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.
2.47 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
11.84 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.21 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.303
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.39 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.
22.70 s
Page Load Progression
550 ms
1.1 s
1.6 s
2.2 s
2.7 s
3.3 s 3.8 s
4.4 sFPage Weight BudgetAction3.5 MB transferred, 138 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 CostAction11308ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://fast.wistia.com/assets/external/E-v1.js | 2181ms | 1643ms | 104ms | 3rd |
| https://www.zend.com/ | 2091ms | 18ms | 2ms | 3rd |
| Unattributable | 1924ms | 145ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PG5L5N | 1355ms | 1193ms | 70ms | 3rd |
| https://scripts.clarity.ms/0.8.59/clarity.js | 568ms | 497ms | 11ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js | 483ms | 263ms | 130ms | 3rd |
| https://cdn.jsdelivr.net/npm/alpinejs@3.14.3/dist/cdn.min.js | 477ms | 421ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-06BLZRYZ39&cx=c>m=4e64h1h1 | 445ms | 368ms | 68ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-959965184&cx=c>m=4e64h1h1 | 253ms | 209ms | 41ms | 3rd |
| https://j.6sc.co/6si.min.js | 244ms | 203ms | 7ms | 3rd |
Showing top 10 of 21 scripts
FJS BundlesAction48 scripts, 641 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://fast.wistia.com/assets/external/engines/hls_video.js@379dc59f3883ecbd8a4ec99277538cfd8c619ee8 | 159 KB | 122 KB (77%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/E-v1.js | 162 KB | 71 KB (44%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js | 128 KB | 67 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-06BLZRYZ39&cx=c>m=4e64h1h1 | 172 KB | 63 KB (37%) | ✓ | 3rd |
| https://assets.trendemon.com/tag/trends.min.js | 89 KB | 58 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PG5L5N | 174 KB | 57 KB (33%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-959965184&cx=c>m=4e64h1h1 | 144 KB | 55 KB (38%) | ✓ | 3rd |
| https://resources.perforce.com/js/forms2/js/forms2.min.js | 67 KB | 51 KB (76%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/captions.js | 43 KB | 29 KB (66%) | ✓ | 3rd |
| https://www.zend.com/sites/default/files/js/js_WAZtGlt7eCNfPJaORXSYgeUJIHAaMCJtgbBJHWvTpH0.js?scope=footer&delta=0&language=en&theme=p4base&include=eJw9iUEOgzAMBD8UyKX_iRxiqIWJI9sI-vuCRLisZnagFBeovwgPjLNK9QAUgdLCkoFDRnfUhGcTw5Jm4kstLlhRr4ynM9U1Ft0b8PhoaJ8MhvGezhNoGWiSOlwkuyH3soGu6PKqZGIcNqx7v5qSbV0OMicI7SsudlC78osjVfJg5HhQwQSM6vH-_teJWms | 38 KB | 26 KB (68%) | ✓ | 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 InventoryAction138 resources · 3.5 MB · 641 KB savings availableFIX
~640.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 138 resources | 3.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction37 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
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 Loading3 fonts (34 KB)PASS
Web fonts
3
34 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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
Network Waterfall138 requests over 6463msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
fast.wistia.com fast.wistia.com | Other | 2181ms | 162 KB | 44% | €24/mo | Costly |
www.zend.com www.zend.com | Other | 2091ms | 24 KB | — | €23/mo | Costly |
Unattributable Unattributable | Other | 1924ms | 0 KB | — | €21/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 1355ms | 174 KB | 33% | €15/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 568ms | 26 KB | — | €6/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 483ms | 128 KB | 52% | €5/mo | Essential |
jsDelivr cdn.jsdelivr.net | CDN | 477ms | 17 KB | — | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 445ms | 172 KB | 37% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 253ms | 144 KB | 38% | €3/mo | Costly |
j.6sc.co j.6sc.co | Other | 244ms | 19 KB | — | €3/mo | Costly |
www.zend.com www.zend.com | Other | 190ms | 38 KB | 68% | €2/mo | Optional |
fast.wistia.com fast.wistia.com | Other | 178ms | 43 KB | 66% | €2/mo | Optional |
trackingapi.trendemon.com trackingapi.trendemon.com | Other | 151ms | 0 KB | — | €2/mo | Optional |
fast.wistia.com fast.wistia.com | Other | 143ms | 159 KB | 77% | €2/mo | Optional |
resources.perforce.com resources.perforce.com | Other | 140ms | 67 KB | 76% | €2/mo | Optional |
static.addtoany.com static.addtoany.com | Other | 115ms | 2 KB | — | €1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 86ms | 19 KB | — | €1/mo | Optional |
assets.trendemon.com assets.trendemon.com | Other | 84ms | 89 KB | 65% | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 82ms | 9 KB | — | €1/mo | Essential |
trackingapi.trendemon.com trackingapi.trendemon.com | Other | 69ms | 3 KB | — | €1/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 52ms | 19 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- fast.wistia.com adds 2181ms and costs ~€24/month
- www.zend.com adds 2091ms and costs ~€23/month
- Unattributable adds 1924ms and costs ~€21/month
- Google Tag Manager adds 1355ms and costs ~€15/month
- Microsoft Clarity adds 568ms and costs ~€6/month
- jsDelivr adds 477ms and costs ~€5/month
- Google Tag Manager adds 445ms and costs ~€5/month
- Google Tag Manager adds 253ms and costs ~€3/month
- j.6sc.co adds 244ms 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
fast.wistia.com takes 2181ms 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.zend.com takes 2091ms 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 1924ms 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 1355ms 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
Microsoft Clarity takes 568ms 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 OneTrust'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
jsDelivr takes 477ms 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 445ms 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 253ms 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
j.6sc.co takes 244ms 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
68% of www.zend.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 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
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
76% of resources.perforce.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
65% of assets.trendemon.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