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.
8.26 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
13.78 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.32 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.
8.26 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.
14.01 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction7279ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 2766ms | 1555ms | 0ms | 3rd |
| https://fast.wistia.com/assets/external/E-v1.js | 2164ms | 1225ms | 120ms | 3rd |
| https://www.adjust.com/ | 850ms | 92ms | 3ms | 3rd |
| https://consent.cookiebot.com/7de2a1e5-bcc5-47d3-ba4c-18089c88df44/cc.js?renew=false&referer=www.adjust.com&dnt=false&init=false&culture=undefined | 462ms | 192ms | 39ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N3PMXH4 | 334ms | 243ms | 67ms | 3rd |
| https://www.adjust.com/_nuxt/BxVfe96v.js | 315ms | 292ms | 6ms | 3rd |
| https://www.adjust.com/_nuxt/entry.B9eqlAoa.css | 182ms | 0ms | 0ms | 3rd |
| https://consent.cookiebot.com/uc.js?cbid=7de2a1e5-bcc5-47d3-ba4c-18089c88df44&implementation=gtm&consentmode-dataredaction=dynamic&culture=undefined | 136ms | 115ms | 14ms | 3rd |
| https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42 | 71ms | 57ms | 4ms | 3rd |
DJS BundlesAction73 scripts, 458 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42 | 159 KB | 122 KB (77%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/E-v1.js | 162 KB | 78 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N3PMXH4 | 170 KB | 74 KB (43%) | ✓ | 3rd |
| https://www.adjust.com/_nuxt/bH2VyYVt.js | 69 KB | 62 KB (90%) | ✓ | 3rd |
| https://www.adjust.com/_nuxt/BxVfe96v.js | 249 KB | 50 KB (20%) | ✓ | 3rd |
| https://consent.cookiebot.com/7de2a1e5-bcc5-47d3-ba4c-18089c88df44/cc.js?renew=false&referer=www.adjust.com&dnt=false&init=false&culture=undefined | 75 KB | 27 KB (37%) | ✓ | 3rd |
| https://consent.cookiebot.com/uc.js?cbid=7de2a1e5-bcc5-47d3-ba4c-18089c88df44&implementation=gtm&consentmode-dataredaction=dynamic&culture=undefined | 36 KB | 23 KB (65%) | ✓ | 3rd |
| https://browser.sentry-cdn.com/9.6.1/bundle.min.js | 25 KB | 21 KB (86%) | ✓ | 3rd |
| https://www.adjust.com/_nuxt/BnbcDBiK.js | 1 KB | — | ✓ | 3rd |
| https://www.adjust.com/_nuxt/CUa9-FIh.js | 1 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
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 InventoryAction123 resources · 1.7 MB · 458 KB savings availableFIX
~457.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 123 resources | 1.7 MiB | ||||||
CPage Weight BudgetAction1.7 MB transferred, 123 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
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
CImage OptimizationAction16 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (244 KB)PASS
Web fonts
4
244 KB total
Render-blocking
0
of 4
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 Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall123 requests over 2726msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 2766ms | 0 KB | — | €30/mo | Costly |
fast.wistia.com fast.wistia.com | Other | 2164ms | 162 KB | 48% | €23/mo | Costly |
www.adjust.com www.adjust.com | Other | 850ms | 29 KB | — | €9/mo | Costly |
consent.cookiebot.com consent.cookiebot.com | Other | 462ms | 75 KB | 37% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 334ms | 170 KB | 43% | €4/mo | Costly |
www.adjust.com www.adjust.com | Other | 315ms | 249 KB | 20% | €3/mo | Costly |
www.adjust.com www.adjust.com | Other | 182ms | 113 KB | — | €2/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 136ms | 36 KB | 65% | €1/mo | Optional |
fast.wistia.com fast.wistia.com | Other | 71ms | 159 KB | 77% | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 2766ms and costs ~€30/month
- fast.wistia.com adds 2164ms and costs ~€23/month
- www.adjust.com adds 850ms and costs ~€9/month
- consent.cookiebot.com adds 462ms and costs ~€5/month
- Google Tag Manager adds 334ms and costs ~€4/month
- www.adjust.com adds 315ms and costs ~€3/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
Unattributable takes 2766ms 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
fast.wistia.com takes 2164ms 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
www.adjust.com takes 850ms 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
consent.cookiebot.com takes 462ms 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
Google Tag Manager takes 334ms 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
www.adjust.com takes 315ms 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
65% of consent.cookiebot.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
77% of fast.wistia.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