Ultrasurf website

http://www.wujieliulan.com/home.htm

Ultrasurf platforms

Platform Speed Stability
Android - -
Windows - -

Ultrasurf protocols

Other: Other protocol.

Ultrasurf performance

by month | year

Speed

Stability

Number of tests

All Tests

Created At Platform Location Median Speed Stability
2024-08-17 Windows 81.49 97.62%
2024-07-19 Windows 846.00 95.24%
2024-06-27 Android 196.80 100.00%
2024-03-22 Android 184.71 100.00%
2024-01-31 Android 188.72 100.00%
2023-12-22 Android 1147.96 100.00%
2023-12-22 Android 1160.71 100.00%
2023-12-17 Android 712.09 100.00%
2023-12-14 Android 827.53 100.00%
2023-08-01 iOS 281.25 95.24%
2023-08-01 iOS 222.82 90.48%
2023-08-01 iOS 213.61 92.86%
2023-07-31 Windows 259.72 88.10%
2023-07-31 Android 186.43 85.71%
2023-07-08 Windows 135.79 90.48%
2023-06-07 Linux 90.26 95.24%
2023-05-04 Windows 76.38 100.00%
2023-02-19 Linux 272.05 100.00%
2023-01-21 Android 669.39 92.86%
2022-12-29 Windows 64.99 100.00%
2022-12-08 Android 234.52 100.00%
2022-11-16 Windows 443.59 100.00%
2022-11-12 Windows 399.57 100.00%
2022-11-10 Windows 531.86 100.00%
2022-11-08 Windows 518.99 100.00%
2022-11-07 Windows 437.14 100.00%
2022-11-04 Windows 608.83 100.00%
2022-10-30 Windows 471.21 100.00%
2022-10-25 Windows 216.20 100.00%
2022-10-24 Windows 555.93 100.00%
2022-10-21 Windows 453.40 100.00%
2022-10-19 Windows 390.67 100.00%
2022-10-19 Windows 497.25 100.00%
2022-10-13 Windows 541.55 100.00%
2022-10-11 Windows 204.92 100.00%
2022-10-10 Windows 368.65 100.00%
2022-10-08 Windows 461.29 90.48%
2022-10-06 Windows 206.39 90.48%
2022-09-28 Windows 384.65 100.00%
2022-09-25 Linux 119.13 100.00%
2022-09-18 Windows 132.63 100.00%
2022-09-14 Windows 208.56 100.00%
2022-09-12 Windows 169.68 100.00%
2022-09-11 Windows 273.41 100.00%
2022-09-07 Windows 554.05 100.00%
2022-09-06 Linux 420.69 100.00%
2022-09-02 Windows 415.82 100.00%
2022-08-26 Windows 514.04 100.00%
2022-08-17 Windows 151.57 90.48%
2022-08-06 Linux 589.83 100.00%
2022-07-31 Windows 181.41 100.00%
2022-06-06 Windows 160.86 100.00%
2022-05-27 Windows 194.90 100.00%
2022-05-27 Windows 380.55 100.00%
2022-05-06 Windows 201.49 100.00%
2022-05-01 Windows 244.98 97.62%
2022-04-26 Android 229.33 97.62%
2022-04-21 Windows 205.13 88.10%
2022-03-26 Windows 242.94 100.00%
2022-03-23 Windows 143.17 100.00%
2022-03-15 Windows 240.85 90.48%
2022-03-03 Windows 191.05 100.00%
2022-02-27 Windows 310.30 90.48%
2022-02-25 Windows 279.48 100.00%
2022-02-22 Windows 549.78 100.00%
2022-02-16 Windows 257.21 100.00%
2022-02-14 Windows 222.31 100.00%
2022-02-06 Windows 517.53 100.00%
2022-02-03 Windows 363.29 100.00%
2022-02-03 Windows 373.13 100.00%
2022-01-30 Windows 255.50 100.00%
2022-01-28 Windows 501.80 100.00%
2022-01-28 Windows 153.73 100.00%
