8-Signal Verification Engine
Every address is run through eight independent checks - syntax, MX, SPF/DKIM/DMARC, disposable domains, blacklists, and domain age - and resolved into one 0-100 trust score. No signup. No API key. Checked locally, on your own server.
Checked locally on your own server by default - your visitors' emails never leave this site unless you turn on the optional cloud lookup.
0 emails verified on this site so far
The Diagnostic Pipeline
Each signal narrows the verdict a little further. Nothing is a black box - every one of these is a real record read directly from the domain, not a guess.
Validates RFC syntax and catches common webmail typos - "gmial.com" → "gmail.com" - with a one-click fix.
Confirms the domain has a live mail server actually willing to accept mail.
Reads the raw authentication records for the domain, not just a pass/fail flag.
Flags throwaway inboxes and domains configured to silently accept anything.
Cross-checks the domain and IP against major public spam blacklists.
A domain registered yesterday scores differently than one that's been live for years.
Flags shared inboxes like info@ or support@ instead of a named person.
Every signal above resolves into one 0-100 number, with a valid / risky / invalid verdict.
The Toolkit
Drop the full checker into a page, or hand a client a single-purpose tool that works entirely on its own.
Full 10-signal check with a 0-100 trust score and one-click typo fixes.
Try it →Paste a document, CSV, or page source and pull out every address in it.
Try it →Confirms a domain can actually receive mail - see every server behind it.
Try it →Shows the actual raw authentication records for a domain - not just pass/fail.
Try it →Flags throwaway and catch-all domains before they land on your list.
Try it →Cross-references a domain, IP, or email against major public spam blacklists.
Try it →Catches malformed addresses and common webmail typos before a bounce happens.
Try it →Search a domain to see its category, industry, and trust score at a glance.
Try it →Prove you own a domain via a one-time email code, then edit its public profile.
Try it →Daily automated SPF, DMARC, BIMI, MX and blacklist checks, with an alert the moment something breaks.
Try it →Guest vs. Registered vs. Premium
Start checking with no account at all - register or upgrade only when you actually need more.
Try it instantly, nothing to sign up for.
Verify your email once - no card required.
For agencies and teams checking at volume.
| Feature | 👤 Guest | ✅ Registered | ⭐ Premium |
|---|---|---|---|
| Email checks | 1, no sign-up | 5, refreshed every 24h | Unlimited |
| Standalone tools (MX, SPF/DKIM/DMARC, Disposable, Blacklist, Syntax, Extractor) | ✓ | ✓ | ✓ |
| Per-IP anonymous daily cap applies | Yes, shared - 10/day | No | No |
| Company Profile directory | Search only | Claim & edit | Claim & edit |
| Bulk (list) checking | – | ✓ | ✓ |
| Referral rewards | – | ✓ | ✓ |
| Payment required | Never | Never | bKash/Nagad/Rocket/Stripe |
Who It's For
Don't know which tool you need yet? Find your team below.
Live
This is the real checker - the same one the shortcode above adds to any page.
Built for teams like these
For Developers & AI Agents
The same 10-signal engine is available as a REST API, documented with a full OpenAPI spec so scripts, no-code tools, and AI coding agents can discover every endpoint on their own - no key needed just to look. A sandbox key lets you build and test against realistic, instant mock responses before you ever touch a live key or your daily quota.
Every route documented and machine-discoverable at /openapi.json.
Give Claude, ChatGPT, or any MCP-speaking agent direct tool access - no copy-pasting results back and forth.
Build against instant mock responses - no daily quota spent, nothing recorded, while you're still testing.
From the Blog
How-to's and explainers on the same signals this tool checks - written to actually answer the question, not just sell the widget.
SPF, DKIM, DMARC ঠিকঠাক সেট করার পরও রেকর্ড ভেঙে যেতে পারে চুপচাপ। ডোমেইনের ইমেইল স্বাস্থ্য নিয়মিত মনিটর করে কীভাবে সমস্যাটা…
Read more →কোনো টাকা খরচ ছাড়াই যেকোনো ইমেইল ঠিকানা আসল কিনা যাচাই করবেন কীভাবে - সাইনআপ, MX লুকআপ কিছুই লাগবে না, শুধু…
Read more →Mailinator বা Guerrilla Mail-এর মতো টেম্পোরারি ইমেইল দেখতে সাধারণ ইমেইলের মতোই লাগে। আসল ও ডিসপোজেবল ইমেইলের মধ্যে পার্থক্য আসলে কোথায়,…
Read more →Free to run, checked locally, live in one shortcode.
