Razumijevanje SSL/TLS certifikata
SSL (Secure Sockets Layer) i njegov nasljednik TLS (Transport Layer Security) su sigurnosni protokoli koji se koriste za uspostavljanje šifrirane veze između web poslužitelja i preglednika.
Česta pitanja o SSL-u
Što se događa ako moj certifikat istekne?
Korisnici će vidjeti sigurnosna upozorenja u svom pregledniku, a pristup vašoj web stranici može biti blokiran. To dovodi do gubitka povjerenja i pada SEO rangiranja.
Koju vrstu SSL certifikata trebam?
Za većinu web stranica dovoljan je standardni DV (Domain Validated) certifikat. OV ili EV certifikati pružaju veće povjerenje za korporativne stranice.
An SSL Certificate Checker is an online tool that verifies the validity, expiration date, issuer, and configuration of SSL/TLS certificates installed on web servers. It helps identify security vulnerabilities and certificate misconfigurations.
Key Facts
- Over 95% of web traffic is now encrypted with HTTPS
- Google uses HTTPS as a ranking signal since 2014
- Let's Encrypt has issued over 3 billion free certificates
- TLS 1.3 reduces handshake time by 33% compared to TLS 1.2
Frequently Asked Questions
What is an SSL certificate?
An SSL certificate is a digital certificate that authenticates a website identity and enables encrypted connection between a web server and browser.
How do I know if my SSL certificate is valid?
Use this SSL Checker tool. A valid certificate shows green status, future expiration date, trusted CA issuer, and TLS 1.2+ protocol.
What happens when an SSL certificate expires?
Browsers display security warnings, your site may become inaccessible, SEO rankings drop, and customer trust is lost.
What is the difference between SSL and TLS?
TLS is the successor to SSL. Modern websites use TLS 1.2 or 1.3. TLS offers stronger security and better performance.
Do I need an SSL certificate?
Yes. Chrome marks HTTP sites as Not Secure. SSL is essential for SEO, trust, data protection, and GDPR compliance. Free certificates available from Let's Encrypt.