performance-leaderboard-pagespeed-insights
v9.6.7
Published
A plugin to run Lighthouse (on PageSpeed Insights) against a set of urls to see which site is the fastest.
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performance-leaderboard-pagespeed-insights
A plugin to run Lighthouse (on PageSpeed Insights) against a set of urls to see which site is the fastest.
- See also:
performance-leaderboard
(which runs Lighthouse locally)
Installation
npm install performance-leaderboard-pagespeed-insights
Features
- This plugin only runs one test against the PageSpeed Insights API per URL. In contrast,
performance-leaderboard
offers a configurable number of runs per URL and selects the median.
Usage
- Create a test file, say
sample.js
:
const PerfLeaderboard = require("performance-leaderboard-pagespeed-insights");
(async function() {
let urls = [
"https://www.gatsbyjs.org/",
"https://nextjs.org/",
"https://www.11ty.dev/",
"https://vuejs.org/",
"https://reactjs.org/",
"https://jekyllrb.com/",
"https://nuxtjs.org/",
"https://gohugo.io/",
];
// Create the options object (not required)
const options = {
axePuppeteerTimeout: 30000, // 30 seconds
writeLogs: true, // Store audit data
logDirectory: '.log', // Default audit data files stored at `.log`
readFromLogDirectory: false, // Skip tests with existing logs
}
console.log( await PerfLeaderboard(urls) );
})();
- Run
node sample.js
.
[
{
url: 'https://www.11ty.dev/',
requestedUrl: 'https://www.11ty.dev/',
timestamp: 1623525988492,
ranks: { hundos: 1, performance: 1, accessibility: 1, cumulative: 1 },
lighthouse: {
version: '8.0.0',
performance: 1,
accessibility: 1,
bestPractices: 1,
seo: 1,
total: 400
},
firstContentfulPaint: 1152.3029999999999,
firstMeaningfulPaint: 1152.3029999999999,
speedIndex: 1152.3029999999999,
largestContentfulPaint: 1152.3029999999999,
totalBlockingTime: 36,
cumulativeLayoutShift: 0.02153049045138889,
timeToInteractive: 1238.3029999999999,
maxPotentialFirstInputDelay: 97,
timeToFirstByte: 54.63900000000001,
weight: {
summary: '14 requests • 178 KiB',
total: 182145,
image: 124327,
imageCount: 10,
script: 7824,
scriptCount: 1,
document: 30431,
font: 15649,
fontCount: 1,
stylesheet: 3914,
stylesheetCount: 1,
thirdParty: 15649,
thirdPartyCount: 1
},
run: { number: 2, total: 3 },
axe: { passes: 850, violations: 0 },
}
]
Rankings
In the return object you’ll see a ranks
object listing how this site compares to the other sites in the set. There are a bunch of different scoring algorithms you can choose from:
ranks.performance
- The highest Lighthouse performance score.
- Tiebreaker given to the lower SpeedIndex score.
ranks.accessibility
- The highest Lighthouse accessibility score.
- Tiebreaker given to lower Axe violations.
- Second tiebreaker given to highest Axe passes (warning: each instance of an Axe rule passing is treated separately so this will weigh heavily in favor of larger pages)
ranks.hundos
- The sum of all four Lighthouse scores.
- Tiebreaker given to the lower Speed Index / Total Page Weight ratio.
ranks.cumulative
(the same ashundos
but with an Axe tiebreaker)- The sum of all four Lighthouse scores.
- Tiebreaker given to the lower Axe violations.
- Second tiebreaker given to the lower Speed Index / Total Page Weight ratio.
Changelog
v9.6.6
Initial release.