When I visit the site I get the error "Your connection is not private". Also: "You cannot visit magazine.sebastianraschka.com right now because the website uses HSTS."
First suspicion is that HSTS is doing what it's supposed to, and that you're connecting from somewhere they try to insert themselves in the middle of all https traffic. Https snooping is sadly not uncommon, some businesses think they're entitled to do it for you using their network.
First suspicion is that HSTS is doing what it's supposed to, and that you're connecting from somewhere they try to insert themselves in the middle of all https traffic. Https snooping is sadly not uncommon, some businesses think they're entitled to do it for you using their network.