Overview
LinkCheck is a monitoring bot from Siteimprove used for uptime monitoring, synthetic checks, performance measurement, accessibility review, and site-health testing.
Its primary user-agent pattern is LinkCheck by Siteimprove; related patterns include Siteimprove LinkCheck; a representative HTTP user-agent is Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) LinkCheck by Siteimprove.
LinkCheck is Verified from current authoritative identity documentation reviewed on 2026-08-07. The identity type is Official Documented.
Robots.txt behavior is not currently confirmed.
LinkCheck should be reviewed against site policy, source evidence, crawl rate, and requested paths before a permanent allow or block rule is created.
Identity
- User-Agent
LinkCheck by Siteimprove- Aliases
- Siteimprove LinkCheck
- HTTP Agent Examples
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) LinkCheck by Siteimprove- Robots.txt Token
LinkCheck by Siteimprove- Identity Type
- Official Documented
- Evidence Method
- Match `LinkCheck by Siteimprove` to the current operator documentation and corroborate the request with operator-controlled verification signals where available; User-Agent strings alone can be spoofed.
Classification
- Type
- Monitoring
- Kind
- Monitor
- Family
- Siteimprove
- Purpose
- monitoring
Behavior and handling
- Common Use
- LinkCheck is used for uptime monitoring, synthetic checks, performance measurement, accessibility review, and site-health testing.
- Detection Notes
- LinkCheck traffic is primarily detected by the `LinkCheck by Siteimprove` user-agent pattern; related patterns include `Siteimprove LinkCheck`; a representative HTTP user-agent is `Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) LinkCheck by Siteimprove`. Compare source IPs, reverse DNS, request paths, and crawl cadence with Siteimprove infrastructure before trusting the traffic.
- Respects robots.txt
- Unknown
- Spoofing Risk
- LinkCheck has medium spoofing risk because user-agent strings can be copied; pair the match with DNS, IP, behavior, or operator evidence.
- Risk
- Neutral
- Recommended Handling
- Depends
Rules and controls
- Robots.txt Snippet
# robots.txt behavior is unconfirmed. Do not rely on this rule without verification.