SecretDNS 3.7.9 Update

Update

• Improved SNI handling for better connection stability on some ISPs
• Added fragmentation extension option for improved compatibility and stability
• Optimized data transmission order for faster connections

• Only specified domains can perform SNI fragmentation.
• Secure your DNS with DNS over HTTPS.
• The ability to bypass SNI eavesdropping (HTTP/HTTPS) is included.
• Fragmentation of only the SNI string to minimize slowdown.
• Minimize access problems through whitelisting.
• It is used by specifying a DNS server through packet bypass without changing Windows settings.
• You can easily check the information of the accessed site.

※ SKT users: Please check Settings – Other Settings – Fragmentation Extension.

• Using Recommended Options lets you make exceptions only for the sites you need, for a smoother experience.

Website

• SecretDNS : https://secretdns.kilho.net

Recommended Options

1. DNS Settings – Encryption (DOH)
2. SNI Settings – Fragmentation (Specify Manually)
3. Specified List – Enter the domains to apply

History

• Version 3.7.8 (2025/10/20)
  • Fixed bugs and improve reliability.
• Version 3.7.7 (2025/10/16)
  • Improved network packet handling for better stability and compatibility.
• Version 3.7.6 (2025/09/14)
  • Fixed update notification text
  • Updated DNSCrypt-proxy: 2.1.14
• Version 3.7.5 (2025/08/13)
  • Fixed missing translations in Secure DNS configuration.

License

• SecretDNS is freeware.
• You can use it freely in any setting, including at work, at home, in government offices, and at school.
• You may freely distribute it anywhere.

Download

Frequently Asked Questions (FAQ)

• Why should I use the recommended options?
  They let you easily use features such as DNS spoofing prevention and SNI eavesdropping prevention, while maintaining both speed and security.
• Does the SNI fragmentation feature reduce speed?
  No. This program fragments only the SNI string, minimizing any impact on speed.
• Do the DNS settings change Windows system settings?
  No. They use the program’s own DNS settings (DNS over HTTPS) without changing Windows settings, making them stable and secure.
• What should I do if I can’t access a particular site?
  You can minimize access issues by configuring a whitelist or a list of specified domains.
• Can I use it without installing it?
  Yes. A portable version is available, so you can use it right away without installation.

Related Links

• Update Notice : https://blog.kilho.net/archives/notice/2940
• iPhone Settings : https://forum.kilho.net/tiptech/1330