Trellis has always used nginx microcaching, basically page caching.
The WordPress site health check fails the page caching test on Trellis though,
as it expects one or more caching-specific HTTP headers and values for page caching being considered working.
cache-control, expires, age, last-modified, etag, x-cache-enabled, x-cache-disabled, x-srcache-store-status, x-srcache-fetch-status
The response header for the frontend front page is Cache-Control: no-cache, must-revalidate, max-age=0. This would not satisfy the page caching test in WordPress site health.
Although this is less of an issue with agency sites, I would still want to see all health checks pass.
Can the header checks be modified to detect a Trellis-specific page caching header or behavior for example?