@samarpanda

Web performance, react, graphQL, security, nodejs, speaker & I love the web. Software Architect @Quikr.

 Bangalore
samarpanda.com
Joined December 2009
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98Media
I was lucky enough to author a chapter for this year's Web Almanac. Thanks to @TheGreenGreek Nitin @tunetheweb @AndyDavies @samarpanda @westonruter and @rick_viscomi for your superb help. 💪 Give it a read and let me know what you think. almanac.httparchive.org/en/2…

Resource Hints | 2021 | The Web Almanac by HTTP Archive

Resource Hints chapter of the 2021 Web Almanac covering adoption of resource hints, their uses, bad practices, and their impact on performance.

almanac.httparchive.org
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Looking at @Akamai mPulse data across thousands of sites, the Facebook/Instagram in-app mobile browser represents 4.4% of all mobile page views. During today's outage, traffic from those in-app browsers plummeted.
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Web Vitals Patterns: web.dev/patterns/web-vitals-… See how to implement common UX patterns in a way that is Core Web Vitals friendly. Includes carousels, banners, infinite scroll, & more.

Core Web Vitals  |  web.dev

web.dev
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I once ran a WebPageTest test and all I got was this humongous blog post! 😃 nooshu.github.io/blog/2019/1…

How to read a WebPageTest Waterfall View chart

WebPageTest waterfall charts are a very powerful web performance tool, but can sometimes be a little confusing. Maybe...

nooshu.com
WebPageTest™@RealWebPageTest14 May 2021
Hi fellow Performance folk, excited to be here! Before we start posting great #webperf content, we wanted to hear your favorite WPT(.org) memories. We're total suckers for nostalgia :) Share your #WebPageTest story if you got one 👇
I ran a WebPageTest and...Insert Story.

ALT I ran a WebPageTest and...Insert Story.

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PageSpeed Insights now includes Lighthouse's element screenshots! goo.gle/psi Find your page's most important elements even more quickly; click on the screenshot to reveal the element in the context of the whole page 🔎🖼
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Thanks to @Janicklas, Next.js can now automatically inline Critical CSS ✨ Feature is experimental and behind a flag, but we'll love to hear your feedback: 1. Add `experimental: { optimizeCss: true }` to next.config.js 2. Install critters@0.0.7 as a dependency And that's it!
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Samar Panda retweeted
Addy Osmani
@addyosmani7 Mar 2021
CSS "content-visibility:auto" is amazing: skip rendering & painting offscreen content until needed. I got a ~1s faster render on a long HTML document on desktop, ~3s on mobile. web.dev/content-visibility/
The CSS content-visibility property enables the browser to skip an element's rendering work, including layout and painting, until it is needed. Because rendering is skipped, if a large portion of your content is off-screen, leveraging the content-visibility property makes the initial user load much faster. In this screenshot, to the left is a partial screenshot of a long web page with a high rendering and painting time. To the right is a version with content-visibility used on sections of the page, heavily reducing overall rendering times.

ALT The CSS content-visibility property enables the browser to skip an element's rendering work, including layout and painting, until it is needed. Because rendering is skipped, if a large portion of your content is off-screen, leveraging the content-visibility property makes the initial user load much faster. In this screenshot, to the left is a partial screenshot of a long web page with a high rendering and painting time. To the right is a version with content-visibility used on sections of the page, heavily reducing overall rendering times.

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👩‍🚀 Introducing 𝗪𝗠𝗥: The tiny all-in-one development tool for modern web apps. Everything you need to build a fast Preact site, from dev to prod. 🦄 TSX, HMR, CSS Modules, etc 🦦 use npm modules without installing 📦 one 2mb file, no dependencies → github.com/preactjs/wmr
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🚨 Did you know the IMG tag was introduced 25 yrs ago TODAY on Nov 24th 🎂🎉, as part of the HTML 2.0 spec -or- RFC 1866. In celebration, I’d like to release the videos from IMAGE READY, a series of talks on modern images, recorded Oct 2. A thread ⬇ #imageReady
IMAGE READY: THE VIDEOS. a series of talks about modern web image formats, and tooling. avif. webp. jpeg xl. htjpg2000. lighthouse. layout shift. squoosh! app.

ALT IMAGE READY: THE VIDEOS. a series of talks about modern web image formats, and tooling. avif. webp. jpeg xl. htjpg2000. lighthouse. layout shift. squoosh! app.

