10 Best SSL Certificate Monitoring Tools in 2025

Neglecting your SSL certificates' renewal can deal heavy damage to your reputation. And monitoring it is quite easy.

Before we dig deep into SSL monitoring tools, we need to understand what it is in the first place and why we need it. SSL or Secure Sockets Layer is a standardized technology keeping your internet connection secure and protects any data, especially sensitive data sent and received between two systems. This prevents anyone from reading or modifying any information transferred and disrupting the exchange of information. SSL protects your data by encrypting it, thus making it unreadable by anyone trying to intercept it. You might have heard of TLS or Transport Layer Security, which is just the new standard and is more secure. However, we still use the term SSL while speaking about security certificates since it is a more commonly used term. So, when you buy Security Certificate, yo get TLS certificates with multiple encryption types like ECC, RSA, or DSA. Certificates are normally bought with an expiration date for a year, two, or more.

You can always cross-check your Certification Authority (SSL Certificate issues), in multiple databases, such as Visa.

10 Best SSL Certificate Monitoring Tools and Software in 2025

Now that you understand how vital part security certificates play in the lifetime of your website let's take a look at the best SSL monitoring tools in 2025.

1. Better Stack

Better Stack offers a powerful Uptime monitoring solution with Incident management built-in. Better Stack offers both cron job and SSL certificate monitors, which often work hand in hand. On top of that, you get access to a powerful platform combining Synthetics Monitoring, Incident Management, and Status Pages manager.

In case of any incident, each error is documented with a screenshot and a second-by-second timeline. Better Stack checks on your website every 30 seconds from multiple locations. That means no more false alarms or location-related issues going unnoticed.

It supports many integrations, including Datadog, New Relic, Grafana, Prometheus, Splunk On-Call, Zabbix, AWS Cloudwatch, GCP, and Azure. Thanks to unlimited phone call alerts, SMS, email, Slack, MS Teams, and push notifications, you never miss an error.

Better Stack offers a Free plan which includes 10 monitors with basic email and Slack alerts. For advanced needs, their pricing is based on a Responder license at $29/month, which unlocks unlimited phone/SMS alerts, on-call scheduling, and advanced monitoring types like SSL, TLD expiration, and TCP/UDP port checks. The platform is also scalable, allowing users to add more monitors (e.g., 50 additional uptime monitors for $21/month) as needed.

Main Benefits of Better Stack:

A platform offering Incident Management, Status pages, and Uptime Monitoring
Can be integrated with Better Stack's telemetry management solution for full observability
Flexible and predictable pricing model

2. UpDown

UpDown offers solutions for monitoring, alerting, reporting, and status pages. In uptime monitoring, you can check services using HTTP(S), TCP, ICMP, and monitor cron jobs. It includes features like SSL & domain expiration monitoring, content matching, and API calls. The checking interval is flexible, ranging from 15 seconds to 1 hour, and downtimes are always double-checked from different locations.

All collected data is visualized on dashboards and hosted status pages, which can be public or private and are fully customizable. Automated reporting allows you to send uptime monitoring data via automated links or API on a frequency you decide.

Alerts are managed through various platforms like Email, SMS, Webhook, Slack, Microsoft Teams, Telegram, and Zapier. Thanks to UpDown's helpful status pages, you can easily share updates about any downtime.

UpDown offers a straightforward pay-as-you-go pricing system where 1 credit equals 1 check, and you start with 100,000 free credits. The total cost varies based on how often you check and the number of credits bought upfront. For instance, monitoring 10 websites every 2 minutes can cost as little as 1.83€ a month when you purchase credits in bulk. Since there are no fixed plans, everyone has access to the same great features.

Main Benefits of Updown:

Dual-stack monitoring (IPv4/v6)
Cryptocurrency Payments
Text Search matching the presence of a string instead of the regular HTTP status
Hosted Status Pages

3. Sucuri

Sucuri offers a complex securing solution for your website. They protect webpages via multiple countermeasures like virtual patching and hardening with adding security patches and server rules. Machine learning helps them correlate attack data across their network to better understand and prevent malicious behavior. Adding another layer of security, IP allow-listing or signature verification alongside Bad Bot and Geo-blocking, makes your website much safer.

Sucuri's pricing is offered in annual tiers. While all plans include a Website Application Firewall (WAF) and basic SSL monitoring, advanced SSL Certificate Support begins with the Pro Platform plan at $339/yr. This plan also offers a faster 12-hour malware removal service level agreement (SLA) and more frequent security scans compared to the Basic plan ($229/yr).

