Everything below can be read by any website you open — quietly, without asking. Here it is shown only to you, with a plain word on what is fine and what is worth a look.
Asks only biasa.my.id — the same server that already saw your IP when this page opened — to echo what it sees. Nothing is stored.
Asks a public STUN server (stun.l.google.com) which address your browser reaches it from. If it differs from your IP above, a VPN may be leaking.
Your browser will ask for permission first. If you allow it, the coordinates appear here and nowhere else.