Sifty Requests Filter
2022-02-10Filter, search and sort network requests from WebPageTest or Lighthouse JSON files
Tagged “web-performance”
About Sifty
2022-02-09Filter and search network requests in WebPageTest and Google Lighthouse JSON files
The Page Speed Hackathon
2021-12-22Seeding a performance culture in a large organization by gamifying cross-discipline teamwork
Experiment with Priority Hints Locally
2021-11-18Use Chrome Local Overrides to see how you could influence the order of resource downloads
How to Reduce the Carbon Cost of Video Conferencing: A Concept
2021-10-03Some crafty UX and performance optimization could help reduce bytes transferred and energy used by video calls
Using The WebPageTest API with Python
2021-09-02Run custom, scripted and batch tests with the ease and stealth of Python.
WebPageTest Sorcery Using Google Sheets
2021-06-30How to pull JSON from the Web and work with it directly in Google Sheets
Compare your site speed with competitors' using the CrUX API
2021-06-18Send batch requests to the Chrome UX Report API for Web Vitals using Python and compare the numbers in a spreadsheet
Using Chrome Local Overrides To Optimize Page Speed
2021-05-03How to test ideas for making web pages faster and measure their potential impact – without a single deployment
Cookie Banners and Web Vitals
2021-03-29Is your cookie banner punching you in the Web Vitals? 🥊 Then stop treating it like critical content.
Performant Placeholders
2021-03-12Why use placeholder images? How can you load them quickly? How do they affect Largest Contentful Paint? An analysis.
Green by Default
2020-12-14This simple psychological trick could vastly reduce tech's carbon footprint.
How Search Engines Could Help Us Surf More Safely and Sustainably – a Concept
2020-12-02If you knew beforehand how much a website costs in terms of time, money, privacy and the environment – would you still visit it?
Using Python to Read Multiple JSON Files and Export Values to a CSV
2020-08-26Comparing data from multiple JSON files can get unweildy – unless you leverage Python to give you the data you need.
Do I Need a CDN for My Personal Website?
2020-07-07I shaved a whole second off page load times by hosting my personal website on a CDN. But now I'm not sure how energy-efficient it is.
How GDPR and ePrivacy Will Make the Web Faster and More Sustainable. Sorta.
2020-01-17The Web is about to get a whole lot more secure, faster – and more sustainable. At least in Europe.
Testing a Website from Different Locations Using WebPagetest? Watch Out for This
2020-01-08Strangly, my website seemed to render faster outside of the country it's hosted.
3 Reasons to Kill 3rd-Party Trackers on Your Site RIGHT NOW
2019-10-27For decades, marketers have tracked user behavior online. But that data-gorging is coming to an end. Remove 3rd-party marketing tags from your site TODAY to better protect user data and improve page loading times.
Getting a Perfect 100 Google Lighthouse Score On Your Personal Site (Part II)
2019-07-18How I handled CSS, JS, images, compression and caching on my Eleventy-based site
Getting a Perfect 100 Google Lighthouse Score On Your Personal Site (Part I)
2019-07-18Wordpress vs. Static Site Generators – Which is Faster ⚡️for Personal Sites?
How to Build a Website Speed Monitor for Free Using Webpagetest, Google Lighthouse, InfluxDB and Grafana
2019-03-24Test and monitor webpage performance how, when and where you want – for free.