Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

Accessibility

100

Best Practices

100

SEO

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

1.17 s

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

2.15 s

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

4 ms

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

0.005

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

2.05 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.

2.25 s

Page Load Progression

375 ms

750 ms

1.1 s

1.5 s

1.9 s

2.2 s

2.6 s

3.0 s

Checks

5 PASS 5 REVIEW 3 FIX

Third-Party Impact

Action

100% third-party, 0 ms blocking

FIX

100% third-party, 0 ms blocking

Third-party code accounts for 100% of page weight (1.7 MiB of 1.7 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

Page Weight Inventory

Action

108 resources · 1.7 MB · 164 KB savings available

FIX

108 resources · 1.7 MB · 164 KB savings available

Page weight 758 KB over 1MB target

Got: 1.7 MB Expected: ≤ 1 MB

~164 KB of savings available

107 third-party resources (100% of weight)

2 resources over 200KB

108 resources · 1.7 MiB · 107 third-party 757.7 KiB over 1MB target

Image 48% · 863.8 KiB

JavaScript 30% · 535.0 KiB

Font 14% · 249.1 KiB

Document 4% · 76.3 KiB

CSS 2% · 41.7 KiB

Other 1% · 15.9 KiB

~163.9 KiB of savings available

Remove unused JavaScript: 163.9 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

108 resources			1.7 MiB

HTTP Caching

Action

No cache headers

FIX

No cache headers

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.

Page Weight Budget

Action

1.7 MB transferred, 108 requests

REVIEW

1.7 MB transferred, 108 requests

Page weighs 3.5 MB (1.7 MB transferred)

JavaScript is 535 KB — consider code splitting or lazy loading

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

Got: 535 KB

Fonts are 249 KB — consider subsetting or using system fonts

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

Got: 249 KB

108 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 0.36 g CO2 per page load

1.7 MB transferred

108 requests

0.36 g CO2 per page load

Images 861.9 KiB 48%

JavaScript 535.0 KiB 30%

Fonts 249.1 KiB 14%

HTML 75.9 KiB 4%

CSS 41.7 KiB 2%

Other 15.9 KiB 1%

Other 2.0 KiB 0%

Other 265 B 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Approaching limit

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

Image Optimization

23 images, 0 KB saveable

REVIEW

23 images, 0 KB saveable

https://storage.activemind.de/wp-am-de-cdn/wp-cont... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

23 images 862 KB

0 oversized -0 KB

16 legacy format

1 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

JS Execution Cost

650ms total JS execution

REVIEW

650ms total JS execution

https://www.activemind.de/: 212ms CPU time

https://storage.activemind.de/wp-am-de-cdn/wp-incl...: 135ms CPU time

Unattributable: 130ms CPU time

https://app.usercentrics.eu/browser-ui/latest/bund...: 121ms CPU time

https://www.activemind.de/wp-content/plugins/frien...: 53ms CPU time

Third-party scripts: 650ms (100% of total)

Main Thread Breakdown

Script Evaluation 51% Other 20% Style & Layout 18% Script Parsing & Compilation 5% Parse HTML & CSS 3%

Script	Total	Scripting	Parse/Compile	Party
https://www.activemind.de/	212ms	28ms	2ms	3rd
https://storage.activemind.de/wp-am-de-cdn/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	135ms	113ms	2ms	3rd
Unattributable	130ms	10ms	0ms	3rd
https://app.usercentrics.eu/browser-ui/latest/bundle_legacy.js	121ms	88ms	20ms	3rd
https://www.activemind.de/wp-content/plugins/friendly-captcha/public/vendor/v2/site.min.js?ver=0.1.25	53ms	46ms	0ms	3rd

JS Bundles

Action

36 scripts, 164 KB unused

REVIEW

36 scripts, 164 KB unused

https://app.usercentrics.eu/browser-ui/latest/bund...: 143 KB unused (56%)

Consider code splitting or tree shaking to reduce unused code.

https://www.activemind.de/wp-content/plugins/eleme...: 21 KB unused (53%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 164 KB

164 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://app.usercentrics.eu/browser-ui/latest/bundle_legacy.js	255 KB	143 KB (56%)	✓	3rd
https://www.activemind.de/wp-content/plugins/elementor/assets/lib/swiper/v8/swiper.min.js?ver=8.4.5	39 KB	21 KB (53%)	✓	3rd
https://www.activemind.de/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=3.33.6	10 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/elementor-pro/assets/lib/sticky/jquery.sticky.min.js?ver=3.33.1	2 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/am-generator/content/HtmlToPdfController.js?ver=1.0	2 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/friendly-captcha/public/vendor/v2/site.min.js?ver=0.1.25	12 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/friendly-captcha/modules/elementor/script.js?ver=1.16.0	1 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/download-monitor/assets/js/dlm-xhr.min.js?ver=5.1.12	4 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/elementor-pro/assets/lib/smartmenus/jquery.smartmenus.min.js?ver=1.2.1	7 KB	—	✓	3rd
https://www.activemind.de/wp-content/plugins/elementor/assets/js/webpack.runtime.min.js?ver=3.33.6	3 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

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

4 fonts (249 KB)

PASS

4 fonts (249 KB)

4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

249 KB total

Render-blocking

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

open-sans-regular.woff2 woff2 swap

Size 61 KB

Load time 39 ms

Start 1.1 s

Risk FOUT — text flashes from fallback to web font

open-sans-800.woff2 woff2 swap

Size 63 KB

Load time 45 ms

Start 1.1 s

Risk FOUT — text flashes from fallback to web font

open-sans-700.woff2 woff2 swap

Size 63 KB

Load time 62 ms

Start 1.1 s

Risk FOUT — text flashes from fallback to web font

open-sans-600.woff2 woff2 swap

Size 63 KB

Load time 60 ms

Start 1.1 s

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

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

Network Waterfall

108 requests over 2104ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

100% of JavaScript execution is third-party

First-party Third-party 650ms · 335KB · €7/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
www.activemind.de www.activemind.de	Other	212ms	38 KB	—	€2/mo	Costly
storage.activemind.de storage.activemind.de	Other	135ms	29 KB	—	€1/mo	Optional
Unattributable Unattributable	Other	130ms	0 KB	—	€1/mo	Optional
app.usercentrics.eu app.usercentrics.eu	Other	121ms	255 KB	56%	€1/mo	Optional
www.activemind.de www.activemind.de	Other	53ms	12 KB	—	€1/mo	Optional

www.activemind.de

Other

Costly

Execution 212ms

Transfer 38 KB

Monthly Cost €2/mo

storage.activemind.de

Other

Optional

Execution 135ms

Transfer 29 KB

Monthly Cost €1/mo

Unattributable

Other

Optional

Execution 130ms

Transfer 0 KB

Monthly Cost €1/mo

app.usercentrics.eu

Other

Optional

Execution 121ms

Transfer 255 KB

Unused 56%

Monthly Cost €1/mo

www.activemind.de

Other

Optional

Execution 53ms

Transfer 12 KB

Monthly Cost €1/mo

These scripts may cost more than they're worth

www.activemind.de adds 212ms and costs ~€2/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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

www.activemind.de takes 212ms 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

56% of app.usercentrics.eu'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.