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.
1.55 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.54 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.72 s
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.
3.36 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.
10.36 s
Page Load Progression
694 ms 1.4 s
2.1 s
2.8 s 3.5 s 4.2 s
4.9 s
5.5 sFPage Weight BudgetAction17.8 MB transferred, 179 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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 CostAction5499ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://f.vimeocdn.com/cms/_next/static/chunks/18-725eeb4bbb62c8f7.js | 1890ms | 1510ms | 6ms | 3rd |
| https://vimeo.com/features | 935ms | 8ms | 71ms | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/7185-fc224426b2d88e12.js | 624ms | 485ms | 132ms | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/87c73c54-dd8d81ac9604067c.js | 515ms | 428ms | 6ms | 3rd |
| Unattributable | 500ms | 27ms | 0ms | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/4048-99e2b2dcf0c6028c.js | 359ms | 275ms | 21ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-RBKK&l=_gtm | 176ms | 144ms | 26ms | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/fb6eed97-7a2d57b90f7d6188.js | 115ms | 0ms | 113ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-126VYLCXDY&l=_gtm&cx=c>m=4e64h1h1 | 110ms | 90ms | 17ms | 3rd |
| https://js.qualified.com/qualified.js?token=8Q5gZzYPjZ1nTCQs | 100ms | 83ms | 13ms | 3rd |
Showing top 10 of 13 scripts
FJS BundlesAction47 scripts, 2.1 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://f.vimeocdn.com/cms/_next/static/chunks/7185-fc224426b2d88e12.js | 1206 KB | 806 KB (67%) | ✓ | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/fb6eed97-7a2d57b90f7d6188.js | 945 KB | 712 KB (75%) | ✓ | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/4831-253ac4bff1936828.js | 157 KB | 116 KB (74%) | ✓ | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/4048-99e2b2dcf0c6028c.js | 240 KB | 110 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-126VYLCXDY&l=_gtm&cx=c>m=4e64h1h1 | 167 KB | 68 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-RBKK&l=_gtm | 197 KB | 65 KB (33%) | ✓ | 3rd |
| https://js.qualified.com/qualified.js?token=8Q5gZzYPjZ1nTCQs | 117 KB | 58 KB (49%) | ✓ | 3rd |
| https://js.qualified.com/packs/js/multimodal_v2-1aa133be.js | 97 KB | 50 KB (52%) | ✓ | 3rd |
| https://f.vimeocdn.com/cms/_next/static/chunks/47bf8baf-e20b49444a715f32.js | 75 KB | 46 KB (61%) | ✓ | 3rd |
| https://transcend-cdn.com/cm/31e97cbf-355c-4f0d-8bad-9cd945121508/ui.js | 86 KB | 43 KB (50%) | ✓ | 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 InventoryAction179 resources · 17.8 MB · 2.1 MB savings availableFIX
~2.1 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 179 resources | 17.8 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate, post-check=0, pre-check=0
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
| post-check | 0 | |
| pre-check | 0 |
BImage Optimization61 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (1666 KB)PASS
Web fonts
8
1666 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)
Fixing the unchecked items could save ~1056 KB and ~2112 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall179 requests over 8419msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
f.vimeocdn.com f.vimeocdn.com | Other | 1890ms | 45 KB | — | €21/mo | Costly |
vimeo.com vimeo.com | Other | 935ms | 264 KB | — | €10/mo | Costly |
f.vimeocdn.com f.vimeocdn.com | Other | 624ms | 1206 KB | 67% | €7/mo | Costly |
f.vimeocdn.com f.vimeocdn.com | Other | 515ms | 53 KB | — | €6/mo | Costly |
Unattributable Unattributable | Other | 500ms | 0 KB | — | €5/mo | Costly |
f.vimeocdn.com f.vimeocdn.com | Other | 359ms | 240 KB | 47% | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 176ms | 197 KB | 33% | €2/mo | Optional |
f.vimeocdn.com f.vimeocdn.com | Other | 115ms | 945 KB | 75% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 110ms | 167 KB | 41% | €1/mo | Optional |
js.qualified.com js.qualified.com | Other | 100ms | 117 KB | 49% | €1/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 66ms | 51 KB | 42% | €1/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 57ms | 86 KB | 50% | €1/mo | Optional |
js.qualified.com js.qualified.com | Other | 51ms | 97 KB | 52% | €1/mo | Optional |
These scripts may cost more than they're worth
- f.vimeocdn.com adds 1890ms and costs ~€21/month
- vimeo.com adds 935ms and costs ~€10/month
- f.vimeocdn.com adds 624ms and costs ~€7/month
- f.vimeocdn.com adds 515ms and costs ~€6/month
- Unattributable adds 500ms and costs ~€5/month
- f.vimeocdn.com adds 359ms and costs ~€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
f.vimeocdn.com takes 1890ms 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
vimeo.com takes 935ms 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
f.vimeocdn.com takes 624ms 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 f.vimeocdn.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
f.vimeocdn.com takes 515ms 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 500ms 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
f.vimeocdn.com takes 359ms 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
75% of f.vimeocdn.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
52% of js.qualified.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