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.
5.72 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
24.40 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.28 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.273
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.69 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.
25.19 s
Page Load Progression
FPage Weight BudgetAction6.6 MB transferred, 140 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
FJS Execution CostAction5111ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 811ms | 131ms | 0ms | 3rd |
| https://js.hs-analytics.net/analytics/1776803700000/21595784.js | 578ms | 437ms | 12ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 405ms | 260ms | 143ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TNHVQV | 404ms | 339ms | 57ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-659129120&cx=c>m=4e64h1 | 349ms | 304ms | 42ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-35G5ZFTNLW | 260ms | 155ms | 44ms | 3rd |
| https://connect.facebook.net/signals/config/675644517461640?v=2.9.303&r=stable&domain=tinypic.com&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168 | 257ms | 214ms | 42ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Y2Z30LCFMB | 238ms | 192ms | 42ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 194ms | 174ms | 14ms | 3rd |
| https://www.redditstatic.com/ads/pixel.js | 151ms | 133ms | 4ms | 3rd |
Showing top 10 of 26 scripts
FJS BundlesAction56 scripts, 892 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://platform.linkedin.com/in.js | 0 KB | 131 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Y2Z30LCFMB&cx=c>m=4e64h1 | 174 KB | 113 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-659129120 | 146 KB | 106 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Y2Z30LCFMB | 176 KB | 66 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-659129120&cx=c>m=4e64h1 | 146 KB | 65 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-245455-50&cx=c>m=4e64h1 | 116 KB | 63 KB (55%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 122 KB | 63 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-35G5ZFTNLW | 158 KB | 63 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TNHVQV | 170 KB | 61 KB (36%) | ✓ | 3rd |
| https://connect.facebook.net/en_GB/bundle/sdk.js/ | 78 KB | 52 KB (67%) | ✓ | 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 InventoryAction140 resources · 6.6 MB · 892 KB savings availableFIX
~891.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 140 resources | 6.6 MiB | ||||||
CImage OptimizationAction33 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
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
AThird-Party Impact31% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (36 KB)PASS
Web fonts
2
36 KB total
Render-blocking
0
of 2
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
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=120 (2 minutes)PASS
no-transform, max-age=120
| Directive | Value | Meaning |
|---|---|---|
| no-transform | — | |
| max-age | 120 | Cache for 2 minutes |
Network Waterfall140 requests over 3426msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 811ms | 0 KB | — | €4/mo | Costly |
HubSpot Analytics js.hs-analytics.net | Analytics | 578ms | 45 KB | — | €3/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 405ms | 122 KB | 52% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 404ms | 170 KB | 36% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 349ms | 146 KB | 44% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 260ms | 158 KB | 40% | €1/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 257ms | 127 KB | 28% | €1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 238ms | 176 KB | 38% | €1/mo | Costly |
script.crazyegg.com script.crazyegg.com | Other | 194ms | 55 KB | 77% | €1/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 151ms | 19 KB | — | €1/mo | Optional |
sc-static.net sc-static.net | Other | 123ms | 25 KB | — | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 119ms | 16 KB | — | €1/mo | Optional |
Twitter/X Embed platform.twitter.com | Social | 116ms | 27 KB | — | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 115ms | 97 KB | 32% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 110ms | 116 KB | 55% | €1/mo | Optional |
platform.linkedin.com platform.linkedin.com | Other | 107ms | 0 KB | 60% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 91ms | 78 KB | 67% | €0/mo | Optional |
www.mczbf.com www.mczbf.com | Other | 89ms | 13 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 88ms | 174 KB | 65% | €0/mo | Optional |
js.hs-banner.com js.hs-banner.com | Other | 80ms | 24 KB | — | €0/mo | Optional |
js.hubspot.com js.hubspot.com | Other | 79ms | 28 KB | — | €0/mo | Optional |
s.pinimg.com s.pinimg.com | Other | 75ms | 27 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 63ms | 146 KB | 73% | €0/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 56ms | 19 KB | — | €0/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 51ms | 40 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 811ms and costs ~€4/month
- HubSpot Analytics adds 578ms and costs ~€3/month
- analytics.tiktok.com adds 405ms and costs ~€2/month
- Google Tag Manager adds 404ms and costs ~€2/month
- Google Tag Manager adds 349ms and costs ~€2/month
- Google Tag Manager adds 260ms and costs ~€1/month
- Facebook Pixel adds 257ms and costs ~€1/month
- Google Tag Manager adds 238ms and costs ~€1/month
98% 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 811ms 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
HubSpot Analytics takes 578ms 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
analytics.tiktok.com takes 405ms 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
52% of analytics.tiktok.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
Google Tag Manager takes 404ms 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 349ms 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 260ms 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
Facebook Pixel takes 257ms 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 238ms 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
77% of script.crazyegg.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
55% of Google Tag Manager'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 platform.linkedin.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
67% 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
65% of Google Tag Manager'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
73% of Google Tag Manager'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