Pro tip: empty the "Guest Mode" list!

While optimizing client's WP website, stumbled upon the same scammy tactic used by some caching plugins and CDNs… Today's case in point is Litespeed Cache.

It has a so called "Guest Mode", which you can turn on to serve hyperoptimized pages that load prematurely and deliver the rest of the content via AJAX calls. It's a good idea to keep it off, as it usually results in a rather large CLS. However, what many people seem to overlook, there's a second tab under "General", called "Tuning". And it lists user agents and IPs of most popular speed testing tools, enabling that "Guest Mode" for them by default.

…Who said "Volkswagen emission tests?"

…Anyhow. You may want to empty both of these lists, save your settings, and see how fast and compliant your website really is.