How Klaviyo Treats iOS Opens

Hey @PaulyB 

Thank you so much for reaching out to the Klaviyo Community for insight on open/click rates from your customer’s phones and I’m so sorry for the delayed response on this! Thank you for being part of Klaviyo for two years now! It’s members like you, who make Klaviyo better. Your experience, questions and collaboration help all of us grow! Hopefully I can help provide some clarity to you and the Community!

To get started, Klaviyo tracks open rates by placing a tiny, invisible pixel image at end of every email. When the email has been opened we mark the image as “viewed”, then marks the email as opened, this is an industry standard. Whether you are using plain text emails or multimedia content, this pixel is always present for tracking purposes. Understanding Conversion Tracking goes more in-depth on how open rates are tracked and includes a link on how to change where in your emails pixel is located. By default, this pixel is located at the bottom of your emails; however, you have the ability to move it to the top. If you send very large messages, then choosing to have this pixel at the top of your emails can improve open tracking that is otherwise cut or “clipped” by some inbox providers.

In many cases when customers have their setting enabled of "Do not load images" (available in all email clients), this would cause the pixel to not load, and not track the open. Because this is entirely up to to the customer’s email client settings, there is no current way to track opens in these cases, but you can still track clicks, like you stated in your post!  @david.to shared some additional insight into open/click rates and what it means to have your emails “clipped” that you may find useful in these Community post:

I hope this helped answer your questions or gave you a path forward to discover more. Thank you so much for being a part of the Klaviyo Community!