Free email, phone & IP checkers

Run real checks in your browser, no signup needed. Each tool returns a 0–100 risk score with the reasons behind it.

Free Email Checker
Check if an email address is valid for free. Live MX lookup, disposable and throwaway domain detection, role-inbox and typo checks, and a 0–100 risk score.
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Free Phone Number Validator
Check if a phone number is valid in 190+ countries. Get the international format, country, line type (mobile, landline, VoIP) and a 0–100 risk score, free.
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Free IP Lookup
Look up any IPv4 or IPv6 address: country, city, ISP and ASN, plus VPN, proxy, Tor and data-center detection and a 0–100 risk score. Free.
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Stop fake signups before they cost you.

Start with 100 free credits after a quick phone check. Pay only for what you use after that, from $0.010 per lookup.

Get 100 free credits See pricing

No credit card
Credits never expire
Failed lookups aren't charged

VerifyGrid — Email, Phone & IP Validation API VerifyGrid checks emails, phone numbers and IP addresses in one API and returns a 0–100 risk score with the reasons behind it, plus an allow, review or block decision from your own rules. Email checks look up each domain's mail servers live and flag disposable domains, role inboxes and typos. Phone checks validate numbers in 190+ countries and detect line type and VoIP. IP checks return location and network owner and detect VPNs, proxies, Tor exits and data centers. One credit per lookup; credits never expire.

Email validation API

Phone validation API

IP intelligence API

Free email, phone and IP checkers

Guides to preventing fake signups

API documentation