Sybre Waaijer (@cybr) – WordPress user profile

Bio

I started in 2014 with WordPress. I manage WordPress (Multisite) hosting networks, I contribute to WordPress Core, I design custom themes, and I create free SEO plugins.

With everything I do, I focus on performance, scalability, security, privacy by design, and I aim for seamless integrations.

My goal is to prove that you can contribute full-time to WordPress without exploiting its users. I believe I already achieved that; people just haven’t noticed it yet.

Interests

Nature, Community, DevOps, SecOps, Indie, Music, Privacy

WordPress Origin Story

In 2014, I created a community website using bbPress. Everything was slow and sluggish, and as a perfectionist who’s overambitious, I quickly learned how to resolve that. This endeavor led me to start a hosting company, join WPMUdev’s community, and eventually develop custom solutions, which ultimately kicked off my full-time WordPress plugin development career.

Badges

CODE

3 badges

Core Contributor '17 Meta Contributor '19 Plugin Developer

PRACTICE

1 badge

Support Contributor '26

POLYGLOTS

2 badges

Translation Contributor '15 Translation Editor '16

Current Job

Senior full-stack offensive web engineer/architect

Sep 2015 – Present

CyberWire B.V. · Full-time

Recent impact

Score weights high-impact work (commits, releases, approved translations, props) at 3x routine activity.

Last 30 days

15contributions

high5

medium10

score25

Last 90 days

25contributions

high6

medium19

score37

Last 12 months

106contributions

high19

medium87

score144

Team focus

Share of contributions across teams during the last 365 days

WordPress releases

Contributed to 20 releases

Contributions

Type

October 2026

Oct 23 Fri · 20:51

Forums med

Posted a reply to Custom Title separator, on the site WordPress.org Forums:
Hi Denny, Thanks for the kind words, and sorry for the late reply. I recommend…

Oct 23 Fri · 19:36

Forums med

Posted a reply to Unknown file in wordpress core, on the site WordPress.org Forums:
Sorry for the late reply. TSF does not create or modify files under wp-includes. admin-ui.js…

Oct 23 Fri · 14:17

Forums med

Posted a reply to Disable sitemap functionality, on the site WordPress.org Forums:
Hello! Uncheck "Output optimized sitemap?" under "SEO Settings > Sitemap Settings" and save. The other…

Oct 23 Fri · 13:32

Forums med

Posted a reply to A co-author probably shouldn’t have so many items in their profile., on the site WordPress.org Forums:
Thanks for the suggestion. TSF 5.2.0 added SEO settings for author archives. You can restrict…

Oct 22 Thu · 13:07

Forums med

Posted a reply to Breadcrumbs and Directorist plugin, on the site WordPress.org Forums:
Hi Dimal, Sorry for the late reply. Still catching up. TSF 5.2.0 fixes missing parent…

Oct 19 Mon · 13:20

Forums med

Posted a reply to TranslatePress Sitemap Support, on the site WordPress.org Forums:
TranslatePress sitemap support was added to TSF 5.2.0 :) Thank you for your patience, Dr.…

Oct 15 Thu · 12:58

Forums med

Posted a reply to ErrorException: Warning: Undefined variable $card, on the site WordPress.org Forums:
Hi Matthias, Thank you for reporting the issue. This issue was discovered earlier and is…

Oct 15 Thu · 01:14

Forums med

Posted a reply to Meta Title seemingly broken, on the site WordPress.org Forums:
Howdy! It's been a while, and your ask was our longest-standing feature request (since 2017!).…

Oct 15 Thu · 01:08

Forums med

Posted a reply to Update WordPress 7.1, on the site WordPress.org Forums:
🥰 5.2.0 is out now, supporting WordPress 7.0 and 7.1. I hope it was worth…

Oct 14 Wed · 12:03

Plugins high

Committed [3746265] to Plugins SVN:
Update stable tag.