How to fix "Cannot Verify Server Identity The identity of "wancelibbe.club" cannot be verified." The message pops up every now and then and when I play videos

Hey 1_H,

Thanks for using Apple Support Communities. What happens when you choose "Details" from the pop-up that appears? It should provide you with a bit more information on where the alert is coming from. You could have an account added to your iPhone that's causing this or possible a calendar.

Let us know what you find.

Take care!

Thank you for those extra screenshots 1_H,

Does this error pop up only when using a specific app? If so, we would encourage you to reach out to the app developer directly. They will be experts in troubleshooting their apps, and how they interact with your iPhone: Contact a third-party vendor - Apple Support

If you're using Safari, we can recommend following the steps outlined in the Apple Support article If Safari isn't loading websites or quits on your iPhone, iPad, or iPod touch - Apple Support, which targets a variety of issues with Safari.

Should you continue to need additional assistance after that, Apple Support will be best equipped to continue the investigation. You can reach them here: Get Support

Have a great weekend.

Thank you for your service

Thank you for your service