Free tools
Check anything. No account needed.
The same checks the API runs, one at a time, free. When you need them in your code, get an API key.
Disposable email checker
Free disposable email checker. Paste an address or domain to see if it's a temporary, throwaway inbox (Mailinator, 10 Minute Mail, Guerrilla Mail and thousands more).
emailEmail address checker
Free email address checker. Validates syntax, catches typos like gmial.com, checks the domain's mail servers, and flags disposable, role and brand-new-domain addresses.
ipIP lookup
Free IP address lookup. See the country, city and network owner of any IPv4 or IPv6 address, and whether it's a datacenter, VPN network, privacy relay or Tor exit node.
ipVPN & proxy detector
Free VPN and proxy detector. Find out if an IP address belongs to a datacenter, a VPN-heavy network, a privacy relay or a Tor exit node.
phonePhone number validator
Free phone number validator for every country. Checks if a number is real, formats it as E.164, and shows its line type (mobile, landline, VoIP, toll-free) and original carrier.
domainDomain age checker
Free domain age checker. See when a domain was registered, its registrar, whether it receives email, and whether it publishes SPF and DMARC.
domainMX lookup
Free MX lookup. List a domain's mail servers in priority order and check whether it publishes SPF and DMARC, or refuses mail with a null MX.
signupSignup risk checker
Free signup risk checker. Combine an email, IP address and phone number into one score and verdict (admit, review, refuse) with plain-English reasons.