This guide provides a basic setup. V2Ray offers extensive customization options and supports various transport protocols, encryption methods, and more. For advanced configurations, refer to the official V2Ray documentation .
= DNS lookups used by V2Ray (system resolver, DNS proxy, or remote DNS) are taking too long or timing out, causing slow initial connections, hanging websites, or high latency for apps behind V2Ray.
To fix a slow DNS server in V2Ray, you need to refine your dns object in the configuration file ( config.json ). Step A: Use Strategic Upstream Servers
Many users configure V2Ray to use public resolvers like 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare). These servers are fast globally, but some networks or censorship firewalls deliberately throttle or intercept traffic to these IPs. The result is artificially delayed or dropped DNS packets.
To resolve these issues, a tiered DNS strategy is required. The most effective approach is to implement "Split DNS" within the V2Ray configuration. This involves routing domestic traffic to local, fast DNS providers while routing international or blocked traffic to secure, remote resolvers. By keeping local queries within the local infrastructure, users eliminate unnecessary latency for everyday tasks. Additionally, utilizing the "fakedns" feature in V2Ray can drastically improve perceived speed. Fake DNS allows V2Ray to provide an immediate, "fake" IP address to the browser, deferring the actual resolution until the data packets reach the proxy server. This removes the DNS wait time from the user's immediate experience.