Disclaimer: Unofficial article, use at your own risk.

DNS queries and IP+port connections are monitored through OpenWRT dnsmasq and conntrack (NAT table).

SEMS+ iOS app:

• ali-stats.jpush.cn*
• app-analytics-services.com*
• app-measurement.com*
• au-gateway.semsportal.com
• au.mqtt.goodwe-power.com
• ce3e75d5.jpush.cn*
• clients3.google.com
• config.jpush.cn*
• firebaseinstallations.googleapis.com
• firebaselogging-pa.googleapis.com
• firebaseremoteconfig.googleapis.com
• firebase-settings.crashlytics.com
• gd-stats.jpush.cn*
• hk-gateway.semsportal.com
• o.alicdn.com
• oversea-gops-hk.oss-cn-hongkong.aliyuncs.com
• semsplus.goodwe.com
• semsplus.oss-cn-hongkong.aliyuncs.com
• sentry1.semsportal.com
• sentry.io
• sis.jpush.io*
• status-ipv6.jpush.cn*
• tsis.jpush.cn*

*Optional domains, commonly blocked by adblocker.

SEMS+ Web portal:

• a1320.dscb.akamai.net
• au-gateway.semsportal.com
• au-semsplus.goodwe.com
• cloudauth-device-dualstack.cn-shanghai.aliyuncs.com
• g.alicdn.com
• netty-wss-au.iot.goodwe-power.com:8885
• o.alicdn.com
• o.alicdn.com.w.cdngslb.com
• popunify-large-dualstack-1.cn-shanghai.aliyuncs.com.vipgds.alibabadns.com
• semsplus.oss-accelerate.aliyuncs.com
• semsplus.oss-cn-hongkong.aliyuncs.com

If browser setting has WebGL enabled but NoScript is configured to restrict it, configure NoScript to allow WebGL on au-semsplus.goodwe.com, otherwise the page freezes in less than a minute. The portal actually works fine without WebGL, but it has to be disabled in the browser setting, which disables for every websites.

GoodWe ESA connected to wifi using WiFi/LAN Kit-20 dongle:

Hostname: GW_WIFILAN_2
MAC address: C0:CD:D6:xx:xx:xx (Espressif)

• broker.goodwe-power.com:8883
• iot-cn.oss-cn-hangzhou.aliyuncs.com:443
• iot.goodwe-power.com:80
• jiankong-hk.oss-accelerate.aliyuncs.com:80
• www.goodwe.com (icmp)

There’s also DNS traffic to OpenDNS where router can intercept using port forwarding rule.