Main benefits of Sucuri:

Malware and Hack protection
Zero-day Exploit prevention
DDoS Attack Mitigation
Brute Force Attacks Protection

4. Sematext

Sematext offers a full spectrum of monitoring solutions, and synthetics belongs among them. Using Sematext Synthetics, you can monitor your Uptime and API from multiple locations, from private networks, and behind firewalls. You can track network timings across all layers, including DNS, TCP, SSL, and HTTP. Using customized requests, you can monitor your APIs, and in case of any error, get notified on your favorite platform, including Slack, Email, Webhooks, and more.

SSL Certificate monitoring is a part of the Synthetics service and keeps your website reliable and accessible by avoiding website downtimes due to any SSL-related issues and continuous monitoring of the validity of your SSL certificates. Before any expiration, you get a notification with the option of tracking the error and all the certificates in the certificate chain.

Synthetics also lets you keep an eye on your website's performance. You can get metrics concerning page load performance, core web vitals, third-party software performance and check its reliability by verifying SLAs. All of the tests take place in real Google Chrome Browser.

Sematext Synthetics provides flexible and affordable pricing options to suit different needs. You can start with the Pay-As-You-Go plan, which begins at just $5 a month, with $2 for each HTTP monitor and $7 for each Browser monitor. I

If you're looking for a bundled option, the Standard plan starts at $29 per month, giving you 40 HTTP and 5 Browser monitors to work with

Main Benefits of Sematext:

Custom Metrics
Browser console error logs
Webhooks integrations

5. StatusCake

StatusCake checks your website from 43 locations in 30 different countries. Thanks to their historical website downtime reports, you can evaluate and analyze your previous outages, compare them to real-time metrics and understand what went wrong, or better yet, prevent any further failures.

StatusCake offers a complex SSL monitoring service alerting you up to three times before your certificate's expiration. For further evaluation, you can use their StatusCake SSL algorithm to see your SSL score and possibly address additional issues with your certificates.

SSL monitoring is included in all StatusCake packages. The Free plan lets you have 3 uptime monitors with tests every 15 minutes and includes a special SSL monitor. If you want more frequent checks, the Superior plan at $24.49/month gives you 100 uptime monitors with tests every minute, along with 50 SSL monitors checked every 30 minutes.

Main Benefits of StatusCake:

Page Speed Monitoring
Domain Monitoring
Server Monitoring
StatusCake Pages App

6. Site24x7

Site24x7 offers out-of-the-box SSL/TLS Certificate monitoring from the cloud and triggers an alert before they expire. On top of that, you can monitor possible certificate revocation, or with an SHA-1 fingerprint check, you can bust any possible certificate tampering or blacklisted certifying authority. Site24x7 monitors your certificates of important web services like HTTPS, SMTP, POP server, IMAP Server, and FTP server from more than 100 locations.

Site24x7's Synthetic monitoring helps you to test the availability, performance, and functionality for all critical components that help deliver your digital business to guarantee site reliability and user experience. With regular expression patterns or strings, you can check for the presence of a value in the returned response body, and you can also verify web server configuration by adding response headers. To detect and optimize any issues, you can record critical business transactions with their browser extension and check them from multiple locations by simulating traffic. You can either record typical user paths or import Selenium IDE test scripts and use them at regular intervals on a real browser like Chrome or Firefox.

Site24x7 offers SSL monitoring in all plans, including a Free Forever plan that supports up to 50 resources at no cost. Paid options are bundled, with the All-in-One Professional plan starting at $42/month annually. It offers website, server, and app monitoring. Synthetic transaction monitoring is available mainly as an add-on, such as 10,000 synthetic runs for an extra $8/month.

Main Benefits of Site24x7:

Port Monitoring
FTP Server Monitoring
Root Cause Analysis
Mail Delivery Monitoring

7. Pingdom

Pingdom offers SSL/TLS monitoring as a part of its uptime monitoring feature. You can select HTTPS when setting up an HTTP uptime check to monitor your website certificates. Once the check is enabled, Pingdom automatically monitors your certificates and warns you about any errors or approaching expiration dates.

