Overview
webpagetest is a monitoring bot used for uptime monitoring, synthetic checks, performance measurement, accessibility review, and site-health testing.
Its primary user-agent pattern is monitor/webpagetest; related patterns include Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36 monitor/webpagetest PTST/190827.180809; a representative HTTP user-agent is Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0 monitor/webpagetest PTST/190827.180809 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36 monitor/webpagetest PTST/190827.180809.
webpagetest is Unverified at the identity-evidence level. The listed identity remains useful for detection, but this record does not currently contain authoritative evidence sufficient to authenticate the identity claim.
Robots.txt behavior is not currently confirmed.
webpagetest can usually be allowed after confirming the source and monitoring request volume.
Identity
- User-Agent Pattern
-
monitor/webpagetest - Aliases
- Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36 monitor/webpagetest PTST/190827.180809
- HTTP Agent Examples
-
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0 monitor/webpagetest PTST/190827.180809 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36 monitor/webpagetest PTST/190827.180809 - Robots Token
- monitor/webpagetest
- Identity Type
- Observed
- Evidence Method
- Treat `monitor/webpagetest` as an identity signal only. Confirm it with current operator documentation, cryptographic verification, forward-confirmed reverse DNS, source-network ownership, or other authoritative evidence before trusting the claimed identity.
Classification
- Type
- Monitoring
- Kind
- Monitor
- Family
- WebPageTest
- Purpose
- Monitoring
Behavior and handling
- Common Use
- webpagetest is used for uptime monitoring, synthetic checks, performance measurement, accessibility review, and site-health testing.
- Detection Notes
- webpagetest traffic is primarily detected by the `monitor/webpagetest` user-agent pattern; related patterns include `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36 monitor/webpagetest PTST/190827.180809`. Compare source IPs, reverse DNS, request paths, and crawl cadence before trusting the traffic.
- Respects robots.txt
- Unknown
- Spoofing Risk
- webpagetest has medium spoofing risk because user-agent strings can be copied; pair the match with DNS, IP, behavior, or operator evidence.
- Risk
- Safe
- Recommended Handling
- Do not block
Rules and controls
- Robots.txt Snippet
-
# robots.txt behavior is unconfirmed. Do not rely on this rule without verification.
Relationships
- Operator
- WebPageTest Checked 2026-08-07
Relationships without an Evidence link are normalized from the canonical directory record. They should not be interpreted as independent proof of physical presence or request origin.