Here is a list of the best free online SSL certificate checker tools that let you check and verify the SSL certificate on a web server. SSL stands for Secure Socket Layer which is basically an encryption-based Internet security protocol. It encrypts communication between users and the website to make sure that confidential data like usernames, passwords, and more is secured. An SSL certificate is used for providing security for online communications.
Now, if you want to check if the SSL certificate is properly installed on a web server or not, you can use these free online SSL checker tools. These tools highlight the issues with the SSL certificate of a web server. You can find out a lot of useful information regarding the SSL certificate including TSL certificate expiration date, certificate names, server IP address, server type, signature algorithm, and more. You just need to enter the server name and these websites will show you SSL certificate information. Now, let us check out the full list of online SSL checker tools that you can use for free.
Best Free Online SSL Certificate Checker Tools
Here are the best free online SSL certificate checker tools to verify the proper installation of an SSL certificate on a web server:
- digicert.com
- geocerts.com
- ssllabs.com
- sslshopper.com
- sslchecker.com
- thesslstore.com
- comodosslstore.com
- sectigostor.com
Let us discuss the above SSL certificate checker tools in detail!
1] digicert.com
digicert.com is a free online SSL certificate checker tool. It basically lets you verify if an SSL certificate is correctly installed on a web server or not. You can also check if an SSL certificate is issued by trusted SSL providers or not. It also fetches and displays some useful information that include TSL certificate expiration date, certificate names, and common vulnerabilities.
It is very easy to use. You can simply go to its website and enter the server address. After that, press the Check Server button to check the SSL certificate and related information. It also views some detailed SSL check information. This information includes TSL certificate has not been revoked, TSL certificate expiration date, certificate name matches, heartbleed vulnerability, names of protocol support, TLS ciphers supported by the server, etc.
You can also find some additional tools on this website. Some of these tools are Secure Secure Site SSL, Secure Site Wildcard SSL, Secure Device Use Case, Solutions for Code, etc.
It is a simple yet effective SSL checker tool that you can use for free. You can use it here.
Read: How to create Self-signed SSL Certificates in Windows 11/10?
2] geocerts.com
geocerts.com is a free web service to check SSL certificates online. With the help of this online tool, you can quickly verify whether or not the SSL certificate is installed properly on a website. It shows various SSL information including common name, issuing CA, Subject Alternative Names, certificate expiration date, certificate common name and hostname match, etc.
Some more SSL-related tools are offered by this website. These tools are CSR Decoder, Certificate Decoder, SSL Labs Server Test, Certificate Key Matcher, and more.
Want to check the SSL certificate on a server? Try it here. Just enter the website URL and port number, and then press the Check SSL button to get SSL certificate information.
RELATED: How to fix common SSL Connection errors in your browser?
3] ssllabs.com
ssllabs.com is another free online SSL certificate checker tool. This web browser enables you to verify and analyze SSL certificate installation on a server. To use it, you can type the website URL and then tap on the Submit button to check and view SSL certificate information.
It provides a full SSL Report that shows grades and ratings for an entered website between A Plus to C. A Plus rating basically means there is no problem with the SSL certificate as well as Protocol Support, Key Exchange, and Cipher Strength. However, a lower grade suggests that there are issues with the installed SSL certificate.
You can view SSL Certificate Information like common names, alternative names, serial number, issuer names, signature algorithms, etc. You can also use some other tools on this website, such as Browser test for SSL implementation, SSL Pulse, Documentation, etc.
It is a really good SSL certificate checker website as it shows you a full report and lets you know issues with the implementation of the SSL certificate.
See: FIX SSL_ERROR_HANDSHAKE_FAILURE_ALERT error.
4] sslshopper.com
You can also try sslshopper.com to verify the SSL certificate online. It basically lets you find out if there is an issue with SSL certificate installation on a server. Also, it lets you check if the SSL certificate is valid or not, whether the SSL certificate is trusted or not, etc. This tool also highlights the correct configurations.
You can simply type the website name in the Server Hostname field and then press the Check SSL button. It will then start verifying the SSL certificate and shows you the related information. It also displays various SSL Information including Server Type, SSL Certificate Issuer Name, Certificate Expiry Date, and more. This free online tool also offers a feature to compare SSL service providers for their servers. Plus, tools like CSR Decoder, SSL Converter, Certificate Decoder, and more are also available on it.
It is a good free online SSL certificate checker tool. Head over to its website to use it.
Read: Fix ERR SSL VERSION OR CIPHER MISMATCH error.
5] sslchecker.com
sslchecker.com is yet another free online tool to check SSL certificates for websites. It highlights issues with the SSL certificates and shows you various related information. You can check SSL certificate information like Resolves To, Expiration Date, Vendor Signed, Key Length, website’s common name, associated names, origin country, etc. Plus, a handy feature to remind you about the expiry of SSL certificates is also provided by it.
It also displays certificates’ names and you can also download them. You can find some additional useful features on its website like Insecure Content Checker, Private Key, SSL Match, CSR Generator, Self-Signed SSL Generator, etc.
Go to its website and start checking the SSL certificates of web servers. For that, simply enter the hostname and port number, and hit the Check button.
Read: Fix ERR BAD SSL CLIENT AUTH CERT error for Google Chrome.
6] thesslstore.com
Another free online SSL checker tool that you can use is thesslstore.com. It lets you check and verify SSL certificate installation. You can even find out if the SSL certificate on your server is installed correctly or not.
To use it, visit its website in a web browser and enter Server Hostname. And then, press the Check button. It will show you SSL certificate information in a blink of an eye. The information it displays includes Server IP Address, Server Type, Issuer Name, Expiring Date, Alternative Names, etc. Plus, it also highlights issues with SSL certificate installation in Red.
You can also find more useful tools on it like Website Security Solutions, Code Signing Certificates, Email Signing Certificates, and more.
RELATED: Secure Time Seeding in Windows 10 reduces errors due to incorrect time.
7] comodosslstore.com
Try comodosslstore.com to check SSL certificates online without any hassle. It shows SSL certificate information like Server IP Address, Server Type, Issuer, Expiring In, Common Name, Alternative Names, Signature Algorithm, etc. You can verify the installation of an SSL certificate on a web server. Plus, additional tools like SSL Types, Code Signing, Web Security Tools, and more can also be used.
Use it here.
8] sectigostor.com
One more free online SSL certificate checker tool on this list is sectigostor.com. It verifies the installation of an SSL certificate on a website and shows you various related information. Just enter the web address, verify reCaptcha, and press the Check button to check the SSL certificate. You can view server type, other associated server names, signature algorithm, issuer name, etc. Additionally, Sectigo SSL, Instant SSL, Enterprise SSL, Extended Validation SSL, and Organization Validation SSL are some more features that you can use on this website.
That’s it! Hope this list of free SSL checkers helps you.
How do I check if my SSL is valid?
To check if your SSL is valid or not, you can use these free online tools. These let you verify and analyze the SSL certificate on a web server. To name some, you can try free online tools like digicert.com, thesslstore.com, and sslchecker.com.
What is SSL checker?
An SSL checker is basically a tool that can verify and analyze the proper installation of an SSL certificate on a server. For example, web services like geocerts.com, ssllabs.com, and sslshopper.com act as an SSL checker tool as these allow you to verify whether an SSL certificate is properly installed on a web server or not.
How can I check a website is secure?
One of the most common ways to check whether a website is secure or not is to check the SSL certificate. A secure website’s URL always has “HTTPS” at the start. If you are on the Edge browser, you can check whether to trust a website or not.
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