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Tool details

libcyber

How libcyber performs across locations, systems and versions.

View libcyber on GreatFireSee all in historyFirst seen 09/09/2026, 17:36 UTC
Period
Overall

5 tests

Tests
5
Speed · Median
104.72 KB/s
Latency · Median
974 ms
Stability · Median
100.0%
Lowest speed
50.86 KB/s
Highest speed
5.31 MB/s
Last 90 days

Speed · Median

Daily speed (Median)Daily stability (Median)02.65 MB/s5.31 MB/s0%50%100%IODA (Georgia Tech) · 09/25, 02:00 UTC → 09/25, 11:00 UTC · critical · gtr · score 227252026-08-03 · 1 tests · speed 5.31 MB/s · stability 94.4%2026-08-04 · 1 tests · speed 832.02 KB/s · stability 94.4%Jul 1Jul 16Jul 31Aug 15Aug 30Sep 14Sep 28
Outage / anomaly (IODA · Radar)

By location

LocationTestsSpeedLatencyStability
Mainland China5104.72 KB/s974 ms100.0%

By OS

OSTestsSpeedLatencyStability
iOS365.50 KB/s—100.0%
Windows15.31 MB/s399 ms94.4%
macOS1832.02 KB/s1549 ms94.4%

By version

VersionTestsSpeedLatencyStability
Unspecified5104.72 KB/s974 ms100.0%

Exit IP quality (measured on visitors' tests)

No visitor test with exit-IP quality yet; running a test records it.

Run a test

Recent tests

See all in history
TimeLocationVersionOSExitSpeedLatencyStabilityReachQualitySourceDetails
Mainland China—macOSSG832.02 KB/s1549 ms94.4%—1080pGreatFireView details
Mainland China—WindowsHK5.31 MB/s399 ms94.4%—2160pGreatFireView details
Mainland China—iOSUS65.50 KB/s—100.0%—240pGreatFireView details
Mainland China—iOSUS104.72 KB/s—100.0%—360pGreatFireView details
Mainland China—iOSUS50.86 KB/s—100.0%—240pGreatFireView details

Data source: GreatFire Circumvention Centralsynced hourlylast sync