Martin Schierle martinschierle
martinschierle
/ cwv_crawler.js
Last active
August 3, 2020 12:39
Small puppeteer script to run over a domain, crawl random urls, capture screenshots with lcp and cls elems highlighted, and also writing out a heatmap of lcp and cls bounding boxes across all crawled pages.
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| const puppeteer = require('puppeteer'); | |
| const { createCanvas, loadImage } = require('canvas') | |
| const mustache = require('mustache') | |
| var fs = require('fs'); | |
| const fsExtra = require('fs-extra') | |
| let MAX_URLS = 50; | |
| let TEMPLATE = fs.readFileSync('template.html', 'utf8'); |