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Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
3
REVIEW
6
PASS
11
INFO
3

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

97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
87
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

719 ms

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

1.25 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.

0.023

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

797 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.25 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
23
11 PASS 6 REVIEW 3 FIX
F
Page Weight Budget
Action
4.7 MB transferred, 31 requests
FIX
4.7 MB transferred, 31 requests
Critical::
Page weighs 5.0 MB (4.7 MB transferred)
Warning::
Images are 4.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.2 MB
Info::
CSS is 266 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 266 KB
Info::
31 HTTP requests
Info::
Estimated 0.98 g CO2 per page load
4.7 MB / 2.4 MB budget
4.7 MB transferred
31 requests
0.98 g CO2 per page load
Images 4.2 MiB 91%
CSS 266.5 KiB 6%
Fonts 110.2 KiB 2%
HTML 39.4 KiB 1%
JavaScript 24.3 KiB 1%
Other 3.3 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (4.7 MiB of 4.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
31 resources · 4.7 MB · 0 KB savings available
FIX
31 resources · 4.7 MB · 0 KB savings available
Warning::
Page weight 4.7 MB exceeds 1 MB target by 3.7 MB
Got: 4.7 MB Expected: ≤ 1 MB
Warning::
30 third-party resources (100% of weight)
Info::
7 resources over 200KB
31 resources · 4.7 MiB · 30 third-party 3.7 MiB over 1MB target
Image 91% · 4.2 MiB
CSS 6% · 266.5 KiB
Font 2% · 110.2 KiB
Document 1% · 39.5 KiB
JavaScript 1% · 24.3 KiB
C
Image Optimization
Action
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/082... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/bf8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/12c... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/a20... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/65a... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/de3... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/cc4... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/365... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://truecloud.nl/wp-content/uploads/go-x/u/baa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 4.2 MB
0 oversized -0 KB
11 legacy format
9 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

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

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

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Document Compression
Action
Document response served uncompressed
REVIEW
Document response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Asset Compression
1 of 1 asset host serve text uncompressed
REVIEW
1 of 1 asset host serve text uncompressed
Warning::
truecloud.nl serves text assets uncompressed (assets: 20)
The sampled response carries a text content type but no Content-Encoding, so the bytes go over the wire raw. Text compression typically removes 70-80% of a JS or CSS payload -- this is the single cheapest transfer win available on this host.
Got: truecloud.nl (text/css)
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
B
HTTP Caching
no-cache
REVIEW
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache

DirectiveValueMeaning
no-cache—Cache but always revalidate first
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
266ms total JS execution
PASS
266ms total JS execution
Info::
https://truecloud.nl/: 194ms CPU time
Info::
Unattributable: 72ms CPU time
Warning::
Third-party scripts: 194ms (73% of total)

Main Thread Breakdown

Other 63% Style & Layout 19% Parse HTML & CSS 6% Script Evaluation 6% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://truecloud.nl/194ms3ms2ms3rd
Unattributable72ms1ms0ms1st
A+
Font Loading
5 fonts (110 KB)
PASS
5 fonts (110 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

110 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 719 ms LCP 1.2 shttps://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-regular.woffOpenSans-latin_latin-ex... https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-regular.woff — 24.1 KiB — 48 ms — font-display: swaphttps://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-regular.woffPoppins-latin_latin-ext... https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-regular.woff — 14.0 KiB — 56 ms — font-display: swaphttps://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-700.woffPoppins-latin_latin-ext... https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-700.woff — 13.9 KiB — 85 ms — font-display: swaphttps://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-italic.woffOpenSans-latin_latin-ex... https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-italic.woff — 23.2 KiB — 1.0 s — font-display: swaphttps://truecloud.nl/wp-content/themes/gox/public/fonts/Merriweather-latin_latin-ext-regular.woffMerriweather-latin_lati... https://truecloud.nl/wp-content/themes/gox/public/fonts/Merriweather-latin_latin-ext-regular.woff — 35.1 KiB — 1.2 s — font-display: swap
OpenSans-latin_latin-ex... woff swap
Size 24 KB
Load time 48 ms
Start 593 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Poppins-latin_latin-ext... woff swap
Size 14 KB
Load time 56 ms
Start 593 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Poppins-latin_latin-ext... woff swap
Size 14 KB
Load time 85 ms
Start 597 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
OpenSans-latin_latin-ex... woff swap
Size 23 KB
Load time 1.0 s
Start 597 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Merriweather-latin_lati... woff swap
Size 35 KB
Load time 1.2 s
Start 597 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 ~33 KB and ~66 ms

A+
JS Bundles
8 scripts, 0 KB unused
PASS
8 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://truecloud.nl/wp-includes/js/dist/hooks.min.js?ver=7496969728ca0f95732d5 KB—✓3rd
https://truecloud.nl/wp-includes/js/dist/i18n.min.js?ver=781d11515ad3d91786ec6 KB—✓3rd
https://truecloud.nl/wp-content/plugins/go-x-post-editor/build/index-fe.js?ver=a97418810f010c7a27863 KB—✓3rd
https://truecloud.nl/wp-content/plugins/go-x-blocks/js/accessNavigationList/accessNavigationList.js?ver=1.0.6%2Bccbab206881 KB—✓3rd
https://truecloud.nl/wp-content/plugins/go-x-blocks/js/consent/consent.js?ver=1.0.6%2Bccbab206884 KB—✓3rd
https://truecloud.nl/wp-content/plugins/go-x-blocks/js/downloadWarning/downloadWarning.js?ver=1.0.6%2Bccbab206881 KB—✓3rd
blob:https://truecloud.nl/3f435374-f75c-4a1c-9b98-de54d6713b2d-0 KB—✓3rd
https://truecloud.nl/wp-includes/js/wp-emoji-release.min.js?ver=7.0.64 KB—✓3rd
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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML uses no-cache -- safe revalidate-on-request policy
PASS
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: IONOS SE

