Whois, DNS and website security — free on yan.ua

The service collects public Whois data, a complete list of DNS records, SSL certificate verification, HTTP header analysis (security, cache, CORS), IP geolocation, and website reference technologies — all in one place for quick domain diagnostics.

Why do you need Whois data?

Whois shows registration and expiration dates, registrar, domain statuses, and (if not hidden) contacts. This is useful for checking domain legitimacy, evaluating competitors, and working with transfers.

What exactly will you see?

• Registration: creation, update and expiration dates
• Contacts: registrant, administrative and technical contacts (if available)
• Machinery: name servers, EPP statuses, DNSSEC
• Additionally on yan.ua: DNS, SSL, HTTP headers, TTFB, IP geolocation

Advantages of the tool

• Security: quick domain and header check before contact or deal
• SEO and infrastructure: DNS, SSL and server response in one report
• Convenience: export, browser check history, clear status explanations

How it works

After entering the domain, queries are performed to the appropriate Whois servers and additional checks (DNS, HTTPS, HTTP) are performed. The data is displayed in a structured manner; raw Whois responses can be expanded separately.

Privacy

The tool only processes public information from Whois and open lookups. Do not submit passwords and secret tokens through the form - they are not needed to view Whois.

Why are owner contacts sometimes hidden?

Registrars often hide personal data in accordance with GDPR and their own policies. The Whois response may show a privacy service instead of direct contacts - this is normal practice.