huddle01[.]studio

Analysis of the domain huddle01.studio indicates an active brand‑impersonation campaign targeting Discord users. The site was registered on 21 February 2026 through NiceNIC International Group Co., Limited and resolves to the Cloudflare‑owned address 66.33.60.66, ASN 13335, located in the United States. The hosting infrastructure employs Cloudflare services and advertises HTTP/3 support, but the web server currently returns HTTP 521, suggesting the origin is unavailable or refusing connections. The page title returned by the server is "Home – Huddle01's Documentation," which does not directly reference Discord, and no additional content has been publicly disclosed. The SSL certificate is issued by Google Trust Services under the WE1 label, confirming a valid TLS handshake despite the HTTP error.

Reputation signals are strongly negative: Gridinsoft assigns a trust score of 0 / 100, and three independent blocklists have already listed the domain. Five of ninety‑three VirusTotal scanners flag the domain as malicious, reinforcing the suspicion of abuse. The domain appears in one AlienVault OTX pulse, further corroborating its association with threat activity. Defensive products PhishDestroy, MetaMask, and SEAL have all blocked access to the domain, indicating that it is recognized by multiple security platforms.

Given the convergence of these indicators—low trust score, multiple blocklist entries, partial VirusTotal detections, and alignment with a known brand‑impersonation pattern—security teams should treat huddle01.studio as a high‑risk indicator. Recommended actions include adding the domain to outbound deny lists, monitoring DNS queries for the associated Cloudflare nameservers (arnold.ns.cloudflare.com and audrey.ns.cloudflare.com), and enforcing URL filtering policies that prevent users from reaching the site. Continuous re‑evaluation is advised, as the HTTP 521 response may change if the underlying phishing infrastructure becomes active.