0pensea-dg5[.]pages[.]dev

The domain 0pensea-dg5.pages.dev was registered on February 21, 2026 and is currently listed as offline. DNS resolution points to the IP address 172.66.47.120, which belongs to AS13335 Cloudflare, Inc. and is geolocated in the United States. The domain is hosted behind Cloudflare services, as indicated by the presence of HSTS, HTTP/3, and the Cloudflare nameservers miles.ns.cloudflare.com and zita.ns.cloudflare.com. An SSL certificate issued by Google Trust Services under the identifier WE1 is active for the domain, confirming that TLS termination is handled by Cloudflare.

When accessed, the HTTP response returned a 403 status code and the page title displayed "Suspected phishing site | Cloudflare," suggesting that the content has been flagged by Cloudflare's own detection mechanisms. VirusTotal analysis shows that 10 of 93 scanning engines flagged the domain, and the domain appears on one external security blocklist. Independent blocklist PhishDestroy also reports the domain as blocked. The Gridinsoft trust score is 0 out of 100, indicating a high confidence of malicious intent.

The observed behavior aligns with a brand impersonation campaign targeting OpenSea users, as the threat type is explicitly identified as Brand Impersonation and the brand target is listed as OpenSea. While the exact payload or credential‑harvesting page has not been captured, the combination of a Cloudflare‑hosted site with a forced 403 response, a low trust score, multiple vendor detections, and blocklist entries provides sufficient evidence for security teams to treat the domain as malicious. Defenders should ensure that any outbound connections to 172.66.47.120 are blocked at the firewall or proxy level, update URL filtering policies to include 0pensea-dg5.pages.dev, and monitor for related indicators such as the associated Cloudflare nameservers and the Google Trust Services certificate.