2022-01-25 Windows 273.88 100.00%
2022-01-20 Windows 227.52 100.00%
2022-01-17 Windows 343.71 100.00%
2022-01-14 Windows 488.68 100.00%
2022-01-13 Windows 105.55 100.00%
2022-01-09 Windows 461.36 100.00%
2022-01-07 Windows 889.32 100.00%
2022-01-06 Windows 533.68 100.00%
2022-01-05 Windows 479.62 100.00%
2022-01-03 Windows 192.33 100.00%
2022-01-02 Windows 399.75 100.00%
2022-01-01 Windows 202.39 100.00%
2021-12-23 Windows 502.28 100.00%
2021-12-22 Windows 489.64 100.00%
2021-12-17 Android 330.80 85.71%
2021-12-17 Android 372.88 92.86%
2021-12-16 Windows 423.28 100.00%
2021-12-16 Windows 355.16 100.00%
2021-12-15 Windows 174.02 100.00%
2021-11-04 Windows 209.63 100.00%
2021-09-19 Windows 411.19 100.00%
2021-09-06 Windows 508.63 100.00%
2021-07-27 Windows 147.39 90.48%
2021-07-17 Windows 301.03 90.48%
2021-07-14 Windows 391.47 85.71%
2021-06-08 Windows 60.65 88.10%
2021-06-08 Windows 129.63 90.48%
2021-05-28 Windows 388.52 90.48%
2021-05-21 Windows 275.32 85.71%
2021-05-21 Windows 188.70 90.48%
2021-05-21 Windows 221.80 90.48%
2021-05-21 Windows 189.56 90.48%
2021-05-21 Windows 279.70 90.48%
2021-05-12 Windows 170.10 90.48%
2021-04-18 Windows 404.18 90.48%
2021-04-18 Windows 399.57 90.48%
2021-04-17 Windows 489.98 90.48%
2021-04-13 Windows 432.14 90.48%
2021-03-10 Windows 45.90 90.48%
2021-02-17 Windows 147.65 90.48%
2021-02-14 Windows 140.81 90.48%
2020-11-15 Windows 425.01 90.48%
2020-11-14 Windows 461.67 90.48%
2020-11-12 Windows 341.07 90.48%
2020-11-08 Windows 380.36 90.48%
2020-10-31 Windows 129.43 90.48%
2020-10-21 Windows 576.64 90.48%
2020-10-18 Windows 254.56 90.48%
2020-10-11 Windows 533.67 100.00%
2020-10-11 Windows 626.28 100.00%
2020-09-28 Windows 508.53 100.00%
2020-09-24 Windows 598.52 100.00%
2020-09-16 Windows 678.97 100.00%
2020-08-22 Windows 296.35 100.00%
2020-08-19 Windows 281.41 66.67%
2020-08-16 Windows 513.98 100.00%
2020-08-16 Windows 253.36 100.00%
2020-08-16 Windows 534.22 100.00%
2020-08-15 Windows 557.00 100.00%
2020-08-12 Windows 499.76 100.00%
2020-08-12 Windows 433.19 100.00%
2020-08-11 Windows 274.89 100.00%
2020-08-11 Windows 491.63 100.00%
2020-08-11 Windows 476.06 100.00%
2020-08-10 Windows 403.05 100.00%
2020-08-06 Windows 507.48 100.00%
2020-08-06 Windows 507.38 100.00%
2020-08-06 Linux 570.30 100.00%
2020-08-06 Windows 285.79 100.00%
2020-08-06 Windows 472.06 100.00%
2020-08-05 Windows 421.44 100.00%
2020-08-05 Windows 448.32 100.00%
2020-07-15 Windows 528.71 100.00%
2020-07-15 Windows 618.54 100.00%
2020-07-15 Windows 557.85 100.00%
2020-07-14 Mac OS 501.68 100.00%
2020-07-14 Linux 715.49 100.00%
2020-07-13 Linux 607.21 100.00%
2020-07-09 Windows 602.69 100.00%
2020-07-09 Windows 509.75 100.00%
2020-07-08 Windows 569.93 100.00%
2020-07-07 Windows 602.79 100.00%
2020-07-07 Linux 632.16 100.00%
