Real requests
Download, upload, HTTP latency and DoH run directly from your browser.
Network quality workbench
More than a headline speed number.
Diagnose throughput, responsiveness, congestion, short stalls and DNS with real browser requests. Every result names the node, method, time and limits.
Start from the problem
Choose the smallest complete test
The full test is broad; focused tests use less data and answer a narrower question more clearly.
Flagship test
Open → Internet Speed & Network Quality Test
Measure download, upload, idle and loaded latency, and jitter against a named Cloudflare edge.
Usually 15–30 seconds · up to about 135 MBLatency & Jitter Test
Take 30 HTTP round-trip samples without running a bandwidth-heavy speed test.
About 8–15 seconds · negligible payloadConnection Stability Monitor
Watch repeated HTTP reachability and latency samples for 15, 30 or 60 seconds.
15, 30 or 60 seconds · negligible payloadDNS Lookup & Latency Diagnostics
Resolve A, AAAA, CNAME, MX or TXT records over Cloudflare DoH and time three requests.
Three encrypted queries · usually under 5 secondsVPN vs Direct Network Comparison
Run two user-controlled tests and compare speed, latency and jitter locally without claiming to toggle your VPN.
Two full tests · change the VPN between runsTrust model
Every number needs an explainable source.
No metric substitution
An HTTP failure stays an HTTP failure; without TURN, packet loss remains unavailable.
Comparable reruns
Time, Cloudflare edge, samples and method stay visible beside the result.
Privacy boundary
321Kit records anonymous product events, not speeds, hostnames, DNS answers or IPs.
Make results comparable
Repeat under the same conditions before concluding.
- Pause other trafficStop large downloads, cloud sync and video playback.
- Keep the tab visibleAvoid background timer throttling.
- Note the setupNote Wi-Fi/wired, device, VPN and time of day.
- Repeat at least onceLook for a range and trend, not one magic number.