opensee-io-en[.]pages[.]dev

Analysis of opensee-io-en.pages.dev confirms it as a wallet seed phishing site targeting users of an NFT marketplace. The domain, registered on February 21, 2026, through Cloudflare, Inc., was taken offline following detection. Infrastructure analysis reveals Cloudflare hosting (AS13335) with nameservers aron.ns.cloudflare.com and walt.ns.cloudflare.com, resolving to 172.66.47.78 in the US. The page title, 'OpenSea Login: Secure Access to Your NFT Marketplace,' explicitly indicates an attempt to impersonate a legitimate NFT platform, though the targeted brand in threat intelligence reports is listed as 'across,' suggesting possible broader or evolving impersonation tactics.

Technical indicators include an HTTP 403 status, HSTS and HTTP/3 support, and a Google Trust Services SSL certificate (WE1). Google Safe Browsing flags the domain for social engineering, and it appears on one security blocklist (PhishDestroy). Gridinsoft assigns a trust score of 0/100, reinforcing its malicious classification. VirusTotal shows one detection from 93 security vendors, though this limited visibility does not diminish the confirmed phishing classification.

Defenders should treat this domain as a confirmed threat for wallet credential harvesting. The combination of Cloudflare hosting, a deceptive page title, and blocklist presence aligns with known phishing infrastructure. While the exact phishing kit or payload is not analyzed, the domain’s offline status suggests mitigation, though monitoring for re-emergence under similar patterns is advised. No visual or behavioral analysis of the site is available, and the report relies solely on observable infrastructure and detection data.