BreakHub
Tool details

cc

How cc performs across locations, systems and versions.

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

28 tests

Tests
28
Speed · Median
572.66 KB/s
Latency · Median
468 ms
Stability · Median
94.8%
Lowest speed
36.50 KB/s
Highest speed
6.11 MB/s
Last 90 days

Speed · Median

Daily speed (Median)Daily stability (Median)01.43 MB/s2.86 MB/s0%50%100%IODA (Georgia Tech) · 10/18, 00:00 UTC → 10/18, 01:00 UTC · critical · ping-slash24 · score 4626IODA (Georgia Tech) · 10/05, 02:00 UTC → 10/05, 05:00 UTC · critical · gtr · score 8233IODA (Georgia Tech) · 10/02, 02:30 UTC → 10/02, 05:00 UTC · critical · gtr · score 5853IODA (Georgia Tech) · 10/01, 02:00 UTC → 10/01, 11:00 UTC · critical · gtr · score 23359IODA (Georgia Tech) · 09/25, 02:00 UTC → 09/25, 11:00 UTC · normal · gtr · score 227252026-09-02 · 6 tests · speed 2.08 MB/s · stability 94.4%2026-09-03 · 1 tests · speed 906.09 KB/s · stability 94.4%2026-09-15 · 5 tests · speed 2.86 MB/s · stability 94.4%2026-10-22 · 3 tests · speed 1.86 MB/s · stability 94.4%Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 26
Outage / anomaly (IODA · Radar)

By location

LocationTestsSpeedLatencyStability
Mainland China18854.27 KB/s459 ms94.4%
Other10238.79 KB/s521 ms97.6%

By OS

OSTestsSpeedLatencyStability
Windows141.25 MB/s412 ms94.8%
macOS72.50 MB/s521 ms100.0%
Android7113.29 KB/s802 ms94.4%

By version

VersionTestsSpeedLatencyStability
Unspecified28572.66 KB/s468 ms94.8%

Exit IP quality (measured on visitors' tests)

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

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Recent tests

See all in history
TimeLocationVersionOSExitSpeedLatencyStabilityReachQualitySourceDetails
Mainland China—WindowsSG1.61 MB/s565 ms94.4%—1440pGreatFireView details
Mainland China—WindowsHK1.86 MB/s355 ms100.0%—1440pGreatFireView details
Mainland China—AndroidGB3.16 MB/s705 ms94.4%—1440pGreatFireView details
Other—macOSUS3.30 MB/s627 ms94.4%—2160pGreatFireView details
Other—macOSUS2.86 MB/s521 ms94.4%—1440pGreatFireView details
Other—macOSUS6.11 MB/s437 ms94.4%—2160pGreatFireView details
Other—macOSUS2.50 MB/s472 ms100.0%—1440pGreatFireView details
Other—macOSUS342.86 KB/s603 ms100.0%—720pGreatFireView details
Mainland China—WindowsJP906.09 KB/s397 ms94.4%—1080pGreatFireView details
Mainland China—AndroidSG149.54 KB/s899 ms94.4%—360pGreatFireView details
Mainland China—WindowsUS2.51 MB/s383 ms94.4%—1440pGreatFireView details
Mainland China—WindowsUS2.59 MB/s412 ms88.9%—1440pGreatFireView details
Mainland China—WindowsUS802.45 KB/s459 ms88.9%—1080pGreatFireView details
Mainland China—WindowsHK4.63 MB/s292 ms94.4%—2160pGreatFireView details
Mainland China—WindowsUS1.66 MB/s463 ms100.0%—1440pGreatFireView details
Mainland China—WindowsHK2.10 MB/s1090 ms83.3%—1440pGreatFireView details
Other—WindowsUS125.38 KB/s—95.2%—360pGreatFireView details
Mainland China—WindowsUS38.13 KB/s—95.2%—240pGreatFireView details
Mainland China—AndroidUS89.13 KB/s—95.2%—360pGreatFireView details
Mainland China—AndroidUS127.58 KB/s—95.2%—360pGreatFireView details

Data source: GreatFire Circumvention Centralsynced hourlylast sync