Player's Guide To Switch Japanese Server Dns Recommended Common Public DNS And Speed Testing Methods

1) Confirm your network type: wired (via bridge) or Wi‑Fi; Switch is mostly Wi‑Fi connected.
2) Decide on the scope of modification: change the DNS on the Switch alone (only affects the host), or on the router (affects the entire network).
3) Back up current settings: Record the original DNS and network configurations for rollback.
4) Pay attention to laws and terms of service: changing DNS does not mean changing regional account, do not use illegal means.

1) Cloudflare: 1.1.1.1 / 1.0.0.1 (Global Anycast, with nodes in Tokyo).
2) Google Public DNS: 8.8.8.8 / 8.8.4.4 (stable, Tokyo node).
3) Quad9: 9.9.9.9 / 149.112.112.112 (security filtering, optional).
4) OpenDNS: 208.67.222.222 / 208.67.220.220 (commercial service, stable).
5) Recommendation: Prioritize Cloudflare or Google as your first choice for accessing Japanese games. If security filtering is required, Quad9 can be used.

1) Enter "System Settings" (gear icon) on the main interface of the host.
2) Scroll down to "Internet" → "Internet Settings" and Switch will search for available networks.
3) Select the Wi‑Fi network you are connected to and select "Change Settings".
4) Find "DNS Settings", the default is "Automatic", change it to "Manual".
5) Enter the preferred DNS (for example, 1.1.1.1) in "Primary DNS" and the secondary DNS (for example, 8.8.8.8) in "Backup DNS".
6) Save and return. It is recommended to restart the host and do another "connection test".

1) Connect to the router management page (usually 192.168.0.1 or 192.168.1.1) and log in.
2) Find the WAN or Internet settings, or DHCP/DNS settings page.
3) Change the DNS provided by the ISP to manual and enter the preferred and backup DNS (such as 1.1.1.1 / 8.8.8.8).
4) Save the settings and restart the router.
5) Reconnect to Wi‑Fi on the Switch (or do a static refresh) to get the new DNS.

1) Windows: Open cmd, use nslookup -debug www.google.com 1.1.1.1 or use the command nslookup www.google.com 1.1.1.1 to see Query time.
2) Windows only: Use GRC’s DNS Benchmark or namebench (can measure the latency and reliability of multiple DNS).
3) macOS/Linux: Use dig @1.1.1.1 www.google.com +stats (to view Query time), or use traceroute to check the route to DNS.
4) Mobile phone: Install "PingTools", "Network Analyzer" and other applications to test DNS query/ICMP response.

1) Test indicators: DNS query latency (the lower the ms, the better), packet loss rate, parsing accuracy rate (no hijacking).
2) Make 20 queries to the candidate DNS in your network environment and record the average response time.
3) Do a game delay test at the same time (Switch’s online game delay or use a PC to connect to the same server for ping) and make a comprehensive judgment.
4) If the DNS path has the lowest delay to the Tokyo node, this DNS will be selected first.

1) Step A: First record the baseline network speed on your PC (speedtest.net or fast.com) and save the results.
2) Step B: Set DNS (Switch or router) one by one, and restart the router and Switch after each DNS change.
3) Step C: Use nslookup/dig on the PC to test and record the DNS response time, and then do a speedtest.
4) Step D: Run "Test Connection" on Switch and enter the game to observe the actual latency in a short period of time.
5) Compare the data and select a set of DNS with the best overall performance.

1) There is no network or resolution failure after changing DNS: Check whether there are any input errors, roll back to the original DNS and verify whether it is restored.
2) DNS cache issue: Restart the router, Switch, or run ipconfig /flushdns on PC (Windows).
3) ISP hijacking or interception: If the resolution is tampered with, you can use encrypted DNS (DoH/DoT) to test on supported devices, but Switch does not support encrypted DNS.
4) If it is still unstable, consider restoring the router to factory settings and gradually reconfiguring the network.

1) Prioritize performance: Choose the DNS with the lowest latency and stability (usually Cloudflare / Google).
2) Privacy first: Choose a DNS that explicitly does not log or has a privacy policy (Cloudflare claims not to use it for marketing).
3) Security filtering: If you want to block malicious domain names, you can choose Quad9 or OpenDNS filtering services.
4) It is best to do the test locally before using it for a long time. The results vary greatly in different regions.

Q: After switching to Japanese node DNS, can the Switch directly connect to Japanese game servers and reduce latency?

Answer: DNS is only responsible for domain name resolution. Changing DNS can sometimes reduce resolution delays, but the actual delay in the game is mainly determined by routing and physical distance. Changing the DNS does not change the physical path to the game server or the ISP's transit node; if you want to stably access Japanese server, give priority to low-latency ISP routing, use relays/accelerators, or choose a game node closer to you.

Q: Switch does not support DoH/DoT, what should I do if I am concerned about privacy?

A: You can configure encrypted DNS on a router that supports DoH/DoT or deploy a local DNS over HTTPS proxy at home (for example, using Pi‑hole + cloudflared). The router/proxy returns local plaintext to the Switch, and encrypted transmission is used between the upstream and the DNS provider, thereby improving privacy without changing the Switch.