Ensure your V2Ray inbound and outbound configurations allow UDP traffic. Standard DNS queries rely heavily on UDP; if it is blocked, V2Ray falls back to TCP, which introduces noticeable latency.
If a supposedly local website resolves to a foreign IP address, V2Ray catches it, discards the slow/fake result, and re-routes it through the proxy for optimal speed. Step 3: Optimize the Routing Module
The most likely reason for this complaint is the misuse of the feature.
Running CoreDNS locally on your client machine or router, then pointing V2Ray's built-in DNS to localhost:53 , provides professional-grade DNS performance without sacrificing integration.
V2Ray features an internal cache for DNS lookups. Ensure your V2Ray core is updated to utilize built-in caching automatically, which prevents repetitive lookups for the same domain and slashes latency on frequently visited sites. Essential Client-Side Tweaks
"dns": "servers": [
This ensures all DNS lookups are handled using simple, standard UDP queries. On the Advanced DNS Settings tab, ensure FakeIP is turned OFF to avoid another layer of complexity.
By default, V2Ray caches up to 65,535 DNS addresses. Old records are discarded based on LRU (Least Recently Used) algorithm. The cache cleanup interval is configurable, with options ranging from every 10 seconds to every 60 seconds.
Many modern V2Ray setups use fakedns . While this is designed to speed up the connection by providing an immediate "fake" IP address to the browser, a misconfigured fake DNS pool can lead to resolution conflicts or timeouts, making the internet feel "stuck." Geographic Mismatch
If Query time > 100ms consistently, your upstream is slow.
1.1.1.1 or 1.0.0.1 (Fastest global response times).
V2Ray has powerful traffic sniffing capabilities. It intercepts traffic to see if it is HTTP or TLS to extract the real domain name.
This indicates a deadlock where V2Ray cannot reach its upstream DNS servers. The most common cause is the DNS request loop in TUN mode. The solution involves either simplifying DNS configuration to bypass V2Ray processing or creating specific routing rules to exempt DNS traffic from being captured.
Using a domestic DNS server for proxied traffic (or a foreign DNS for local traffic) forces data packets to travel long, inefficient routes.
Ensure your V2Ray inbound and outbound configurations allow UDP traffic. Standard DNS queries rely heavily on UDP; if it is blocked, V2Ray falls back to TCP, which introduces noticeable latency.
If a supposedly local website resolves to a foreign IP address, V2Ray catches it, discards the slow/fake result, and re-routes it through the proxy for optimal speed. Step 3: Optimize the Routing Module
The most likely reason for this complaint is the misuse of the feature.
Running CoreDNS locally on your client machine or router, then pointing V2Ray's built-in DNS to localhost:53 , provides professional-grade DNS performance without sacrificing integration. v2ray slow dns server
V2Ray features an internal cache for DNS lookups. Ensure your V2Ray core is updated to utilize built-in caching automatically, which prevents repetitive lookups for the same domain and slashes latency on frequently visited sites. Essential Client-Side Tweaks
"dns": "servers": [
This ensures all DNS lookups are handled using simple, standard UDP queries. On the Advanced DNS Settings tab, ensure FakeIP is turned OFF to avoid another layer of complexity. Ensure your V2Ray inbound and outbound configurations allow
By default, V2Ray caches up to 65,535 DNS addresses. Old records are discarded based on LRU (Least Recently Used) algorithm. The cache cleanup interval is configurable, with options ranging from every 10 seconds to every 60 seconds.
Many modern V2Ray setups use fakedns . While this is designed to speed up the connection by providing an immediate "fake" IP address to the browser, a misconfigured fake DNS pool can lead to resolution conflicts or timeouts, making the internet feel "stuck." Geographic Mismatch
If Query time > 100ms consistently, your upstream is slow. Step 3: Optimize the Routing Module The most
1.1.1.1 or 1.0.0.1 (Fastest global response times).
V2Ray has powerful traffic sniffing capabilities. It intercepts traffic to see if it is HTTP or TLS to extract the real domain name.
This indicates a deadlock where V2Ray cannot reach its upstream DNS servers. The most common cause is the DNS request loop in TUN mode. The solution involves either simplifying DNS configuration to bypass V2Ray processing or creating specific routing rules to exempt DNS traffic from being captured.
Using a domestic DNS server for proxied traffic (or a foreign DNS for local traffic) forces data packets to travel long, inefficient routes.
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