It looks like the dates in the details of the security certificate warning page are incorrectly formatted (or maybe incorrectly exposed by oxide?). For https://testssl-expire.disig.sk/ I’m seeing an expiry date of "jeu. juil. 23 15:17:38 2381 GMT+0100". The year looks incorrect (and the formatting too, for a date localized in French, but I guess that’s a separate issue).
It looks like the dates in the details of the security certificate warning page are incorrectly formatted (or maybe incorrectly exposed by oxide?). For https:/ /testssl- expire. disig.sk/ I’m seeing an expiry date of "jeu. juil. 23 15:17:38 2381 GMT+0100". The year looks incorrect (and the formatting too, for a date localized in French, but I guess that’s a separate issue).