SSL Checker

Check any SSL/TLS certificate - expiry, issuer, covered domains.

What is an SSL/TLS Certificate?

An SSL/TLS certificate encrypts the connection between a browser and server, ensuring that data cannot be intercepted. Its presence is shown by the 🔒 icon in the address bar.

Certificate Types

Domain Validation

Verifies domain ownership only. Free via Let's Encrypt. Suitable for personal sites and blogs.

Organization Validation

Verifies the organization. Displays the company name. Suitable for business websites.

Extended Validation

Strict identity verification. Highest level of trust. Used by banks and e-commerce platforms.

Let's Encrypt - Free SSL for Everyone

Let's Encrypt provides free DV certificates that auto-renew every 90 days. Used by millions of sites worldwide and supported by all major hosting providers.

Explore all tools

IP & Location

IP & ASN Lookup - Look up information for any IP address or ASN.
IP Ranges by Country - List of IP subnets and ASNs for any country.
IP Calculator - Calculate subnet, CIDR and network address ranges.

DNS

DNS Lookup - Search DNS records for any domain.
DNS Propagation - Check DNS propagation worldwide.
DNS Leak Test - Check if your VPN leaks DNS queries.

Privacy

VPN & Proxy Check - Check if you are using a VPN or proxy.
WebRTC Leak Test - Check if your browser reveals your real IP.
Blacklist Check - Check if your IP is on any blacklist.

Domain

WHOIS Lookup - Domain registration information.
Redirect Checker - Detect and analyze URL redirects.

Network

Port Scanner - Scan open ports on any host.

General Tools

Password Generator - Generate strong and secure passwords.