en-extention-coinbse[.]pages[.]dev

This domain, en-extention-coinbse.pages.dev, was observed serving a credential-phishing page that Cloudflare has classified with the title “Suspected phishing site | Cloudflare”. The site was registered on 21 February 2026 through Cloudflare, Inc., and its authoritative nameservers are grant.ns.cloudflare.com and rayne.ns.cloudflare.com. DNS resolution points to IP 172.66.46.224, which belongs to AS13335 owned by Cloudflare and is geolocated in the United States. The HTTPS service presents a certificate issued by Google Trust Services under the WE1 designation and enforces HTTP Strict Transport Security; traffic is delivered via HTTP/3, confirming the use of modern Cloudflare edge infrastructure. An HTTP 403 response was returned when the page was accessed, indicating that the content is presently blocked or taken offline.

Security telemetry shows that 14 of 93 vendors on VirusTotal flagged the domain, Google Safe Browsing lists it for social-engineering, and PhishDestroy has added it to its blocklist. The domain also appears on a single external security blocklist and received a Gridinsoft trust score of 0/100, reinforcing the malicious assessment. The overall risk rating is high, and the current operational status is offline. Analysis indicates that the domain was likely used to harvest login credentials, but no additional payload or landing-page details have been disclosed.

Because the hosting provider is Cloudflare, takedown or sinkhole actions must be coordinated through Cloudflare’s abuse channels. Defenders should block DNS resolution to 172.66.46.224, add the domain to URL filtering rules, and monitor for any future sub-domains under the pages.dev namespace that exhibit similar characteristics. Continuous re-scanning with VirusTotal and other sandbox services is recommended to capture any evolving tactics. Until the site is confirmed permanently taken down, security teams should treat any traffic to this domain as malicious.