SSL monitoring

Top 7 SSL Monitoring Tools

Reliable SSL monitoring is crucial to every website and online service. Without it, you can lose customers, profits, and even your position in search engine rankings. 

But which SSL certificate monitoring is the best? 

Why Is SSL Monitoring Important

SSL certificate monitoring is necessary to confirm that communication with your website is encrypted and safe.

84% of users would abandon a purchase if the connection is not secure.Source: 

What will happen if you miss an invalid SSL certificate?

Your visitors will see a warning: 84% of users won’t finish the purchase (source:

You’ll lose trust and customers: 78% of users would stop engaging with the brand if there was a security breach (source:

You can’t accept credit card payments: every bank and fintech company will deny your merchant account.

Your website will be slower: owning an SSL certificate results in faster loading times, especially on mobile devices.

It can impact your SEO ranking negatively: more than 95% of traffic across Google is secured with an SSL certificate (source: Google’s Transparency Report).

Best SSL Monitoring Tools To Choose From

Every SSL monitoring tool has different prices, features, and a range of SSL updates it can catch. But these are not the only factors we’ve considered in our list.

1. UptimeRobot

UptimeRobot SSL certificate monitoring

UptimeRobot is an advanced uptime monitoring tool that comes with many features. With UptimeRobot, you can choose from HTTP(S), keyword, ping, port, and cron job monitoring. 

While monitoring your SSL certificate, precise monitoring intervals will also let you know when your website is down, no matter the reason. 

UptimeRobot alerts you when there’s any SSL error and 30/14/7 days before your SSL certificate expires

You’ll also receive notifications via up to 12 different integrations whenever there’s something wrong with your SSL certificate. 

UptimeRobot integrations

Another advantage of UptimeRobot is that you can simultaneously monitor other common website errors.  

UptimeRobot has modern and advanced mobile apps for iOS and Android, in addition to  aesthetically appealing status pages.

Pros Cons
✅10 – 1000 or more domains ❌Dashboard design is outdated
✅Advanced monitoring
✅Different monitor types
✅12 notification options
✅Mobile app
✅No technical knowledge needed

You’ll definitely get the most value for the best price – try a $7/month plan and see for yourself.

Get 10 SSL monitors for just $7

2. TrackSSL

TrackSSL SSL monitoring

TrackSSL is a simple tool used mainly to monitor certificate expiration. It also checks for SSL changes, which include updates made to the certificate by your provider. Unfortunately, it doesn’t mention any SSL errors.

When it comes to notifications, only e-mail, SMS, Slack and MS Teams are available – but in order to use MS Teams you’ll have to upgrade to a paid plan. 

Considering the limits of this service, the monthly price is not very tempting. While the first two domains are free, monitoring 20 domains requires a $17 per month (paid annually) upgrade. To monitor 80 domains it’s $35. 

Pros Cons
✅Easy to use ❌Price
✅Nice design ❌Only 4 integrations
❌Limited monitoring

3. Sematext

Sematext SSL monitoring

Sematext offers SSL monitoring under their Synthetics service. Therefore, it is more complicated and technical, and the price is high compared to other SSL certificate expiration monitoring options.

It’s a better option when you’re looking for more feature than just an SSL monitoring. The monthly price starts at $29 for 40 monitors.

Notifications are also limited. You need to upgrade to a higher plan for $99 per month to use webhooks or ChatOps integrations (that can send alerts to platforms like Slack and PagerDuty). 

Another downside of this SSL certificate monitoring service is that support is only available for paid plans. 

Pros Cons
✅SSL errors monitoring ❌Price
✅Checks certificate authorities ❌Limited integrations
❌Complicated interface
❌Limited support

4. SSL Certificate Expiration Alerts 

SSL Certificate Expiration Alerts SSL monitoring

SSL Certificate Expiration Alerts is the most minimalistic solution available. 

You guessed it, SSL certificate expirations are the only alerts this tool can send you. You won’t get any alerts regarding updates or issues to your certificate.

Additionally, it only offers e-mail notifications. However, it is completely free

On the other hand, this means that you can’t manage and edit your alerts. The only way to remove them is through the e-mail alerts you’ll receive. 

