A quick look at the network tab in the dev tools: the page is less than 10 KB (fits in TCP fast start window), little external resources (10 in total: 1 HTML, 1 CSS, 4 fonts, 2 images and 2 JS files), tiny amount of JS code which doesn't add extra requests, all served by Google's CDN which probably has a mirror geographically close to you.

I'm almost taken aback at how quick that loaded. It reminds me of finally upgrading from dialup.

The modern web experience really is subpar.

I probably wouldn't have even noticed had you not said anything. But yeah you're right, that was instant. Very nice work.

Extremely sad the comment is warranted these days, but yep, nice and fast.