Find the most likely connection problem with independent path, DNS, TCP, TLS, timing and stability checks. Pay once upfront—no subscription, ads or tracking.
• Run a Check — Wi-Fi, DNS and internet checks in one tap
• Deep Check — More evidence and stability samples
• Check a Website — See whether one destination or the wider internet is failing
• Evidence — DNS · TCP · TLS · TTFB · HTTP · Direct IP · IPv4 · IPv6
• Connection looks unstable — Variation
• Check History — Private records stored only on this device
• Apple Watch — Run a Check
• Widget · iPad — Connected · Run a Check
No account, ads, analytics or tracking. Private records stored only on this device.
One upfront App Store purchase. No subscription.
What's new (v1.0.6)
Maintenance update: rebuilt with the latest developer tools so the app stays compatible with the newest version of iOS. No changes to features in this release.