Domain Lookup
Run a free WHOIS lookup and get a complete domain report — registrar, expiry date, domain age, DNS records, SSL certificate, security headers and a health score. Instant, in your browser, no signup.
What the domain report includes
WHOIS / RDAP
Registrar, registration and expiry dates, domain status, nameservers and abuse contact.
Expiry gauge
Days remaining shown on a color-coded gauge, plus the exact expiry date.
DNS records
A, AAAA, NS, CAA and CNAME records with their TTLs.
SSL certificate
Issuer, validity window, days remaining and expired / self-signed warnings.
Website status
Reachability, HTTP status code, HTTPS redirect and the full redirect chain.
Security headers
HSTS, CSP, X-Frame-Options, X-Content-Type-Options and Referrer-Policy.
Health score
A single 0–100 score across activity, SSL, DNS, reachability and security.
Domain facts
TLD, length, digits and hyphens — handy for SEO and domain investors.
How to read your domain report
Each section answers a different question about the domain. Here’s what to look for and why it matters.
Registrar and ownership
The WHOIS / RDAP section shows which registrar manages the domain, its IANA ID, and the abuse contact. Since GDPR, the registrant’s personal name and email are usually redacted, but the registrar, key dates, status codes and nameservers remain public — enough to know who to contact and how the domain is administered.
Expiry date and domain age
The expiry gauge turns the registry’s expiration date into days remaining, color-coded from green (plenty of time) to red (renew now). The timeline also shows when the domain was first registered, so you can see its age — a strong trust and SEO signal, and a key data point for domain investors valuing a name.
DNS configuration
DNS records reveal how the domain is wired up: A and AAAA records point to the server’s IPv4/IPv6 address, NS records list the authoritative nameservers, CNAME shows aliases, and CAA controls which certificate authorities may issue SSL for the domain. Each record’s TTL tells you how long resolvers cache it.
SSL certificate
The SSL section reads the live certificate served over HTTPS: who issued it, when it was issued, when it expires, and whether it has already expired or is self-signed. A valid certificate from a trusted authority is essential for security and for ranking — browsers warn visitors away from sites without one.
Website and security
The website check confirms the site is reachable, follows the redirect chain, and reports the final HTTP status. The security section then checks response headers — HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options and Referrer-Policy — that protect visitors from common attacks. Missing headers are an easy, high-impact fix.
Health score
All of the above roll up into one 0–100 health score, with a per-factor breakdown. It’s a fast way to judge a domain at a glance: a high score means it’s active, secure, well-configured and not about to expire; a low score points you straight to what needs attention.
Who uses a domain lookup
Developers & sysadmins
Verify DNS, SSL and HTTP configuration in one place before and after a deploy or migration.
SEO professionals
Check domain age, HTTPS, redirects and security headers — all factors that influence search visibility.
Domain investors
Assess a name’s age, expiry window and facts before buying, renewing or backordering.
Business owners
Confirm your domain is active, secure and renewed on time so your website and email never go dark.
Domain lookup FAQ
What is a domain lookup?
A domain lookup (also called a WHOIS lookup) finds everything publicly known about a domain — who registered it, when it expires, how its DNS is set up, whether its SSL is valid, and whether the website is reachable — and combines it into one report with a health score.
How do I check when a domain expires?
Enter the domain above. The report shows the exact expiration date and the number of days remaining on a color-coded gauge, taken from the domain registry via RDAP.
How do I find out who owns a domain?
The WHOIS / RDAP section lists the registrar, registration and expiry dates, status and nameservers. The registrant’s personal details are usually redacted for privacy under GDPR, but the registrar and abuse contact let you reach the responsible party.
How can I check a domain’s age?
The timeline shows the original registration date and calculates the domain’s age in years. Older domains often carry more trust, which is why age matters for SEO and for domain valuation.
What is RDAP and how is it different from WHOIS?
RDAP (Registration Data Access Protocol) is the modern, structured replacement for the old text-based WHOIS protocol. It returns the same registrar, dates, status and nameserver data in a reliable, machine-readable format, which is what this tool uses.
How do I check a domain’s SSL certificate?
The SSL section opens a live HTTPS connection and reads the served certificate — its issuer, validity dates, days remaining, and any expired or self-signed warning — so you can confirm the site is properly secured.
Can I tell if a domain is expired or still active?
Yes. The status at the top of the report shows whether the domain is Active or Expired/Inactive based on registry data, and the expiry gauge shows how long until it lapses.
Is this domain lookup free?
Yes — completely free with no signup. Check any domain and get its full WHOIS, expiry, DNS, SSL and security report instantly.
How fresh is the data?
Data is pulled live from public RDAP, DNS-over-HTTPS and a TLS handshake, then cached briefly to keep results fast. WHOIS/RDAP and DNS changes can take time to propagate after they’re made.
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