@tweedge @siguza I was also complaining that it does the same on my website, which serves up just 1.79 MB over 11 requests and no external requests.
Sure, my hosting package is a bit shit - it's enough to work 99.9% of the time - but apparently not when generating a link preview from Mastodon.
Still, perfectly valid points made about the It's FOSS page being full of crap. π