Our two pre-handover line checks, open to everyone. No sign-up, nothing stored.
What IP am I on? One view: carrier, ASN, city, time-zone match, WebRTC leak.
Free toolProxy checkerInput one proxy or a list (HTTP, HTTPS, SOCKS4, SOCKS5). Output per line: exit IP, location, ISP, latency. Export working entries.
Free downloadProxy Tester appDesktop app for Windows, macOS and Linux.
Which antidetect browser can I drive from code? Undetectable.io first; its local API creates and launches profiles with the line's SOCKS5 details attached. GoLogin is the second choice, with a cloud API that does the same from any machine.
Free plan. Windows, macOS. Local and cloud profiles. Give each profile its own Mobile Proxies US line.
Get Undetectable.io ↗Free plan: 3 profiles. Windows, macOS, Linux, phone apps. Paste a Mobile Proxies US line as host:port:user:pass.
Get GoLogin ↗Partner links. Compatible: any antidetect browser with HTTP or SOCKS5 proxy support. Recommended: these two.
Test browser fingerprinting, bot detection, DNS and WebRTC leaks on a Mobile Proxies US endpoint with IPFighter's free suite, our customer recommendation:
IP score & lookup ↗ Browser fingerprint ↗ Bot detection ↗ DNS leak test ↗ WebRTC leak test ↗ IPFighter proxy checker ↗
Unlimited rotation; real carrier SIMs; eight live US metros. Endpoints from $2 per two hours, $5 per day.