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https://www.kraken.com

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
3
REVIEW
1
PASS
10
INFO
2

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

Mobile Desktop
27
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
75
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

8.12 s

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

13.34 s

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

6.90 s

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

0.002

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

8.12 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.

19.12 s

Page Load Progression

775 ms
1.5 s
2.3 s
3.1 s
3.9 s
4.6 s
5.4 s
6.2 s
Checks
16
10 PASS 1 REVIEW 3 FIX
F
Page Weight Budget
Action
3.8 MB transferred, 119 requests
FIX
3.8 MB transferred, 119 requests
Warning::
Page weighs 9.1 MB (3.8 MB transferred)
Warning::
JavaScript is 993 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 993 KB
Info::
Fonts are 265 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 265 KB
Warning::
119 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.81 g CO2 per page load
3.8 MB / 2.4 MB budget
3.8 MB transferred
119 requests
0.81 g CO2 per page load
Other 1.9 MiB 48%
JavaScript 992.8 KiB 25%
Images 440.2 KiB 11%
Fonts 265.2 KiB 7%
HTML 217.0 KiB 6%
CSS 111.4 KiB 3%
Other 6.6 KiB 0%
Other 2.5 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

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.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

F
JS Execution Cost
Action
16692ms total JS execution
FIX
16692ms total JS execution
Warning::
https://www.kraken.com/_static/js/e0b2bdd3.js: 11652ms CPU time
Warning::
https://www.kraken.com/: 3253ms CPU time
Warning::
https://www.kraken.com/_static/js/a1801c53.js: 942ms CPU time
Warning::
Unattributable: 658ms CPU time
Info::
https://www.kraken.com/js/_seg.ced38012.js: 65ms CPU time
Info::
Third-party scripts: 658ms (4% of total)

Main Thread Breakdown

Script Evaluation 62% Other 11% Style & Layout 11% Parse HTML & CSS 7% Rendering 3% Script Parsing & Compilation 3%
ScriptTotalScriptingParse/CompileParty
https://www.kraken.com/_static/js/e0b2bdd3.js11652ms9611ms15ms1st
https://www.kraken.com/3253ms60ms225ms1st
https://www.kraken.com/_static/js/a1801c53.js942ms620ms123ms1st
Unattributable658ms100ms0ms3rd
https://www.kraken.com/js/_seg.ced38012.js65ms43ms21ms1st
https://www.kraken.com/_static/js/e5fbbb7f.js62ms5ms56ms1st
https://www.kraken.com/_static/css/641dfaa5.css59ms0ms0ms1st
D
JS Bundles
Action
62 scripts, 390 KB unused
FIX
62 scripts, 390 KB unused
Warning::
https://www.kraken.com/_static/js/a1801c53.js: 180 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.kraken.com/_static/js/async/de47aef5.j...: 81 KB unused (86%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.kraken.com/_static/js/e5fbbb7f.js: 80 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.kraken.com/_static/js/async/ad9a5896.j...: 24 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.kraken.com/_static/js/e0b2bdd3.js: 24 KB unused (36%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 390 KB
390 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.kraken.com/_static/js/a1801c53.js405 KB180 KB (45%)✓1st
https://www.kraken.com/_static/js/async/de47aef5.js95 KB81 KB (86%)✓1st
https://www.kraken.com/_static/js/e5fbbb7f.js170 KB80 KB (47%)✓1st
https://www.kraken.com/_static/js/async/ad9a5896.js33 KB24 KB (72%)✓1st
https://www.kraken.com/_static/js/e0b2bdd3.js67 KB24 KB (36%)✓1st
https://www.kraken.com/js/_seg.ced38012.js0 KB—✓1st
https://www.kraken.com/_static/js/async/6aba3c8c.js7 KB—✓1st
https://www.kraken.com/_static/js/async/6999667a.js8 KB—✓1st
https://www.kraken.com/_static/js/async/28a495b3.js7 KB—✓1st
https://www.kraken.com/_static/js/async/023fa222.js6 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