Pingdom offers Synthetic and Real User Monitoring Solutions as two stand-alone bundles. Using Synthetic Monitoring, you can get Uptime, Page Speed, Transaction, and API monitoring. On top of that, you can create custom Pingdom status pages that offer a certain level of customizability. Pingdom monitors your website from over 100 locations around the globe and in case of any outages, you will get notified via SMS or email. Each potential error is double-checked to prevent any false alarms.

Pingdom lets you easily identify and fix issues related to loading times. Granular web page load tests allow you to monitor the performance of every single element. You can also review historical data and evaluate the performance of your page over time, which can help you spot performance trends and issues. Broken multi-step transactions like login, search, or checkout are monitored using probe servers.

Uptime monitoring, which includes SSL checks, is part of Pingdom's Synthetic Monitoring bundle. The pricing uses a customizable model where you select the quantity of monitors you need. The plan starts at $10/month, which includes a package of 10 Uptime monitors, 1 Advanced monitor (for transactions or page speed), and 50 SMS alerts. You can scale up by choosing larger packages of monitors to fit your needs.

Main Benefits of Pingdom:

Public status pages and reports
Multiple-locations check

8. TrackSSL

TrackSSL, well, keeps track of your SSL certificates. Trusted by both big and small companies, TrackSSL checks your SSL certificate on a regular basis and checks for common errors. Apart from expiration, TrackSSL also verifies changes in infrastructure and notifies you when certificate information is updated.

TrackSSL provides multiple subscription options, including a Free plan that monitors up to 2 domains with Slack integration. The Starter plan, covering 20 domains, is priced at $204/year (or $17/month, billed annually). Pricing scales up with the number of domains; for example, the Complete plan for 200 domains costs $864/year ($72/month, paid annually). Higher-tier plans add features like Teams and Webhook integrations.

Main Benefits of TrackSSL

Slack, Teams, and Webhook integrations
Customizable notifications
Monitors for infrastructure changes
Private certificate monitoring (on higher tiers)

9. Keychest

Keychest offers a complex SSL certificates monitoring and maintenance solution for both personal and enterprise needs. KeyChest not only monitors expiration dates and updates of your certificates but also helps you find them in the first place. To prevent downtimes, KeyChests renews certificates for you and is independent of certificate issuers. They offer simplified on-demand renewals, automation of deployment, detection of failures, and lightweight proxy for internal networks.

Their pricing depends on your needs. If you are looking for a personal SSL certificate monitor, you can grab their Personal plan for free. This plan includes HTTPS/TLS monitors for personal use, certificates discovery, end-points discovery, and expiration reports. On the other hand, their Enterprise plan offers multiple users, full reporting, internal certificate management service fully integrated with several certificate providers like SectiGo, Digicert, GeoTrust, thawte, RapidSSL, GoDaddy, or COMODO in an annual fixed-price license.

Main Benefits of Keychest:

Vulnerable endpoints monitor
Phishing threats monitor
Single-sign on: OKTA (Azure soon)

10. Robot.alp

Robot.alp offers SSL monitoring as a part of their comprehensive website monitoring solution. They monitor your SSL certificates on a regular basis to prevent any misconfiguration or expiration that could potentially mark your website as dangerous.

Their pricing is simple, based on monitors, not features. All monitor types—Website, Port, JSON, SSL, Keyword, DNS, Safe Browse, and Page Speed—are included in every plan, offering great value. The Free plan provides 20 monitors and 100 alerts monthly, ideal for beginners. The main paid option is the Business plan, starting at $15/month annually, with 50 monitors and unlimited alerts. You can scale this plan with more monitors if needed.

Main Benefits of Robot.alp:

All monitor types included in every plan
Unlimited alerts on paid plans
Integrations with Slack, Teams, Discord, and more
Public and private status pages ## Honorable Mentions:

HTTPS Cop

HTTPS Cop is a not yet released project of a freelance software engineer Ashish Kumar. HTTPS cop provides a simple solution for most of the issues you can encounter with SSL certificates.

LetsMonitor

LetsMonitor is a Free service monitoring your website certificates to receive alerts before certificate expiration or any misconfiguration. In addition, they offer Performance and availability monitors, Threat and Fraud protection monitors, or Connectivity tests.

Conclusion

This article covered the essentials of SSL Monitoring. We’ve started with what SSL certificates are, why are they important and what are the consequences of neglecting their monitoring. Then we went through the list of The Best SSL Monitoring Tools and Software in 2023. Now, try to pick your favorites, further study their functionality and pick a solution that will suit your needs the most.

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