These graphs show the evolution of default protocol, v6 address types, and average bandwidth in China over time.
They are generated using the data collected by the ipv6-test.com connection test page, and are updated on a monthly basis.
This graph shows the evolution of IPv6 support vs IPv4 for all our connection test.
The numbers are percentages, so we can expect almost 100% of hosts supporting IPv4 with a slow growth for IPv6.
ISP | IPv6 tests count | |
---|---|---|
1. | China Unicom Network | 2,926 |
2. | China Mobile communications corporation | 1,898 |
3. | China Mobile | 1,528 |
4. | China Next Generation Internet CERNET2 | 806 |
5. | Chinanet | 584 |
6. | Cngi-cernet2 | 495 |
7. | Zparknet | 270 |
8. | Cernet | 242 |
9. | Hurricane Electric LLC | 93 |
10. | Baidu | 72 |
11. | Cernet2-tsinghua6 | 62 |
12. | Cstnet | 49 |
13. | CERNET2 IX at Tianjin University | 47 |
14. | DMIT Inc | 35 |
15. | BeiJing-Telecom-UserAddress-lowguaranteed | 34 |
16. | Cstnet-cnnic | 32 |
17. | CERNET2 IX at Shanghai Jiaotong University | 18 |
18. | Kuaishou-kj | 18 |
19. | Hosteons Pte. Ltd | 16 |
20. | CNC Group CHINA169 Henan Province Network | 14 |
21. | China Unicom Henan Province Network | 12 |
22. | Guangzhou NetEase Computer System Co., Ltd. | 8 |
23. | CTM Internet Service | 6 |
24. | China Unicom Anhui Province Network | 6 |
This graph shows the evolution of IPv6 support vs IPv4 for unique users of our connection test.
The numbers are percentages, so we can expect a slow growth towards 50% v4 / 50% v6.
ISP | Unique IPv6 addresses | |
---|---|---|
1. | China Unicom Network | 2,210 |
2. | China Mobile communications corporation | 1,406 |
3. | China Mobile | 1,137 |
4. | China Next Generation Internet CERNET2 | 629 |
5. | Chinanet | 400 |
6. | Cngi-cernet2 | 368 |
7. | Cernet | 178 |
8. | Zparknet | 152 |
9. | Hurricane Electric LLC | 72 |
10. | Cernet2-tsinghua6 | 54 |
11. | Cstnet | 42 |
12. | Baidu | 34 |
13. | CERNET2 IX at Tianjin University | 34 |
14. | Cstnet-cnnic | 28 |
15. | DMIT Inc | 20 |
16. | BeiJing-Telecom-UserAddress-lowguaranteed | 19 |
17. | CERNET2 IX at Shanghai Jiaotong University | 16 |
18. | Kuaishou-kj | 14 |
19. | CNC Group CHINA169 Henan Province Network | 5 |
20. | Guangzhou NetEase Computer System Co., Ltd. | 4 |
21. | China Unicom Anhui Province Network | 4 |
22. | China Unicom Henan Province Network | 4 |
23. | CTM Internet Service | 3 |
24. | Hosteons Pte. Ltd | 1 |
This graph shows the percentage of browsers that default to IPv6 vs. IPv4 when visiting the ipv6-test connection test.
Hopefully, in the not so distant future, the v6 part will grow taller than the v4 one.
This graph shows the percentage of browsers that default to IPv6 vs. IPv4 for users that have both v4 and v6 connectivity.
Usually a system will default to v6 when it's available, but in some cases with tunneled connections, v4 stays the default.