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✨ Perf Track ✨ Ever wanted to know how many Angular sites aren't compressed, or how many Vue pages are "fast", or how many React sites ship over 1 MB of JavaScript? Perf Track collects all this information, and more, from @HTTPArchive and CrUX 🚀 perf-track.web.app/
Perf Track is a dashboard that tracks performance of sites that use JavaScript frameworks at scale

ALT Perf Track is a dashboard that tracks performance of sites that use JavaScript frameworks at scale

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Samar Panda retweeted
MDN Web Docs@MozDevNet6 Jul 2020
Firefox 7⃣8⃣ enables link rel=”preload” support. The preload value of the <link> element's rel attribute lets you declare fetch requests in the HTML's <head>, specifying resources before browsers' rendering kicks in. developer.mozilla.org/en-US/…

rel="preload" HTML attribute value - HTML | MDN

The preload value of the element's rel attribute lets you declare fetch requests in the HTML's , specifying resources that your page will need very soon, which you want to start loading early in the...

developer.mozilla.org
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📢 Announcing Core Web Vitals support across all your favorite developer tools! web.dev/vitals-tools - PageSpeed Insights - Lighthouse + CI - Chrome DevTools - Chrome UX Report - Search Console ...and more!
Core Web Vitals now in your favorite developer tools. PageSpeed Insights [LCP, FID, CLS], Chrome UX Report [LCP, FID, CLS], Search Console [LCP, FID, CLS], Chrome DevTools and Lighthouse [LCP, TBT, CLS] and the Web Vitals extension [LCP, FID, CLS]

ALT Core Web Vitals now in your favorite developer tools. PageSpeed Insights [LCP, FID, CLS], Chrome UX Report [LCP, FID, CLS], Search Console [LCP, FID, CLS], Chrome DevTools and Lighthouse [LCP, TBT, CLS] and the Web Vitals extension [LCP, FID, CLS]

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Snyk
@snyksec14 May 2020
🎉 We are happy to announce the launch of the security score insights on WebPageTest buff.ly/3dKuXm9 #performance #security
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Introducing web-worker: Native universal Web Workers 1️⃣ one import for web + Node 🧰 the same Web Worker API everywhere 🏎 uses worker_threads and native ESM 🕸 zero-cost in the browser 📦 works in npm modules github.com/developit/web-wor…
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Samar Panda retweeted
Mathias Bynens@mathias16 Apr 2020
Puppeteer v3.0.0 is out! 🔥 ➡️ Chromium 81 ➡️ no more Node.js 8 support ➡️ install a Firefox binary: PUPPETEER_PRODUCT=firefox npm install puppeteer
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📢 Exciting Project Fugu 🐡 API announcement: Notification Triggers allows you to schedule local notifications that don't require a network connection, which makes them ideal for use cases like 🗓 calendar apps. Read all about the API in @tomayac's post: web.dev/notification-trigger…

Notification Triggers API  |  Web Platform  |  Chrome for Developers

The Notification Triggers API allows developers to schedule local notifications that don't require a network connection, which makes them ideal for use cases like calendar apps.

developer.chrome.com
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Samar Panda retweeted
Tim Kadlec@tkadlec9 Apr 2020
These stats from Fastly about traffic change and download speed change during the pandemic are pretty staggering. Performance has, very literally, never been more important. fastly.com/blog/how-covid-19…
A table showing the impact of COVID on internet traffic and download speed. Highlights: France, traffic +38.4%, download -13.9%; Italy, traffic +109.3%, download -35.4%; United Kingdom, traffic +78.6%, download -30.3%; USA - Michigan, traffic +37.9%, download -16.1%; USA - NY and NJ, traffic +44.6%, download -5.5%; Spain, traffic +39.4%, download -8%; Japan, traffic +31.5%, download -9.7%

ALT A table showing the impact of COVID on internet traffic and download speed. Highlights: France, traffic +38.4%, download -13.9%; Italy, traffic +109.3%, download -35.4%; United Kingdom, traffic +78.6%, download -30.3%; USA - Michigan, traffic +37.9%, download -16.1%; USA - NY and NJ, traffic +44.6%, download -5.5%; Spain, traffic +39.4%, download -8%; Japan, traffic +31.5%, download -9.7%

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Samar Panda retweeted
Treo@__treo5 Mar 2020
To learn more about best practices and how to improve notifications acceptance rate for your website. Check out the fantastic 5-minute video by @b1tr0t youtube.com/watch?v=riKmez3s… Thanks 🙏
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Addy Osmani
@addyosmani16 Feb 2020
Tip: gitexplorer.com helps you find the right git commands quickly. Super handy reference.
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Samar Panda retweeted
Nic Jansma@nicj1 Feb 2020
In Brussels getting ready for my talk about Boomerang and lessons learned auditing its performance at #FOSDEM2020. Watch it live at 3pm CEST live.fosdem.org/watch/h1309
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