API Domain Name Description
Description of API Domain Names for the Official Accounts Platform
Developers can choose the best access point based on their server deployment (for lower latency and higher stability). In addition, developers can use other access points for disaster recovery purposes so that they can switch to an alternate access point in case of network linkage failures.
General domain name (api.weixin.qq.com). The officially designated access point nearest to you is accessed when this domain name is used.
General domain name for remote disaster recovery (api2.weixin.qq.com). This domain name can be accessed when the domain name above is inaccessible.
Shanghai domain name (sh.api.weixin.qq.com). The access point in Shanghai is accessed when this domain name is used.
Shenzhen domain name (sz.api.weixin.qq.com). The access point in Shenzhen is accessed when this domain name is used.
Hong Kong domain name (hk.api.weixin.qq.com). The access point in Hong Kong is accessed when this domain name is used.