This server can be used with SSLoth to spoof the cbvc.cdn.nintendo.net endpoint and bypass the browser update check that prevents using the browsers on firmware versions < 11.14.
A public server is available. To bypass the update check, you need to edit your 3DS network settings and set your DNS to 54.38.133.70.
When you open the browsers, they send a GET request to cbvc.cdn.nintendo.net to check whether an update is available or not. If the response is not 0 (usually they reply with 99999 when an update is needed), the browser pops a message up saying you need to update. With SSLoth we can spoof the server and always send 0 as a response. Thus, we bypass the update requirement.