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SSL Checker
Verify SSL certificates with our online SSL checker
Quickly verify the validity and security of your SSL certificates with our easy-to-use online SSL Checker. Whether you're a website owner, developer, or IT professional, our tool helps you ensure that your SSL certificates are properly installed and up to date, providing secure connections for users.
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Instant SSL validation
Our SSL Checker instantly verifies your SSL certificate, providing detailed information on its validity, expiration date, and correct installation. This feature ensures that your website is secure and that users can trust their connections.
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Comprehensive SSL certificate information
Receive a detailed report on your SSL certificate, including issuer details, encryption strength, and domain name validation. This information helps you ensure that your SSL certificate is properly configured and that your website meets security standards.
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Cross-device compatibility
Whether using a desktop, tablet, or smartphone, our SSL Checker is fully responsive and accessible from any device. You can verify your SSL certificates on the go, ensuring that your website’s security is always up to date.
How to use the SSL checker
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Enter Your Website URL: Type your website's URL into the SSL Checker's input field.
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Click 'Check SSL': The tool will instantly analyze your SSL certificate, verifying its validity and security.
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Review the Results: You will receive a detailed report on your SSL certificate's status, including any potential issues that need to be addressed.
How our SSL Checker compares
Static.app's SSL Checker gives you an instant, no-signup read on a live certificate; the tools below are all solid free options, and Qualys SSL Labs remains the gold standard for deep server-configuration analysis.
| Static.app | Qualys SSL Labs | DigiCert SSL Checker | SSLShopper | |
|---|---|---|---|---|
| PriceAll four are free to use. | Free | Free | Free | Free |
| Signup requiredNone require an account. | No signup | No signup | No signup | No signup |
| Core certificate detailsWe show issuer, valid-from/until, days left, signature algorithm, fingerprint, and additional domains (SANs). | Issuer, validity, expiry, SANs, fingerprint | Full cert details | Cert details + install | Issuer, dates, domains |
| Expiry countdownWe show a plain days-until-expiration count and badge. | Yes (days left) | Yes | Yes | Yes |
| Certificate chain / intermediatesCompetitors flag missing intermediates and chain trust issues; our tool reports the leaf certificate only. | No | Yes | Yes | Yes |
| Protocols, ciphers, and gradeQualys deeply analyzes protocols, cipher strength, key exchange, and handshake simulation and assigns a letter grade. | No | Yes (A+ to F grade) | Partial | No |
| Vulnerability testingQualys and DigiCert test for known TLS weaknesses; our tool does not. | No | Yes | Yes (common CVEs) | No |
| Speed of resultsQualys trades speed for depth; ours returns a snapshot immediately. | Instant | ~2 min deep scan | Fast | Fast (may cache ~1 day) |
| Best forEach tool has a clear sweet spot; pick by whether you want speed or depth. | A fast, clear cert snapshot with no signup, inside the Static.app platform | Authoritative deep TLS config audit and grade | CA-backed install and vulnerability check | Quick install check with expiry reminders |
If you want a quick, readable certificate snapshot with no signup, our checker is a fast first stop; for an exhaustive grade of your whole TLS configuration, run Qualys SSL Labs alongside it.
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Frequently asked questions
What is an SSL checker?
An SSL checker is an online tool that verifies the validity, installation, and configuration of SSL certificates on websites. It ensures that the SSL certificates are correctly installed and that the site provides a secure connection for users.
Is the SSL checker free to use?
Yes, our SSL checker is completely free to use. You can access it from any device with an internet connection without any hidden costs or limitations.
Do I need to download or install anything to use the SSL checker?
Our SSL checker requires no downloads or installations. It is a fully online, browser-based tool, meaning you can start checking your SSL certificates immediately without setting up any software.
How do I check my SSL certificate using the SSL checker?
To check your SSL certificate, enter your website's URL into the SSL checker's input field and click "Check SSL." The tool will analyze your SSL certificate and provide a detailed report on its status.
What does an SSL certificate checker do?
An SSL certificate checker verifies the validity, expiration date, and proper installation of an SSL certificate on a website. It helps ensure that the website is secure and that user data is protected during transmission.
Does the SSL checker support all types of SSL certificates?
Yes, our SSL checker supports all types of SSL certificates, including single-domain, wildcard, and multi-domain SSL certificates. It can verify certificates from any Certificate Authority (CA).
Can I use the SSL checker on mobile devices?
Absolutely! Our SSL checker is fully responsive and works seamlessly on desktops, tablets, and smartphones. You can check SSL certificates on the go without any issues.
What are the benefits of checking your SSL certificate regularly?
Regularly checking your SSL certificate offers several key benefits: * Ensure Security Compliance: Verify that SSL certificates are valid and properly installed to maintain a secure website. * Avoid Expirations: Regular checks help you avoid certificate expirations, which can lead to security warnings for users. * Boost SEO and Trust: A valid SSL certificate improves SEO rankings and ensures users trust your website.
What is the best free SSL checker, and how does Static.app compare to Qualys SSL Labs?
It depends on what you need. Qualys SSL Labs is the most thorough free option and is widely treated as the reference: it deeply analyzes your protocols, cipher suites, key exchange, and certificate chain and gives your server an A+ to F grade, though a full scan takes around two minutes. Static.app's SSL Checker is built for speed and clarity instead: enter a domain and you instantly see the issuer, validity dates, days until expiration, signature algorithm, fingerprint, and any additional domains, with no signup. Use ours for a fast certificate snapshot and Qualys when you want a complete configuration audit.
Does the SSL checker verify the certificate chain and intermediate certificates?
No. Static.app's SSL Checker inspects the live leaf certificate and reports its issuer, validity, expiration, signature algorithm, fingerprint, and additional domains, and it flags self-signed or SHA-1 certificates. It does not diagnose the full trust chain or missing intermediate certificates. If you need to confirm your intermediates are served correctly, tools like SSLShopper, DigiCert, or Qualys SSL Labs are a better fit for that specific check.
Do I need to upload my certificate file to check it?
No. The SSL Checker connects to the live domain you enter and reads the certificate the server is actually presenting, so there is nothing to upload or install. It is a free, browser-based tool and part of the Static.app platform, so once you have confirmed your certificate you can host a static website with us in the same place.