CAT can get the page performance duration and network information in different ISP environments and display the top five slowest ISPs. The following are supported IDC testing nodes in different regions in the Chinese mainland.
Provincial Administrative Region | Region | ISP |
Beijing | Beijing | China Telecom |
| | China Unicom |
| | China Mobile Tietong |
| | China Mobile |
Tianjin | Tianjin | China Telecom |
| | China Unicom |
| | China Mobile |
Hebei | Baoding | China Telecom |
| | China Unicom |
| Qinhuangdao | China Telecom |
| Shijiazhuang | China Telecom |
| | China Unicom |
| | China Mobile |
| Tangshan | China Unicom |
Shanxi | Taiyuan | China Telecom |
| | China Unicom |
Inner Mongolia | Hohhot | China Telecom |
| | China Unicom |
| | China Mobile |
Liaoning | Shenyang | China Telecom |
| | China Unicom |
| | China Mobile |
Jilin | Changchun | China Telecom |
| | China Unicom |
| | China Mobile |
Heilongjiang | Harbin | China Telecom |
| | China Unicom |
| | China Mobile |
Shanghai | Shanghai | China Telecom |
| | China Unicom |
| | China Mobile |
Jiangsu | Changzhou | China Unicom |
| Lianyungang | China Unicom |
| Nanjing | China Telecom |
| | China Unicom |
| | China Mobile |
| Nantong | China Telecom |
| Suzhou | China Telecom |
| Wuxi | China Telecom |
| | China Unicom |
| | China Mobile |
Zhejiang | Hangzhou | China Telecom |
| | China Unicom |
| | China Mobile |
| Jinhua | China Unicom |
| Wenzhou | China Telecom |
Anhui | Hefei | China Telecom |
| | China Unicom |
| | China Mobile |
| Suzhou | China Unicom |
| Wuhu | China Telecom |
Fujian | Fuzhou | China Telecom |
| | China Unicom |
| | China Mobile |
| Longyan | China Unicom |
| Nanping | China Unicom |
| Putian | China Unicom |
| Quanzhou | China Unicom |
| Sanming | China Unicom |
| Xiamen | China Unicom |
| Zhangzhou | China Unicom |
Jiangxi | Fuzhou | China Unicom |
| Nanchang | China Telecom |
| | China Unicom |
| | China Mobile |
Shandong | Jinan | China Telecom |
| | China Unicom |
| | China Mobile |
| Qingdao | China Unicom |
Henan | Luoyang | China Unicom |
| Zhengzhou | China Unicom |
Hubei | Wuhan | China Telecom |
| | China Unicom |
| | China Mobile |
Hunan | Changsha | China Telecom |
| | China Unicom |
| | China Mobile |
| Chenzhou | China Telecom |
| Hengyang | China Unicom |
Guangdong | Dongguan | China Telecom |
| Foshan | China Telecom |
| Guangzhou | China Telecom |
| | China Unicom |
| | China Mobile |
| Shantou | China Unicom |
| Shenzhen | China Telecom |
Guangxi | Nanning | China Telecom |
| | China Unicom |
| | China Mobile |
Chongqing | Chongqing | China Telecom |
| | China Unicom |
Sichuan | Chengdu | China Telecom |
| | China Mobile |
| Deyang | China Telecom |
| Meishan | China Telecom |
Guizhou | Guiyang | China Telecom |
| | China Unicom |
| | China Mobile |
Yunnan | Kunming | China Telecom |
| | China Unicom |
Shaanxi | Xi'an | China Telecom |
| | China Unicom |
| | China Mobile |
| Xianyang | China Unicom |
Gansu | Lanzhou | China Telecom |
| | China Unicom |
| Tianshui | China Telecom |
Ningxia | Yinchuan | China Telecom |
Xinjiang | Urumqi | China Telecom |
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