I wrote the original "curlese" post (in Italian) back in 2021: the idea that when an HTTP integration breaks, a `curl -v` command is the only language every team should speak. Curl is the ideal tool since you don't have to share logs and neither prove your application behaviour. The thesis stood the test of time :-)
Also is there an approved English version of it, or the same information by someone else?
edit: as pointed out there is one (to an english translation) in the first footnote
An other commenter pointed me towards the link in the first footnote. May I suggest linking most of the opening sentence, from "a post" to "curlese"? That would make it very clear where said previous post is.
Also maybe cross-link the italian and contributed english versions of the original post in case someone else finds the former and can't read italian, the contributed translation is definitely quite a bit better than Apple's automated translation at the very least.