coin-base-exten-sion[.]pages[.]dev

Analysis conducted on July 23, 2026 identifies coin-base-exten-sion.pages.dev as a high‑risk brand impersonation site targeting Coinbase. The domain was registered on February 21, 2026 through Cloudflare, Inc., and resolves to IP 172.66.46.217, which belongs to AS13335 Cloudflare, Inc. in the United States. The host presents a Google Trust Services / WE1 SSL certificate, enforces HSTS, and serves content over HTTP/3 via Cloudflare’s edge network. An HTTP request returns a 403 status code, and the page title returned by the server is “Suspected phishing site | Cloudflare”.

The site is currently offline, and its status was confirmed by PhishDestroy, which also blocked it. Reputation metrics are extremely low, with a Gridinsoft trust score of 0 out of 100. Google Safe Browsing classifies the URL as a social‑engineering threat, and the domain appears on one security blocklist. VirusTotal analysis shows that 14 of 93 scanning engines flagged the domain, reinforcing the malicious assessment.

The content is categorized as a crypto scam and explicitly impersonates the Coinbase brand. Defenders should continue to block the domain at perimeter and DNS layers, monitor the associated IP address for any re‑use, and add the domain to internal blacklist feeds. Because the site is already taken offline, immediate remediation focuses on preventing future re‑registration or copycat deployments that might reuse the same infrastructure. Ongoing vigilance is recommended, particularly for users receiving unsolicited communications referencing Coinbase, to mitigate potential credential‑ harvesting attempts.