Cloudflare "Cache Everything" Rule For WordPress Multisite

multisite-cache-rule

If incoming requests match...
> Custom filter expression

When incoming requests match...
> Edit expression

(
  http.request.method in {"GET" "HEAD"}
  and not http.request.uri.path wildcard "/cdn-cgi/*"
  and not http.request.uri.path wildcard "/wp-admin*"
  and not http.request.uri.path wildcard "/wp-login.php*"
  and not http.request.uri.path wildcard "/wp-json*"
  and not http.request.uri.path wildcard "/wp-signup.php*"
  and not http.request.uri.path wildcard "/wp-activate.php*"
  and not http.request.uri.query contains "preview"
  and not http.request.uri.query contains "wp_customize"
  and not http.request.uri.query contains "customize_changeset_uuid"
  and not http.cookie contains "wordpress_logged_in_"
  and not http.cookie contains "wordpress_sec_"
  and not http.cookie contains "wp-postpass_"
  and not http.cookie contains "comment_author_"
)

Then...

Cache eligibility
> Eligible for cache

Edge TTL
> Ignore cache-control header and use this TTL
Input time-to-live (TTL)
> 2 hours

Status code TTL
> None (or)
> Greater than or equal - 500 - No store

Browser TTL
> Bypass cache

Cache key
> None
Cache deception armor
> Enabled

Serve stale content while revalidating
> Do not serve stale content while updating (disabled)

Respect strong ETags
> Use strong ETag headers (disabled)

Origin error page pass-through
> Use Origin error page pass-thru (disabled)

Place at
Select order
> First

Here's another rule for WordPress single site installations:

https://gist.github.com/jessuppi/4a8334d777621867f08c24f77c0857fc