- Most common certificate type worldwide – Domain Validation certificates represent the largest share (often the majority of SSL usage) because they are low cost and easy to issue. For example, in one market report DV held about 54% of SSL certificate usage globally.
- OV certificates make up a significant share of business‑oriented SSL deployments (OV accounted for about 32% in one dataset).
- EV certificates generally account for a smaller portion of total SSL deployments (e.g., ~14% or less).
- Widely used by businesses managing many subdomains; about 43% of small/medium business sites use wildcard for subdomain coverage.
- SAN/Multi‑domain usage is growing, trending roughly 38% adoption among larger organizations by 2026.
- Nearly 300 million SSL certificates exist online and continue to grow.
- Over 50% of all websites still use weak or poorly configured SSL security settings.
- For many businesses, monitoring billions of logged certificates (over 12 billion in public logs) helps detect fraud or misissuance.
- Certificate Transparency monitoring adoption (tracking unauthorized certificates) is about 45–61% among enterprises.
Today, keeping your website secure is very important. SSL certificates help protect your website and your users. They keep data safe by encrypting the connection between your website and the visitor.
Every business must use SSL certificates. But many forget to monitor their expiry dates. This can cause big problems like security warnings, broken websites, and loss of trust.
This is why monitoring SSL certificates is important. Tools like Remindax can help. It sends alerts before your certificates expire. Let’s look at the different types of SSL certificates businesses should track.
1. Domain Validated (DV) SSL Certificates
These are the most basic types of SSL certificates. They only check if you own the domain name. Getting them is easy and fast.
DV SSL certificates are used on blogs, personal websites, and small business sites. But if they expire, your site may show security warnings. This can scare away visitors.
It’s important to track DV certificates. Make sure they are renewed on time. Using reminders can help you avoid website problems.
2. Organization Validated (OV) SSL Certificates
OV SSL certificates are more secure than DV. They not only check the domain but also check business information. This makes them more trustworthy.
These are best for growing businesses and public websites. Because the validation takes more time, you must renew them before they expire.
Missing the renewal can cause downtime. It can also affect your brand image. With Remindax, you can get early reminders and stay safe.
3. Extended Validation (EV) SSL Certificates
EV SSL certificates are the highest level of trust. They have a strict verification process. These certificates show your company name in the browser address bar.
Banks, legal firms, and large online stores use EV certificates. These businesses must protect customer data and gain trust.
If an EV certificate expires, it can be a big problem. You may lose customers and money. So, it’s important to track them carefully. Always renew them before they expire.
4. Wildcard SSL Certificates
Wildcard SSL certificates secure a domain and all its subdomains. For example, it can protect “example.com”, “shop.example.com”, and “blog.example.com”.
These are useful for businesses with many subdomains. But if the certificate expires, all subdomains go down.
This can lead to a complete website outage. Monitoring these certificates is very important. Set reminders for renewal to avoid problems.
5. Multi-Domain SSL Certificates (SAN Certificates)
SAN certificates are used to secure many domains with one certificate. For example: “example.com”, “example.org”, and “example.net”.
They are great for companies with different brands or services. But if one domain in the list is missed or expired, the whole certificate becomes invalid.
That’s why monitoring SAN certificates is not simple. You need a tool that tracks all domains. This helps avoid surprise expirations.
6. Unified Communications Certificates (UCC SSL)
UCC SSL certificates were first used for Microsoft Exchange and Office Communications. Now, they also secure different services and domains.
They are helpful in communication systems. But if they expire, your email or chat system may stop working.
To prevent this, monitor these certificates closely. A tool like Remindax can help track them. It gives alerts before the certificate expires, so you can renew it on time.
7. Self-Signed SSL Certificates
Self-signed certificates are not given by official certificate companies. They are created by the company itself. These are mostly used for internal websites or test servers.
They are not for public websites. But even these certificates can expire. If they do, your internal tools may stop working.
Because they are easy to forget, tracking them is very important. Add them to your SSL monitoring system to avoid issues.
8. Code Signing Certificates (Bonus Section)
These are not SSL certificates. But they are used to sign software and apps. They prove that the software comes from a trusted source.
If these certificates expire, users may get warning messages. Your software may not work properly or may be blocked.
It’s important to track code signing certificates too. Keep them safe and always renew them on time.
Conclusion
Every business needs to monitor its SSL certificates. No matter if it’s a DV, OV, EV, Wildcard, or SAN certificate, each one must be tracked.
If any certificate expires, it can break your website. It can also hurt your reputation. You may lose users or money.
That’s why monitoring tools like Remindax are helpful. Remindax sends you alerts before your SSL certificates expire. It keeps your website secure and your business trusted.
Frequently Asked Questions
1. What are the different types of SSL certificates?
SSL certificates are mainly categorized into three types based on validation level:
- Domain Validated (DV SSL): Confirms the ownership of the domain only. Quick to issue and cheapest.
- Organization Validated (OV SSL): Confirms the organization’s identity and domain ownership. Provides higher trust.
- Extended Validation (EV SSL): Offers the highest trust. Validates legal and operational existence of the organization. Shows the green address bar in some browsers.
Additionally, there are Wildcard SSL (covers all subdomains) and Multi-Domain SSL (SAN SSL) (covers multiple domains).
2. Why should businesses monitor SSL certificates?
Monitoring SSL certificates is crucial because:
- Expired certificates can make your website inaccessible.
- Browsers will warn users, harming trust and sales.
- Security breaches can occur if certificates are not renewed on time.
- It ensures compliance with industry standards like PCI-DSS.
3. How do I know when my SSL certificate is expiring?
You can check your SSL certificate’s expiration date by:
- Clicking the padlock icon in the browser and viewing certificate details.
- Using online SSL checker tools.
- Implementing an SSL monitoring tool or software like Remindax, which automatically notifies you before expiry.
4. What is the difference between single-domain, wildcard, and multi-domain SSL certificates?
- Single-Domain SSL: Protects only one domain.
- Wildcard SSL: Protects a domain and all its subdomains (e.g., *.yourdomain.com).
- Multi-Domain SSL (SAN): Protects multiple domains under a single certificate, useful for businesses with multiple websites.
5. Can expired SSL certificates affect SEO and website traffic?
Yes. Expired SSL certificates can:
- Trigger browser warnings, causing visitors to leave immediately.
- Affect Google rankings since HTTPS is a ranking factor.
- Reduce trust, impacting conversions and online sales. Regular monitoring and timely renewal prevent these issues.
