crypto404.com
Category: Information Technology, Suspicious
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Description of crypto404.com
crypto404.com appears to present itself as a cryptocurrency security utility focused on blockchain address screening and wallet-risk analysis. Based on the page title, metadata, and visible navigation, the site offers tools such as a scanner, transfer check, explorer, analytics, reporting, and API access. The homepage messaging suggests it is intended to help users review wallet addresses for suspicious activity, scam exposure, and sanctions-related concerns across multiple blockchains.
The screenshot shows a polished web application interface branded as "Crypto404 - Address Security Scanner" and hosted on modern web infrastructure. However, the page also prominently includes fields for entering a private key or seed phrase, which is highly sensitive information that legitimate security tools generally should not request through a public website interface. The domain itself is independently branded as Crypto404 rather than clearly identifying a widely recognized operator, and the available scan data does not provide verified ownership details beyond registrar and hosting information.
Safety Assessment for crypto404.com
Several security signals indicate elevated risk at the time of this scan. The domain was flagged by 6 out of 91 security engines, and multiple web-classification sources associated it with phishing, fraud, suspicious activity, or related concerns. In addition, one blacklist database listed the domain, while most major blacklist and safe-browsing sources were otherwise clean. The malware scan did not identify confirmed malicious files, but it did repeatedly apply a generic suspicious heuristic to the site and many internal URLs, which on its own is a lower-confidence signal.
A more significant concern is the site’s visible behavior and branding context. The domain closely resembles crypto.com in plain appearance and may be a look-alike intended to benefit from user confusion. The homepage also invites users to enter a private key or seed phrase into a web form, which is an unusually sensitive request and may expose visitors to credential or wallet-compromise risks if misused. Although the domain is not newly registered and uses standard HTTPS, those factors do not outweigh the phishing-related classifications and the look-alike pattern.
Based on these findings, this website may pose potential risks to visitors.
Technical Description
The domain has been registered for several years, uses a valid Let's Encrypt SSL certificate, and has DNSSEC enabled, which are generally positive infrastructure signals. DNS points to Cloudflare-managed nameservers, and the site is hosted on Vercel infrastructure in the United States. The page appears to be built with a modern JavaScript framework, with numerous static assets served from a Next.js-style path structure.
From a security-review perspective, the main concerns are not basic transport security but site purpose and behavior. The scan data shows multiple phishing/suspicious classifications from security engines, one blacklist listing, and extensive heuristic flagging of internal resources and links. The interface also appears to solicit highly sensitive wallet recovery information, which materially increases the potential risk profile even though no confirmed malware payloads were detected at the time of this scan.
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