In general, webinar analytics can include:

Number of participants: How many people registered and how many actually joined the webinar.

Attendance rate: The ratio of those who registered to those who actually attended.

Duration of participation: How long participants were in the webinar.

Chat activity or questions: How much interaction participants had during the webinar — whether they asked questions or actively participated in the discussion.

Participant feedback: If you conducted a survey or collected feedback, it is important to assess how useful or interesting the webinar was.

Conversion (if any): For example, if the webinar was held to sell or promote a product, how many participants made a purchase or subscription after the webinar.