ISP | Test count | IPv4 | IPv4 % | IPv6 | IPv6 % | |
---|---|---|---|---|---|---|
1. | Cstnet | 49 | 5 | 10.2% | 44 | 89.8% |
2. | CERNET2 IX at Shanghai Jiaotong University | 18 | 2 | 11.1% | 16 | 88.9% |
3. | Hurricane Electric LLC | 93 | 12 | 12.9% | 81 | 87.1% |
4. | Cngi-cernet2 | 495 | 106 | 21.4% | 389 | 78.6% |
5. | Cernet | 242 | 52 | 21.5% | 190 | 78.5% |
6. | Cstnet-cnnic | 32 | 7 | 21.9% | 25 | 78.1% |
7. | China Mobile communications corporation | 1,898 | 425 | 22.4% | 1,473 | 77.6% |
8. | China Next Generation Internet CERNET2 | 806 | 181 | 22.5% | 625 | 77.5% |
9. | China Mobile | 1,528 | 347 | 22.7% | 1,181 | 77.3% |
10. | Guangzhou NetEase Computer System Co., Ltd. | 8 | 2 | 25.0% | 6 | 75.0% |
11. | CERNET2 IX at Tianjin University | 47 | 12 | 25.5% | 35 | 74.5% |
12. | Kuaishou-kj | 18 | 5 | 27.8% | 13 | 72.2% |
13. | China Unicom Network | 2,926 | 849 | 29.0% | 2,077 | 71.0% |
14. | Hosteons Pte. Ltd | 16 | 5 | 31.3% | 11 | 68.8% |
15. | Cernet2-tsinghua6 | 62 | 21 | 33.9% | 41 | 66.1% |
16. | Baidu | 72 | 25 | 34.7% | 47 | 65.3% |
17. | Chinanet | 584 | 235 | 40.2% | 349 | 59.8% |
18. | BeiJing-Telecom-UserAddress-lowguaranteed | 34 | 16 | 47.1% | 18 | 52.9% |
19. | CTM Internet Service | 6 | 3 | 50.0% | 3 | 50.0% |
20. | Zparknet | 270 | 152 | 56.3% | 118 | 43.7% |
21. | DMIT Inc | 35 | 24 | 68.6% | 11 | 31.4% |
22. | CNC Group CHINA169 Henan Province Network | 14 | 14 | 100.0% | 0 | 0.0% |
23. | China Unicom Anhui Province Network | 6 | 6 | 100.0% | 0 | 0.0% |
24. | China Unicom Henan Province Network | 12 | 12 | 100.0% | 0 | 0.0% |
This graph illustrates the connection speed gap between IPv4 and IPv6, numbers represent v6 speed as percentage of v4 speed.
The lower IPv6 speeds are often caused by tunneling overhead or insufficient v6 connectivity or peering capacity at ISPs.
ISP | Test count | IPv6 average | |
---|---|---|---|
1. | DMIT Inc | 35 | 19.9 Mbps |
2. | China Mobile | 1,528 | 10.1 Mbps |
3. | China Mobile communications corporation | 1,898 | 7.4 Mbps |
4. | China Unicom Network | 2,926 | 6.0 Mbps |
5. | Chinanet | 584 | 0.9 Mbps |
6. | Kuaishou-kj | 18 | 0.5 Mbps |
7. | China Next Generation Internet CERNET2 | 806 | 0.2 Mbps |
8. | Cstnet-cnnic | 32 | 0.1 Mbps |
9. | Cernet | 242 | 0.1 Mbps |
10. | Cngi-cernet2 | 495 | 0.1 Mbps |
11. | Cstnet | 49 | 0.1 Mbps |
12. | Zparknet | 270 | 0.1 Mbps |
13. | CERNET2 IX at Shanghai Jiaotong University | 18 | 0.1 Mbps |
14. | Cernet2-tsinghua6 | 62 | 0.1 Mbps |
15. | CERNET2 IX at Tianjin University | 47 | 0.0 Mbps |
16. | Baidu | 72 | 0.0 Mbps |
17. | BeiJing-Telecom-UserAddress-lowguaranteed | 34 | 0.0 Mbps |
18. | Hurricane Electric LLC | 93 | 0.0 Mbps |
19. | Hosteons Pte. Ltd | 16 | 0.0 Mbps |
20. | Guangzhou NetEase Computer System Co., Ltd. | 8 | 0.0 Mbps |
21. | CTM Internet Service | 6 | 0.0 Mbps |
22. | CNC Group CHINA169 Henan Province Network | 14 | 0.0 Mbps |
23. | China Unicom Anhui Province Network | 6 | 0.0 Mbps |
24. | China Unicom Henan Province Network | 12 | 0.0 Mbps |