SSL Certificate Monitoring
Your website's SSL certificate plays an important role in keeping browser connections secure and helping visitors trust that they have reached the website they intended to visit.
Site Detection gives you visibility into SSL certificate information alongside website uptime, response time and availability monitoring, so certificate-related issues are not something you have to remember to check manually.
SSL visibility • Website uptime • Response time • Incident history • Email, SMS, Slack, Teams & Google Chat alerts
Why SSL Certificate Monitoring Matters
Most modern websites use HTTPS to protect data moving between the visitor's browser and the website. That secure connection depends on a valid SSL/TLS certificate.
Secure Connections
SSL/TLS certificates help browsers establish encrypted connections with your website.
Visitor Confidence
A valid HTTPS connection helps visitors feel confident that they have reached your legitimate website.
Avoid Surprises
Certificate-related issues can create browser warnings or accessibility problems that a business owner may not immediately notice.
What Happens When an SSL Certificate Has a Problem?
Certificate issues do not always look like a traditional website outage. The server may still be online, but browsers can warn visitors that the connection is not private or secure.
Browser Security Warnings
Visitors may see a warning instead of the website they expected to reach.
Lost Customer Confidence
A security warning can make a customer hesitate before continuing to a site or submitting information.
Missed Business
A visitor who encounters an unexpected certificate warning may leave and choose another business instead.
SSL, TLS and HTTPS: What Is the Difference?
These terms are often used together, and the wording can be confusing if you are not responsible for managing web servers every day.
SSL
SSL stands for Secure Sockets Layer. The original SSL protocols have been replaced by newer TLS protocols, but people still commonly say “SSL certificate.”
TLS
TLS stands for Transport Layer Security. It is the modern technology used to encrypt the connection between a browser and a properly configured secure website.
HTTPS
HTTPS is the secure version of HTTP. When your browser connects to a website through HTTPS, SSL/TLS certificates are part of establishing that secure connection.
Why Checking Your Certificate Manually Is Easy to Forget
A certificate may work perfectly for months, which makes it easy to forget that it has a lifecycle and important status information worth monitoring.
Manual Certificate Checking
- You have to remember to check it
- It may be months between reviews
- Website changes can happen without your involvement
- You may not personally manage the hosting environment
- A customer may notice the warning before you do
SSL Certificate Monitoring
- Certificate information stays visible alongside your website monitoring
- You do not have to make certificate checks part of your daily routine
- SSL becomes part of the same website-health picture as uptime
- You have another layer of visibility outside your hosting provider
- Certificate-related issues are less likely to be completely unexpected
SSL Is Only One Part of Website Availability
A valid certificate does not guarantee that a website is working, and an online server does not guarantee that every part of the website is healthy.
Website Uptime
Is the website available when it is checked?
Response Time
How quickly is the website responding?
SSL Information
What is happening with the certificate used by the website?
Incidents
When were website availability problems detected?
That is why Site Detection treats SSL as part of a broader website monitoring service, rather than as an isolated technical task.
How Site Detection Fits SSL Into Website Monitoring
Site Detection is designed to give business owners useful visibility into website health without requiring them to operate an enterprise monitoring platform.
Add Your Website
Enter the public website you want Site Detection to monitor.
Website Monitoring Begins
Site Detection monitors website availability from outside your hosting environment.
SSL Information Is Included
Certificate information becomes part of the website-health information available through Site Detection.
Downtime Alerts Are Sent by Email
If Site Detection detects that the website is unavailable, it sends a downtime alert by email.
Who Should Monitor SSL Certificates?
If customers use your website, HTTPS and certificate health should not be something your business simply assumes is fine.
Small Businesses
Many small businesses do not have a dedicated web operations team watching certificates and website availability every day.
E-commerce Websites
Customers expect a secure browser connection when browsing products, entering account information, or making purchases.
Professional Services
A security warning can create an immediate trust problem for prospective clients researching your business.
Medical & Dental Practices
Patients expect a professional, secure browsing experience when visiting a practice website.
Agencies & Consultants
Monitoring adds another layer of visibility into business-critical websites you support.
Any HTTPS Website
If your public website uses HTTPS, its certificate is part of the experience every visitor depends on.
Your Hosting Provider Is Not the Same as Independent Website Monitoring
Your hosting company may manage infrastructure and may even automate certificate renewal, but independent monitoring gives you another perspective on the website your visitors are actually reaching.
Infrastructure View
A hosting provider primarily manages the systems and services it operates. That does not always mean you are personally watching every website-specific condition.
Website View
Site Detection monitors the website externally, helping you keep visibility into the experience presented by your public site.
Common Certificate-Related Problems Businesses Want to Avoid
SSL/TLS issues can come from several different situations, and many are easy to overlook until the browser exposes the problem.
Expired Certificates
A certificate that is no longer valid can trigger browser security warnings and interrupt the normal visitor experience.
Certificate Mismatch
A certificate configured for the wrong hostname can cause browsers to warn that the identity of the website cannot be verified normally.
Configuration Problems
Changes to hosting, proxies, DNS, CDN services, or web-server configuration can sometimes introduce certificate-related issues.
For the availability side of website health, see our website uptime monitoring and website downtime monitoring pages.
Keep SSL Visibility With the Rest of Your Website Monitoring
Site Detection helps you keep an eye on website availability, uptime, response time, incidents and SSL information from one straightforward monitoring service.
Start Monitoring Your WebsiteFrequently Asked Questions About SSL Certificate Monitoring
What is SSL certificate monitoring?
SSL certificate monitoring keeps visibility into certificate information associated with a website so certificate-related issues are less likely to catch the website owner by surprise.
What happens if an SSL certificate expires?
If a website presents an expired certificate, browsers may display a security warning and visitors may be reluctant or unable to continue to the website normally.
Is SSL the same as TLS?
Not exactly. SSL is the older technology and TLS is the modern protocol used for secure web connections. However, “SSL certificate” remains the common phrase people use when referring to certificates used with HTTPS websites.
What is HTTPS?
HTTPS is the secure version of HTTP. It uses TLS and a website certificate to help encrypt communication between a visitor's browser and the website.
Can my website be online while the SSL certificate has a problem?
Yes. The web server may still be running while a browser presents a certificate-related warning. That is one reason certificate health and website uptime are related but not identical.
Does Site Detection only monitor SSL certificates?
No. Site Detection provides broader website monitoring, including availability, uptime, response time, incident information and SSL visibility. Site Detection currently sends email, SMS, Slack, Teams and Google Chat alerts when website downtime is detected.
Do I need to install anything on my website?
No. Site Detection monitors public websites externally, so you do not need to install a Site Detection monitoring agent or plugin.
Does Site Detection send SMS or text alerts?
Yes. Site Detection provides downtime alerts by email, SMS text, Slack, Microsoft Teams, and Google Chat.
Can Site Detection monitor SSL on a WordPress website?
Site Detection monitors websites externally, so the site does not need to use a particular content-management platform. A public WordPress website using HTTPS can be monitored like other websites.
Why monitor SSL if my host automatically renews my certificate?
Automated renewal is useful, but configuration problems, hostname mismatches, hosting changes and other unexpected issues can still occur. Independent visibility provides another layer of awareness.
Is SSL monitoring the same as uptime monitoring?
No. SSL monitoring focuses on certificate-related information. Uptime monitoring focuses on whether the website remains available over time. Both contribute to a broader picture of website health.
Monitor More Than Whether Your Website Is Simply “Up”
Keep visibility into uptime, response time, incidents and SSL information with Site Detection.
Start Monitoring Your Website Run a free SSL check