content-coinbaseextensio[.]gitbook[.]io

content-coinbaseextensio.gitbook.io is a subdomain of gitbook.io. PhishDestroy first observed the hostname on Feb 26, 2026. The hostname explicitly references Coinbase; stored content metadata identifies the same apparent target. The captured page title is “GitBook”. Stored page analysis classifies the content as crypto scam. Current evidence score: 100/100 (critical).

Positive findings are stored from 3 sources: VirusTotal, Google Safe Browsing, and DNS security resolvers. VirusTotal recorded 12 detections among 91 engines: ChainPatrol, alphaMountain.ai, BitDefender, Chong Lua Dao, CyRadar, ESET, Fortinet, G-Data, Lionic, Sophos, VIPRE, Webroot on Jul 26, 2026 at 03:36 UTC. Google Safe Browsing flagged the domain: Social Engineering on Mar 2, 2026 at 20:53 UTC. DNS security checks returned 3 blocking results across 14 tested policies: Brand Base, Brand Coinbase, Quad9 Secure; no observation timestamp was retained. Non-positive and contextual checks: The separate external-blocklist snapshot contained no matches on Aug 8, 2026 at 02:20 UTC. URLScan completed without a malicious verdict (score 0) on Jul 29, 2026 at 02:50 UTC.

HTTP 307 was recorded on Aug 7, 2026 at 22:01 UTC. Registration records for the registrable domain gitbook.io list Cloudflare, Inc. as the registrar and Feb 21, 2026 as the creation date. Registration preceded first observation by 5 days. At collection time, the hostname resolved to 172.64.147.209 on AS13335 (CLOUDFLARENET, US). The IP and ASN identify shared Cloudflare edge infrastructure; the origin server is not established by this address. DOM analysis on Jul 9, 2026 at 02:22 UTC returned 100/100. The evidence archive retains 2 visual captures from PhishDestroy and URLScan. TLS metadata lists Google Trust Services / WE1 as the certificate issuer; checked Mar 15, 2026 at 08:07 UTC.

The content indicators and 3 positive source findings support the current Coinbase-themed crypto scam classification.