The idea
What it brings together.
A score is more useful when you can see what was checked. Website Security Scanner brings findings, assessment coverage and practical recommendations into a Chrome popup, with local reports you can revisit, compare and share.
Features
Assess the page in front of you
Run selected checks for HTTPS, security headers, mixed content and potentially unsafe form submissions. Optional services add TLS certificate, domain reputation, Safe Browsing and SPF/DMARC checks.
Read the score with its coverage
The 0-100 assessment score reflects completed checks. Coverage shows how much was assessed, while unavailable or skipped checks stay distinct from passes. Neither a score nor domain reputation is a guarantee of safety or a vulnerability audit.
Follow the evidence to a next step
Open individual findings, review supporting details and see recommendations ordered by priority, including weak header values and mixed-content or form issues.
Keep the reports that matter
Save up to 50 reports locally, search by hostname, reopen previous results and delete individual reports or clear all scan data.
Compare and share
Compare matching assessments to review changes in check results and scores. Export JSON or a standalone HTML report for review outside the extension.
Stay in control of the scan
Follow progress, cancel a scan and reopen the popup while it runs. Reuse recent matching results or choose Scan fresh, select checks individually and enable an optional toolbar score badge.
Choose your external lookups
External services are off by default. When enabled, providers receive the hostname or site origin, without the page path, query or fragment. Safe Browsing and VirusTotal use your own eligible API keys; directory probing needs separate opt-in and authorisation.
Keep browser data close
Settings, API keys and optional report history stay in your browser. The extension has no advertising, analytics or developer-operated collection server. Page checks contact the site itself; enabled external checks contact their selected providers.