It’s probably because you haven’t proven you’re a human to their satisfaction. Do you have Firefox’s privacy settings turned way up? You may need to set an exception. If you block too much and are mixed in with a bunch of other clients, you look like a bot.

When this happens to me it’s usually a cloudflare problem. Sometimes it fixes itself in a day or two. A few times it has been broken for weeks and I’ve had to use a VPN to reach it.

I am not getting prompted any captcha when I visit the site.

Tte prove that you are human thing work with a mouse movement tracker, if you move the mouse to straightline or calculate movement to the checkbox, the algorritm supposed a bot. But normally this issue you have is due to some extension, browsersetting or security soft. In Vivaldi I checked it in a guest profile, this putt the browser to the default settings and without extensions. I think in Firefox there will be a similar methode to check it, otherwise desactive the extensions one by one and clear the cache.

Not infinite but I do get a couple in a row as it seems to redirect around a few domains (.today, .is, .ph)

If you change one or the other does it fix it?

And what extensions are you using? Anything in firefox that would exacerbate the problem?