7 free online tools. No signup, no install. Your files are auto-deleted within 1 hour.
WHOIS domain lookup — who owns this domain? See registrar, creation & expiry dates, namese...
DNS checker & DNS lookup for any domain — nslookup + dig + MX lookup + SPF/DMARC checker i...
Type a name — see which TLDs are available for registration and which are already taken. L...
Verify any email address — RFC 5322 syntax, real MX records on the domain, disposable / te...
Verify any HTTPS certificate — issuer, subject, SANs, validity dates, key size, signature...
Is my website down, or is it down for everyone or just me? Paste a URL — get an instant UP...
What is my IP? Instant lookup of your public IP with location, ISP, ASN, timezone. Also lo...