Detecting dark mode clients with Litmus tracking

Litmus tracking codes now include the detection of specific dark mode variants on some supported email clients. This lets Litmus users get a better understanding of the popularity of dark modes amongst their email audiences. 

How do I include dark mode detection within my email?
All you need to do to begin tracking dark mode clients is to create and insert a Litmus tracking code into your email's HTML. 

Do my existing tracking codes automatically now capture dark mode clients?
Only tracking codes created on or after October 23, 2020, are able to detect dark mode clients. If you have email campaigns containing older Litmus tracking codes you will need to replace them with new ones if you wish to begin collecting dark mode client information on these campaigns.

Can I amend my existing tracking codes (configured before 23 October 2020) to detect dark modes?
This is not advised. Doctoring existing tracking codes may cause the code to stop working all together causing a loss of data for you.  We recommend completely replacing any existing tracking codes with new ones where there is a need to begin capturing dark mode information for ongoing email campaigns. 

How do I see what dark mode clients my users are opening my emails on?
Once an email containing a Litmus tracking code has been deployed, data for that tacking code will begin to be displayed within Litmus. You can view this information by opening the email project in Litmus and navigating to the ‘analytics’ tab.

analytics tab in email project

Alternatively, you can look up the specific tracking code within the ‘Analytics’ section listed in the main menu of the Litmus app.

analytics section of Litmus appDark mode information will be shown in the expandable table within the ‘email clients’ section of the tracking code report 

email clients section showing dark mode data

Does Litmus detect dark mode across all clients?
No. Litmus looks for dark mode variations of clients where available. Currently, some inboxes prevent us from detecting this level of data.

What clients can Litmus detect dark mode for?
The clients Litmus currently detects dark mode variants for are:

  • Apple Mail 13, 14 and 15
  • iOS 13, 14 and 15
  • iPad OS 13, 14 and 15
  • Apple Image Cache (Apple Mail Privacy – more on how iOS 15 opens are reported can be found here
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