Shit, they were my go-to page for signing into hotel WiFi. Where can I go to now?
As noted on NeverSSL:
> [...] it [...] means that if you're relying on poorly-behaved wifi networks, it can be hard to get online. Secure browsers and websites using https make it impossible for those wifi networks to send you to a login or payment page. Basically, those networks can't tap into your connection just like attackers can't. Modern browsers are so good that they can remember when a website supports encryption and even if you type in the website name, they'll use https.
I usually use gstatic.com, which does redirect, but also gstatic.com/generate_204 is Chrome's own capive portal test page and does not redirect. There's also msftncsi.com, which (/ncsi.txt) is Microsoft's test page.