Slides from WordCamp Rotterdam - a presentation on performance and WordPress websites.

1. SNELHEID, SPEED, AGILITY,
ACCELERATION,
QUICKNESS… WAT WIL JE
NU?

2. QUICKNESS, SPEED,
AGILITY, ACCELERATION…
WHAT DO YOU WANT?

3. Pieter Daalder
Twitter: @w1zz
Co-organizer: WordCamp Noord-
Nederland 2018
Organizer: WP Meetup Grunn
WP Expert at Vevida
Owner at Studio Daalder

4. What is this “Good performance”
everybody is talking about?

5. Time to first byte ( TTFB )
Total data transferred

6. Time to first byte ( TTFB )
Is it happening?
Is it useful?
Is it usable?

7. Time to first byte ( TTFB )
First Meaningful Paint ( FMP )
Hero element timing
Time to interactive ( TTI )
First Paint ( FP )
Is it happening?
Is it useful?
Is it usable?

8. User-centric Performance Metrics
Optimize for users, not for lab-tests

9. Google Pagespeed (Lighthouse)

10. Your browser

11. What is this “Good performance”
everybody is talking about?

12. Optimize WordPress
Plugin: Query Monitor
Minimize external requests
Limit post revisions
Use the latest version of PHP (7.3)

13. Caching
Database caching
Client-Side caching
Opcode caching
Page Caching

14. Caching
Cache static content
Be aware of your cache

15. Content Delivery Network (CDN)
Delivering content closer to the visitor
Possible website caching
Scales easily

16. Content Delivery Network (CDN)
Cloudflare
KeyCDN
Amazon CloudFront (AWS)
Microsoft Azure CDN

17. .