VPN.AC platforms

Platform Speed Stability
Android - -
Windows 660 kbps 100%

VPN.AC protocols

VPN: Virtual Private Networks come in many forms. Advantages include security and ease of use. VPNs can be used by any software. Turning the VPN on and off can be slow.

VPN.AC performance

by month | year



Number of tests

All Tests

Created At Platform Location Median Speed Stability
2019-08-29 Mac OS 330.79 100.00%
2019-08-14 Windows 660.03 100.00%
2019-06-01 Windows 163.55 100.00%
2019-05-29 Android 290.07 88.10%
2019-05-13 Mac OS 433.97 100.00%
2019-04-22 Windows 120.48 90.48%
2019-04-11 Mac OS 239.80 97.62%
2019-04-04 Mac OS 269.94 100.00%
2019-03-26 Android 109.39 100.00%
2019-03-22 Windows 498.36 100.00%
2019-03-14 Windows 1147.63 100.00%
2019-03-05 Windows 97.23 97.62%
2019-03-04 Windows 405.77 97.62%
2019-03-01 Mac OS 190.04 100.00%
2019-02-20 iOS 350.79 97.62%
2019-02-08 Mac OS 628.85 85.71%
2019-02-03 Android 177.62 80.95%
2019-01-31 Android 180.44 80.95%
2019-01-12 Mac OS 390.41 100.00%
2019-01-12 Android 219.59 80.95%
2018-12-29 Mac OS 1387.75 100.00%
2018-12-28 Android 281.64 100.00%
2018-12-21 iOS 2119.76 100.00%
2018-12-19 Android 160.63 100.00%
2018-11-06 Mac OS 194.55 95.24%
2018-10-21 Windows 664.37 95.24%
2018-10-17 Windows 302.86 100.00%
2018-09-28 Windows 706.49 100.00%
2018-08-28 iOS 288.17 97.62%
2018-08-16 Android 117.02 85.71%
2018-08-05 Windows 620.71 100.00%
2018-06-18 Windows 430.64 100.00%
2018-06-03 Windows 289.93 100.00%
2018-06-03 Windows 292.48 100.00%
2018-05-29 Windows 55.88 92.86%
2018-05-05 Windows 59.07 90.48%
2018-05-04 Windows 565.18 100.00%
2018-04-30 Android 358.86 100.00%
2018-04-14 Mac OS 489.63 100.00%
2018-04-13 iOS 65.02 78.57%
2018-03-03 Windows 280.91 100.00%
2017-12-15 Android 201.82 100.00%
2017-11-13 Android 388.26 100.00%
2017-11-04 Mac OS 746.90 100.00%
2017-10-30 Windows 330.98 100.00%
2017-10-15 Mac OS 433.70 95.24%
2017-10-13 Windows 990.26 90.48%
2017-10-13 Mac OS 188.39 90.48%
2017-10-10 Windows 194.17 90.48%
2017-10-09 Windows 326.46 90.48%
2017-09-12 iOS 203.29 100.00%
2017-08-14 Windows 247.86 100.00%
2017-08-10 Windows 359.49 100.00%
2017-08-08 Windows 676.49 100.00%
2017-08-08 Windows 1030.33 100.00%
2017-08-08 Windows 849.55 100.00%
2017-08-08 Windows 814.16 100.00%
2017-08-08 Windows 610.56 100.00%
2017-07-19 Mac OS 230.65 100.00%
2017-07-05 iOS 189.93 97.62%
2017-07-02 Mac OS 493.57 100.00%
2017-06-17 Windows 657.72 100.00%
2017-06-14 Windows 777.49 100.00%
2017-04-20 Windows 477.32 100.00%
2017-04-09 Windows 358.26 100.00%
2017-03-29 Windows 2467.30 95.24%
2017-03-17 Mac OS 486.49 100.00%
2017-03-10 Mac OS 20.70 83.33%
2017-03-05 Mac OS 127.05 100.00%
2017-03-05 Mac OS 256.65 100.00%
2017-01-23 Windows 1613.35 100.00%
2017-01-18 Windows 300.24 100.00%
2017-01-18 Windows 167.01 100.00%
2017-01-03 Mac OS 62.92 100.00%
2017-01-01 Windows 432.35 100.00%
2016-12-28 Windows 353.79 100.00%
2016-12-16 Windows 214.87 100.00%
2016-12-16 Windows 428.66 100.00%
2016-12-16 Windows 305.06 100.00%
2016-12-16 Windows 424.47 100.00%
2016-12-12 Windows 111.58 100.00%
2016-11-17 Mac OS 236.51 100.00%
2016-11-17 Mac OS 175.46 100.00%

Discuss VPN.AC

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.