Domain Info Checker – WHOIS, DNS & SSL Lookup Free Online
Check WHOIS, DNS records, SSL certificate status, and HTTP info for any domain. Instant domain information lookup — free online.
Frequently Asked Questions
It shows domain registration status, registrar name, creation/expiry dates, WHOIS status codes, nameservers, DNS records (A, AAAA, MX, TXT, NS, CNAME), SSL/HTTPS status, HTTP response code, and whether the site is reachable.
WHOIS is a public database that stores information about registered domain names — including who registered it, when it was created, when it expires, and which registrar manages it. This tool uses the RDAP protocol (the modern replacement for WHOIS).
DNS records map domain names to IP addresses and services. A records point to IPv4 addresses, AAAA to IPv6, MX to mail servers, TXT to verification strings, NS to nameservers, and CNAME to aliases.
Some registrars do not publish RDAP data, or the domain may genuinely be unregistered. A domain can also be registered but have privacy protection enabled, which hides registrant details.
Results are cached for 10 minutes. Click Check again after 10 minutes to get fresh data. DNS changes can take up to 48 hours to propagate globally.
Domain lookups query public RDAP and DNS servers. The domain name you enter is sent to these public services. No personal data is stored on our servers.
What is Domain Info Checker?
A domain info checker retrieves publicly available information about a domain name, including WHOIS registration data, DNS records (A, MX, NS, TXT), SSL certificate details, and HTTP response information. This is useful for web developers, SEO professionals, and anyone researching domain ownership or technical configuration.
How to Use Domain Info Checker
- 1Enter the domain name you want to check (e.g., example.com).
- 2Click Check to retrieve domain information.
- 3Review WHOIS data, DNS records, SSL status, and HTTP info in the results.
Key Features
- ✓WHOIS registration data
- ✓DNS records (A, MX, NS, TXT, CNAME)
- ✓SSL certificate status and expiry
- ✓HTTP response headers
- ✓Instant results
Benefits
- →Research domain ownership before purchasing
- →Verify DNS configuration for your own domains
- →Check SSL certificate expiry dates
- →Diagnose DNS propagation issues
Why Use Irreva for Domain Info Checker?
Frequently Asked Questions
What is WHOIS?
WHOIS is a public database that stores registration information for domain names, including the registrant, registrar, registration date, and expiry date.
What DNS records does the tool check?
The tool checks A records (IP address), MX records (mail servers), NS records (nameservers), TXT records (SPF, DKIM, etc.), and CNAME records.
Does this tool work for all domain extensions?
Yes. The tool works for .com, .net, .org, .io, country-code TLDs, and most other domain extensions.
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