SSL Check

Verify SSL certificate status

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SSL Check

Verify SSL certificate status

Understanding SSL Certificates

How to Verify Website Security

Certificate Validation

Verify the authenticity and validity of SSL certificates

Expiration Monitoring

Check certificate expiration dates and get timely alerts

Issuer Verification

Identify and verify certificate issuing authorities

How SSL Checking Works

Our tool performs comprehensive SSL certificate validation

1. Domain Connection
Establishes a secure connection to the target domain

2. Certificate Retrieval
Fetches the SSL certificate information from the server

3. Validation Check
Verifies certificate validity, expiration, and authenticity

4. Security Analysis
Analyzes certificate strength and security features

SSL Security Importance

Why SSL certificates are crucial for website security

Data Encryption: Protects sensitive information during transmission
Authentication: Verifies website identity and prevents phishing
Trust Signals: Builds visitor confidence and improves SEO

Frequently Asked Questions

What is an SSL certificate?

An SSL certificate is a digital certificate that authenticates a website's identity and enables an encrypted connection for secure data transmission.

Why is SSL important?

SSL ensures secure communication between websites and users, protecting sensitive data from interception and maintaining user privacy.

How often should I check SSL certificates?

It's recommended to check SSL certificates monthly and before their expiration date to ensure continuous website security.

What does certificate expiration mean?

When a certificate expires, it's no longer valid for securing connections. This can lead to security warnings and reduced trust from visitors.

What are alternative names?

Alternative names (SANs) are additional domain names covered by the same SSL certificate, allowing secure access to multiple domains.

What makes a certificate trustworthy?

A trustworthy certificate is issued by a recognized Certificate Authority, currently valid, and uses strong encryption standards.

What is the difference between SSL and TLS?

TLS (Transport Layer Security) is the successor to SSL (Secure Sockets Layer). While SSL is still commonly used as a term, modern websites use TLS protocols for security.

What types of SSL certificates are there?

Common types include Domain Validated (DV), Organization Validated (OV), and Extended Validation (EV) certificates, each offering different levels of validation and trust.

How do I fix SSL certificate errors?

Common solutions include renewing expired certificates, ensuring proper installation, fixing mismatched domain names, and updating certificate chains.

What is a self-signed certificate?

A self-signed certificate is created without a Certificate Authority's validation. While useful for testing, it's not recommended for production websites.

What encryption strength is recommended?

Modern SSL certificates should use at least 2048-bit RSA keys or 256-bit ECC keys for adequate security. Stronger encryption is recommended for sensitive data.

How do wildcard certificates work?

Wildcard certificates secure a domain and all its first-level subdomains (e.g., *.example.com covers www.example.com and mail.example.com).

What is certificate transparency?

Certificate transparency is a system for monitoring and auditing SSL certificates, helping detect unauthorized or malicious certificates issued for your domain.

Can I use one certificate for multiple domains?

Yes, using a Multi-Domain SSL Certificate (SAN certificate) or a wildcard certificate, you can secure multiple domains or subdomains with a single certificate.

What happens if my SSL certificate is revoked?

A revoked certificate immediately stops being trusted by browsers, causing security warnings. This usually happens due to compromise or misuse of the certificate.