Free Website Security Check
Comprehensive security analysis for any website. Check SSL, headers, DNS, email authentication, blacklists, and more.
Free • No signup required • Protected by Cloudflare
How It Works
Enter Your Domain
Type any website URL above. No signup or installation needed.
We Scan 7 Categories
SSL, security headers, DNS, email auth, blacklists, HTTP config, and WordPress.
Get Actionable Results
Receive a scored report with specific recommendations to improve your security.
What We Check
Our comprehensive scan analyzes 7 critical security areas. Here's what each check covers and why it matters.
SSL/TLS Certificate
We verify your SSL certificate validity, issuer, expiration date, protocol version (TLS 1.2/1.3), certificate chain, and Subject Alternative Names (SANs). We also detect if the certificate belongs to a CDN like Cloudflare rather than your origin server.
Security Headers
HTTP security headers are your first line of defense against common web attacks. Missing headers leave your site vulnerable to clickjacking, MIME sniffing, XSS attacks, and data injection.
DNS Configuration
DNS records are the foundation of your domain's internet presence. Misconfigured DNS can lead to email delivery failures, downtime, and security vulnerabilities.
Email Authentication
Email spoofing is one of the most common attack vectors. Without proper SPF, DKIM, and DMARC records, attackers can send emails pretending to be from your domain.
Blacklist Status
Being listed on a security blacklist means your domain has been flagged for malicious activity, spam, or compromised content. This severely impacts email delivery and SEO rankings.
HTTP Configuration
Proper HTTP configuration ensures your site is fast, secure, and properly accessible. We check for HTTPS enforcement, server software exposure, CDN usage, and modern protocol support.
WordPress Detection
If your site runs WordPress, we check for common security misconfigurations that attackers actively exploit. This includes version exposure, XML-RPC access, and exposed login pages.
Why Free Security Checks Matter
Most website owners don't know their site has security issues until it's too late — a hacked site, blacklisted domain, or stolen customer data. This free tool gives you instant visibility into your security posture. Each issue found comes with specific recommendations and links to the VistoShield module that can fix it automatically. No signup required. No software to install. Just enter your domain.