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https://dejure.org

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
2
PASS
10
INFO
2

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

Mobile Desktop
68
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
79
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

2.65 s

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

2.98 s

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

0 ms

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.

2.90 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.

2.98 s

Page Load Progression

407 ms
814 ms
1.2 s
1.6 s
2.0 s
2.4 s
2.9 s
3.3 s
Checks
15
10 PASS 2 REVIEW 1 FIX
D
Third-Party Impact
Action
68% third-party, 0 ms blocking
FIX
68% third-party, 0 ms blocking
Warning::
Third-party code accounts for 68% of page weight (505.7 KiB of 744.3 KiB)
Info::
Third-party blocking time is low (0 ms)
32%
68%
First-party Third-party
C
Image Optimization
Action
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Warning::
https://j.dejure.org/jcg/doctrine/doctrine_banner.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://j.dejure.org/jcg/logo_70x70.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
10 images 244 KB
0 oversized -0 KB
8 legacy format
2 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

C
JS Bundles
Action
9 scripts, 117 KB unused
REVIEW
9 scripts, 117 KB unused
Warning::
https://j.dejure.org/jcg/formular2b-99.js: 60 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://j.dejure.org/jcg/formular2b-99.js: unminified — 16 KB could be saved
Warning::
https://j.dejure.org/jcg/jquery-ui-1.14.1/jquery-u...: 57 KB unused (87%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://j.dejure.org/jcg/einzelseite-75.js: unminified — 2 KB could be saved
Info::
Total unused JavaScript: 117 KB
117 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://j.dejure.org/jcg/formular2b-99.js81 KB60 KB (75%)✗3rd
https://j.dejure.org/jcg/jquery-ui-1.14.1/jquery-ui.min.js66 KB57 KB (87%)✓3rd
https://j.dejure.org/jcg/ba_djo.js20 KB—✓3rd
https://j.dejure.org/jcg/jquery-3.7.1.min.js30 KB—✓3rd
https://j.dejure.org/jcg/einzelseite-75.js14 KB—✗3rd
https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js42 KB—✓3rd
https://cdn.privacy-mgmt.com/unified/4.40.1/gdpr-tcf.27718c8cb9d29947d2c1.bundle.js29 KB—✓3rd
https://cdn.privacy-mgmt.com/polyfills.01516.js2 KB—✓3rd
https://cdn.privacy-mgmt.com/Notice.8f529.js91 KB—✓3rd

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

A
Page Weight Budget
744 KB transferred, 33 requests
PASS
744 KB transferred, 33 requests
Info::
Page weighs 2.2 MB (744 KB transferred)
Info::
33 HTTP requests
Info::
Estimated 0.15 g CO2 per page load
744 KB / 2.4 MB budget
744 KB transferred
33 requests
0.15 g CO2 per page load
JavaScript 376.1 KiB 51%
Images 243.8 KiB 33%
CSS 75.9 KiB 10%
HTML 26.0 KiB 3%
Other 13.0 KiB 2%
Other 7.7 KiB 1%
Other 1.1 KiB 0%
Other 559 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
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+
JS Execution Cost
260ms total JS execution
PASS
260ms total JS execution
Info::
https://dejure.org/: 118ms CPU time
Info::
Unattributable: 73ms CPU time
Info::
https://j.dejure.org/jcg/formular2b-99.js: 69ms CPU time
Warning::
Third-party scripts: 142ms (55% of total)

Main Thread Breakdown

Script Evaluation 34% Other 22% Style & Layout 21% Script Parsing & Compilation 13% Rendering 5% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://dejure.org/118ms3ms1ms1st
Unattributable73ms2ms0ms3rd
https://j.dejure.org/jcg/formular2b-99.js69ms44ms16ms3rd
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
Page Weight Inventory
33 resources · 744 KB · 117 KB savings available
PASS
33 resources · 744 KB · 117 KB savings available
Info::
Within 1MB page-weight target
Got: 744 KB
Info::
~117 KB of savings available
Warning::
29 third-party resources (68% of weight)
Info::
1 resources over 200KB
33 resources · 744.3 KiB · 29 third-party Within 1MB page-weight target
JavaScript 51% · 376.1 KiB
Image 35% · 256.9 KiB
CSS 10% · 75.9 KiB
Document 3% · 26.0 KiB
Other 1% · 9.4 KiB

~117.4 KiB of savings available

Remove unused JavaScript: 117.4 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Hetzner Online GmbH

A
HTTP Caching
max-age=5 (5 seconds)
PASS
max-age=5 (5 seconds)
Info::
Cache-Control header is set
Got: max-age=5
Info::
Effective TTL: 5 seconds (max-age=5)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=5

