coinbase-io-extes[.]pages[.]dev

Analysis indicates that the domain coinbase-io-extes.pages.dev was registered on February 21 2026 through Cloudflare, Inc. and is hosted on Cloudflare’s network (AS13335, United States). The site resolves to the IPv6 address 2606:4700:310c::ac42:2f34 and uses Cloudflare‑provided TLS issued by Google Trust Services under the WE1 certificate. HTTP headers show HSTS enforcement and HTTP/3 support, confirming the presence of modern security features typical of Cloudflare‑protected sites. The page title returned by the server is “Suspected phishing site | Cloudflare” and the HTTP response code is 403, indicating that the content is currently inaccessible.

Google Safe Browsing has flagged the domain for social engineering, and VirusTotal reports that 14 of 93 scanned security vendors label the domain as malicious. The site appears on one external blocklist and has been explicitly blocked by PhishDestroy. Gridinsoft assigns a trust score of 0 out of 100, reinforcing the malicious assessment. The domain is identified as a crypto‑related scam impersonating the Coinbase brand, consistent with the “Crypto Scam” classification in the intelligence.

At present the exact phishing page content cannot be examined because the server returns 403, so visual indicators remain unknown. Defenders should add the domain and its IPv6 address to network‑level deny lists, enforce DNS sink‑hole rules for the associated Cloudflare nameservers (journey.ns.cloudflare.com, nile.ns.cloudflare.com), and monitor for any re‑registration attempts. Although the site is presently offline, the infrastructure—Cloudflare hosting, Google‑issued TLS, and the observed blocklist entries—should be treated as high‑risk, and any inbound traffic to the domain should be dropped or redirected to a warning page. Continuous observation of Cloudflare‑registered subdomains that mimic Coinbase naming patterns is advised, as threat actors frequently recycle similar naming schemes.