Highscore 55 · flagged Tuesday, October 20, 2026

openseo.run

Appeared in the .run zone on Tuesday, October 20, 2026; by the end of that day the census found redirects elsewhere. Full domain report

Signals, not verdicts. A domain appears here because heuristics matched its name, its infrastructure or the page it served on its first day. Where a model has looked at it, that is shown as an opinion with a confidence, not as a finding. Nothing on this page says a site is malicious. Read the evidence and decide for yourself.

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What matched

one-letter brand typo
matched: openseo≈opensea
+28
brand name behind Cloudflare
matched: cloudflare.com
+6
brand in page title, not in the name
matched: cloudflare
+20
form on a brand-styled page
matched: has_form
+18
brand name redirects elsewhere
matched: cloudflareaccess.com
+8
Registrar
—
Nameserver provider
Nameservers
aliza.ns.cloudflare.com, ram.ns.cloudflare.com
First-day state
redirects elsewhere
HTTP status
200
Page title
Sign in ・ Cloudflare Access
Has a form
yes
Brand echoed
opensea

Model opinions

Second opinionlooks benignconfidence 85%· claude-opus-5-5

The domain is gated by a genuine Cloudflare Access login on Cloudflare's own cloudflareaccess.com, titled 'Log in to OpenSEO', and it sends a one-time email code rather than collecting passwords. This is a private self-hosted app behind zero-trust auth, and 'openseo' (open + SEO) reads as a generic SEO-tool name, not a credible OpenSea typosquat.

First passlooks like phishingtarget: OpenSeaconfidence 92%· claude-haiku-4-5

The domain openseo.run is a typosquat of OpenSea (opensea.io), redirecting to a fake Cloudflare Access login page titled 'Log in to OpenSEO' with an email collection form. The attacker abuses Cloudflare's legitimate infrastructure to host a credential-harvesting page impersonating an OpenSea login, exploiting the brand typo and Cloudflare's trusted appearance to deceive visitors into submitting email addresses.

A model looked at the screenshot and page text and wrote what it thought. It can be wrong, and it is not a finding.

What the page looked like on Tuesday, October 20, 2026

Screenshot of openseo.run taken by the zone census on 2026-10-20

Same data as JSON: /api/zone/domain/openseo.run. This page is not indexed by search engines and does not link to the site it describes.