A comprehensive, real-time API for detecting disposable email addresses. Trusted by developers worldwide to maintain data quality and prevent abuse.
Global CDN ensures sub-50ms response times worldwide. Built on Cloudflare Workers for maximum performance.
Continuous automated validation with real-time DNS monitoring ensures our database stays current and accurate.
Advanced MX record validation and multi-source intelligence reduces false positives to near zero.
JSON, TXT, YAML - get your data in the format that works best for your application.
No logging of queries or email addresses. Your users' privacy is our priority.
No API keys, no hidden costs, generous rate limits. Use it however you need, forever.
Try our API right here in your browser. Enter any email or domain to see instant results.
// Enter an email above to see the API responseOne domain per line, perfect for scripts and simple integrations.
Download TXT Loading...GET /api/v2/test@example.com
Check if a specific email address uses a disposable domain.
GET /api/v2/example.com
Check if a domain is marked as disposable.
{"success": true, "isDisposable": false}
Simple JSON response with boolean isDisposable flag.
Disposable email services are designed for temporary, anonymous use without registration. They allow instant email creation, have public inboxes accessible without passwords, and emails typically expire automatically within hours or days.
Legitimate privacy services like ProtonMail, Tutanota, or Apple's Private Relay require account registration, authentication, and provide persistent, private email access. The key difference is accountability vs anonymity - legitimate services have user verification while disposable services are designed for throwaway use.
Our system uses multiple validation layers including explicit lists, DNS checks, and pattern analysis. If you believe there's an error, please report it and we'll investigate.
Our database is updated continuously from multiple sources and validated through DNS checks. Domains are automatically re-validated periodically to ensure accuracy as email services change their infrastructure.
Yes! We provide RFC-compliant DNS-over-HTTPS (DoH) and DNS-over-JSON endpoints that return
sinkhole IP addresses for disposable domains instead of blocking them outright. Configure your
DNS client to use https://throwaway.cloud/dns-query for DoH or
https://throwaway.cloud/resolve for JSON queries. Disposable domains return
10.0.0.1 (IPv4) or fc00::1 (IPv6) while clean domains return NXDOMAIN
to use your fallback DNS.
We provide a reverse zone at throwaway.zone where every active disposable domain
from our list is available as a CNAME subdomain. For example, to check if temp.rest
is disposable, query dig temp.rest.throwaway.zone. If it returns an A record,
the domain is in our disposable list. If it returns NXDOMAIN, it's not flagged as disposable.
This is perfect for DNS-based filtering systems, mail servers, and network security appliances
that need fast, DNS-native lookups without HTTP API calls.