The "Referer" [sic] header triggered berlin.de's anti-bot measures. When I removed that header with a Firefox add-on, the appointment links worked properly again.

I updated All About Berlin's nginx config to stop passing the Referer header to berlin.de redirects.

I don't think it would be so bad at this scale. If it gets *really* bad, I could easily outsource it, unlike the rest of my work.

I highlight some of my concerns here: news.ycombinator.com/item?id=4519...

A notable change is that I now recommend specific insurers, instead of making you choose from a dozen options. This makes the advice less neutral, but far more useful. I still recommend the same things I would recommend to my closest friends.