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https://rp-online.de

Performance

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

SCORE

79

GRADE

C

FIX

3

REVIEW

2

PASS

8

INFO

2

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

75

Performance

86

Accessibility

100

Best Practices

63

SEO

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

1.92 s

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

2.59 s

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

21 ms

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

0.076

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

1.92 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.

2.72 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

15

8 PASS 2 REVIEW 3 FIX

D

Page Weight Budget

Action

2.1 MB transferred, 55 requests

FIX

2.1 MB transferred, 55 requests

Page weighs 5.5 MB (2.1 MB transferred)

JavaScript is 1.0 MB — consider code splitting or lazy loading

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

Got: 1.0 MB

Fonts are 704 KB — consider subsetting or using system fonts

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

Got: 704 KB

55 HTTP requests

Estimated 0.44 g CO2 per page load

2.1 MB transferred

55 requests

0.44 g CO2 per page load

JavaScript 1.0 MiB 49%

Fonts 704.0 KiB 33%

Images 228.5 KiB 11%

HTML 106.7 KiB 5%

CSS 65.7 KiB 3%

Other 1.9 KiB 0%

Other 705 B 0%

Other 547 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

D

JS Bundles

Action

22 scripts, 371 KB unused

FIX

22 scripts, 371 KB unused

https://accounts.google.com/gsi/client: 81 KB unused (85%)

Consider code splitting or tree shaking to reduce unused code.

https://rp-online.de/assets/head.js?v=1774856308: 69 KB unused (70%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtm.js?id=GTM-KJQ...: 65 KB unused (52%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-Z4XD...: 63 KB unused (42%)

Consider code splitting or tree shaking to reduce unused code.

https://news.google.com/swg/js/v1/swg.js: 47 KB unused (69%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 371 KB

371 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://accounts.google.com/gsi/client	96 KB	81 KB (85%)	✓	3rd
https://rp-online.de/assets/head.js?v=1774856308	98 KB	69 KB (70%)	✓	1st
https://www.googletagmanager.com/gtm.js?id=GTM-KJQSZW7Q	126 KB	65 KB (52%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-Z4XDX2NETC&cx=c&gtm=4e64k0	150 KB	63 KB (42%)	✓	3rd
https://news.google.com/swg/js/v1/swg.js	71 KB	47 KB (69%)	✓	3rd
https://rp-online.de/assets/consent/consent-page.js?v=1774856308	46 KB	24 KB (52%)	✓	1st
https://rp-online.de/assets/piano.js?v=1774856308	39 KB	22 KB (56%)	✓	1st
https://d.smartico.one/get/wg/SaXiJbSUv9Dltge4cF6LzHZKBHr4ovkHIYlLo5uD?scriptid=trm-ad-banderol-SaXiJbSUv9Dltge4cF6LzHZKBHr4ovkHIYlLo5uD	0 KB	—	✓	3rd
https://news.google.com/swg/js/v1/swg-gaa.js	27 KB	—	✓	3rd
https://rp-online.de/assets/cmp.js?v=1774856308	21 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

D

HTTP Caching

Action

no-store (uncacheable)

FIX

no-store (uncacheable)

Cache-Control: no-store prevents all caching

Intentional for dynamic content, but increases server load for every page view.

Got: no-store

Last-Modified header present

Cache-Control

no-store

Directive	Value	Meaning
no-store	—	Never cache this response

B

Image Optimization

14 images, 0 KB saveable

REVIEW

14 images, 0 KB saveable

All images are well-optimized

14 images 228 KB

0 oversized -0 KB

12 legacy format

0 missing dimensions CLS risk

C

Page Weight Inventory

Action

55 resources · 2.1 MB · 371 KB savings available

REVIEW

55 resources · 2.1 MB · 371 KB savings available

Page weight 1.1 MB over 1MB target

Got: 2.1 MB Expected: ≤ 1 MB

~371 KB of savings available

21 third-party resources (24% of weight)

2 resources over 200KB

55 resources · 2.1 MiB · 21 third-party 1.1 MiB over 1MB target

JavaScript 49% · 1.0 MiB

Font 33% · 704.0 KiB

Image 11% · 230.3 KiB

Document 5% · 106.7 KiB

CSS 3% · 65.7 KiB

Other 0% · 1.2 KiB

~371.0 KiB of savings available

Remove unused JavaScript: 371.0 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

55 resources			2.1 MiB

A

Third-Party Impact

24% third-party, 0 ms blocking

PASS

24% third-party, 0 ms blocking

Third-party code accounts for 24% of page weight (520.6 KiB of 2.1 MiB)

Third-party blocking time is low (0 ms)

76%

24%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

368ms total JS execution

PASS

368ms total JS execution

Unattributable: 113ms CPU time

https://rp-online.de/info/consent/: 102ms CPU time

https://www.googletagmanager.com/gtag/js?id=G-Z4XD...: 94ms CPU time

https://www.googletagmanager.com/gtm.js?id=GTM-KJQ...: 60ms CPU time

Third-party scripts: 267ms (72% of total)

Main Thread Breakdown

Script Evaluation 41% Other 22% Script Parsing & Compilation 16% Style & Layout 15% Parse HTML & CSS 4%

Script	Total	Scripting	Parse/Compile	Party
Unattributable	113ms	3ms	0ms	3rd
https://rp-online.de/info/consent/	102ms	2ms	0ms	1st
https://www.googletagmanager.com/gtag/js?id=G-Z4XDX2NETC&cx=c&gtm=4e64k0	94ms	75ms	18ms	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KJQSZW7Q	60ms	41ms	15ms	3rd

A+

Font Loading

3 fonts (704 KB)

PASS

3 fonts (704 KB)

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

Web fonts

3

704 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

inter-variable-webfont.... woff2 swap

Size 338 KB

Load time 56 ms

Start 472 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

publicoheadline-medium-... woff2 swap

Size 28 KB

Load time 25 ms

Start 648 ms

Risk FOUT — text flashes from fallback to web font

inter-variable-webfont.... woff2 swap

Size 338 KB

Load time 57 ms

Start 649 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

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 ~338 KB and ~676 ms

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

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

55 requests over 932ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

72% of JavaScript execution is third-party

First-party Third-party 267ms · 276KB · €1/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Unattributable Unattributable	Other	113ms	0 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	94ms	150 KB	42%	€0/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	60ms	126 KB	52%	€0/mo	Optional

Unattributable

Other

Optional

Execution 113ms

Transfer 0 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 94ms

Transfer 150 KB

Unused 42%

Monthly Cost €0/mo

Google Tag Manager

Tag Manager

Optional

Execution 60ms

Transfer 126 KB

Unused 52%

Monthly Cost €0/mo

72% 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

52% 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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