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ProjectShield Url Check

Usually allow

ProjectShield Url Check is a monitoring bot from Google used for security scanning, malware checks, vulnerability assessment, certificate review.

User-Agent

ProjectShield-UrlCheck

User-agent strings are identity signals, not proof of identity. Use Edge to compare the user-agent with IP, datacenter, behavior, path, and request history.

Verification and Detection

Verification method: Verify ProjectShield Url Check by matching `ProjectShield-UrlCheck` to Google evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.

ProjectShield Url Check traffic is primarily detected by the `ProjectShield-UrlCheck` user-agent pattern; a representative HTTP user-agent is `Mozilla/5.0 (compatible; ProjectShield-UrlCheck; +http://g.co/projectshield)`. Compare source IPs, reverse DNS, request paths, and crawl cadence with Google infrastructure before trusting the traffic.

Handling Guidance

This bot is usually safe to allow when the request source is verified and the behavior matches your site policy.

ProjectShield Url Check is used for security scanning, malware checks, vulnerability assessment, certificate review, and site-safety analysis.

Record Details

Type
security
Operator
Google
Family
Google
Kind
Monitor
Purpose
Security
Identity
Verified Bot
Detection confidence
High
Spoofing risk
ProjectShield Url Check Has Medium Spoofing Risk Because The User Agent Can Be Copied, Even When The Bot Has Strong Source Or Documentation Support.
Status
Active
Respects robots.txt
Yes
Last verified
2026 06 23

Robots.txt Snippet

User-agent: ProjectShield-UrlCheck
Disallow: /

Traffic Matching

Live IP verification, reverse DNS, ASN and datacenter correlation, request history, connected-domain matches, behavioral context, and rule creation are kept inside Botcrawl Edge.

Open full record in Edge

Evidence and Sources