[wp-trac] [WordPress Trac] #63858: Trigger the wp_cron action from the shutdown hook instead of the init hook to reduce TTFB (⏱️ Time To First Byte) and improve performance 📈

WordPress Trac noreply at wordpress.org
Thu Nov 27 17:04:36 UTC 2025


#63858: Trigger the wp_cron action from the shutdown hook instead of the init hook
to reduce TTFB (⏱️ Time To First Byte) and improve performance 📈
-------------------------------------------------+-------------------------
 Reporter:  pmbaldha                             |       Owner:
                                                 |  westonruter
     Type:  enhancement                          |      Status:  closed
 Priority:  normal                               |   Milestone:  6.9
Component:  Cron API                             |     Version:  2.1
 Severity:  normal                               |  Resolution:  fixed
 Keywords:  has-patch needs-testing has-unit-    |     Focuses:
  tests has-dev-note                             |  performance
-------------------------------------------------+-------------------------

Comment (by westonruter):

 In [changeset:"61313" 61313]:
 {{{
 #!CommitTicketReference repository="" revision="61313"
 Cron API: Restore spawning cron at `wp_loaded` when using alternate WP
 Cron (`ALTERNATE_WP_CRON`).

 Developed in https://github.com/WordPress/wordpress-develop/pull/10561

 Follow-up to [60925].

 Props karl94, peterwilsoncc, parthvataliya, johnbillion, westonruter.
 See #63858.
 Fixes #64315.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/63858#comment:15>
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