Add an X-Clacks-Overhead header with “GNU Terry Pratchett” to all non-admin pages.
As of April 2026, GNU Terry Pratchett is a WordPress http-headers plugin with 1.0K+ active installations and a 5/5 rating from 13 reviews. It has been downloaded 18K+ times in total. Requires WordPress 4.6+ and PHP 5.6+. Available on WordPress.org since 2015. Downloads are up 7% this week. Top alternative: HTTP Headers.
The GNU Terry Pratchett plugin transmits an “X-Clacks-Overhead” header reading, “GNU Terry Pratchett” so that Terry’s name is whispered forevermore in the Internet’s “overhead”.
In Pratchett’s “Going Postal”, workers who die in the line of duty have their names transmitted up and down the Discworld’s telegraph system as a tribute.
This plugin makes it easy for WordPress users to do the same for Terry Pratchett, without having to modify their server configuration.
The plugin adds the GNU Terry Pratchett header in two ways:
The text sent in HTTP headers and meta tags is “GNU Terry Pratchett” by default.
C…
Thanks to Nick, the headers will forever be sent to and fro.
It is said that your life flashes before your eyes just before you die. That is true, it’s called Life
Added to our site this day. We will echo his name forever.
Thanks Nick. Very well done and a great tribute.
in the mailheader addition:
// $args[‘headers’] .= “X-Clacks-Overhead: GNU Terry Pratchett \n”;
should be
$args[‘headers’][] = “X-Clacks-Overhead: GNU Terry Pratchett \n”;
otherwise it kills the email with an ArrayX-Clacks-Overhead.
It’s an array not a string of headers..
Great initiative though.. Thanks!
I think this is a charming tribute to a remarkable man who influenced so many of us. I know his body recently followed where his spirit had gone some months before, but I am still sad.
| WordPress | 4.6+ requiredTested up to 6.9.4 |
| PHP | 5.6+ required |
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