Lighthouse Lambda
PoC for serverless website performance testing.
The easiest way to get this up and running is with Vercel. The API can be deployed to each Vercel region (the origins) to run the test from 15+ different locations around the world. Get started by using the deploy button below.
As Vercel functions are just AWS Lambda functions under the hood, it's likely that this code will work on AWS without much alteration - but this hasn't been tested.
Usage
Make sure to have the Vercel CLI installed.
npm i -g vercel
Deploy the API to each region that you want to test from.
vercel --regions REGION_ID --prod
Once deployed, make GET requests each API endpoint like so:
https://deployment-url.now.sh/api/lighthouse?url=https://example.com
After about 10 seconds you should see a result like the following:
{
"userAgent": "Mozilla/5.0 ...",
"environment": {
"networkUserAgent": "Mozilla/5.0 ko) ...",
"hostUserAgent": "Mozilla/5.0 ...",
"benchmarkIndex": 100
},
"lighthouseVersion": "5.6.0",
"fetchTime": "2020-05-17T14:40:20.832Z",
"requestedUrl": "https://example.com/",
"finalUrl": "https://example.com/",
"runWarnings": [],
"audits": {
"first-contentful-paint": {
"id": "first-contentful-paint",
"title": "First Contentful Paint",
"description": "First Contentful Paint marks...",
"score": 1,
"scoreDisplayMode": "numeric",
"numericValue": 807.65,
"displayValue": "0.8Â s"
},
...
Then the results can be aggregated for an overall score.
For more detailed information about how the Lighthouse test works, see the Lighthouse repo.