Performance
· 15 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.
2.75 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.82 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
635 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.94 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.
5.75 s
Page Load Progression
FPage Weight BudgetAction4.7 MB transferred, 125 requestsFIX
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
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
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
DJS Execution CostAction2924ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://s1-c.pinimg.com/webapp/www/_client-976aa3e3a9606a86.mjs | 1282ms | 1107ms | 55ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 508ms | 454ms | 36ms | 3rd |
| Unattributable | 269ms | 7ms | 0ms | 3rd |
| https://au.pinterest.com/ | 254ms | 5ms | 3ms | 3rd |
| https://s1-c.pinimg.com/webapp/31320-886f3360faf27a7c.mjs | 163ms | 89ms | 1ms | 3rd |
| https://s1-c.pinimg.com/webapp/app-www-homepage-DesktopInspiredWallSignup-5d601faa5c5c1ea4.mjs | 98ms | 85ms | 12ms | 3rd |
| https://okra.pinterest.com/v2/F7C0768A-A5B0-422A-BC5F-5912456296EE/api.js | 87ms | 42ms | 15ms | 3rd |
| https://s1-c.pinimg.com/webapp/vendor-react-fa26396fbb65a22a.mjs | 74ms | 22ms | 32ms | 3rd |
| https://accounts.google.com/gsi/client?hl=en | 73ms | 52ms | 10ms | 3rd |
| https://s1-c.pinimg.com/webapp/38794-4537576a65b1938c.mjs | 61ms | 55ms | 1ms | 3rd |
Showing top 10 of 11 scripts
FJS BundlesAction76 scripts, 1.4 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://s1-c.pinimg.com/webapp/www/_client-976aa3e3a9606a86.mjs | 272 KB | 163 KB (60%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 157 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 157 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 157 KB (43%) | ✓ | 3rd |
| https://s1-c.pinimg.com/webapp/vendor-react-fa26396fbb65a22a.mjs | 134 KB | 75 KB (56%) | ✓ | 3rd |
| https://s1-c.pinimg.com/webapp/gestalt-ffb1fe0d1cf57ef3.mjs | 233 KB | 75 KB (32%) | ✓ | 3rd |
| https://s1-c.pinimg.com/webapp/68755-00b6737428b3eb6d.mjs | 102 KB | 65 KB (64%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client?hl=en | 96 KB | 63 KB (66%) | ✓ | 3rd |
| https://okra.pinterest.com/v2/F7C0768A-A5B0-422A-BC5F-5912456296EE/api.js | 104 KB | 60 KB (59%) | ✓ | 3rd |
| https://s1-c.pinimg.com/webapp/app-www-homepage-DesktopInspiredWallSignup-5d601faa5c5c1ea4.mjs | 70 KB | 56 KB (80%) | ✓ | 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 InventoryAction125 resources · 4.7 MB · 1.4 MB savings availableFIX
~1.4 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 125 resources | 4.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization16 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 (170 KB)PASS
Web fonts
6
170 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 HintsNo optimization neededPASS
Network Waterfall125 requests over 6392msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
s1-c.pinimg.com s1-c.pinimg.com | Other | 1282ms | 272 KB | 60% | A$22/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 508ms | 0 KB | 43% | A$9/mo | Costly |
Unattributable Unattributable | Other | 269ms | 0 KB | — | A$5/mo | Costly |
au.pinterest.com au.pinterest.com | Other | 254ms | 96 KB | — | A$4/mo | Costly |
s1-c.pinimg.com s1-c.pinimg.com | Other | 163ms | 11 KB | — | A$3/mo | Optional |
s1-c.pinimg.com s1-c.pinimg.com | Other | 98ms | 70 KB | 80% | A$2/mo | Optional |
okra.pinterest.com okra.pinterest.com | Other | 87ms | 104 KB | 59% | A$2/mo | Optional |
s1-c.pinimg.com s1-c.pinimg.com | Other | 74ms | 134 KB | 56% | A$1/mo | Optional |
accounts.google.com accounts.google.com | Other | 73ms | 96 KB | 66% | A$1/mo | Optional |
s1-c.pinimg.com s1-c.pinimg.com | Other | 61ms | 8 KB | — | A$1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 56ms | 78 KB | 63% | A$1/mo | Optional |
These scripts may cost more than they're worth
- s1-c.pinimg.com adds 1282ms and costs ~A$22/month
- www.gstatic.com adds 508ms and costs ~A$9/month
- Unattributable adds 269ms and costs ~A$5/month
- au.pinterest.com adds 254ms and costs ~A$4/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-c.pinimg.com takes 1282ms 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-c.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
www.gstatic.com takes 508ms 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
Unattributable takes 269ms 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
au.pinterest.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
80% of s1-c.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
59% of okra.pinterest.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
56% of s1-c.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
66% 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
63% of Facebook Pixel'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