Developing the Largest Contentful Paint Metric
tl;dr: A new performance metric has been established by the Chrome team measuring when the main contents of a page is displayed. This runs through the framework used to build this metric and the objective.
featured in #166
Moving Towards A Faster Web
tl;dr: The Chrome team are in development of "badging", a method of identifying sites that are built in "a way that makes them slow" by looking at historical load latencies. In the future, such information may be communicated to users.
featured in #161
Shared Cache Is Going Away
tl;dr: A single cache is a security risk, browsers are responding by partitioning the cache. As a result, developers "won't get performance benefits from using a canonical URL over hosting on their own site."
featured in #160
Techniques To Make A Web App Load Fast, Even On A Feature Phone
tl;dr: Always measure before optimizing performance. Effective optimization methods are (1) deliver as many assets over one connection (2) preload assets for the first render / interactivity (3) prerender app to improve perceived loading performance (4) aggressive code splitting to reduce the amount of code needed for interactivity.
featured in #155
Fast Software, the Best Software
tl;dr: When you experience software, apps that perform quickly build trust. When applications are bloated, take time to load or function a command, we tend to distrust them and we lose our "flow". Aim to build fast, light, software. The author cycles through many examples of what he likes and doesn't.
featured in #149
Speed At Scale - What's New In Web Performance?
tl;dr: (1) Lighthouse supports Performance Budgeting (2) Native image and iframe lazy-loading comes to the web (3) Google Fonts now supports font-display as a query parameter.
featured in #143
Improving Third-party Web Performance At The Telegraph
tl;dr: Biggest challenge was organizational - meeting demands from various stakeholders. This was tackled by creating a cross-departmental working group. Articles outlines how deferring JS had significant impact on performance and tools used to monitor it.
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featured in #139
Native Image Lazy-loading For The Web!
tl;dr: New loading attribute for images and iframes helps content load quicker, reduces network data usage and reduces memory usage. It should be shipped as part of Chrome 75.
featured in #136