B
Third-Party Impact
60% third-party, 0 ms blocking
REVIEW
60% third-party, 0 ms blocking
Warning::
Third-party code accounts for 60% of page weight (2.3 MiB of 3.8 MiB)
Info::
Third-party blocking time is low (0 ms)
40%
60%
First-party Third-party
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
39 images, 0 KB saveable
PASS
39 images, 0 KB saveable
Warning::
https://assets-cms.kraken.com/images/51n36hrp/faca... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets-cms.kraken.com/images/51n36hrp/faca... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets-cms.kraken.com/images/51n36hrp/faca... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets-cms.kraken.com/images/51n36hrp/faca... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
39 images 440 KB
0 oversized -0 KB
0 legacy format
4 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

A+
Font Loading
6 fonts (265 KB)
PASS
6 fonts (265 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

265 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 8.1 s LCP 13.3 shttps://www.kraken.com/_assets/fonts/Kraken-Brand-Bold.otfKraken-Brand-Bold.otf https://www.kraken.com/_assets/fonts/Kraken-Brand-Bold.otf — 52.6 KiB — 0 ms — font-display: swaphttps://www.kraken.com/_assets/fonts/Kraken-Product-Regular.woff2Kraken-Product-Regular.... https://www.kraken.com/_assets/fonts/Kraken-Product-Regular.woff2 — 36.3 KiB — 0 ms — font-display: swaphttps://www.kraken.com/_assets/fonts/Kraken-Product-Medium.woff2Kraken-Product-Medium.w... https://www.kraken.com/_assets/fonts/Kraken-Product-Medium.woff2 — 36.5 KiB — 0 ms — font-display: swaphttps://www.kraken.com/_assets/fonts/Kraken-Brand-Regular.otfKraken-Brand-Regular.otf https://www.kraken.com/_assets/fonts/Kraken-Brand-Regular.otf — 51.6 KiB — 0 ms — font-display: swaphttps://www.kraken.com/_assets/fonts/Kraken-Product-Bold.woff2Kraken-Product-Bold.woff2 https://www.kraken.com/_assets/fonts/Kraken-Product-Bold.woff2 — 36.4 KiB — 0 ms — font-display: swaphttps://www.kraken.com/_assets/fonts/Kraken-Brand-Medium.otfKraken-Brand-Medium.otf https://www.kraken.com/_assets/fonts/Kraken-Brand-Medium.otf — 51.9 KiB — 0 ms — font-display: swap
Kraken-Brand-Bold.otf otf swap
Size 53 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Kraken-Product-Regular.... woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Kraken-Product-Medium.w... woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Kraken-Brand-Regular.otf otf swap
Size 52 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Kraken-Product-Bold.woff2 woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Kraken-Brand-Medium.otf otf swap
Size 52 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • 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)

Fixing the unchecked items could save ~47 KB and ~94 ms

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
57 hints, 0 missing preconnects
PASS
57 hints, 0 missing preconnects
Info::
Page uses 57 resource hint(s)

Current Resource Hints

preconnect
1
preload
+46
56
dns-prefetch
—
prefetch
—

57 resource hints configured

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

A+
HTTP Caching
max-age=300 (5 minutes)
PASS
max-age=300 (5 minutes)
Info::
Cache-Control header is set
Got: max-age=300, public, stale-if-error=604800, stale-while-revalidate=86400
Info::
Effective TTL: 5 minutes (max-age=300)
Info::
Last-Modified header present
Cache-Control

max-age=300, public, stale-if-error=604800, stale-while-revalidate=86400

DirectiveValueMeaning
max-age300Cache for 5 minutes
public—Any cache may store this response
stale-if-error604800
stale-while-revalidate86400Serve stale for 1 day while fetching fresh
Effective TTL: 300 seconds
Network Waterfall
119 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
4% of JavaScript execution is third-party
First-party Third-party 658ms · 0KB · €11/mo
Unattributable
Other
Costly
Execution 658ms
Transfer 0 KB
Monthly Cost €11/mo

These scripts may cost more than they're worth

  • Unattributable adds 658ms and costs ~€11/month

Unattributable takes 658ms 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

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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