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

10contributions

high2

medium8

score14

Last 90 days

14contributions

high3

medium11

score20

Last 12 months

94contributions

high15

medium79

score124

Team focus

Share of contributions across teams during the last 365 days

WordPress releases

Contributed to 20 releases

Contributions

Type

September 2026

Sep 29 Tue · 12:47

Forums med

Posted a reply to [The SEO Framework – Fast, Automated, Effortless.] Update WordPress 7.1, on the site WordPress.org Forums:
Howdy! Thank you for your continued interest in my plugin :) The SEO Framework still…

Sep 28 Mon · 17:41

Core med

Reopened ticket #60552 on Core Trac:
Add hook to WP_Sitemaps::render_sitemaps()

Sep 15 Tue · 21:28

Forums med

Posted a reply to Adding Something to Robots.txt File, on the site WordPress.org Forums:
Hi @eac2025, @juregolob pointed you at the right filter (thank you!) -- that's how extra…

Sep 15 Tue · 21:20

Forums med

Posted a reply to AEO?, on the site WordPress.org Forums:
Hi Greg, AEO is a marketing name, same as GEO. It is not a standard,…

Sep 15 Tue · 16:05

Forums med

Posted a reply to Hide 100% Location when this box is Checked, on the site WordPress.org Forums:
Hi Dimal, Yes, you can reach us at https://tsf.fyi/contact.

Sep 15 Tue · 12:59

Forums med

Posted a reply to Hide 100% Location when this box is Checked, on the site WordPress.org Forums:
Hi @dimalifragis, I added visual breadcrumbs to TSF in v5.0. See https://kb.theseoframework.com/kb/breadcrumb-shortcode/. Do those breadcrumbs…

Sep 12 Sat · 12:04

Playground med

Created issue #4325 in the WordPress/wordpress-playground repository:
Platform mu-plugin always 301s /sitemap.xml and blocks third-party sitemaps

Sep 12 Sat · 10:23

Forums med

Posted a reply to Incorrect homepage canonical placeholder with /blog/%postname%/ permalinks, on the site WordPress.org Forums:
Thank you for the detailed report, @webdocopy! It helped pin down the cause immediately. I…

Sep 07 Mon · 00:48

Core med

Submitted pull request #13413 to WordPress/wordpress-develop:
Merge extra headers into the get_plugins() cache after the first scan

Sep 07 Mon · 00:39

Core med

Created ticket #66057 on Core Trac:
get_plugins() cache ignores extra_plugin_headers registered after the ...