Planet is some RSS aggregator written in Python we're using over at Planet Inkscape. But maybe I should start at the beginning.

Lots of weird requests which resulted in 404s showed up in the log. Things like:

XX at http:/kaioa.com
XX at
XX
XXathttp:/kaioa.com

Where "XX" stands for the node id. E.g. "36" for this blog post.

After investigating it for a bit I found the shocking reason behind this.

read more