us-coin-base-login[.]pages[.]dev

The domain us-coin-base-login.pages.dev is flagged as a brand‑impersonation infrastructure targeting Coinbase users. The site was registered on February 21, 2026 and resolves to the IP address 172.66.44.101, which belongs to AS13335 Cloudflare, Inc. in the United States. Registration is handled through Cloudflare, Inc., and the authoritative nameservers are sue.ns.cloudflare.com and alfred.ns.cloudflare.com, confirming that the domain is hosted entirely within the Cloudflare network. The TLS certificate presented is issued by Google Trust Services under the WE1 designation, indicating a legitimate‑looking HTTPS endpoint that nevertheless does not guarantee benign intent. When accessed, the HTTP response returns a 403 status code and the page title is "Suspected phishing site | Cloudflare," a generic warning page automatically generated by Cloudflare for blocked content. Technological fingerprints include HSTS enforcement, HTTP/3 support, and the presence of Cloudflare’s edge services, all consistent with the hosting provider’s standard stack.

Detection telemetry shows that 13 of 93 security vendors on VirusTotal flagged the domain, and the Gridinsoft trust score is 0 / 100, reflecting a very low confidence in safety. The domain appears on a single security blocklist and is specifically blocked by PhishDestroy, confirming that at least one anti‑phishing service has taken action against it. The current operational status is offline, indicating that the site has been taken down or is otherwise inaccessible at the time of analysis.

Defenders should continue to block the domain at network perimeter devices, update URL filtering lists with the exact domain, and monitor for any future re‑hosting attempts that reuse the same sub‑domain pattern. Additional scrutiny of traffic to Cloudflare‑hosted IP ranges, especially 172.66.44.101, may help catch related infrastructure.