en-sso-uphold-io[.]pages[.]dev

On July 23, 2026 analysts observed that the domain en-sso-uphold-io.pages.dev was registered on February 21, 2026 through Cloudflare, Inc. The authoritative nameservers are syeef.ns.cloudflare.com and oaklyn.ns.cloudflare.com, indicating that the domain is hosted on Cloudflare’s edge network. DNS resolution points to IP address 188.114.96.3, which belongs to AS13335 Cloudflare, Inc. and is geolocated in the United States. The site served an HTTPS certificate issued by Google Trust Services under the WE1 label, and Cloudflare reported the presence of HSTS and HTTP/3 support. An HTTP request returned a 403 status code and the page title “Suspected phishing site | Cloudflare”, confirming that the content has been taken offline by the provider. Security telemetry shows that ten of ninety‑three VirusTotal scanners flagged the domain, and it is listed on a single external blocklist.

The phishing‑related URL was also added to the PhishDestroy blocklist. Reputation services assign extremely low scores: Scamadviser rates the domain 1 out of 100, and Gridinsoft reports a trust score of 0 out of 100. The observed scam type is credential phishing, but no specific brand or login portal was identified in the available metadata. The available evidence establishes a high confidence that the domain was used for credential harvesting and has already been mitigated by Cloudflare and third‑party blocklists.

Uncertainty remains regarding the exact phishing lure, the payload delivered to victims, and whether any compromised credentials have been exfiltrated. Defenders should continue to block the domain at network perimeter, update intrusion detection signatures with the observed IP and host header, and monitor for any related C2 traffic or credential reuse. Additional investigation of log sources for connections to 188.114.96.3 during the active window may reveal victim interaction.