Vysvetlenie SSL/TLS certifikátov
SSL (Secure Sockets Layer) a jeho nástupca TLS (Transport Layer Security) sú bezpečnostné protokoly používané na vytvorenie šifrovaného spojenia medzi webovým serverom a prehliadačom.
Často kladené otázky o SSL
Čo sa stane, ak môj certifikát expiruje?
Používatelia uvidia v prehliadači bezpečnostné varovania a prístup na vašu stránku môže byť zablokovaný. To vedie k strate dôvery a poklesu v SEO rebríčkoch.
Aký typ SSL certifikátu potrebujem?
Pre väčšinu webových stránok postačuje štandardný DV (Domain Validated) certifikát. OV alebo EV certifikáty poskytujú vyššiu dôveryhodnosť pre firemné stránky.
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.