2020-07-05 Windows 1743.92 100.00%
2020-06-29 Windows 543.87 100.00%
2020-06-24 Linux 646.71 100.00%
2020-06-04 Mac OS 310.87 100.00%
2020-06-02 Windows 639.55 100.00%
2020-06-01 Windows 366.60 100.00%
2020-06-01 Mac OS 605.62 100.00%
2020-05-31 Windows 576.44 100.00%
2020-05-30 Windows 358.67 100.00%
2020-05-30 Linux 586.25 100.00%
2020-04-26 Android 577.10 100.00%
2020-04-06 Windows 619.60 100.00%
2020-03-19 Windows 77.46 80.95%
2020-03-18 Mac OS 336.77 100.00%
2020-02-27 Android 179.05 100.00%
2020-02-25 Windows 210.59 100.00%
2020-01-25 Windows 236.69 100.00%
2019-12-30 Windows 196.79 100.00%
2019-11-25 Android 460.71 100.00%
2019-11-17 Windows 198.80 100.00%
2019-10-22 Windows 528.54 92.86%
2019-10-22 Windows 685.23 97.62%
2019-09-17 Android 351.59 100.00%
2019-07-21 Linux 114.57 80.95%
2019-06-28 Windows 303.87 100.00%
2019-06-06 Windows 162.86 100.00%
2019-05-26 Windows 401.26 100.00%
2019-05-21 Windows 274.39 100.00%
2019-05-20 Windows 153.51 100.00%
2019-05-11 Android 300.03 95.24%
2019-05-11 Windows 187.55 100.00%
2019-05-04 Windows 125.32 100.00%
2019-05-04 Windows 155.21 100.00%
2019-04-20 Windows 61.46 95.24%
2019-04-13 Windows 132.43 100.00%
2019-04-11 Android 365.68 100.00%
2019-04-09 Android 38.09 97.62%
2019-04-08 Mac OS 117.79 97.62%
2019-04-07 Windows 324.48 100.00%
2019-04-06 Windows 238.52 97.62%
2019-03-21 Windows 155.70 100.00%
2019-03-13 Windows 304.58 100.00%
2019-03-08 Windows 166.98 66.67%
2019-03-07 Windows 282.28 90.48%
2019-03-06 Windows 584.16 100.00%
2019-03-06 Windows 401.60 100.00%
2019-03-03 Windows 193.64 100.00%
2019-02-16 Windows 220.74 100.00%
2019-01-21 Windows 170.72 100.00%
2019-01-21 Windows 345.10 100.00%
2019-01-11 Windows 234.40 97.62%
2019-01-11 Windows 426.61 100.00%
2019-01-08 Windows 231.63 97.62%
2019-01-06 Windows 221.43 100.00%
2018-12-22 Windows 270.19 97.62%
2018-11-28 Windows 287.12 100.00%
2018-11-17 Windows 285.71 100.00%
2018-11-15 Windows 240.04 90.48%
2018-11-14 Windows 229.86 90.48%
2018-10-14 Windows 110.42 95.24%
2018-09-30 Windows 299.69 100.00%
2018-09-29 Android 498.42 100.00%
2018-09-26 Windows 250.20 100.00%
2018-09-15 Windows 89.47 100.00%
2018-09-02 Windows 361.89 97.62%
2018-08-31 Windows 439.47 100.00%
2018-08-27 Windows 297.06 95.24%
2018-08-27 Windows 172.72 95.24%
2018-08-27 Windows 283.35 95.24%
2018-08-27 Windows 310.40 95.24%
2018-08-27 Windows 332.04 95.24%
2018-08-27 Windows 181.15 95.24%
2018-08-27 Windows 283.28 95.24%
2018-08-18 Android 479.99 95.24%
2018-08-18 Windows 151.43 100.00%
2018-08-14 Windows 140.63 95.24%
2018-08-07 Windows 88.18 97.62%
2018-08-07 Windows 81.63 100.00%
2018-08-04 Android 137.13 83.33%
2018-08-03 Android 241.76 92.86%
2018-08-02 Android 198.38 95.24%
2018-08-02 Android 78.91 95.24%
