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Tools — Speed test

Internet speed test

A browser-based estimate of your connection: latency, jitter, throughput, IP/ASN/ISP, and a transparent quality grade. Nothing is stored by sufi.my.

01Connection

Download—
Upload—
Latency—
Jitter—

Starting automatically… About 24 MB of test traffic.

02Network

Public IP
Detecting…
IP version
—
IPv4 reachable
—
IPv6 reachable
—
ISP
—
ASN
—
Country
—
City
—

City/country from public geo APIs — coarse only, never precise location.

03This browser

Online
—
Connection hint
—
Hardware threads
—
Device memory
—

04How it's measured

  • Latency: 1 warmup + 8 round-trips to Cloudflare's edge; median reported, warmup discarded. Fewer than 3 successful samples → no claim.
  • Jitter: mean absolute difference between consecutive latency samples (RFC 3550-style).
  • Download: 8 parallel streams × 2 MB (16 MB), total bytes ÷ wall time. Cache-busted; startup transients included conservatively.
  • Upload: one 8 MB generated payload, total bytes ÷ wall time. Discarded by the endpoint; nothing stored.
  • Quality: latency-led grade (excellent < 20 ms, good < 50 ms, fair < 150 ms), capped by download throughput, jitter can only downgrade one step.

Browser-based estimate — not an ISP-grade benchmark. Results describe your connection from this browser.

05Privacy

Runs in your browser. Speed payloads come from Cloudflare's public speed-test endpoints; IP/location lookups use public geo APIs. Nothing is stored by sufi.my.

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Questions

How accurate is this speed test?

It is a browser-based estimate. Download uses 8 parallel 2 MB streams, upload sends one 8 MB payload, and both divide total bytes by wall time. Results describe your connection from this browser to Cloudflare's nearest edge, not an ISP-grade benchmark.

What do ping and jitter mean?

Ping (latency) is the median round-trip time of 8 small requests to Cloudflare's edge, after one warmup request. Jitter is the average difference between consecutive pings. Low jitter matters for video calls and games.

How much data does a test use?

About 24 MB: 16 MB of download and 8 MB of upload. The uploaded payload is generated in your browser and discarded by the endpoint.

Does sufi.my store my results or IP address?

No. The test runs in your browser and sufi.my stores nothing. Speed payloads come from Cloudflare's public speed-test endpoints, and IP, ISP and coarse location come from public geo APIs.

Why is my result slower than my plan?

Wi-Fi signal, other devices on the network, VPNs, browser extensions and the distance to the nearest Cloudflare edge all reduce measured speed. Try a wired connection with other downloads paused.