Suspicious Domain Checker

Free Suspicious Domain Checker — Security Scan Any Website

The internet is filled with malicious domains designed to steal credentials, spread malware, execute phishing attacks, or serve as spam relay points. Before visiting an unfamiliar link, accepting files from an unknown source, or building links to external sites, it is worth checking whether a domain has been flagged as suspicious or dangerous. This free Suspicious Domain Checker cross-references any domain against Google Safe Browsing, email spam blacklists, and DNS records to produce a quick security assessment.

Enter any domain name to run a multi-source security scan. The tool checks Google Safe Browsing API for malware and phishing flags, queries major spam blacklists, verifies DNS resolution, and reports the domain's registration age — newly registered domains are statistically higher risk for fraud and phishing.

For SEO professionals, checking the safety status of link-building targets is important because linking to blacklisted or malicious sites can trigger Google penalties. A clean link profile means outbound links only point to safe, reputable domains.

Suspicious Domain Warning Signs

Google Safe Browsing flag. The strongest negative signal — Google actively warns users with a red interstitial page when visiting flagged domains.

Spam blacklist listing. Email blacklists like Spamhaus, SURBL, and URIBL track domains used in spam campaigns. A blacklisted domain indicates past malicious use.

Very new registration. Fraudulent domains are often registered days or weeks before attacks. Domains under 30 days old deserve extra scrutiny.

DNS failure. A domain that does not resolve has no legitimate web presence — links pointing to it are broken and potentially used for parking page scams.

Related Tools

• Google Malware Checker – Check any URL against Google Safe Browsing.
• Blacklist Lookup – Check if an IP or domain is on spam blacklists.
• Domain Age Checker – Check how old a domain is.

Frequently Asked Questions