffic often follows fixed intervals like a cron job. Activity may consist of short recurring checks or occasional intensive bursts, but it usually remains limited to a specific set of pages or endpoints.
Does BugsNag Follow Robots.txt Rules?
No. BugsNag is not expected to follow robots.txt rules, so a disallow rule only communicates your preference. Enforce the block with firewall or server rules, then use Agent Analytics to verify that its requests stop.
Is BugsNag Used for AI Model Training?
Not ordinarily. BugsNag is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking BugsNag Affect AI Search or Citations?
Not directly. BugsNag's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.
Does BugsNag Access Private Content?
Only when configured with access. A team may grant BugsNag credentials to monitor staging sites or private health endpoints. Without those credentials, it sees only public pages.
How Can I Verify a Request From BugsNag?
Agent Analytics tracks BugsNag visits in real time. You can also check your server logs for requests whose user-agent string contains "BugsNag". Look for repeated checks of the same pages or endpoints at regular intervals. Because BugsNag does not publish a verification method, any client can claim its identity and a log match is only a clue.
How Is BugsNag Different From Other Bugsnag Agents?
Bugsnag operates separate agents for different purposes, so each agent should be evaluated and controlled independently.
- Bugsnag script fetcher: Bugsnag script fetcher is a bot operated by Bugsnag, an error monitoring and reporting platform for software applications. This bot fetches JavaScript source files and so…