Domain Checker: DNS & SSL

Domain Checker: DNS & SSL

Domain Checker is a domain diagnostic tool designed for developers, website administrators, and network professionals. Quickly analyze domain infrastructure with DNS lookup, SSL certificate inspection, HTTP response analysis, WHOIS information, and email security checks.

Simply enter a domain name to get a clear overview of its DNS configuration, certificate status, website response, and related services.

Key Features:
• DNS Record Lookup

Inspect common DNS records, including:

A
AAAA
CNAME
MX
TXT
NS
SOA
CAA

Verify domain resolution, DNS configuration, and service availability quickly.

• SSL Certificate Inspection

Analyze HTTPS certificates and security information, including:

Certificate issuer
Validity period
Expiration countdown
Subject Alternative Names (SAN)
Fingerprint
Public key information

Identify certificate expiration risks and configuration issues before they impact your services.

• HTTP Response Analysis

Check website availability and HTTP behavior:

HTTP status codes
Response headers
Redirect chains
Server information

Quickly troubleshoot website accessibility and configuration problems.

• WHOIS Domain Information

View public domain registration information:

Registrar
Registration date
Expiration date
Domain status
Name servers

Understand domain ownership and lifecycle information.

• Email Security Check

Analyze domain email-related DNS configuration:

MX records
SPF records
DMARC records

Identify email security configuration issues and improve domain reliability.

• All-in-One Domain Diagnostics

Perform essential domain checks from one clean interface without switching between multiple websites or online tools.

Whether you are troubleshooting DNS resolution, verifying SSL certificates, diagnosing HTTP issues, or reviewing domain configuration, Domain Checker helps you quickly understand your domain infrastructure.

Legal:

Terms of Use:
https://domain.opshome.run/terms/

Apple Standard EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/Privacy Policy:
https://domain.opshome.run/privacy/