Organize 6 free SSL certificate expiration monitoring and reminder online tools

As the Spring Festival approaches, students whether in school or working are taking holidays one after another. The company has decided to take a holiday tomorrow morning after finishing the work. For our operation and maintenance staff, the only thing we need to do is to monitor the customer server and back up the website data to ensure that if there is an unexpected problem, it can be restored in time. This morning, the SSL certificate of a customer website did not automatically renew in time, because most customer websites use free SSL certificates, including free one-year and free three-month let\\’s encrypt certificates.

Because most of the WEB environment installation packages we choose come with let\\’s encrypt certificates and are automatically renewed by default. However, there are some unknown issues that cannot be automatically renewed and require manual processing. So Snail is going to compile a few free SSL certificate expiration monitoring online tools that you may use today.

Snail personally recommends that if we use it for a personal website, we can use a free certificate to save costs. If it is a corporate customer website, I actually recommend using a paid certificate. For example, you can buy it for 2 or 3 years at a time, which saves trouble. After all, SSL certificates are not expensive these days.

First, paid certificate email reminder

If we use a paid SSL certificate like Namecheap, Tencent Cloud Alibaba Cloud free 1-year/paid certificate, there will be an email reminder notified to the mailbox of our registered account before expiration. Therefore, for this type of paid certificate, we do not need to add additional certificate monitoring. We only need to ensure that the email address of the registered account can be received. There are still many mobile email clients nowadays. Even if we don’t often log in on the PC, our mobile phones still need to ensure that we can receive emails as soon as possible.

Related articles about paid and free certificates we can apply for:

1. 6 free SSL certificate applications to save costs and configure website HTTPS encrypted URL

2. OneinStack one-click package to quickly automatically configure Let\\’s Encrypt free SSL certificate method

3. Tencent Cloud Free Version GeoTrust DV SSL Certificate Application Process Record

Second, Certificate Expiry Monitor

Address: https://certificatemonitor.org

Certificate Expiry Monitor can directly set domain names + monitoring emails, and can submit up to 20 domain names at a time. In fact, Snail has also seen that this tool script has been open sourced to GITHUN. I will install it when I have time in the future. This monitoring tool can remind us by email when the certificate expires in 3 months, 2 months, 1 month, 14 days, 7 days, 5 days, 3 days, 2 days, or 1 day.

Third, KeyChest

Tool address: https://keychest.net

This tool is more powerful than the previous ones and requires an account registration for management, because its tools can also include website and security monitoring. In this article, Snail will briefly mention it. There will be time to experience this function in detail later. Although we may not be able to use it, I also like to pursue the improvement of knowledge and in-depth understanding.

Fourth, LetsMonitor

Tool address: http://letsmonitor.org

The LetsMonitor tool function is also relatively complex. It requires registering an account for management, which also includes website monitoring online, and we can customize the number of days for expiration reminders. However, it can only remind you once, which is a bit unhumane. It would be better if you can remind it multiple times.

Fifth, MYSSL

Tool address: https://myssl.com

On the MYSSL website, we can see that there are many SSL-related tools that can be used, including tools for monitoring SSL expiration. You can monitor and remind by scanning the QR code. Among them, MYSSL also includes dozens of tools such as CSR online generation, SSL configuration generator, etc.

Sixth, SSL Certificate Expiration Alerts

Tool address: https://alerts.httpscop.com/

This tool is actually introduced by Snail in \\"SSL Certificate Expiration Alerts – SSL Certificate Expiration Email Reminder Tool\\", we can organize it here. Notification emails will be sent 14 days after expiration. If the contract has not been renewed within 10 days, notifications will be sent once a day.

To summarize, if we use a paid SSL tool, we will generally remind you to the registered account email before expiration. If we use a free certificate or one generated by WEB, most of them are automatically renewed, and sometimes the renewal cannot be successful. Of course, for example, if we manage websites in batches, it is best to use a tool to monitor expired SSL, because sometimes it is really not taken into account.

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