upen-sea[.]pages[.]dev

The domain upen-sea.pages.dev was created on February 21, 2026 and is currently listed as offline. It resolves to the IP address 188.114.96.3, which belongs to AS13335 Cloudflare, Inc. and is geolocated in the United States. The domain is registered through Cloudflare, Inc. and uses the Cloudflare nameservers danica.ns.cloudflare.com and renan.ns.cloudflare.com. The TLS certificate presented is issued by Google Trust Services under the WE1 designation, indicating a valid SSL chain, but the presence of a secure certificate does not mitigate the underlying threat. HTTP requests to the site return a 403 status code, and the page title presented by the server is "Suspected phishing site | Cloudflare," confirming that the content has been flagged by Cloudflare’s anti‑phishing mechanisms. The site employs HSTS, Cloudflare’s edge services, and HTTP/3, suggesting an attempt to appear modern and trustworthy.

Threat intelligence sources classify the activity as brand impersonation targeting OpenSea, consistent with the "Scam type: Brand Impersonation" label. The Gridinsoft trust score for the domain is 0 out of 100, reflecting an extremely low reputation. The domain appears on a single security blocklist and has been blocked by the PhishDestroy service. VirusTotal analysis shows that three of ninety‑three scanning engines flagged the domain, providing additional corroboration of malicious intent.

Defenders should treat any DNS resolution of upen-sea.pages.dev as hostile and block the domain at the network perimeter, DNS resolver, and endpoint security layers. Given the Cloudflare hosting, any attempts to bypass the blocklist by re‑hosting the payload on a different Cloudflare‑assigned IP are plausible; therefore, monitoring for new subdomains under the pages.dev umbrella that resolve to Cloudflare IP ranges is advisable. Continuous re‑scanning of the domain on VirusTotal and similar platforms is recommended to capture any changes in detection status.