2018-08-02 Android 126.07 95.24%
2018-08-02 Android 110.60 100.00%
2018-08-02 Android 76.14 85.71%
2018-07-21 Windows 141.33 97.62%
2018-07-21 Windows 114.66 95.24%
2018-07-20 Android 555.10 100.00%
2018-07-14 Windows 193.94 100.00%
2018-07-08 Android 451.83 100.00%
2018-07-07 Windows 140.85 100.00%
2018-07-07 Windows 281.22 100.00%
2018-07-02 Windows 488.70 100.00%
2018-07-02 Windows 289.03 100.00%
2018-06-30 Windows 339.23 95.24%
2018-06-28 Windows 99.55 95.24%
2018-06-27 Windows 206.49 92.86%
2018-06-26 Windows 77.12 80.95%
2018-06-26 Windows 59.52 80.95%
2018-06-22 Windows 129.85 100.00%
2018-06-17 Windows 259.92 100.00%
2018-06-17 Windows 312.52 100.00%
2018-06-14 Windows 213.47 97.62%
2018-06-01 Windows 65.27 33.33%
2018-06-01 Windows 151.16 100.00%
2018-06-01 Windows 103.94 100.00%
2018-06-01 Windows 153.57 100.00%
2018-05-24 Windows 134.24 95.24%
2018-05-14 Windows 379.01 100.00%
2018-04-29 Android 802.93 100.00%
2018-04-18 Android 633.31 100.00%
2018-04-02 Windows 283.70 100.00%
2018-04-02 Windows 188.08 100.00%
2018-03-30 Windows 157.60 100.00%
2018-03-28 Windows 276.57 100.00%
2018-03-23 Windows 407.34 100.00%
2018-03-20 Windows 229.28 100.00%
2018-03-19 Windows 436.45 95.24%
2018-03-17 Android 101.93 95.24%
2018-03-13 Windows 356.13 100.00%
2018-03-08 Windows 339.86 100.00%
2018-03-03 Windows 499.78 95.24%
2018-03-01 Windows 537.97 100.00%
2018-02-26 Windows 226.54 92.86%
2018-02-26 Windows 330.84 95.24%
2018-02-24 Android 47.12 95.24%
2018-02-23 Linux 54.74 69.05%
2018-02-23 Windows 386.62 100.00%
2018-02-22 Windows 282.48 95.24%
2018-02-22 Windows 407.55 92.86%
2018-02-22 Windows 382.18 95.24%
2018-02-22 Windows 334.78 92.86%
2018-02-22 Windows 520.51 95.24%
2018-02-22 Windows 428.00 100.00%
2018-02-22 Windows 342.35 100.00%
2018-02-21 Windows 488.50 100.00%
2018-02-21 Windows 472.78 100.00%
2018-02-12 Windows 553.21 95.24%
2018-02-12 Windows 357.45 100.00%
2018-02-11 Windows 346.69 100.00%
2018-01-31 Windows 223.18 95.24%
2018-01-30 Windows 101.92 100.00%
2018-01-30 Windows 177.80 100.00%
2018-01-27 Windows 232.50 100.00%
2018-01-18 Windows 262.43 100.00%
2018-01-10 Windows 28.31 61.90%
2018-01-07 Windows 99.82 100.00%
2018-01-04 Windows 112.12 97.62%
2018-01-01 Windows 331.84 100.00%
2018-01-01 Windows 268.49 100.00%
2017-12-29 Android 147.48 100.00%
2017-12-29 Windows 142.46 97.62%
2017-12-28 Windows 358.55 100.00%
2017-12-23 Windows 129.93 100.00%
2017-12-21 Windows 93.79 100.00%
2017-12-19 Windows 195.80 100.00%
2017-12-17 Windows 490.31 80.95%
2017-12-15 Windows 226.53 100.00%
2017-12-13 Windows 407.06 100.00%
2017-12-13 Windows 471.19 100.00%
2017-12-12 Windows 206.53 95.24%
2017-12-09 Windows 316.64 95.24%
2017-12-06 Windows 146.61 100.00%
2017-12-06 Windows 81.12 100.00%
2017-12-02 Windows 269.93 92.86%
