Preloading with care
Resource hints or preloading is hot, I see it more and more in an attempt to (allegedly) improve website/shop performance, by preloading some assets.
Pagespeed findings
Can't get enough? I'm regularly sharing snack bite tips and advice on LinkedIn as well.
Fast, accessible and data-saving websites
Although most of my work is pagespeed-related, I also like to address web accessibility and carbon emission when doing R&D for our website-producing CMS.
Encrypting DNS query bad for performance?
DNS over HTTPS, Mozilla and Chrome already started experimenting with this a while back, to encrypt the last part of web traffic that isn't secure yet by default. But what really is the impact on privacy, security, as well as performance?
Slides of Tweakers frontend performance talk
Last Thursday, I spoke at the sold out Tweakers Developers Summit. I talked about performance with a bit of conversion/UX/SEO/AMP and PWA.
Web push notifications and acceptance rate
Have websites been misusing push notifications? Website owners started to abuse push notifications with user complaints as a result. The idea was great, but now Google itself is stopping it.
Data-vocabulary.org schema deprecated, BreadcrumbList glitch
As of April 6, 2020, data-vocabulary.org markup will no longer be eligible for Google rich result features. Nothing new here for webdevelopers and SEO specialist out there. However..
CSS Critical Path in Magento 1
Last Thursday, January 16th, I joined TJ Gamble's livestream to answer some PageSpeed related questions. Critical CSS was one of the subjects. Just before the livestream, I published a code snippet to auto-enable CSS critical Path within Magento 1.
PWA, the untold story impacting your conversion
Progressive Web Apps have quite some advantages. The biggest one being a web-product with a native-like feeling. But it is also fast and mobile first, or rather should be. This is the untold story about PWA, impacting your conversion.
Chromium: badge of shame for slow loading websites?
Twitter exploded when Chromium announced it. Chromium is describing it as "Moving towards a faster web", which is a clear signal towards digital agencies and other websites builders. What to expect?
Improved pagespeed: Critical CSS introduced in Magento
As of version 2.3.3, Magento introduced CSS critical path. Users will experience a faster loading product-page when applied (correctly)!
What Google didn't tell you at Magento Live
Have you been to Magento Live in Amsterdam and did you speak the Google PageSpeed crew about your pagespeed score? I already heard some e-commerce owners, the Google PageSpeed crew might have given you some wrong insights, which I am going to answer instead.
Skeleton loading and perceived performance / CRO
Should you favor skeleton loading over spinner loading, and what would be the difference between building a PWA or server rendered website?
Light weight websites with Save-Data header
We all use JS, custom fonts, images and maybe even video's within our website or webshop. We can now reduce our load and speed up article- or product pages based on user preferences.
Belsimpel's productpage pagespeed
A better perceived performance and thus user experience, will result in higher conversion and thus revenue.
Optimizing e-commerce supplier and cost efficiency
You want your e-commerce to use most supplier-efficient and cost friendly delivering process. At the same time, you want to keep calculations and thus memory outbursts to a minimum.
Improving a webshop productpage pagespeed
Before helping an e-commerce company with improving their pagespeed, sometimes I create a proof of concept first. By doing this, stakeholders will get a better grasp of what can be achieved in real life.
Performance metrics: LCP replacing FMP
First Meaningful Paint is one of the six performance metrics tracked and displayed by Lighthouse. It measures when the primary content of a page is visible, but is more of a guess. It became time for a new metric.
Boost web performance with www domain prefix
You might want to publish your (new) website or webshop on the www-prefix of your domain. This will decrease network latency, when doing it the other way around for your images, making your online business even faster.
What CMS to use for optimale TTFB (and sitespeed?)
With which CMS do you have the greatest chance of a fast or slow website? And which (managed) hosting is best?
Lessons learned: accessibility of your e-commerce productpage
Last monday, I visited Wehkamp. They boosted the pagespeed of their productpages after taking part in a Google Speed Race and ending up second.