Last updated: September 2026
Who Operates This Site
This website is operated by IPNOVA SYSTEMS LTD, a company registered in Cyprus (Reg. No. HE 479674, VAT CY60202277Z), with its registered office at 36 Aigyptou, 6030 Larnaca, Cyprus. IPNOVA SYSTEMS LTD is the data controller responsible for personal data processed through this site. Company details: ipnova.com.
The short version
Email addresses you check on this site are processed in your browser and are never sent to us. We cannot see, log, store or sell them, because they never leave your device.
On-site checkers
The single and bulk checkers download our domain blocklists to your browser and classify your input locally. The optional MX check queries Cloudflare's public DNS-over-HTTPS resolver (1.1.1.1) directly from your browser; that request goes to Cloudflare, not to us, and contains only the domain. Closing the tab destroys all data.
API
The public API accepts domains. If a full address is sent, the part before the @ is discarded before any processing. Responses carry no-store headers; request inputs are not written to logs. Standard web-server logs record IP addresses and request timing for rate limiting and abuse prevention, retained briefly and automatically rotated.
Analytics and cookies
With your permission, we use Google Analytics to understand aggregate traffic (pages visited, country, device type). It loads only after you choose "Allow analytics" in the cookie banner, and only then sets its cookies (names starting with _ga, kept for up to two years). If you choose "No thanks", or make no choice, no analytics code runs and the site works exactly the same. You can change your mind at any time with "Cookie settings" at the bottom of every page. The legal basis is your consent (GDPR Art. 6(1)(a)). Analytics data is processed by Google Ireland Limited under its data processing terms and may be transferred to the United States under the EU-US Data Privacy Framework. Your cookie choice itself is stored in your browser (localStorage) and never transmitted. No account system, no marketing cookies, no data sales. The theme preference (light/dark) is stored in your browser's localStorage and never transmitted.
Contact
Questions or corrections: [email protected]. EmailDomainCheck.com is operated by IPNOVA SYSTEMS LTD, Cyprus.