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BNবাংলা#SSL certificate
Everything about SSL certificates for a website: issuing, renewing and checking them. Articles tagged here explain expiry warnings, certificate chains and domain mismatches. They show how automatic renewal works with common hosts. You will learn what visitors see when a certificate fails. Guides include steps to check your certificate in a minute. Read them before a warning appears in your customers’ browsers.
1 oct 2026 · 8 min de lecturaSSL Private Keys: How to Store, Protect and Replace Them
Your SSL certificate is only as safe as its private key. Learn where keys should live, who may access them, and what to do…
1 oct 2026 · 8 min de lecturaSelf-Signed SSL Certificates: When Are They Acceptable?
Self-signed certificates encrypt traffic but browsers do not trust them. Learn where they are acceptable, where they are risky, and the better free options.
25 sept 2026 · 7 min de lecturaSSL Certificates Are Moving to 47 Days: What Site Owners Must Do
Maximum SSL certificate lifetimes are falling step by step to 47 days by 2029. Learn the timeline, who is affected and how to prepare…
24 sept 2026 · 8 min de lecturaHow to Automate SSL Renewal With Certbot (and Verify It Works)
Set up Certbot so Let's Encrypt certificates renew automatically: timers, reload hooks, DNS challenges behind CDNs, dry runs and checks for silent failures.
22 sept 2026 · 7 min de lecturaWebsite Security Checks for Agencies: A Repeatable Client Process
A practical process for agencies to check client website security: baseline audits, monitoring, clear reports, responsibilities and turning findings into work.
20 sept 2026 · 7 min de lecturaCertificate Transparency Logs: Every Certificate for Your Domain
Every public SSL certificate is recorded in certificate transparency logs. Learn how to search them, what to look for and how to monitor your…
18 sept 2026 · 8 min de lecturaSSL Certificate Revocation: When and How to Revoke a Certificate
Revoking a certificate tells browsers to stop trusting it before it expires. Learn when revocation is needed, how CRLs and OCSP work and how…
17 sept 2026 · 8 min de lecturaSubdomain Takeover: How Forgotten DNS Records Get Hijacked
A DNS record pointing to a service you no longer use can let attackers take over your subdomain. Learn how subdomain takeover works and…
6 sept 2026 · 7 min de lecturaCDN SSL Modes Explained: Flexible vs Full vs Full (Strict)
Flexible, Full and Full (Strict) decide whether traffic between your CDN and server is encrypted and verified. Learn the risks and how to switch…
4 sept 2026 · 8 min de lecturaHow to Get an A Grade in an SSL Server Test: A Practical Guide
A poor SSL test grade usually comes from old protocols, weak ciphers, chain issues or missing HSTS. Learn what the tests check and how…
3 sept 2026 · 8 min de lecturaNET::ERR_CERT_AUTHORITY_INVALID: Causes and How to Fix It
ERR_CERT_AUTHORITY_INVALID means the browser does not trust who issued your certificate. Learn how self-signed certificates, chains and proxies cause it.
2 sept 2026 · 8 min de lecturaERR_SSL_PROTOCOL_ERROR: What It Means and How to Fix It
ERR_SSL_PROTOCOL_ERROR means the browser and server could not complete a secure handshake. Learn the causes on the server and visitor side and how to…