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Guides that make the SSL world easy to understand. Everything you need to know, from certificate selection to domain validation.
Getting-started guides
GUIDE
What is SSL/TLS, and what does it protect?
Get to know the HTTPS connection, certificates and the foundation of digital trust.
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DV, OV or EV: which validation is right for you?
Compare validation levels based on your needs.
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Complete domain validation step by step
A practical look at DNS, file and email validation methods.
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Related guides
Free vs Paid SSL Certificates: What's Actually Different
Free and paid SSL use the same encryption — the real differences are validation level, lifetime, and support. Here's how to choose between Let's Encrypt and a paid certificate.
SSL Certificate Validity Is Shrinking: The 200-Day, 100-Day and 47-Day Timeline
SSL certificate validity is shrinking in stages: 200 days from 2026, 100 from 2027, 47 from 2029. Here's the CA/Browser Forum timeline and how website owners, hosting providers and resellers should prepare.
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