Toolspassive check · never fetches target
URL Reputation Checker
Paste a URL to check its host and registrable domain against known threat intelligence. This tool never contacts the target site — it is a purely passive lookup.
What this checks
- Normalises the URL and validates the scheme and hostname.
- Extracts the host and registrable domain (handles two-level suffixes like co.uk).
- Compares both against threat-indicator records; matching families are flagged.
Caveats: results come from our local dataset and are one signal among many — never a final verdict on a URL.
Related Knowledge
- How to Interpret URL Reputation Results — what a clean rating and a flag actually mean.
- Phishing Email Investigation Playbook — analyse the URLs in a suspicious email.