Performance
· 17 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.
12.29 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
14.58 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.78 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.028
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
12.29 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.
26.12 s
Page Load Progression
FPage Weight BudgetAction5.2 MB transferred, 122 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction7564ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://s1-e.pinimg.com/webapp/www/_client-b4ac415d05074d27.mjs | 3770ms | 3310ms | 172ms | 3rd |
| Unattributable | 948ms | 10ms | 0ms | 3rd |
| https://es.pinterest.com/ | 870ms | 116ms | 9ms | 3rd |
| https://s1-e.pinimg.com/webapp/31320-2f5f600dacb7eabb.mjs | 516ms | 269ms | 4ms | 3rd |
| https://s1-e.pinimg.com/webapp/38595-87fa01b988b819e0.mjs | 345ms | 314ms | 30ms | 3rd |
| https://s1-e.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs | 254ms | 90ms | 85ms | 3rd |
| https://accounts.google.com/gsi/client?hl=en | 205ms | 140ms | 35ms | 3rd |
| https://s1-e.pinimg.com/webapp/gestalt-157c96fb7c328b09.mjs | 167ms | 5ms | 148ms | 3rd |
| https://s1-e.pinimg.com/webapp/38794-3d267be7ff31faa6.mjs | 133ms | 112ms | 4ms | 3rd |
| https://s1-e.pinimg.com/webapp/18324-f75b500bbaa8e30e.mjs | 98ms | 1ms | 96ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction68 scripts, 764 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://s1-e.pinimg.com/webapp/www/_client-b4ac415d05074d27.mjs | 272 KB | 163 KB (60%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/gestalt-157c96fb7c328b09.mjs | 233 KB | 78 KB (34%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs | 134 KB | 68 KB (50%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/68755-42e27ad678ffc016.mjs | 102 KB | 65 KB (64%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client?hl=en | 96 KB | 63 KB (67%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/51405-76ae5359063ab8d4.mjs | 63 KB | 54 KB (87%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/38595-87fa01b988b819e0.mjs | 49 KB | 45 KB (93%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/www/index-56bd4a1c5c609157.mjs | 72 KB | 43 KB (60%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/70508-5b5d42c186b06207.mjs | 39 KB | 33 KB (85%) | ✓ | 3rd |
| https://s1-e.pinimg.com/webapp/98202-db0d6f57ba28748c.mjs | 28 KB | 27 KB (99%) | ✓ | 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
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
FPage Weight InventoryAction122 resources · 5.2 MB · 764 KB savings availableFIX
~764.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 122 resources | 5.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization28 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (136 KB)PASS
Web fonts
6
136 KB total
Render-blocking
0
of 6
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 Hints55 hints, 0 missing preconnectsPASS
Current Resource Hints
55 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall122 requests over 2951msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
s1-e.pinimg.com s1-e.pinimg.com | Other | 3770ms | 272 KB | 60% | €41/mo | Costly |
Unattributable Unattributable | Other | 948ms | 0 KB | — | €10/mo | Costly |
es.pinterest.com es.pinterest.com | Other | 870ms | 96 KB | — | €9/mo | Costly |
s1-e.pinimg.com s1-e.pinimg.com | Other | 516ms | 11 KB | — | €6/mo | Costly |
s1-e.pinimg.com s1-e.pinimg.com | Other | 345ms | 49 KB | 93% | €4/mo | Costly |
s1-e.pinimg.com s1-e.pinimg.com | Other | 254ms | 134 KB | 50% | €3/mo | Costly |
accounts.google.com accounts.google.com | Other | 205ms | 96 KB | 67% | €2/mo | Costly |
s1-e.pinimg.com s1-e.pinimg.com | Other | 167ms | 233 KB | 34% | €2/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 133ms | 8 KB | — | €1/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 98ms | 341 KB | — | €1/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 72ms | 102 KB | 64% | €1/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 71ms | 72 KB | 60% | €1/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 60ms | 27 KB | — | €1/mo | Optional |
s1-e.pinimg.com s1-e.pinimg.com | Other | 56ms | 63 KB | 87% | €1/mo | Optional |
These scripts may cost more than they're worth
- s1-e.pinimg.com adds 3770ms and costs ~€41/month
- Unattributable adds 948ms and costs ~€10/month
- es.pinterest.com adds 870ms and costs ~€9/month
- s1-e.pinimg.com adds 516ms and costs ~€6/month
- s1-e.pinimg.com adds 345ms and costs ~€4/month
- s1-e.pinimg.com adds 254ms and costs ~€3/month
- accounts.google.com adds 205ms and costs ~€2/month
100% 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
s1-e.pinimg.com takes 3770ms 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
60% of s1-e.pinimg.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
Unattributable takes 948ms 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
es.pinterest.com takes 870ms 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
s1-e.pinimg.com takes 516ms 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
s1-e.pinimg.com takes 345ms 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
93% of s1-e.pinimg.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
s1-e.pinimg.com takes 254ms 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
50% of s1-e.pinimg.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
accounts.google.com takes 205ms 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
67% of accounts.google.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
64% of s1-e.pinimg.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
60% of s1-e.pinimg.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
87% of s1-e.pinimg.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