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Enter a domain, URL, IP, email, or record and get a focused result without setup.
🔒 Free Tool
📧 Email Blacklist Checker
Detect disposable emails, role-based addresses, and validate deliverability
Analyzing email address...
Low Risk
0
/100
API Endpoint
GET /v1/email/check?email=user@example.com
📊 Bulk Check
Check multiple emails at once (one per line, max 100)
Interactive intelligence tool
Run the check, then ship the workflow
Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.
Review decision-ready signals
Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.
Automate the winning workflow
Use the request and response examples to turn a one-off check into an API call or recipe.
Used by people at amazing companies
What this tool helps you decide
Each page is shaped around a practical operational question, not just a raw lookup.
See the current DNS, registration, security, pricing, or reputation evidence.
Compare the result with related checks so the next move is easier to trust.
Copy examples, open linked tools, or move into API documentation when you need scale.
Trust signals before you integrate
Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.
Uptime
API artifacts
OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.
API keys
Protected access
Authenticated endpoints use API keys with clear credit costs before you call them.
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Active
Example Request
Start from the curl and HTTP samples, then map the parameters into your application code.
Key Features
Email Blacklist Checker
Disposable (or temporary/burner) emails are addresses from services like 10minutemail, guerrillamail, or tempmail that self-destruct after a short period. They're often used to bypass email verification, spam forms, or create fake accounts.
Low Risk
Disposable emails lead to low-quality signups, fake accounts, and abuse. Users with disposable emails have near-zero engagement and often don't complete verification. Blocking them improves your user quality and reduces fraud.
API Endpoint
Yes! Use our API: GET /v1/email/check?email=user@example.com returns a JSON response with all check results and risk scoring. Perfect for signup forms, lead validation, and fraud prevention.
Example Request
GET /v1/email/check?email=user@example.comExample Response
{
"risk_score": 12,
"flags": ["DISPOSABLE"]
}Built from the same API surface
The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.
Frequently Asked Questions
What is a disposable email?
Disposable (or temporary/burner) emails are addresses from services like 10minutemail, guerrillamail, or tempmail that self-destruct after a short period. They're often used to bypass email verification, spam forms, or create fake accounts.
Why should I block disposable emails?
Disposable emails lead to low-quality signups, fake accounts, and abuse. Users with disposable emails have near-zero engagement and often don't complete verification. Blocking them improves your user quality and reduces fraud.
What checks are performed?
We check: (1) Disposable domain matching against 186k+ domains from 5 sources, (2) Role-based address detection (admin@, support@), (3) Free provider detection (gmail, yahoo), (4) MX record validation, and (5) DNS blacklist (DNSBL) status.
How often is the blacklist updated?
Our disposable domain database is updated daily.
Can I integrate this into my app?
Yes! Use our API: GET /v1/email/check?email=user@example.com returns a JSON response with all check results and risk scoring. Perfect for signup forms, lead validation, and fraud prevention.