SSL Certificate Expiry vs DigiCert Certificate Tools

DigiCert is one of the largest Certificate Authorities in the world, and they offer a suite of tools for managing certificates: CertCentral for enterprise certificate lifecycle management, an online SSL checker, and the DigiCert Certificate Utility for Windows. SSL Certificate Expiry is an independent certificate monitoring tool that watches your certificates regardless of who issued them. One comes from a CA. The other monitors certificates from every CA.

The Quick Version

DigiCert's tools are excellent if you're a DigiCert customer managing DigiCert-issued certificates. SSL Certificate Expiry is CA-agnostic -- it monitors any certificate from any issuer. If all your certificates come from DigiCert, their tools might be all you need. If you use certificates from multiple CAs (and most organizations do), you need a tool that sees everything.

Feature Comparison

DigiCert's Tool Suite

DigiCert offers several tools, each serving a different purpose:

DigiCert SSL Checker is a free online tool similar to SSLShopper or SSL Labs. Enter a domain, see the certificate details. It's quick and useful for one-off checks, but it's not a monitoring tool. No alerts, no scheduled checks.

DigiCert CertCentral is the enterprise certificate lifecycle management platform. It handles certificate ordering, issuance, renewal, and management for DigiCert certificates. It can also discover certificates across your network and has some monitoring capabilities. It's powerful, but it's designed for DigiCert customers managing DigiCert certificates, and it's priced as an enterprise product (custom quotes).

DigiCert Certificate Utility is a Windows desktop application for generating CSRs, installing certificates, and managing the Windows certificate store. It's a local administration tool, not a monitoring solution.

Together, these tools form a strong ecosystem -- if you're a DigiCert customer. They're built around DigiCert's CA infrastructure and work best with DigiCert-issued certificates.

The Multi-CA Problem

Here's the practical challenge: most organizations don't use a single CA. You might have DigiCert certificates for your main domains, Let's Encrypt certificates for development environments, Sectigo certificates inherited from an acquisition, and Google Trust Services certificates from a cloud deployment.

DigiCert's management tools are focused on DigiCert certificates. CertCentral can discover non-DigiCert certificates on your network, but the management workflow is optimized for its own products. If you need to monitor certificates from five different CAs, you'd need to either use CertCentral's discovery features (enterprise pricing) or cobble together monitoring from multiple CA-specific tools.

SSL Certificate Expiry doesn't care who issued your certificate. It checks the certificate your domain is serving, regardless of the CA. Add any domain, get alerts when its certificate is approaching expiry. One tool, all certificates.

Pricing Comparison

DigiCert SSL Checker is free for one-off checks. No monitoring, no alerts.

DigiCert CertCentral is priced by quote for enterprise customers. Pricing depends on certificate volume, features needed, and contract terms. It's not uncommon for CertCentral to cost hundreds or thousands of dollars per month for enterprise deployments.

DigiCert Certificate Utility is free, but it's a local tool, not a monitoring service.

SSL Certificate Expiry offers a free tier for 3 certificates and a Pro plan at $9/month for unlimited certificates.

For organizations that already pay for CertCentral, the monitoring features are included in their enterprise investment. For everyone else, SSL Certificate Expiry provides certificate monitoring at a fraction of the cost.

When to Choose DigiCert Tools

When to Choose SSL Certificate Expiry

Our Honest Take

DigiCert makes excellent tools for DigiCert customers. CertCentral is a genuinely powerful certificate lifecycle management platform, and if your organization is invested in the DigiCert ecosystem, it handles monitoring as part of a much broader capability set. The SSL checker and certificate utility are useful free tools for their specific purposes.

But the certificate landscape has changed. With Let's Encrypt, cloud-managed certificates, and multiple CAs in play, very few organizations have all their certificates from a single provider. When your certificates come from multiple CAs, you need monitoring that works across all of them.

SSL Certificate Expiry fills that gap. It's not trying to replace CertCentral's enterprise features or compete with DigiCert as a CA. It's a focused monitoring tool that watches every certificate you have, regardless of who issued it, and makes sure you know before any of them expire. For most teams, that CA-agnostic approach -- at $9/month instead of enterprise pricing -- is exactly what they need.

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