How to Monitor Page Load Time Across Your Entire Site (30 Lines of Node.js)

You can't fix what you don't measure. Most teams check page speed occasionally — run Lighthouse on the homepage, feel good, move on. Meanwhile, three product pages and two blog posts are loading in 4+ seconds and quietly tanking conversion. Here's a script that checks every page you care about, flags the slow ones, and can run automatically every week in GitHub Actions. What the SnapAPI analyze endpoint returns The /v1/analyze endpoint runs a real Chromium browser against any URL and returns structured data — including load_time_ms , which is the time from request start to networkidle (fully loaded, no pending requests). // npm install snapapi-sdk const { SnapAPI } = require ( ' snapapi-sdk ' ); const client = new SnapAPI ( process . env . SNAPAPI_KEY ); const data = await client . analyze ( ' https://yoursite.com/pricing ' ); console . log ( data . load_time_ms ); // e.g. 2341 console . log ( data . word_count ); // e.g. 1847 console . log ( data . technologies ); // ["React", "Vercel