Fix guide

Does changing your DNS reduce ping? No — here is what actually does

Updated 2026-09-20

It is one of the most repeated pieces of gaming advice: switch to a faster DNS and your ping drops. It is also mostly wrong, and the reason it keeps circulating is that it sometimes appears to work.

What DNS does

DNS translates a name like game.example.com into an IP address. It happens before your first packet to the game server, usually in a few milliseconds, and it is cached after that. Once the address is resolved, DNS is out of the picture entirely — it does not choose the route your match traffic takes.

Why it sometimes seems to help

  • A slow DNS resolver delays the initial connection and matchmaking, which feels like lag until it is done.
  • Switching DNS often means restarting your router or device, which clears a different, real problem.
  • Some ISP resolvers redirect or fail on certain domains, so a working resolver removes an error — not latency.

What actually reduces latency

  • Removing wireless retransmission: cable, or 5 GHz with line of sight.
  • Removing uplink saturation: stop background uploads and enable QoS/SQM.
  • Choosing a closer server region, where the game allows it.
  • Fixing double NAT.
  • And only then — if one specific route is consistently worse than another at the same distance — looking at route optimisation on a trial.

The honest bottom line

A DNS change is free and harmless, so try it if you like. Just do not pay for it, and do not let it distract you from the things on the list above, which are the ones that show up in a measurement.

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