This page is client-side-rendered. The "Page generated on:" date changes with every visit because the date is fetched during a "useEffect". You'll also be able to notice that the rendering of some elements on this page "flickers" as opposed to the other pages on this website. That's because some of the values rendered into this page are dynamic and can only be rendered after the page is interactive (all JS is loaded by the browser and interpreted). This flickering is most noticable when you do a hard reload of the page.
Some of the effects of CSR:
This implementation uses useEffect.