SecretDNS 4.0.0 Update

The SecretDNS (4.0.0) has been updated.

• By using the Recommended Options, you can enjoy a smoother experience by allowing exceptions for only the necessary sites.

• Only the SNI strings are fragmented to minimize speed loss.
• Only designated domains can perform SNI fragmentation and DNS functions.
• Use the DNS server without changing Windows settings.
• You can easily check the domains you have accessed.
• It can be used in conjunction with proxy functions.
• Usage is available without installation.

Homepage

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

Recommended Options

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

History

• Version 4.0.0 (2026/08/24)
  - Improved to directly handle DNS without separate programs, enhancing connection speed, stability, and privacy protection.
  - Newly applied encrypted DNS connections for safer internet usage.
  - Separated DNS and site access settings to support more consistent connections in various network environments.
  - Enhanced the access history screen for easier verification of DNS and site-specific results.
  - Fixed issues where DNS responses might fail and connections drop in certain network environments.
  - Resolved stability issues that could intermittently occur during quick program startup or shutdown.
  - Fixed connection issues that could arise in proxy usage environments and program startup failures.
  - Addressed the phenomenon where certain records remained or connection results were incorrectly displayed when access history was off.
  - Optimized the program by removing unnecessary DNS-related settings and functions.
  
• Version 3.9.3 (2026/07/30)
  - Improved compatibility with YouTube and Google video playback.
  - Addressed connection issues occurring in some IPv6 network environments.
  - Prevented unexpected exits caused by abnormal server responses.
  - Enhanced stability in handling Chrome settings.
  
• Version 3.9.2 (2026/07/07)
  - Added new disguise packet options to strengthen responses to blocking environments.
  - Improved connection success rates and stability in certain networks.
  - Enhanced compatibility in various environments with the latest bypass methods.
  - Added an option in the settings to easily turn the disguise packet function on and off.
  
• Version 3.9.1 (2026/06/12)
  - Extended fragmentation functionality to all internet environments, including KT internet users.
  - Changed the fragmentation extension function to be enabled by default during new installations.
  
• Version 3.9.0 (2026/05/23)
  - Addressed execution and display issues due to errors in certain security programs like nProtect, Fasoo, and MarkAny.
  - Removed loading displays that could conflict with certain security program errors.
  - Enhanced stability for execution in environments with security program errors.
  

Related Links

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

License

• SecretDNS is Freeware.
• You can use it anywhere without space restrictions such as at home, 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 recommended options?
  They allow for easy use of features like DNS tampering prevention and SNI eavesdropping bypass while ensuring both speed and security.
• Does the SNI fragmentation feature lower speed?
  No. This program minimizes speed loss by only fragmenting SNI strings.
• Does the DNS setting change the Windows system settings?
  No. It uses its own DNS settings (DNS over HTTPS) without changing Windows settings, making it stable and secure.
• What can I do if a specific site won't connect?
  You can minimize access issues by setting up a whitelist or designated domain list.
• Can I use it without installation?
  Yes. There is a no-install version available, so you can use it right away without the installation process.