Stop Fake Signups Before
They Hit Your Database.
An edge-optimized API that pings live MX records, blocks disposable domains, and autocorrects user typos in real-time.
⚡️
Live DNS/MX Checks
We query the domain's DNS records in real-time to ensure it is actually configured to receive email.
🛑
Burner Domain Block
Automatically rejects 100,000+ known disposable email providers like temp-mail and yopmail.
✨
Typo Autocorrect
Uses Levenshtein distance to detect fat-finger typos (like gmil.com) and suggests the correct provider.
Why Email Validation Regex is Dead
Most developers rely on standard javascript regex (like ^[^\s@]+@[^\s@]+\.[^\s@]+$) to validate forms. Regex only checks syntax, not reality.
A regex will happily accept user@temp-mail.org or john@gmil.com because they look like valid emails. This leads to high bounce rates, ruined sender reputation, and a database full of garbage.
The EmailGuard Solution
- ✓ Checks real-world existence, not just syntax.
- ✓ Blocks role-based emails (admin@, info@).
- ✓ Sub-50ms latency via Cloudflare Workers.
- ✓ Returns a 0-100 Trust Score for your backend.