Manage Email Notifications


You can choose to receive email notifications for Sites in Calibre. To manage your notification preferences go to Profile → Email Notifications.

Insights Report

Calibre automatically generates a report called Insights for each site you track. Insights is delivered to your email weekly (on Mondays), or monthly (first day of the month), or both. Insights is a digest of notable metric changes to each of your Sites, including reporting on Core Web Vitals.

A preview of the weekly Insights Email Report

Insights is available on all account tiers at no additional cost. To enable the report, sign in to your account and navigate to email notifications (found in the top-right dropdown menu). Each member of your team will have to turn the report on separately to start receiving it.

The first email will arrive on the following Monday or at the start of the next month.

Budget Alerts

Calibre will notify you when a performance budget is exceeded, met or at risk of being exceeded. When creating a new Budget, you will receive an email showcasing the current Budget status. Consequently, you will receive an email depending on the selected frequency of notifications:

  • Receive notifications when there’s a sustained change to the Budget status: You will receive a notification each time there is a persistent change (over at least 2 Snapshots) to the overall Budget status. This is useful if you would like to ensure changes in metrics are persisting in the long term instead of observing natural monitoring fluctuations. It will produce fewer notifications but might delay noticing regressions depending on how often tests are run (the more frequent tests are, the faster you will see a notification).
  • Receive notifications when any Page changes status: You will receive a notification each time a single Page and Test Profile combination changes status. This is useful if you would like to be notified straight away. It might increase the number of notifications and decrease the accuracy since metrics naturally fluctuate.

Anyone with a Calibre account can subscribe to receive Budget alerts for selected Sites.

A preview of a Budget email with at risk status

There are three types of Budget alert emails:

  • Budget is exceeded
  • Budget is met
  • Budget is at risk

Each email showcases the following information:

  • Site tested
  • Test location
  • Budgeted value
  • Number of Pages affected
  • List of Pages with their metric scoring and Test Profiles they were tested with

Snapshot Failure Alerts

Calibre sends notifications for failed Snapshots, so you can quickly identify and resolve issues before your monitoring data reliability is affected. If any test within a given Snapshot fails to complete, you will receive an email outlining affected Pages and Test Profiles combination, as well as the reason for errored runs.

A preview of a test failure notification email

You will receive a maximum of three consecutive emails about the same test failure. After three alerts, Calibre will stop notifying you even if the error persists. Once the issue is resolved, you will receive a confirmation email stating that Snapshots are now completing successfully.

All admins will receive Snapshot failure alerts, and all users can opt into receiving them in Profile → Email Notifications.

Integration Failure Alerts

Calibre sends notifications for integration errors so that you can resolve connection issues quickly.

Email notification about a failing Slack integration with a specific error

Everyone subscribed to Snapshot Failure Alerts will receive emails about failing integrations too. Calibre will email you once and turn off an integration (if errors persist) on the date specified in the notification email.

Site Addition Notifications

When you add a new Site to be monitored, Calibre sends an email with initial performance results, so you know how well it stacks against our measurement dataset. The email showcases three key performance metrics: Largest Contentful Paint, Cumulative Layout Shift and Total Blocking Time (Core Web Vitals).

A preview of initial results email

By default, everyone will receive the Site addition notifications for their Team(s), unless they opt out in Profile → Email Notifications.

Team Membership Notifications

Calibre will notify you when you are added to a new Team by the administrator.

A preview of an email received when someone adds you to a new Team.

Everyone will receive the Team membership notifications. At any point, you can see the Teams you belong to in the top navigation, by clicking the down arrow icon next to the currently selected Team name.