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Free SEO Tool
Verify SSL certificates, HTTPS status, and security headers for any website.
An SSL (Secure Sockets Layer) certificate is a digital certificate that authenticates a website's identity and enables an encrypted connection. It ensures data transferred between users and the website remains private and secure. Websites with SSL certificates use HTTPS instead of HTTP.
Google has confirmed HTTPS as a ranking signal since 2014. Websites without SSL certificates may show 'Not Secure' warnings in browsers, which increases bounce rates and reduces trust. SSL is essential for both security and search engine rankings.
Mixed content occurs when a secure HTTPS page loads resources (images, scripts, stylesheets) over insecure HTTP. This weakens the security of the entire page because attackers could intercept the insecure resources. Browsers may block mixed content or show security warnings.
HSTS (HTTP Strict Transport Security) is a security header that tells browsers to only connect to your website via HTTPS. It prevents protocol downgrade attacks and cookie hijacking. A recommended max-age is at least one year (31536000 seconds).
Common fixes include: installing a valid SSL certificate from a trusted Certificate Authority, redirecting all HTTP traffic to HTTPS, updating internal links to use HTTPS, enabling HSTS headers, and fixing mixed content by updating resource URLs to use HTTPS.
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