TCP slow start — normal in first 3 seconds
ISP congestion — 7-10 PM peak hours
WiFi interference — channels overlapping
Background apps consuming bandwidth
Stable needle = healthy connection ✅
Speedometer: visual real-time gauge — great for seeing fluctuations
Speed Test: precise measurement — download + upload + ping + jitter + packet loss
WiFi speedometer: 30-60% LOWER than real speed
Ethernet speedometer: true connection speed
Test wired first. If wired is slow — it's your ISP. If only WiFi is slow — it's your wireless setup.
Live gauge needle + precise results in 15 seconds. Free, no signup.