Pros Cons
✅It’s free ❌Only expiration alerts
✅Enough for hobby projects ❌No dashboard and editing
❌Only e-mail alerts

5. Datadog

Datadog SSL monitoring

Datadog offers SSL monitoring as part of their complex and very technical monitoring service. 

Therefore, it’s also not the best option to monitor SSL expiration if you’re not interested in their other solutions. They have multiple pricing plans, which can get quite confusing for a newcomer. 

SSL certificate monitoring from Datadog starts from $5/month per 1 monitor.

One plus from Datadog is that they’ll alert you about common SSL errors. Although the interface is one of the most complex and technical out there.

Pros Cons
✅All SSL alerts ❌Very complicated
✅Detailed incident reports ❌High price

Honorable Mentions: Open-source SSL monitoring

If you enjoy preparing your own solution, here are some SSL certificate monitoring open-source solutions worth mentioning.

These two projects stand out, starting with Certificate Expiry Monitor which you can find on GitHub.

6. Certificate Expiry Monitor

Available on GitHub, Certificate Expiry Monitor is a simple project that exports the expiration dates of SSL certificates to Prometheus – an open-source project used for monitoring and alerting. 

7. SSL Certification Expiration Checker

SSL Certification Expiration Checker is simply a shell script you can run from a cron job. After it reports on expiring SSL certificates, an e-mail will be sent through Nagios to warn you. 

How to Choose the Right Tool? 

Consider these rules of thumb when choosing an SSL certificate monitoring tool.

Don’t rely on SSL expiration monitoring only. Your SSL monitoring tool should also cover updates and errors.

Make sure you’re paying a reasonable price for what you get

Monitor SSL certificates that renew automatically, they could have issues too.

Consider additional features and monitor types as a plus. Monitoring other errors associated with your URL adds great value to your SSL monitoring.


Don’t settle for SSL expiration alerts only. Choose the best SSL certificate monitoring tool for the right price. 

Many tools only focus on the SSL expiration date, while UptimeRobot offers you much more for a better price. Starting from 10 monitors, you’ll get up to 12 notification integrations along with many other features – including status pages and uptime monitoring.

Start monitoring your SSL certificates for just $7/month and see how simple yet effective it is.

Start SSL monitoring now

Disclaimer: The information provided on this page is for informational purposes only. Our rankings and reviews are based on our own research and analysis, aimed at providing unbiased, objective, and reliable information to our readers. Despite our affiliation, we strive to maintain objectivity and factual accuracy in our content.

However, we cannot guarantee that all information presented is up-to-date or entirely accurate. We encourage you to conduct your own research and consult with professionals before making any decisions based on the information found on this page. If you detect any inaccuracies, please do not hesitate to inform us.

Our content is peer-reviewed by our expert team to maximize accuracy and prevent miss-information.

Fact checked by Tomas Koprusak

Product Owner | LinkedIn

Tomas Koprusak is a Product Owner at UptimeRobot. He has a rich history in similar roles at global IT powerhouses like IBM, where he started as a developer and moved to a Product Manager position, working with EMEA clients and colleagues from the US, Brazil, and China.

He has worked for Sygic as a marketer and co-led the implementation and development of a product acquired from a competitor. He has also worked as a freelance developer, helping clients from various areas.

Tomas brings a wealth of industry experience to our team. He spent a few years in the blockchain industry, leading projects and marketing teams at multiple blockchain-based companies. He has presented products and managed deals in more than 10 countries around the world, managed the ICO, and built a successful marketing team at Fuergy that continues to thrive.

Tomas managed a product team for the biggest job site in Slovakia, covering development and transformation to a new B2B app.

Not only is Tomas skilled at web development, but he also has a deep understanding of SaaS businesses, which makes him an invaluable asset in shaping and leading various projects at UptimeRobot. His focus is always on the continual improvement of our service and user experience.

In addition to his professional achievements, Tomas is a devoted father. His personal interests include cycling (he traveled around the whole country of Slovakia), playing guitar (he even played in a band), servicing bikes, music, and enjoying good beer.

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