Hacker News PWA

Hacker News readers as Progressive Web Apps
Added 3 days ago, Updated 11 hours ago


Aggregated ChecksScore
App can load on offline/flaky connections100
Page load performance is fast98
Site is progressively enhanced100
Network connection is secure100
User can be prompted to Add to Homescreen100
Installed web app will launch with custom splash screen100
Address bar matches brand colors100
Design is mobile-friendly100
Uses HTTPStrue
Redirects HTTP traffic to HTTPStrue
Registers a Service Workertrue
Responds with a 200 when offlinetrue
Has a `<meta name="viewport">` tag with `width` or `initial-scale`true
Manifest's `display` property is settrue
Contains some content when JavaScript is not availabletrue
First meaningful paint97
Perceptual Speed Index96
Estimated Input Latency100
Time To Interactive (alpha)98
User Timing marks and measurestrue
Critical Request Chainsfalse
Manifest existstrue
Manifest contains `background_color`true
Manifest contains `theme_color`true
Manifest contains icons at least 192pxtrue
Manifest contains icons at least 144pxtrue
Manifest contains `name`true
Manifest contains `short_name`true
Manifest's `short_name` won't be truncated when displayed on homescreentrue
Manifest contains `start_url`true
Has a `<meta name="theme-color">` tagtrue
Content is sized correctly for the viewporttrue
Avoids deprecated APIstrue
Element aria-* attributes are allowed for this roletrue
Elements with ARIA roles have the required aria-* attributestrue
Element aria-* attributes have valid valuestrue
Element aria-* attributes are valid and not misspelled or non-existent.true
Background and foreground colors have a sufficient contrast ratiotrue
Every image element has an alt attributetrue
Every form element has a labeltrue
No element has a `tabindex` attribute greater than 0true
Avoids enormous network payloads98
Unoptimized imagesfalse
Oversized Imagesfalse
Avoids Application Cachetrue
Avoids an excessive DOM size100
Opens external anchors using rel="noopener"true
Avoids requesting the geolocation permission on page loadtrue
Render-blocking Stylesheetsfalse
Avoids `console.time()` in its own scriptstrue
Avoids `Date.now()` in its own scriptstrue
Avoids `document.write()`true
Avoids Mutation Events in its own scriptstrue
Avoids old CSS flexboxtrue
Avoids WebSQL DBtrue
Avoids requesting the notification permission on page loadtrue
Render-blocking scriptstrue
Uses HTTP/2 for its own resourcestrue
Uses passive listeners to improve scrolling performancetrue


PageSpeed Insights


  "name": "Hacker News PWA",
  "short_name": "HN PWA",
  "description": "Hacker News readers as Progressive Web Apps",
  "theme_color": "#F4751E",
  "background_color": "#FFFFFF",
  "start_url": "/",
  "display": "standalone",
  "icons": [
      "src": "/assets/images/favicon.png",
      "type": "image/png",
      "sizes": "512x512"