network-speed-test

Measure network download speed, upload speed, and latency from the command line. Uses Cloudflare speed test endpoints and public DNS for latency measurements. No external dependencies — pure Python with stdlib only. Use when checking internet speed, diagnosing slow connections, measuring latency/jitter, or benchmarking network performance.

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Install skill "network-speed-test" with this command: npx skills add johnnywang2001/network-speed-test

Network Speed Test

Measure download, upload, and latency with zero dependencies.

Commands

All commands use scripts/speed_test.py.

Run All Tests

python3 scripts/speed_test.py --all
python3 scripts/speed_test.py --all --json

Individual Tests

python3 scripts/speed_test.py --download
python3 scripts/speed_test.py --upload
python3 scripts/speed_test.py --latency

Custom Test Size

python3 scripts/speed_test.py --download --size 25   # 25 MB download test
python3 scripts/speed_test.py --all --size 50         # 50 MB download, 25 MB upload

JSON Output

python3 scripts/speed_test.py --all --json

Returns structured JSON with timestamp, latency stats (avg/min/max/jitter per host), download speed (Mbps), and upload speed (Mbps).

Latency Targets

Tests TCP connection latency to Cloudflare DNS (1.1.1.1), Google DNS (8.8.8.8), and Quad9 (9.9.9.9). Reports average, min, max, and jitter for each.

Notes

  • Download uses Cloudflare speed test endpoint
  • Upload uses Cloudflare speed test endpoint
  • Default test size: 10 MB download, 5 MB upload
  • No API keys or accounts required

Source Transparency

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