Hmmmm...

I just discovered that the zoom level od the site does not matter, it is changing the zoom level (up or down) that fixes the formating. The fix is only temporary for the current session. When closing the browswer and reopening it the formating is borked again, changing the page zoom (up or down) snaps the site in place.

This might be a bug for Safari in iOS and not the site. But this is the only site I have had problems with.

Running iOS 13.4, so latest version of safari on both phone and tablet.

Btw (and I'm not making any assumptions here), but the "zoomed in" look is, as I'm sure you probably know, typical for a "responsive" website in mobile display. If you are looking to see the website in the "full" view like you would normally see when looking at this on desktop, there is a "Display as Desktop" link at the very bottom of the page...

...and not to spam the thread, but I just took a look and noticed that you are already set to "display as desktop" which is why you are getting that "zoomed in" appearance. If you look at the very bottom of the screen, you should see the "display as mobile" link which will push you to the correct format for mobile.

But desktop has worked before (and I prefer it) :P

I don't know how accurate it is (it probably isn't but might still be useful), but Firefox can sort of simulate/emulate the way different browsers display web sites. Specifically, it has a Responsive Design Mode which lets you choose different devices. You can open it via normal web dev tools or by using Ctrl + Shift + M.

If you have Opera, then you can test there. It has extensions to test websites in their mobile form, both Android and iOS:

https://addons.opera.com/fr/extensions/details/responsive-web-design-tester/

https://addons.opera.com/fr/extensions/details/mobile-view-switcher/

I always suggest the following options:

http://browsershots.org/

https://www.browserling.com/

https://crossbrowsertesting.com/

Browser extensions can be a simple method but they will miss a lot that can only truly be found in dedicated hardware with the actual browser.  That's what these cross-browser/cross-platform web sites do.

I didn't suggest those because they need a paid subscription. Not sure if VGChartz would cover for those $20-30 per month per user, even though it's needed for the website.

That said, I didn't know about Browsershots yet. The question is how long until it's your turn in the queue, might take a while before your site submission gets tested.

I have used Browserling before and it paid for itself very quickly.  I have friends that use CrossBrowserTesting and wear by it.  Granted web site design and  development is what they do.  I added BrowserShots because it's free and I like the concept. No idea how long it takes to get results though.