SecretDNS 4.1.0 Update

Update

Improved connection stability through refined connection handling and response validation
Reduced initial connection delays for websites using QUIC
Fixed downloads or connection handling stalling while using the proxy on affected systems
Fixed address lookups incorrectly accepting responses to earlier requests
Added an alert when startup settings cannot be changed and prevented incorrect setting status from being displayed

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.

Recommended Options let you make exceptions for only the sites you need, for a smoother experience.

Version 4.0.6 (2026/10/10)
- Changed existing options to reset to defaults once when updating
- Prevented updates from overwriting user-configured DNS lists
Version 4.0.5 (2026/09/15)
- Improved VPN stability with automatic server switching
- Made VPN activity easier to identify in connection history
Version 4.0.4 (2026/09/14)
- Improved the update process and automatic startup reliability
- Redesigned Proxy Mix completely for more stable connections
- Added an easy way to choose and edit websites that use Proxy Mix
- Added saving of Proxy Mix preferences between app launches
- Added options to add and select your preferred DNS servers
- Improved encrypted DNS connectivity in some network environments
- Added domain address support and a new Cloudflare endpoint
- Added clearer guidance for selecting another server when encrypted DNS fails
- Made DNS settings easier to understand and use
- Simplified connection status messages for better clarity
Version 4.0.2 (2026/09/04)
- Fixed intermittent internet interruptions on certain networks
- Improved connection continuity without requiring users to turn off SecretDNS
- Added automatic DNS server switching for a more reliable connection
- Improved website access during temporary DNS errors and traffic spikes
- Added automatic restoration of encrypted connections when the network becomes stable

SecretDNS is freeware.
You can use it freely in any setting, including offices, homes, government agencies, and schools.
You are free to distribute it anywhere.

Why should I use the Recommended Options?
They make it easy to use features such as DNS tampering protection and SNI eavesdropping protection, while maintaining both speed and security.
Does the SNI fragmentation feature slow down connection speeds?
No. This program fragments only the SNI string, minimizing any impact on speed.
Do the DNS settings change Windows system settings?
No. The program uses its own DNS settings (DNS over HTTPS) without changing Windows settings, making it stable and secure.
How can I fix connection problems with a specific site?
You can minimize connection 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.