# Opened and Clicked Rates

## Opened and Clicked Rates

## How are open rates measured?

In order to track if an attendee has opened the email, a tiny transparent image is inserted in our email template. Once the attendee opens the email, the image will be loaded by the email client, therefore, making it count as an opened email.

## Untracked email opens

There is a chance that the email client does not load the transparent image and therefore, leading to the email not being marked as opened. This explains why our system will show that some attendees have not opened the email but have clicked on the links within an email.\
![](/files/m3gzRe9V18TGI6pwc7ZQ)\
The following are common email clients that are known to automatically block the images from loading.

1. Apple Mail
2. Google Gmail
3. Microsoft Outlook
4. Mozilla Thunderbird

## How are click rates measured?

As long as any link within the email is clicked, the email address will be marked as clicked.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://eventx-hq.gitbook.io/knowledge-base/outreach-channel/email-analytics-and-optimization/opened-and-clicked-rates.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.