2017-11-30 Windows 123.18 100.00%
2017-11-29 Windows 209.84 100.00%
2017-11-28 Windows 100.05 100.00%
2017-11-21 Windows 376.22 100.00%
2017-11-19 Windows 221.24 100.00%
2017-11-17 Android 194.56 97.62%
2017-11-17 Windows 279.28 92.86%
2017-11-16 Windows 283.47 100.00%
2017-11-15 Windows 186.46 100.00%
2017-11-14 Windows 80.12 92.86%
2017-11-12 Windows 306.16 97.62%
2017-11-09 Windows 117.98 95.24%
2017-11-07 Windows 69.24 92.86%
2017-11-06 Windows 66.61 90.48%
2017-11-05 Windows 48.44 100.00%
2017-11-03 Windows 540.17 100.00%
2017-11-03 Windows 83.04 88.10%
2017-11-03 Windows 226.47 88.10%
2017-11-03 Windows 74.50 100.00%
2017-11-02 Windows 230.28 97.62%
2017-11-01 Windows 348.26 100.00%
2017-11-01 Windows 267.31 92.86%
2017-10-30 Windows 92.14 100.00%
2017-10-30 Windows 76.45 100.00%
2017-10-30 Windows 64.66 95.24%
2017-10-29 Windows 427.24 100.00%
2017-10-28 Windows 148.11 88.10%
2017-10-28 Windows 211.22 100.00%
2017-10-28 Windows 110.33 97.62%
2017-10-27 Windows 84.95 100.00%
2017-10-24 Windows 110.93 100.00%
2017-10-24 Windows 151.41 100.00%
2017-10-23 Windows 62.50 97.62%
2017-10-23 Windows 63.90 100.00%
2017-10-23 Windows 155.96 100.00%
2017-10-22 Windows 411.71 100.00%
2017-10-22 Windows 323.95 100.00%
2017-10-21 Windows 124.17 80.95%
2017-10-21 Windows 247.27 78.57%
2017-10-19 Windows 228.49 90.48%
2017-10-13 Android 106.39 95.24%
2017-10-02 Windows 236.15 90.48%
2017-10-01 Android 61.51 90.48%
2017-08-20 Linux 192.33 38.10%
2017-08-07 Windows 188.76 100.00%
2017-07-21 Windows 212.39 95.24%
2017-07-16 Windows 78.63 100.00%
2017-07-16 Windows 81.32 97.62%
2017-07-16 Windows 87.27 100.00%
2017-07-16 Windows 76.74 97.62%
2017-07-13 Android 182.35 95.24%
2017-07-13 Android 296.64 95.24%
2017-06-18 Windows 76.48 83.33%
2017-05-19 Windows 45.87 90.48%
2017-05-19 Windows 64.32 95.24%
2017-05-19 Windows 114.72 100.00%
2017-05-05 Windows 195.22 100.00%
2017-04-27 Windows 187.08 95.24%
2017-04-21 Windows 403.61 90.48%
2017-04-13 Windows 260.05 97.62%
2017-04-09 Windows 249.57 100.00%
2017-03-18 Windows 99.50 95.24%
2017-03-17 Windows 216.77 100.00%
2017-03-12 Windows 138.18 95.24%
2017-03-10 Windows 107.35 97.62%
2017-03-09 Windows 98.76 100.00%
2017-01-30 Windows 250.31 100.00%
2017-01-30 Android 213.12 100.00%
2017-01-24 Windows 149.58 95.24%
2017-01-23 Windows 73.08 71.43%
2017-01-23 Windows 197.06 100.00%
2017-01-21 Windows 34.42 100.00%
2017-01-17 Windows 45.52 88.10%
2017-01-17 Windows 42.64 83.33%
2017-01-15 Android 124.42 97.62%
2017-01-15 Android 293.91 88.10%
2017-01-14 Windows 144.87 100.00%
2017-01-11 Windows 122.03 100.00%
2017-01-10 Android 414.47 100.00%
2017-01-10 Windows 546.99 100.00%
2017-01-10 Windows 349.85 100.00%
2017-01-09 Windows 39.08 59.52%
2016-12-29 Windows 69.87 100.00%
