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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
82
GRADE
B
FIX
4
REVIEW
0
PASS
10
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
44
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.25 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

8.55 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

866 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.004

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.68 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.

8.55 s

Page Load Progression

439 ms
879 ms
1.3 s
1.8 s
2.2 s
2.6 s
3.1 s
3.5 s
Checks
16
10 PASS 4 FIX
D
Third-Party Impact
Action
61% third-party, 0 ms blocking
FIX
61% third-party, 0 ms blocking
Warning::
Third-party code accounts for 61% of page weight (538.1 KiB of 878.3 KiB)
Info::
Third-party blocking time is low (0 ms)
39%
61%
First-party Third-party
F
JS Execution Cost
Action
6308ms total JS execution
FIX
6308ms total JS execution
Warning::
https://linkr.sh/en: 2080ms CPU time
Warning::
https://linkr.sh/assets/worker-entry-CqHTzEY3.js: 1881ms CPU time
Warning::
https://linkr.sh/assets/framework-DGYcMqM3.js: 1123ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-C4PF...: 366ms CPU time
Warning::
https://linkr.sh/cdn-cgi/challenge-platform/script...: 276ms CPU time
Info::
Third-party scripts: 948ms (15% of total)

Main Thread Breakdown

Script Evaluation 35% Style & Layout 31% Other 21% Rendering 9%
ScriptTotalScriptingParse/CompileParty
https://linkr.sh/en2080ms98ms15ms1st
https://linkr.sh/assets/worker-entry-CqHTzEY3.js1881ms589ms3ms1st
https://linkr.sh/assets/framework-DGYcMqM3.js1123ms691ms2ms1st
https://www.googletagmanager.com/gtag/js?id=G-C4PFB4WZH6366ms303ms59ms3rd
https://linkr.sh/cdn-cgi/challenge-platform/scripts/jsd/main.js276ms262ms3ms1st
https://www.googletagmanager.com/gtag/js?id=AW-18064357309272ms230ms39ms3rd
Unattributable244ms11ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-18064357309&cx=c&gtm=4e646166ms28ms38ms3rd
D
JS Bundles
Action
11 scripts, 339 KB unused
FIX
11 scripts, 339 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-180...: 102 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://linkr.sh/assets/worker-entry-CqHTzEY3.js: 91 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-C4PF...: 69 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-180...: 55 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://linkr.sh/assets/framework-DGYcMqM3.js: 22 KB unused (36%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 339 KB
339 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=AW-18064357309&cx=c&gtm=4e6461136 KB102 KB (75%)✓3rd
https://linkr.sh/assets/worker-entry-CqHTzEY3.js192 KB91 KB (48%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-C4PFB4WZH6172 KB69 KB (40%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-18064357309136 KB55 KB (41%)✓3rd
https://linkr.sh/assets/framework-DGYcMqM3.js60 KB22 KB (36%)✓1st
https://linkr.sh/assets/rolldown-runtime-COnpUsM8.js1 KB—✓1st
https://linkr.sh/assets/index-B4y3pecb.js12 KB—✓1st
https://linkr.sh/assets/preload-helper-3k_mjWfE.js2 KB—✓1st
https://linkr.sh/assets/query-BbOc3VB2.js1 KB—✓1st
https://linkr.sh/cdn-cgi/challenge-platform/h/b/scripts/jsd/625261456364/main.js?12 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

A
Page Weight Budget
878 KB transferred, 28 requests
PASS
878 KB transferred, 28 requests
Info::
Page weighs 2.6 MB (878 KB transferred)
Warning::
JavaScript is 726 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 726 KB
Info::
28 HTTP requests
Info::
Estimated 0.18 g CO2 per page load
878 KB / 2.4 MB budget
878 KB transferred
28 requests
0.18 g CO2 per page load
JavaScript 725.6 KiB 83%
Fonts 87.1 KiB 10%
CSS 35.1 KiB 4%
HTML 20.2 KiB 2%
Other 7.2 KiB 1%
Other 2.5 KiB 0%
Other 617 B 0%
Images 64 B 0%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 0 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
3 fonts (87 KB)
PASS
3 fonts (87 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

87 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.2 s LCP 8.5 shttps://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff24UasrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2 — 35.3 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/manrope/v20/xn7gYHE41ni1AdIRggexSvfedN4.woff2xn7gYHE41ni1AdIRggexSvf... https://fonts.gstatic.com/s/manrope/v20/xn7gYHE41ni1AdIRggexSvfedN4.woff2 — 24.0 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/geist/v4/gyByhwUxId8gMEwcGFWNOITd.woff2gyByhwUxId8gMEwcGFWNOIT... https://fonts.gstatic.com/s/geist/v4/gyByhwUxId8gMEwcGFWNOITd.woff2 — 27.8 KiB — 0 ms — font-display: swap
4UasrENHsxJlGDuGo1OIlJf... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
xn7gYHE41ni1AdIRggexSvf... woff2 swap
Size 24 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
gyByhwUxId8gMEwcGFWNOIT... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
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 Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
28 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
15% of JavaScript execution is third-party
First-party Third-party 948ms · 444KB · kr2275/mo
Google Tag Manager
Tag Manager
Costly
Execution 366ms
Transfer 172 KB
Unused 40%
Monthly Cost kr877/mo
Google Tag Manager
Tag Manager
Costly
Execution 272ms
Transfer 136 KB
Unused 41%
Monthly Cost kr653/mo
Unattributable
Other
Costly
Execution 244ms
Transfer 0 KB
Monthly Cost kr586/mo
Google Tag Manager
Tag Manager
Costly
Execution 66ms
Transfer 136 KB
Unused 75%
Monthly Cost kr159/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 366ms and costs ~kr877/month
  • Google Tag Manager adds 272ms and costs ~kr653/month
  • Unattributable adds 244ms and costs ~kr586/month
  • Google Tag Manager adds 66ms and costs ~kr159/month

Google Tag Manager takes 366ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 272ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 244ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 66ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

75% of Google Tag Manager's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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