Website Security Scanner

Free instant analysis of any domain: SSL certificates, security headers, DNS health, technology stack, and overall security score.

Checks SSL, headers, DNS, tech stack, and performance in seconds.

What We Check & Why It Matters

SSL / TLS Certificate

Encrypts data between your visitors and your server. Without it, passwords and credit cards travel in plain text. We check validity, strength, and expiration.

Security Headers

HTTP response headers that tell browsers how to behave. CSP stops XSS attacks. HSTS prevents downgrade attacks. Missing headers = easy targets.

DNS Health

SPF and DMARC records prevent email spoofing. Without them, attackers can send fake emails that appear to come from your domain. DNSSEC prevents DNS hijacking.

Technology Stack

Knowing what software runs your site matters for security. Outdated WordPress plugins, old PHP versions, or exposed server info can be exploited by attackers.

Performance

Slow sites lose visitors. We measure response time, redirects, and page size. Every extra redirect is a security risk and a speed penalty.

Overall Score

A composite score from 0-100. A = excellent, B = good, C = fair, D = poor, F = critical. One failing grade can drag your overall score down significantly.

Understanding Your Score

A
Excellent
90-100. Strong security posture. Minor improvements possible.
B
Good
80-89. Solid security. A few headers or DNS records to add.
C
Fair
70-79. Missing several protections. Fixable in an afternoon.
D
Poor
60-69. Significant gaps. Prioritize SSL and headers.
F
Critical
<60. Major vulnerabilities. Fix immediately.

Common Issues & How to Fix Them

SSL Certificate Missing or Expired

Your site shows "Not Secure" in browsers. Visitors see warnings. Search engines rank you lower.

Fix:

Get a free SSL certificate from Let's Encrypt (auto-renews) or purchase from DigiCert. Most hosting providers (Cloudflare, SiteGround, WP Engine) include SSL for free.

Missing Security Headers

Your site lacks protections against XSS, clickjacking, and content injection. These are one-line fixes that block entire categories of attacks.

Fix:

Add headers in your web server config or use Cloudflare (free plan includes most headers). For WordPress, install Sucuri or Wordfence to add them automatically.

Missing SPF / DMARC Records

Anyone can send emails pretending to be from your domain. This damages your reputation and makes phishing possible using your brand.

Fix:

Add TXT records in your DNS. Use MXToolbox SPF Generator to create the right record. For DMARC, start with v=DMARC1; p=quarantine; rua=mailto:[email protected]. Google Workspace and Microsoft 365 provide guided setup.

Slow Response Time

Slow sites lose 40% of visitors. Google uses speed as a ranking factor. Every second of delay costs conversions.

Fix:

Enable caching with Cloudflare (free CDN). Compress images. Use a fast host: WP Engine for WordPress, SiteGround for general hosting. Minify CSS/JS.

Outdated Technology Detected

Old PHP versions, unpatched WordPress plugins, or exposed server banners give attackers a roadmap to exploit your site.

Fix:

Update WordPress core and plugins weekly. Use Wordfence or Sucuri for automated updates and malware scanning. Hide server banners in php.ini or nginx.conf.

Recommended Security Tools

These are services we trust and use ourselves. Some links may be affiliate links — we earn a small commission at no cost to you.

Cloudflare
Free Plan Available

CDN, SSL, security headers, DDoS protection, and performance optimization in one click. The #1 fastest way to improve any site's security score.

Visit Cloudflare →
Wordfence
Free Plan Available

WordPress security plugin with firewall, malware scan, and login protection. Adds security headers automatically. Premium includes real-time threat defense.

Visit Wordfence →
Sucuri
Paid ($199/yr+)

Website firewall, malware removal, and monitoring. If your site is already hacked, Sucuri cleans it. The gold standard for WordPress security.

Visit Sucuri →
WP Engine
Paid ($25/mo+)

Managed WordPress hosting with SSL, caching, security patches, and daily backups included. Zero configuration — everything we check is handled automatically.

Visit WP Engine →
DigiCert
Paid ($295/yr+)

Premium SSL certificates with warranty, wildcard support, and validation badges. Best for e-commerce and sites handling sensitive data where trust matters.

Visit DigiCert →
MalCare
Free Plan Available

WordPress malware scanner and one-click cleaner. Finds malware other plugins miss. Built by the BlogVault team — trusted by 400,000+ sites.

Visit MalCare →