2016-12-28 Windows 181.54 97.62%
2016-12-26 Windows 137.59 92.86%
2016-12-26 Windows 132.42 100.00%
2016-12-26 Windows 40.74 88.10%
2016-12-26 Windows 41.81 45.24%
2016-12-26 Windows 124.92 95.24%
2016-12-26 Windows 120.40 97.62%
2016-12-22 Windows 198.57 100.00%
2016-12-22 Android 123.78 95.24%
2016-12-11 Windows 136.63 95.24%
2016-12-09 Android 64.69 92.86%
2016-12-09 Android 333.76 61.90%
2016-12-08 Windows 254.87 100.00%
2016-12-04 Android 234.65 100.00%
2016-12-04 Windows 248.80 100.00%
2016-12-03 Windows 632.16 97.62%
2016-12-03 Windows 451.19 100.00%
2016-12-03 Windows 416.58 100.00%
2016-12-02 Windows 513.37 100.00%
2016-12-02 Windows 335.22 100.00%
2016-12-02 Windows 1174.52 97.62%
2016-11-29 Windows 3042.14 100.00%
2016-11-01 Windows 159.43 100.00%
2016-10-22 Windows 372.38 80.95%
2016-10-16 Windows 478.05 97.62%
2016-10-14 Windows 130.37 100.00%
2016-10-11 Windows 129.29 100.00%
2016-10-11 Windows 100.04 100.00%
2016-10-10 Windows 857.03 100.00%
2016-10-04 Mac OS 1051.49 100.00%
2016-09-27 Android 214.47 100.00%
2016-09-22 Android 250.79 100.00%
2016-09-21 Linux 133.98 100.00%
2016-09-21 Linux 355.72 100.00%
2016-09-21 Linux 162.13 100.00%
2016-09-20 Linux 291.35 100.00%
2016-09-20 Linux 332.54 97.62%
2016-09-19 Linux 280.10 100.00%
2016-09-18 Linux 300.76 100.00%
2016-09-17 Linux 336.54 100.00%
2016-09-16 Linux 318.27 100.00%
2016-09-16 Windows 302.36 100.00%
2016-09-16 Linux 316.78 100.00%
2016-09-16 Linux 214.37 100.00%
2016-09-16 Linux 380.98 100.00%
2016-09-15 Linux 305.85 97.62%
2016-09-15 Linux 168.24 100.00%
2016-09-15 Linux 322.23 90.48%
2016-09-14 Linux 194.05 100.00%
2016-09-14 Linux 222.00 100.00%
2016-09-14 Linux 160.16 100.00%
2016-09-13 Linux 296.88 100.00%
2016-09-13 Linux 330.28 100.00%
2016-09-13 Linux 302.63 100.00%
2016-09-13 Linux 173.97 100.00%
2016-09-13 Linux 272.91 100.00%
2016-09-12 Linux 237.20 100.00%
2016-09-03 Windows 308.11 85.71%
2016-08-29 Windows 中国大陆 山东省 269.55 95.24%
2016-08-27 Android 中国大陆 江苏省 57.90 90.48%
2016-08-27 Android 中国大陆 江苏省 31.11 92.86%
2016-08-22 Windows China (Mainland) 江苏省 151.07 92.86%
2016-08-12 Windows 中国大陆 广东省 173.59 97.62%
2016-08-11 Android China (Mainland) 北京市 134.44 95.24%
2016-07-28 Windows 中国大陆 江苏省 85.15 90.48%
2016-07-28 Windows 中国大陆 江苏省 85.20 92.86%
2016-07-28 Windows 中国大陆 江苏省 141.65 100.00%
2016-07-27 Windows 中国大陆 上海市 119.90 100.00%
2016-07-22 Windows 中国大陆 河南省 137.80 100.00%
2016-07-12 Windows China (Mainland) 上海市 284.22 100.00%
2016-07-10 Windows 中国大陆 浙江省 140.00 100.00%
2016-07-06 Windows 中国大陆 江苏省 263.58 100.00%
2016-07-05 Windows China (Mainland) 四川省 340.00 90.48%
2016-06-27 Windows 中国大陆 48.20 61.90%
2016-06-27 Windows 中国大陆 52.39 66.67%
2016-06-15 Android 中国大陆 黑龙江省 314.94 85.71%
2016-06-03 Android China (Mainland) 山东省 36.83 90.48%

