Safe URL Checker (Google Safe Browsing)
Check URLs against Google Safe Browsing with your own API key — phishing, malware, and unsafe page detection.
About This Tool & Technical Logic
Google Safe Browsing is the database behind Chrome, Firefox, and Safari warnings — it flags phishing, malware-hosting, deceptive, and unwanted-software pages. This tool calls its Lookup API directly with an API key you supply, so the check runs under your own quota.
The key stays in your browser (it's sent only to Google's endpoint) and can be stored locally for repeat use. A free API key comes from Google Cloud Console with Safe Browsing enabled — see the link in the tool.
POST safebrowsing.googleapis.com/v4/threatMatches:find with your key; threats[] empty = safe.
How to Use — Step by Step
- 1
Get a free API key
Google Cloud Console → enable "Safe Browsing API" → create an API key. The free tier covers thousands of checks daily.
- 2
Paste the URL(s)
One per line — before clicking links from emails, checking a new partner site, or auditing redirect destinations.
- 3
Interpret results
"No threats" means Google hasn't flagged it — powerful but not infallible: brand-new phishing campaigns lag detection by hours.
Frequently Asked Questions
It's kept in your browser's local storage and sent only to Google's endpoint over HTTPS — never to us (this page is fully static).