DNS WHOIS analyzer

DNS & WHOIS Checker

Check DNS records and Whois information of domains - ideal for webmasters and IT professionals.

How to analyze a domain

With this professional tool, you can perform comprehensive DNS analysis and WHOIS queries for any domains. The checker provides detailed insights into DNS records, email security configurations, and domain registration data with an integrated health check system. Follow these simple steps:

Enter domain

Enter the domain to check (e.g., example.com). The tool accepts main and subdomains and automatically removes protocol prefixes.

Analyze DNS records

After the query, you get a complete overview of all DNS entries: A-records (IPv4), AAAA-records (IPv6), MX-records (email), NS-records (nameservers), CNAME-records (aliases), and more.

Check email security

The tool automatically analyzes SPF, DMARC, and TXT records to evaluate email security configuration and shows potential vulnerabilities.

Retrieve WHOIS information

Get detailed registration data such as registrar, creation and expiration date, nameservers, and administrative contacts (as far as publicly available).

Activate expert mode

Enable expert mode to display additional technical details such as TTL values, extended metadata, and deeper DNS information.

Use health check

The integrated health check system automatically evaluates DNS configuration and provides recommendations for improvements in categories such as website accessibility, email functionality, and security.

Export results

Copy individual DNS records or complete configurations with the integrated copy function for further use.

Understand interpretation

Use the color-coded ratings (green = optimal, yellow = improvement possible, red = critical problem) and detailed explanations for each configuration.