How to Diagnose Slow Connections from Your iPhone

You're on WiFi, everything should be fast, but pages load slowly and video buffers. Where's the problem? Your router? Your ISP? The server you're connecting to?

With NetKit Pro's Ping and Traceroute tools, you can find out in under a minute.

Step 1: Ping to confirm the problem

Open NetKit Pro and tap Ping. Start with a reliable target — tap the Google or Cloudflare Quick Target.

Look at the results:

• Low latency (under 30ms on WiFi): Your connection is probably fine. The slowness might be server-side.
• High latency (100ms+): Something is adding delay. Time to dig deeper.
• Packet loss: This is the real killer. Even 5% loss makes everything feel sluggish.

Step 2: Traceroute to find where it's slow

Switch to Traceroute and trace the route to the same host. Each line is a hop — a router between you and the destination.

Here's what to look for:

Hop 1 — your router. If this hop already shows high latency (50ms+), the problem is your local network. Try moving closer to your router or checking for interference.

Hops 2-3 — your ISP. A big latency jump here means your ISP's network is congested. Not much you can do except try a different time or contact your ISP.

Later hops — the internet backbone. If latency only increases at the final hops, the destination server or its network is the bottleneck.

Timeouts (marked with * * *): Some routers don't respond to traceroute probes — this is normal. Only worry if the hops after the timeout also show problems.

Step 3: Compare targets

Ping and traceroute a few different destinations:

• Google (8.8.8.8) — fast, reliable baseline
• Cloudflare (1.1.1.1) — another solid baseline
• The slow service you're actually trying to use

If Google and Cloudflare are fast but your target is slow, the problem is on their end. If everything is slow, the problem is closer to you.

Quick reference

Get NetKit Pro

These tools are part of NetKit Pro, available for €4.99 on the App Store. No ads, no tracking, no subscriptions.