Discuss Ultrasurf

Frequently Asked Questions

Why should I buy my circumvention service on Circumvention Central?

  • You can download the latest Android client without Google Play.
  • You can download and install the latest Windows client to your computer without circumventing.
  • You can use Alipay to buy any service.
  • Bilingual installation guides.
  • Bilingual customer support.
  • Support all of GreatFire's work including FreeBrowser and FreeWeibo.

How do you measure the speed of a circumvention tool?

The speed test that we have developed aims to reflect the real user experience. While a visitor to the site runs a test, in the background, their browser is downloading resources from the ten most popular websites in the world. According to Alexa, these sites are Google, Facebook, YouTube, Baidu, Amazon, Yahoo, Wikipedia, QQ, Twitter and Microsoft Live. The speed reported is simply the size of the file downloaded divided by the time taken to download it. We also verify whether the downloaded resource is complete. If the contents returned are incorrect or if the download fails to complete within 40 seconds, we mark it as failed. This data is then used to calculate our other main indicator - stability.

Other speed tests typically just measure download and upload speed by sending a couple of requests to the speed test server itself. The reported speed is not reflective of the user experience because normal browsing involves frequently sending lots of requests (not downloading or uploading one big file) to many different servers, not just one.

Why do you measure the stability of a circumvention tool?

Stability is typically not tested by other services at all. A healthy internet connection anywhere is supposed to deliver 100% stability, unless someone pulls the cable during the test. But using a circumvention tool in China is different. At any point, the connection can become unstable and/or go down completely. Individual requests may fail depending on the size of the request, the final destination and how they are proxied. Thus comparing service stability is just as important if not more important than comparing speed.

Can I test any circumvention tool on the site?

You can use our speed and stability tests with any circumvention tool, whether it is listed on our site or not. VPN users from around China will be able to test their tool on the site and those results will be added to our data. This data will be available for all to see.

Can I see the inner workings of your tests?

Tech savvy users can inspect how we conduct our tests by reviewing our javascript code.

Does GreatFire.org make money if I subscribe to a circumvention tool on this site?

One of the objectives in launching CC is to generate revenue for GreatFire.org. At the moment GreatFire relies on the kindness of individuals who send us donations and from a host of grant-making organizations around the world. We want to reduce our reliance on these organizations and set GreatFire.org on a path of self-sustainability. Visitors to the CC site will be able to purchase any paid-for tool that we currently test. GreatFire will act as a reseller of these tools in China and as such we will be given a portion of each sale by the VPN providers themselves. Users need not be based in China to purchase a circumvention service.

How does CC compare to other VPN review websites?

There are a host of websites that provide “VPN reviews” and “VPN ratings”. But anybody who has visited those sites can quickly see that they act as referral and marketing sites for a small subset of VPN providers and that most of those services do not work in China.

Where did you find those VPNs?

We used this great list of VPNs put together by That One Privacy Guy. We took that list and recruited a team of testers across China and tested almost every tool to see what works and what does not. It will come as little surprise to those in China to know that a very small number of these tools actually work in China.

Do we think that the authorities will use our website to crackdown on VPNs that work?

It would be very easy to completely block all VPNs if the authorities wanted to. However, we believe that they have not because of the importance of allowing access for businesses and for others. The goal of CC is simply to make it easier for all to find the circumvention tools that work the best.

Your tests tell me that my favorite tool does not work but it’s working great for me, what gives? Your tests tell me that my favorite tool works but it’s not working for me, what gives?

Test results can vary according to location, the service you are using to connect to the internet and your device. As more people use this site to test their circumvention tools, we will accumulate more data and will be able to develop a clearer idea of what is working and what is not.

How do you measure “stability”?

When you test your tool on our site in the background we download a certain number of images. If these images do not download or take more than 40 seconds to download then we consider this to be a failed test of stability and we calculate a percentage based on the number of images we attempted to download during the test.

Circumvention Central / GreatFire.org VPN Terms of Service:

Dear user, to provide a better experience, before purchasing a VPN service please carefully read through our terms:

  1. All the VPN services are provided by the respective VPN provider and not by Circumvention Central.
  2. If when using the VPN service you cannot connect to the service or find the service to be unstable, there can be several causes:
    1. Problems with your device or software.
    2. Problems originating from the VPN provider itself.
    3. The Great Firewall has temporarily or permanently blocked the VPN service.
    In case of (a), our customer service will try to assist you in resolving the problem. In the case of (b) or (c), we will alert the VPN provider of the problem and assist them in resolving it.
  3. We provide test data that helps you find a VPN provider that works well. However, if the VPN provider that you selected still does not work for you, we cannot provide a refund. Before choosing a VPN provider, please carefully review the performance data, user reviews or register a free trial account first (if available).

By purchasing a VPN service, you agree to these terms.