[rokkamokka]

I'm not overly surprised, it's probably faster to search the text for http/https than parse the DOM

[embedding-shape]

Not probably, searching through plaintext (which they seem to be doing) VS iterating on the DOM have vastly different amount of work behind them in terms of resources used and performance that "probably" is way underselling the difference :)

[franktankbank]

Reminds me of the shortcut that works for the happy path but is utterly fucked by real data. This is an interesting trap, can it easily be avoided without walking the dom?

[marginalia_nu]

The regex approach is certainly easier to implement, but honestly static DOM parsing is pretty cheap, but quite fiddly to get right. You're probably gonna be limited by network congestion (or ephemeral ports) before you run out of CPU time doing this type of crawling.