V2ray Slow Dns Server ((new)) Jun 2026
If you're using GUI clients like v2rayA or v2rayNG, check for DNS optimization features built into the client. v2rayA offers five anti-pollution modes, including DNS Forward (queries through proxy) and DoH (DNS over HTTPS) options. Earlier versions had known issues with all-DoH configurations causing slow lookups, but these have since been fixed.
When V2Ray's built-in DNS is not properly configured, DNS queries may "leak" outside your encrypted tunnel, using your local system DNS resolver instead. This is a serious problem for both performance and privacy.
If your V2Ray config points to a DNS server that is geographically far from your VPS, you’re adding a massive round-trip time. For example, using a US-based DNS server on a Singapore-based V2Ray node is a recipe for high latency. 3. How to Optimize Your V2Ray DNS
A specific domain address designated for DNS tunneling. Public Key: A cryptographic key used to secure the tunnel. v2ray slow dns server
Slow DNS is inherently slower than other protocols because it tunnels data through small DNS queries. Switch DNS Resolvers
Users and administrators must account for significant performance trade-offs when employing DNS-based transport methods.
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bash -c "$(curl -L https://github.com/v2ray/v2ray-linux/releases/download/4.45.0/install.sh)"
"dns": "hosts": "dns.google": "8.8.8.8", "://example.com": "1.2.3.4" , "servers": [ "address": "https://1.1.1", "domains": [ "geosite:geolocation-!cn" ] , "address": "8.8.8.8", "port": 53, "domains": [ "geosite:cn" ] , "localhost" ] Use code with caution. Why this configuration speeds up your connection:
If your client settings are perfect but the connection remains slow, the issue might lie on your VPS (Virtual Private Server). When V2Ray's built-in DNS is not properly configured,
: Requests for local sites ( geosite:cn ) instantly hit a ultra-fast local DNS server ( 223.5.5.5 ). Foreign or blocked sites route through a secure public DNS ( 1.1.1.1 ). Step 2: Configure Routing Rules for DNS
"routing": "domainStrategy": "IPOnDemand", "rules": [ "type": "field", "inboundTag": [ "dns-in" ], "outboundTag": "direct" , "type": "field", "outboundTag": "direct", "domain": [ "geosite:cn" ] , "type": "field", "outboundTag": "proxy", "domain": [ "geosite:geolocation-!cn" ] ] Use code with caution.
Configure V2Ray to use DNS over HTTPS (no UDP throttling):
