- The introductory text ("Org mode is for keeping notes [...]") overflows, possibly because of an enforced minimum font size (and an assumption about it that doesn't always hold true in the markup) in my case.
- SVG images are embedded as objects, leading to noscript blocking them in FF, and just unnecessary spam ("Sorry, your browser does not support SVG.") in lynx. This one is more of a question, rather than just a report: why not to use the img tag (which, I think, is handled generally better) instead? Or even to leave them as texts.
- "Made with by TEC" uses a relatively uncommon glyph (the font I use doesn't have that; apparently it was assigned just last year).