new post: I'm a strong proponent of extensive automated testing, but there is still an essential role for Exploratory Testing https://t.co/ZGdTaLkAMu

Testing all the edge cases before deploying to production ;)

What a great role model: Switzerland has decided that the source code of online voting systems must be published and the systems need to be publicly tested. Bounty up to 50,000 Swiss francs!

Thanks to everyone who listened to me ramble on at #webexpo. You can find the deck and references here:

Great ideas to overcome the challenges in achieving "Continuous Test Automation".

Twitter announces Iago, an open-source, distributed tool to load test microservices at scale. https://t.co/RHIkD7SEM1 Also find out how Twitter uses Iago to prepare for traffic spikes, like The World Cup 2018.

📢 I just published a new article where I do a deep dive into improving website performance with a technique I'm calling Idle Until Urgent. ⚡ If you're looking for some advanced performance techniques that you can use today, this article is for you! https://t.co/A2zV1oKNYJ

Fixing bugs after go-live 😂

The Web Font Loading Checklist ✅ Start font downloads early ➡️ preload Prioritize readable text ➡️ font-display Make fonts smaller ➡️ WOFF2, subset https://t.co/yElpHTk6PR by @zachleat 👍

Learn how to reduce JavaScript payloads with Code Splitting: https://t.co/PK0PzJ5cMl ~ new guide by @malchata and I 📦✂️⚡️

JavaScript is still the most expensive resource on a Web page. @addyosmani from Google shares strategies you can use to deliver JavaScript efficiently while still giving users a valuable experience.

This upcoming new feature in Google Chrome browser could speed up page loading for the entire Internet. https://t.co/9yZVc4igcr #LazyLoading

📣 "The Cost Of JavaScript In 2018"

Performance Techniques with new Web APIs ⚡️ - https://t.co/0Xq8rE7z2f - Interesting slide deck with mentions on event debouncing, will-change, CSS Containment, layout thrashing & a few others

Deploying software in production without testing 🙅‍♂️

Front-End Performance Checklist ⚡ - https://t.co/BktWIA5mdK - A prioritised list of of web performance techniques using HTML, CSS, JavaScript & more. Includes lots of links and descriptions for further reading ✅

Measure web performance with the RAIL model: https://t.co/7cVYtwb6Tx - goals and guidelines for faster pages. Updated for 2018 ⚡️

Building the Google Photos Web UI: https://t.co/fndQVEE56x — turns out, a "simple" photo grid ain't so simple and a performant grid is no small feat! An awesome under the hood look at the magic behind Google Photos layout.

It is ironic that https://t.co/FrR6RPU5ot crashed under load on their biggest shopping event of the year. Isn't AWS Auto-Scaling and Elasticity supposed to take care of this? #PrimeDay #Fail

Page speed is now a ranking factor for mobile search! 👏 Now's the time to audit your site with Lighthouse, PageSpeed Insights, and check your stats in @ChromeUXReport! #perfmatters