DirectiveValueMeaning
max-age5Cache for 5 seconds
Effective TTL: 5 seconds
Network Waterfall
33 requests over 3227ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.6 s LCP 3.0 shttps://dejure.org// https://dejure.org/ — 200 — 23.8 KiB — 842 ms — h2https://j.dejure.org/jcg/style-51.cssj.dejure.org/jcg/style-51.css https://j.dejure.org/jcg/style-51.css — 200 — 39.2 KiB — 1.0 s — h2https://j.dejure.org/jcg/ba_djo.jsj.dejure.org/jcg/ba_djo.js https://j.dejure.org/jcg/ba_djo.js — 200 — 20.2 KiB — 1.0 s — h2https://j.dejure.org/jcg/doctrine/doctrine_banner.svgj.dejure.org/jcg/doctrine/doctrine_... https://j.dejure.org/jcg/doctrine/doctrine_banner.svg — 200 — 15.9 KiB — 1.0 s — h2https://j.dejure.org/jcg/logo_70x70.pngj.dejure.org/jcg/logo_70x70.png https://j.dejure.org/jcg/logo_70x70.png — 200 — 7.7 KiB — 1.0 s — h2https://dejure.org/jcg/pur_mockups.webp/jcg/pur_mockups.webp https://dejure.org/jcg/pur_mockups.webp — 200 — 201.2 KiB — 840 ms — h2https://j.dejure.org/jcg/jquery-3.7.1.min.jsj.dejure.org/jcg/jquery-3.7.1.min.j... https://j.dejure.org/jcg/jquery-3.7.1.min.js — 200 — 30.0 KiB — 202 ms — h2https://j.dejure.org/jcg/einzelseite-75.jsj.dejure.org/jcg/einzelseite-75.js https://j.dejure.org/jcg/einzelseite-75.js — 200 — 14.2 KiB — 203 ms — h2https://j.dejure.org/jcg/jquery-ui-1.14.1/jquery-ui.min.jsj.dejure.org/jcg/jquery-ui-1.14.1/j... https://j.dejure.org/jcg/jquery-ui-1.14.1/jquery-ui.min.js — 200 — 66.0 KiB — 383 ms — h2https://j.dejure.org/jcg/formular2b-99.jsj.dejure.org/jcg/formular2b-99.js https://j.dejure.org/jcg/formular2b-99.js — 200 — 80.8 KiB — 421 ms — h2https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.jscdn.privacy-mgmt.com/unified/wrappe... https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js — 200 — 42.0 KiB — 16 ms — h2https://j.dejure.org/jcg/style_mobile-21.cssj.dejure.org/jcg/style_mobile-21.cs... https://j.dejure.org/jcg/style_mobile-21.css — 200 — 28.5 KiB — 420 ms — h2https://j.dejure.org/jcg/print-05.cssj.dejure.org/jcg/print-05.css https://j.dejure.org/jcg/print-05.css — 200 — 1.5 KiB — 399 ms — 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h2https://cdn.privacy-mgmt.com/wrapper/v2/messages?hasCsp=true&env=prod&body=%7B%22accountId%22%3A661%2C%22campaignEnv%22%3A%22prod%22%2C%22campaigns%22%3A%7B%22gdpr%22%3A%7B%22consentStatus%22%3A%7B%7D%2C%22targetingParams%22%3A%7B%7D%7D%7D%2C%22clientMMSOrigin%22%3A%22https%3A%2F%2Fcdn.privacy-mgmt.com%22%2C%22hasCSP%22%3Atrue%2C%22includeData%22%3A%7B%22localState%22%3A%7B%22type%22%3A%22string%22%7D%2C%22actions%22%3A%7B%22type%22%3A%22RecordString%22%7D%2C%22cookies%22%3A%7B%22type%22%3A%22RecordString%22%7D%7D%2C%22propertyHref%22%3A%22https%3A%2F%2Fdejure.org%2F%22%2C%22propertyId%22%3A2043%7D&localState=null&metadata=%7B%22gdpr%22%3A%7B%22applies%22%3Afalse%7D%7D&nonKeyedLocalState=null&ch=5122820345122820341cbb&scriptVersion=4.40.1&scriptType=unifiedcdn.privacy-mgmt.com/wrapper/v2/mes... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
55% of JavaScript execution is third-party
First-party Third-party 142ms · 81KB · €2/mo
Unattributable
Other
Optional
Execution 73ms
Transfer 0 KB
Monthly Cost €1/mo
j.dejure.org
Other
Optional
Execution 69ms
Transfer 81 KB
Unused 75%
Monthly Cost €1/mo

55% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

75% of j.dejure.org'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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