Page cache is not detected

After update to the newest versions of WP Core & plugins (Woocommerce, Litespeed Cache) in the Site Health Status in recommended improvements section I see:

Page cache is not detected but the server response time is OK

`Page cache enhances the speed and performance of your site by saving and serving static pages instead of calling for a page every time a user visits.

Page cache is detected by looking for an active page cache plugin as well as making three requests to the homepage and looking for one or more of the following HTTP client caching response headers:
cache-control, expires, age, last-modified, etag, x-cache-enabled, x-cache-disabled, x-srcache-store-status, x-srcache-fetch-status.

Median server response time was 14 milliseconds. This is less than the recommended 600 milliseconds threshold.
No client caching response headers were detected.
A page cache plugin was not detected.`

…but the cache is hit:
https://check.lscache.io/?host=https%3A%2F%2Fmamalyga.org%2F

Why I see this warning?

• This topic was modified 2 years ago by Adam.

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