ProtonDNS - Web3 Secure DNS


After a couple of months hard work we're nearing the final stages to finally announce the revolutionary project that will benefit any user of crypto world.

ProtonDNS is currently still in beta stage, until all tests are passed

It's time to introduce you ProtonDNS - first DNS system primarily focused on security & privacy for Web2 and Web3. For those who are not familiar with term DNS, let us explain how it works.

DNS, or the domain name system, is the phonebook of the Internet, connecting web browsers with websites. Every device that is connected to internet needs DNS, although most of them uses automatically assigned DNS from your internet provider.

ProtonDNS website

We need to understand that most of these ISP DNS services doesn't include any protection, meaning that any malicious website can be accessed through browser.

At that point we came to an idea to build first DNS that includes high level of protection for all users. ProtonDNS provides real-time security information to stop malicious activity on the network across all devices. Our threat intelligence system provides different types of protection for all users, here are some features, where access is denied:

  • malicouse websites
  • phishing websites
  • domains that host ransomware
  • annoying ads
  • adult content
  • misspelled domains
  • scam & fake websites
  • most abused TLDs (*.tk, *.ml)
  • fake crypto exchanges
  • fake antivirus domains
  • cryptojacking domains
  • and many more...

Each list is regularly updated and reviewed to avoid false alarms. ProtonDNS supports DNSSEC technology which allows you to verify the authenticity of the stored DNS records with a digital signature. We also implemented DNS over HTTPS (DoH) protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol.

In addition to the entire preparation, we were challenged to build our threat intelligence system to catch malicious domains earlier than classic security solutions. That way we've connected our DNS to artificial intelligence-powered system that automatically tries to catch possible threats across social media platforms. Beside that we integrated DNS Response Policy Zones (RPZ) to ProtonDNS. RPZ zones have an effect to stop malware-infected hosts from reaching their command and control (C&C) servers by blocking DNS resolution to known malicious hosts and sites. This effectively turns a recursive DNS server into a DNS firewall.

Our goal was to create security solution that will be easy to use it. ProtonDNS is softwareless solution - currently supported for all operating systems.

Special thanks to some members of, that helped us to understand deeper their technology.

Alvosec is Block Producer for Proton

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