"dns": "servers": ["1.1.1.1"], "hosts": "domain:google.com": "8.8.8.8" , "clientIp": "1.1.1.1"
: In your VPN app, navigate to the V2Ray plugin section and paste your server config (VMess link). Slow DNS Setup DNS address Name Server (NS) Public Key into their respective fields.
It splits traffic intelligently. International domains go to a fast, secure global resolver, while domestic or local domains use a standard, ultra-fast local resolver ( 8.8.8.8 or your local equivalent).
To understand why DNS slows you down, you must understand how V2Ray handles routing.
Your system queries public DNS servers outside the proxy tunnel. v2ray slow dns server
Paste the specific NS and Public Key you saved from the provider site.
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For real-time applications like online gaming or video conferencing, DNS delays can manifest as jitter and connection instability. Each new connection—such as connecting to a game server or establishing a WebRTC stream—requires DNS resolution, and slow lookups directly impact responsiveness.
[Your Browser] ──> [V2Ray Client] ──(DNS Lookup Request)──> [Slow DNS Server] │ [High Latency / Web Page Lag] <───(Delayed IP Address) <──────────┘ "dns": "servers": ["1
If you have the API enabled, call statsService.GetStats to see DNS cache hits/misses.
Always split your DNS queries so local sites use local DNS servers, and blocked sites use global DNS servers.
If the standard methods aren't enough, consider these advanced approaches.
V2Ray operates by intercepting outbound traffic, routing it through predefined proxies (VMess, Shadowsocks, Trojan, etc.). Before routing can occur, the target domain name must often be resolved to an IP address. If DNS resolution is slow—whether due to high-latency upstream servers, throttling, or packet loss—the entire proxy pipeline stalls. International domains go to a fast, secure global
Domain-based routing rules (e.g., "domain:google.com" → "proxy" ) require resolution before decision. If DNS times out, V2Ray may fall back to a default route or drop the connection.
queryStrategy controls whether V2Ray queries IPv4, IPv6, or both. If you request both ( UseIP ), but your IPv6 path is broken, the resolver will wait for an IPv6 timeout (~5–10 seconds) before falling back to IPv4.
If your V2Ray configuration is not optimized, your device might send DNS queries through your local Internet Service Provider (ISP) instead of the proxy tunnel. If your ISP blocks or hijacks these queries, the request times out or takes several seconds to resolve. This creates a massive delay before your browser even attempts to load the website. 2. Suboptimal Routing (The GeoIP Problem)
"dns": "servers": [ "1.1.1.1", // primary, fast "8.8.8.8", // backup "223.5.5.5" // local ISP (if trusted) ]