# Chat glossary (/en/realtime-media/agora-analytics/build/explore-and-analyze-data/chat-data-metrics) > For AI agents: see the complete documentation index at [llms.txt](/llms.txt). This page explains Chat-related metrics. ## Scale metrics ### Total registered users The accumulated number of registered users under this project as of the current time. This number could decline if some UIDs are deleted. ### Daily new users The number of newly registered users under this project today (00:00 – current time). ### Daily active users (DAU) The number of users who log in or send or receive messages today (00:00 – current time). A user connected through multiple devices is regarded as one active user. ### Monthly Max. DAU The highest number of DAU from 00:00 on the first day of this month to the current time. ### Total group chats The number of created group chats under this project as of the current time (disbanded group chats are excluded). ### Daily new group chats The number of newly created group chats under this project today (00:00 – current time). ### Daily disbanded group chats The number of disbanded group chats under this project today (00:00 – current time). ### Daily active group chats The number of group chats that send uplink messages or receive downlink messages today (00:00 – current time). ### Total chat rooms The number of created chat rooms under this project as of the current time (disbanded chat rooms are excluded). ### Daily new chat rooms The number of newly created chat rooms under this project today (00:00 – current time). ### Daily disbanded chat rooms The number of disbanded chat rooms under this project today (00:00 – current time). ### Daily active chat rooms The number of chat rooms that send uplink messages or receive downlink messages today (00:00 – current time). ### Daily chat room PCU The highest number of users connected to servers at the same time in chat rooms under this project today (00:00 - current time). Note that the displayed data has a 10-minute delay. ## Message count metrics The following metrics apply to one-to-one chats, group chats, and chat rooms, as well as all message types. ### Total dispatched messages The number of messages dispatched by the Chat server as of yesterday. ### Total uplink messages The number of messages sent from clients to the Chat server as of yesterday. ### Total downlink messages The number of messages sent from the Chat server to online users as of yesterday. ### Total offline messages The number of messages sent from the Chat server to offline users as of yesterday. ## End-user API metrics ### Metric type | Metric type | Description | | :-------------------- | :---------------------------------------------------------------------- | | Manual login | Users log in through a password or token. | | Automatic login | Users log in automatically through a persistent token. | | Message sending | Users send messages. | | Friends management | User operations such as adding or removing friends from their contacts. | | User management | User operations such as creating and updating a profile. | | Group chat management | User operations such as creating and deleting group chats. | | Chat room management | User operations such as creating and deleting chat rooms. | ### Metric | Metric | Description | | :---------------------------- | :------------------------------------------------------------------------------------------------------------------------- | | Request attempts | The total number of attempts to call the client SDK APIs. | | 1s/3s/5s request success rate | The number of successful calls of the client SDK API in 1s/3s/5s divided by the total number of effective call attempts ①. | | Average request delay | The sum of delay of client SDK API calls divided by the total number of successful calls. | ① The total number of effective call attempts does not include invalid call attempts. A call attempt is considered as invalid if one of the following requirements is met: * The username or password is empty or incorrect. * The username is illegal. * The password is invalid. * The user cannot perform the operation without an admin permission. * The user does not exist. * The group chat does not exist. * The user is not found in the group chat. ## Server API metrics ### Metric type | Metric type | Description | | :----------------------- | :-------------------------------------------------------------------------------------------------- | | Token generation | Retrieving a token that has the privilege of an administrator through the RESTful API. | | User system registration | User registration and retrieving, modifying, and deleting user information through the RESTful API. | | File upload / download | Uploading and downloading audio, image, and other files through the RESTful API. | | Message sending | Sending a message through the RESTful API. | | Group chat management | Functions such as creating and deleting group chats through the RESTful API. | | Chat room management | Functions such as creating and deleting chat rooms through the RESTful API. | | User attributes | Functions such as setting and deleting user attributes through the RESTful API. | ### Metric | Metric | Description | | :---------------------------- | :---------------------------------------------------------------------------------------------------------------------- | | Request attempts | The total number of attempts to make RESTful API requests. | | 1s/3s/5s request success rate | The number of successful RESTful API requests in 1s/3s/5s divided by the total number of RESTful API request attempts. | | Average request delay | The sum of delay of all RESTful API requests divided by the total number of successful RESTful API requests. |