Check the SSL certificate of any domain for free with the Superplural Link tool. See the expiration date, issuer, certificate type, and much more in seconds.
Do you know that padlock that appears next to the address in the browser? It indicates that the site uses HTTPS, which is SSL/TLS encryption protecting the communication between the browser and the server. Sites without HTTPS lose positions on Google and generate distrust among visitors.
\n \nThe free SSL checker from Superplural Link shows all the details of the certificate for any domain in seconds.
\n \nWhat the SSL checker shows
\n \nWhen you enter a domain into the tool, you see:
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- Certificate validity: start and expiration dates. Expired certificates cause the site to display a security warning to visitors. \n
- Issuer: which certificate authority issued the certificate (Let's Encrypt, DigiCert, Comodo, etc.) \n
- Type: DV (Domain Validation), OV (Organization Validation), or EV (Extended Validation) \n
- Covered domains: whether the certificate is for a specific domain or wildcard (*.domain.com) \n
- Encryption algorithm: technical details about the level of security \n
When to use the SSL checker
\n \nAfter setting up HTTPS on a domain: When you install an SSL certificate or enable HTTPS on your server or service, the check confirms that everything is working correctly and that the certificate is valid.
\n \nCustom domain setup on Superplural Link: After pointing your custom domain to Superplural Link, use the checker to confirm that the SSL has been correctly issued for your domain.
\n \nExpiration monitoring: Certificates have a validity period (usually 90 days for Let's Encrypt or 1 year for paid certificates). Checking before expiration prevents the site from becoming inaccessible.
\n \nSecurity audit: If you manage multiple sites or client domains, a quick SSL check is part of the domain health monitoring process.
\n \nCheck third-party sites: Before entering data on an unknown site, checking its SSL provides more context about the seriousness of the service.
\n \nExpired SSL: what happens
\n \nWhen an SSL certificate expires, modern browsers (Chrome, Firefox, Safari) block access to the site and display a warning saying "Your connection is not private." Many users abandon the site at this point without attempting to continue.
\n \nTo avoid this, set up automatic renewal of the certificate on your server or hosting provider. And use the checker to confirm that the renewal has occurred.
\n \nDifference between HTTP and HTTPS
\n \nHTTP transmits data without encryption: any intermediary point between the user and the server can intercept and read the information. HTTPS encrypts everything: passwords, card data, forms, cookies.
\n \nIn addition to security, Google explicitly states that it uses HTTPS as a ranking factor. Sites without HTTPS are at a disadvantage in search results compared to competitors with a valid certificate.
\n \nComplementary domain diagnostic tools
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- DNS Lookup: check the complete DNS records of the domain \n
- Whois Lookup: see registration and expiration data for the domain \n
- HTTP/2 Checker: confirm if the server is using the most current protocol \n
- Safe URL Checker: check if the site is marked as dangerous by Google \n
- Ping: check if the server is responding and what the latency is \n
Check the SSL of any domain now at yourdomain.com/tools/ssl-lookup.
