APIs & SDKs
StopReg
Real-time email intelligence API to detect disposable, fake, and risky email addresses
- 0community votes
- 7DR by Ahrefs no change since last check
Ahrefs Domain Rating listed 6 Nov 2026, relisted 1 Nov 2026.
An API platform that detects disposable and fake email addresses in real-time to prevent fraudulent signups and improve user data quality.
What it is
StopReg is a disposable email detection and domain intelligence platform built for developers who care about data quality and security. The API validates email domains in real time, identifying disposable providers, masked addresses, and low-trust domains before accounts are created. It maintains a continuously updated domain intelligence engine backed by automated discovery, manual verification, and behavioral analysis. The platform performs comprehensive checks including disposable email detection, role-based detection, public email provider identification, syntax validation, MX record verification, and email forwarding detection. It offers two API endpoints for full email validation or domain-only privacy-first validation, helping teams build trusted platforms and grow with real users while reducing fraud and fake accounts.
Listed capabilities
- Disposable email detection with auto-updated database
- Role-based email detection (admin, support, info, sales addresses)
- Public email provider detection (Gmail, Yahoo, Outlook)
- Email syntax validation
- MX record verification
- Email forwarding and alias service detection
- Domain management and custom enforcement policies
- Real-time API validation with sub-300ms response times
- Two API endpoints: full email validation and domain-only privacy-first
- Web dashboard for manual checks and monitoring
Pricing
Pricing model: Freemium
Free: 200 requests/month. Launch: $20/month (60,000 requests). Scale: $50/month (200,000 requests). Boost: $100/month (500,000 requests). Power: $200/month (1,200,000 requests). Elite: $400/month (2,800,000 requests). Enterprise: Custom requests/month.
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StopReg metrics
| Metric | Value |
|---|---|
| Domain Rating | 7 no change since last check |
| Trust Flow | 7 no change since last check |
| Citation Flow | 26 no change since last check |
| Referring domains | 29 no change since last check |
| External backlinks | 283 no change since last check |
Ahrefs Domain Rating listed 6 Nov 2026, relisted 1 Nov 2026. Listed under topic: Business (6). Majestic listed 1 Nov 2026, relisted 1 Nov 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
StopReg domain listing data
Show the listing data
| Domain age | 2 years |
|---|---|
| Registered | |
| Expires | |
| Registrar | NameCheap, Inc. |
| DNSSEC | Not signed |
StopReg launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 7 to 7 no change since launch 1 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 7 first measured 1 Nov 2026 |
| Referring domains (Majestic) | 29 first measured 1 Nov 2026 |
Day 4 since launch. Next receipt: day 30, 1 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
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Quick answers
What is a disposable email blocker?
A disposable email blocker automatically detects and blocks temporary, fake, or throwaway email addresses from signing up on your website. This helps maintain a clean user database, reduce spam, and protect your platform from abuse.
Why should I block disposable email addresses?
Disposable emails are commonly used for fraud, spam, duplicate account creation, free-trial abuse, and bot signups. Blocking them helps improve lead quality, reduce fraud and abuse, protect free trials, increase conversion accuracy, and improve email deliverability.
Does the API support real-time checking?
Yes, the API validates emails instantly, typically within milliseconds, allowing you to block disposable emails during signup, checkout, or form submission.
Do you store email addresses checked through the API?
No, StopReg does not store full email addresses. For privacy and compliance, only the domain part is checked and all data is discarded immediately.
How does StopReg block temporary email?
StopReg maintains a comprehensive database of over 124,000 disposable email domains. When an email is checked through the API, the platform verifies if the domain is in the database and returns a real-time validation result.
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