Secure Sockets Layer (SSL) and TLS logopeterindia.net
Knowledge Hub

SSL and TLS: Web Resources and Links

Resources on SSL and TLS — concepts, standards, certificates, testing tools and configuration guidance.

38 topics•5 categories•Updated October 2026

Concepts & Tutorials

14 entries

How SSL/TLS works.

01Transport Layer Security (Wikipedia)Overview of TLS and its history. 02Transport Layer Security (MDN)MDN guide to TLS. 03What is SSL? (Cloudflare)Cloudflare learning centre. 04What is TLS? (Cloudflare)Cloudflare learning centre. 05How internet security works: TLS, SSL and CA (Opensource.com)Red Hat article. 06SSL Certificates and How They Work (WP Engine)WP Engine guide. 07SSL Certificate (UpGuard)UpGuard explainer. 08SSL Certificate (HostGator)HostGator explainer. 09Understanding SSL certificates (Squarespace)Squarespace help. 10How SSL keeps your website secure (Domain.com)Domain.com article. 11Troubleshooting: I have SSL but my browser says my site is insecurePair Networks knowledge base. 12The Origins of Web Security and the Birth of SSL (Exabeam)History of SSL. 13Security with HTTPS and SSL (Android)Android developer guide. 14Transport Layer Security, TLS/SSL certificate explainedFoleon explainer.

Standards & Guidance

6 entries

Specifications and policy.

15TLS 1.3 (RFC 8446)The current TLS protocol. 16Deprecating SSL 3.0 (RFC 7568)Deprecation of SSL 3.0. 17NIST SP 800-52 Rev. 2Guidelines for selecting and configuring TLS. 18MDN TLS configuration guidePractical TLS implementation guidance. 19Mozilla SSL Configuration GeneratorRecommended server configurations. 20HSTS PreloadSubmit and check HTTP Strict Transport Security preload.

Testing Tools & Software

6 entries

Check and run TLS.

21Qualys SSL Labs Server TestGrade a server's TLS configuration. 22SSL Labs Best PracticesDeployment best practices. 23testssl.shCommand-line TLS testing tool. GitHub lists v3.2.4 as the latest release, from July 2026. 24OpenSSLOpen-source TLS and cryptography toolkit. 25OpenSSL documentationOfficial OpenSSL docs. 26Certificate TransparencyPublic logs of issued certificates.

Certificates & Authorities

5 entries

Getting and managing certificates.

27Let's EncryptFree automated certificate authority. 28Let's Encrypt documentationGetting started and ACME clients. 29DigiCert: What is an SSL certificate?DigiCert explainer. 30SectigoCertificate authority. 31CA/Browser ForumIndustry body for certificate rules.

Related Pages

7 entries

Neighbouring pages on this site.

32Digital CertificationDigital certificates. 33EncryptionEncryption resources. 34CryptographyCryptography resources. 35Software ProtocolsIT protocols. 36Web Services SecurityWeb services and API security. 37Information SecurityOverview of information security. 38IT SecurityIT security hub.

Frequently Asked Questions

What is the difference between SSL and TLS?

SSL is the older protocol; TLS replaced it, and SSL 2.0 and 3.0 are prohibited. People still say “SSL certificate” for certificates used with TLS.

Which version should I use?

TLS 1.3, with TLS 1.2 as the minimum for compatibility; test with SSL Labs and follow Mozilla's configuration generator.

How do I get a certificate?

Free automated certificates from Let's Encrypt, or paid certificates from a CA such as DigiCert or Sectigo.

What replaced the older entries?

Dead or outdated links were removed, redirects updated, and standards and current tools added.

How current is this list?

Links were checked in October 2026. Sites that block automated checks are kept and may need a manual click.