RegExp matching

[malexmave]

Some websites, like xkcd.com, update very frequently but have a static design, which (as proposed by @jonasob on Twitter) would make it possible (and possibly more efficient) to have one rule to match the name and URL of the image instead of generating a new JSON object thrice a week.

If that (or something similar) was possible in your architecture, that may be something to think about.