How to check site security: free tools and checklist
Site security check via 5 free tools: Sucuri SiteCheck (scans for viruses and blacklists), Google Safe Browsing (checks Google warnings), Mozilla Observatory (HTTPS configuration), Qualys SSL Labs (detailed SSL check), SecurityHeaders.com (HTTP headers check). Plus: install firewall (Cloudflare free), CMS scanner (Wordfence for WordPress). Monthly checks mandatory.
Site security check is regular hygiene like backups. 80% of hacks happen not from "genius hackers" but from automated bots scanning the internet for outdated plugins and weak passwords. Regular checks catch problems before disaster.
5 free security tools
- Sucuri SiteCheck — virus and blacklist scan.
- Google Safe Browsing — checks Google warnings.
- Mozilla Observatory — HTTPS configuration grade.
- Qualys SSL Labs — detailed SSL check.
- SecurityHeaders.com — HTTP headers grade.
Security checklist
- SSL active + HTTPS redirect + no mixed content.
- HSTS, X-Content-Type-Options, CSP headers.
- CMS + plugins updated.
- 2FA on all admin accounts.
- Strong passwords (16+ chars).
- Daily backups.
- Firewall (Cloudflare minimum).
Check frequency
- SiteCheck — weekly.
- Safe Browsing — monthly.
- Full audit — quarterly.
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