Performance
· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
938 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.81 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
689 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.029
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.41 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
3.51 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2508ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://peerpush.com/_next/static/chunks/3x9_sveuh2943.js | 1634ms | 1169ms | 7ms | 3rd |
| https://peerpush.com/ | 607ms | 33ms | 24ms | 3rd |
| Unattributable | 184ms | 9ms | 0ms | 1st |
| https://peerpush.com/_next/static/chunks/1gx0t6fo2fzbv.js | 83ms | 73ms | 6ms | 3rd |
DPage Weight InventoryAction125 resources · 1.5 MB · 147 KB savings availableFIX
~147.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 125 resources | 1.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.5 MB transferred, 125 requestsREVIEW
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
BImage Optimization46 images, 0 KB saveableREVIEW
BJS Bundles45 scripts, 147 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://peerpush.com/_next/static/chunks/1gx0t6fo2fzbv.js | 117 KB | 66 KB (57%) | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/0yf5e_h2z331d.js | 87 KB | 45 KB (53%) | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/3x9_sveuh2943.js | 103 KB | 37 KB (36%) | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/3myn324_y_u8b.js | 20 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/13gl2va34q5f5.js | 3 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/1mi-qs29fri4c.js | 3 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/turbopack-0rw29v8dsd-kr.js | 6 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/1-b5ftzm7nzcx.js | 5 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/3b848cd2bdgg1.js | 11 KB | — | ✓ | 3rd |
| https://peerpush.com/_next/static/chunks/04az5ozmhd0ov.js | 13 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (30 KB)PASS
Web fonts
1
30 KB total
Render-blocking
0
of 1
Dominant font-display
swap
Most common across fonts
Font loading timeline
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall125 requests over 2869msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
peerpush.com peerpush.com | Other | 1634ms | 103 KB | 36% | €18/mo | Costly |
peerpush.com peerpush.com | Other | 607ms | 155 KB | — | €7/mo | Costly |
peerpush.com peerpush.com | Other | 83ms | 117 KB | 57% | €1/mo | Optional |
These scripts may cost more than they're worth
- peerpush.com adds 1634ms and costs ~€18/month
- peerpush.com adds 607ms and costs ~€7/month
93% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
peerpush.com takes 1634ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
peerpush.com takes 607ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
57% of peerpush.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Image Optimization176 images, 23 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
176
Total Size
23 KB
Oversized
7