Check any email. Instantly.
Is that email real or a burner? Paste it below and find out. 30+ signals run in real time, no account needed.
All checks run in real time. Average response: under 100ms.
Like what you see? Get started for free.
This checker runs the same engine that powers the BigShield API. Sign up and add it to your signup flow, your marketing list, or anywhere you need to know if an email is real.
1,500 free validations every month
Sign up and get 1,500 API validations per month on the free tier. No credit card, no trial expiration. Keep it forever.
Integrate in five minutes
Install the SDK (TypeScript, Python, PHP, Ruby, or Go), add one API call to your signup flow, and start blocking fakes.
No credit card required
The free tier is genuinely free. Create an account, grab an API key, and start validating. Upgrade only if you need more volume.
Clean your existing email list
Upload a CSV of your contacts and get back a scored, cleaned list. Find out how many fakes you are already paying for.
1,500 validations/month free. SDKs for TypeScript, Python, PHP, Ruby, and Go.