SecretDNS 3.9.3 Update

SecretDNS (3.9.3) has been updated.

• Recommended Options allow for a more comfortable experience by applying exceptions only to the necessary sites.

• Minimizes speed reduction by only fragmenting the SNI strings.
• Only specified domains can utilize SNI fragmentation and DNS features.
• DNS servers can be specified without changing Windows settings.
• Easily check the domains you've accessed.
• Can be used in conjunction with proxy features.
• Can be used without installation.

Homepage

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

Recommended Options

1. DNS Settings – Encryption (DOH)
2. SNI Settings – Fragmentation (Manual)
3. Specified List – Enter domains to bypass

History

• Version 3.9.3 (2026/07/30)
  - Improved compatibility for YouTube and Google video playback
  - Addressed connectivity issues in certain IPv6 network environments
  - Prevented unexpected crashes due to abnormal server responses
  - Enhanced the stability of Chrome settings handling
  
• Version 3.9.2 (2026/07/07)
  - Added new disguised packet options to strengthen responses in blocking environments
  - Improved connection success rates and stability in certain networks
  - Enhanced compatibility across various environments by applying the latest bypass methods
  - Made it easier to toggle the disguised packet feature in settings
  
• Version 3.9.1 (2026/06/12)
  - Applied fragmentation extension in all internet environments, including KT internet users
  - Changed to have the fragmentation extension feature enabled by default upon new installation
  
• Version 3.9.0 (2026/05/23)
  - Addressed execution and display issues caused by certain security programs like nProtect, Fasoo, and MarkAny
  - Removed loading indicators that could conflict with certain security programs
  - Improved stability for execution in environments with known security program errors
  
• Version 3.8.9 (2026/04/28)
  - Improved shutdown and restart issues faced by certain user environments
  - Strengthened responses to delays and exceptions seen in specific PCs
  - Enhanced overall stability and operational reliability
  

Related Links

• Update Guide: https://kilho.net/archives/notice/2940
• iPhone Bypass: https://gnu.kilho.net/tiptech/1330

License

• SecretDNS is Freeware.
• It can be freely used in any settings such as companies, homes, public offices, or schools.
• It can be freely distributed anywhere.

Download

• Download from Kilho.net
• Download for Android

Frequently Asked Questions (FAQ)

• Why is it good to use the recommended options?
  They allow easy access to features like DNS spoofing prevention and SNI eavesdropping bypass while ensuring both speed and security.
• Does the SNI fragmentation feature reduce speed?
  No, this program only fragments the SNI strings to minimize speed reduction.
• Does the DNS setting change Windows system settings?
  No, it uses its own DNS settings (DNS over HTTPS) without changing Windows settings, ensuring stability and security.
• What should I do if a specific site cannot be accessed?
  You can minimize access issues by setting a whitelist or a list of designated domains.
• Can it be used without installation?
  Yes, there is a portable version available that can be used immediately without any installation process.