Firdaus Zahari

This plugin allows you to track all user devices used when logging in to your site. The user agent, login date/time, and logout date/time (if the users log out from the site) are tracked automatically and persisted into the database for later viewing.
You can find a list of all login devices available under the Users > Login Devices submenu.

FS Login Devices

Track and display all users devices used during authentication process

耗子

此插件提供一种简单的方式为你的 WordPress 网站提供作者 IP 属地及 User-Agent 展示，以符合中国的法律要求。 
插件使用纯真 IP 库 或 腾讯位置服务(https://lbs.qq.com/location/)，个人单日可免费查询 10000 次，企业单日免费 3000000 次。 
Notice: This plugin uses the api from lbs.qq.com to work, privacy URI: https://lbs.qq.com/userAgreements/agreements/terms

IPUA – IP  属地和 User-Agent 插件

WordPress IP 属地 和 User-Agent 插件

FS Login Devices vs IPUA – IP 属地和 User-Agent 插件