Javier Casares (@javiercasares) – WordPress user profile

Javier Casares

System Administrator at ROBOTSTXT.es

@javiercasares Barcelona, Spain joined Apr 2012

javiercasares.com github.com/javiercasares slack: @JavierCasares

Teams Hosting

Languages ca es_ES

Bio

Hey there! I’m Javier, and I’ve almost been a digital native since the dawn of the internet (okay, maybe that’s a bit dramatic, but you get the point). I’ve been cruising the information superhighway since ’94, crafting websites since ’97, and I’ve been deeply involved with WordPress since 2005. So, I’ve seen some things!

These days, you’ll find me working behind the scenes on various WordPress projects, contributing where I’m needed, lending a hand when someone asks, and quietly pushing things forward from the shadows. I may not wear any official hats anymore, but I’m still very much around and involved.

Need to get in touch? Easy-peasy. Just shoot me an email at javier@casares.org. Looking forward to hearing from you.

Interests

Speaking of projects… check out the WordPress Vulnerability Database API (wpvulnerability.com) and the WordPress Podcast (wppodcast.org).

WordPress Origin Story

I tested WordPress 1.4, and started using WordPress 1.5 in 2005 when I had to move from my own self-developed CMS for publishing news and static pages. I imported my existing content via RSS into WordPress, and from that moment on, my involvement with WordPress has only kept growing.

Badges

CODE

6 badges

Core Contributor '20 C Core Performance Contributor '22 Hosting Contributor '19 Hosting Team '20 Meta Contributor '22 Plugin Developer

CONTENT

4 badges

Documentation Contributor '22 Documentation Team '23 Photo Contributor '23 WordPress.tv Contributor '24

COMMUNITY

4 badges

Community Contributor '22 Meetup Organizer '18 WordCamp Organizer '19 WordCamp Speaker '19

PRACTICE

1 badge

Training Contributor '22

POLYGLOTS

2 badges

Translation Contributor '15 Translation Editor '22

Current Job

System Administrator

May 2022 – Present

ROBOTSTXT.es

System Administration, Performance and Managed hosting for WordPress.

Job History

Founder

Dec 2012 – Mar 2018

Artesans

The most important WordPress agency in Barcelona.

WooCommerce Manager

Sep 2017 – Feb 2018

MAM Originals

Organizing the Digital Department at MAM Originals. WordPress and WooCommerce. SysAdmin, security and scalability.

Key Accomplishments

WordPress Barcelona Meetup Organizer (2013-01 / 2020-04)

WordPress Gramenet Meetup Organizer (2018-03 / 2020-05)

WPdanger (2017-07 / 2020-11) WordPress Danger is a tool for analyzing the security of your WordPress website. It also offers extensive documentation on how to improve your site’s security.

WPNoticias (2020-02 / 2022-01) WordPress Noticias is a weekly newsletter featuring a roundup of news from the WordPress community.

WPRadio (2020-09 / 2023-08). WordPress Radio is a weekly podcast in which we’ll review the most interesting news from the WordPress world and discuss a topic related to the WordPress community.

WPpodcast (since 2020-07). The WordPress Podcast is a weekly podcast featuring news from the WordPress community. Catch up on WordPress in less than 10 minutes a week!

WordPress Hosting Team Rep (2021-03 / 2025-01). The Hosting Team works to improve the WordPress user experience across hosting environments through user collaboration and education.

Recent impact

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

Last 30 days

3contributions

high2

medium1

score7

Last 90 days

8contributions

high2

medium6

score12

Last 12 months

30contributions

high4

medium26

score38

Specializations

evenly split across 1 team · no team-attributable activity in the last 365 days

Hosting 100% of attributed activity

Contributions

Type

May 2026

May 29 Fri · 02:04

Polyglots high

Translated 2 strings on translate.wordpress.org.

May 28 Thu · 05:29

Polyglots med

Suggested 4 strings on translate.wordpress.org.

May 27 Wed · 19:16

Polyglots high

Translated 599 strings on translate.wordpress.org.

April 2026

Apr 14 Tue · 10:43

Forums med

Posted a reply to [WPVulnerability] Incorrect warnings / out of date plugin database??, on the site WordPress.org Forums:
This is going to be fixed in the next few days. We just updated the…

Apr 14 Tue · 10:42

Forums med

Posted a reply to [WPVulnerability] Yoast warning <26.8?, on the site WordPress.org Forums:
We are adding a lot of new vulnerabilities and this should be fixed.

Apr 14 Tue · 10:42

Forums med

Posted a reply to [WPVulnerability] Persistent “It may no longer be available (closed?)” message, on the site WordPress.org Forums:
This is going to be fixed in the next few days. We just updated the…

Apr 06 Mon · 07:17

Forums med

Posted a reply to False Positives on Site Health page with Debian servers, on the site WordPress.org Forums:
Hello. The main problem is that there is no way to detect and match patch…

Apr 04 Sat · 06:27

Meta med

Wrote a comment on the post Community Summit alongside a flagship event for 2027 or 2028, on the site Make WordPress Community:
After my participation in 2023, if it's in Europe, I'd love to be on the…

January 2026

Jan 31 Sat · 05:47

Meta med

Wrote a comment on the post Should 1024-bit certificates be removed from the root certificate bundle?, on the site Make WordPress Hosting:
This situation feels very similar to how WordPress has historically handled old PHP versions. When…

Jan 28 Wed · 15:02

Forums med

Posted a reply to Alerta de dependabot: Unsafe deserialization dentro de wp-includes, on the site Foros de soporte:
Es un CVE conocido y parcheado. En cualquier caso, si lo que tienes en producción…