Network Waterfall
31 requests over 1920ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 719 ms LCP 1.2 shttps://www.truecloud.nl// https://www.truecloud.nl/ — 302 — 164 B — 127 ms — h2https://truecloud.nl/truecloud.nl/ https://truecloud.nl/ — 200 — 39.4 KiB — 295 ms — h2https://truecloud.nl/wp-content/plugins/go-x-post-editor/build/index-fe.css?ver=1790249206truecloud.nl/wp-content/plugins/go-... https://truecloud.nl/wp-content/plugins/go-x-post-editor/build/index-fe.css?ver=1790249206 — 200 — 5.1 KiB — 38 ms — h2https://truecloud.nl/wp-content/uploads/go-x/style.css?ver=1.0.6%2Bccbab20688truecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/style.css?ver=1.0.6%2Bccbab20688 — 200 — 261.4 KiB — 128 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/08231d85-1a61-4f70-bfad-b9e9880d1213/image-455x455.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/08231d85-1a61-4f70-bfad-b9e9880d1213/image-455x455.png — 200 — 105.0 KiB — 108 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/bf82188a-858e-4f9d-91ff-84800a7a93a3/l0,t0,w1254,h1254/image.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/bf82188a-858e-4f9d-91ff-84800a7a93a3/l0,t0,w1254,h1254/image.png — 200 — 734.7 KiB — 158 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/12cd0bea-b93a-472d-a48e-8013fa435ea6/l0,t0,w1024,h1024/image.jpgtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/12cd0bea-b93a-472d-a48e-8013fa435ea6/l0,t0,w1024,h1024/image.jpg — 200 — 52.8 KiB — 68 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/de3a8e1e-a073-41b7-923e-42bd4eb5ebc0/l0,t0,w1254,h1254/image.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/de3a8e1e-a073-41b7-923e-42bd4eb5ebc0/l0,t0,w1254,h1254/image.png — 200 — 629.0 KiB — 65 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/a206b331-f0d9-4ced-af50-5b7c987a2350/l46,t22,w1163,h1163/image.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/a206b331-f0d9-4ced-af50-5b7c987a2350/l46,t22,w1163,h1163/image.png — 200 — 817.2 KiB — 716 ms — h2https://truecloud.nl/wp-includes/js/dist/hooks.min.js?ver=7496969728ca0f95732dtruecloud.nl/wp-includes/js/dist/ho... https://truecloud.nl/wp-includes/js/dist/hooks.min.js?ver=7496969728ca0f95732d — 200 — 5.2 KiB — 42 ms — h2https://truecloud.nl/wp-includes/js/dist/i18n.min.js?ver=781d11515ad3d91786ectruecloud.nl/wp-includes/js/dist/i1... https://truecloud.nl/wp-includes/js/dist/i18n.min.js?ver=781d11515ad3d91786ec — 200 — 5.8 KiB — 101 ms — h2https://truecloud.nl/wp-content/plugins/go-x-post-editor/build/index-fe.js?ver=a97418810f010c7a2786truecloud.nl/wp-content/plugins/go-... https://truecloud.nl/wp-content/plugins/go-x-post-editor/build/index-fe.js?ver=a97418810f010c7a2786 — 200 — 3.4 KiB — 297 ms — h2https://truecloud.nl/wp-content/plugins/go-x-blocks/js/accessNavigationList/accessNavigationList.js?ver=1.0.6%2Bccbab20688truecloud.nl/wp-content/plugins/go-... https://truecloud.nl/wp-content/plugins/go-x-blocks/js/accessNavigationList/accessNavigationList.js?ver=1.0.6%2Bccbab20688 — 200 — 565 B — 496 ms — h2https://truecloud.nl/wp-content/plugins/go-x-blocks/js/consent/consent.js?ver=1.0.6%2Bccbab20688truecloud.nl/wp-content/plugins/go-... https://truecloud.nl/wp-content/plugins/go-x-blocks/js/consent/consent.js?ver=1.0.6%2Bccbab20688 — 200 — 3.6 KiB — 73 ms — h2https://truecloud.nl/wp-content/plugins/go-x-blocks/js/downloadWarning/downloadWarning.js?ver=1.0.6%2Bccbab20688truecloud.nl/wp-content/plugins/go-... https://truecloud.nl/wp-content/plugins/go-x-blocks/js/downloadWarning/downloadWarning.js?ver=1.0.6%2Bccbab20688 — 200 — 1.2 KiB — 896 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/65a6f9cf-8356-4fff-a4a2-075552d186aa/l0,t0,w1254,h1254/image.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/65a6f9cf-8356-4fff-a4a2-075552d186aa/l0,t0,w1254,h1254/image.png — 200 — 655.7 KiB — 101 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/cc4339a7-a87c-4f52-ba1a-856ea6c8020b/l0,t0,w1254,h1254/image.pngtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/cc4339a7-a87c-4f52-ba1a-856ea6c8020b/l0,t0,w1254,h1254/image.png — 200 — 629.6 KiB — 233 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/365f92b3-fa04-4cba-a6f4-ac277829b295/l0,t0,w1086,h1448/image-480x640.jpgtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/365f92b3-fa04-4cba-a6f4-ac277829b295/l0,t0,w1086,h1448/image-480x640.jpg — 200 — 58.7 KiB — 234 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/baaeba27-1027-4191-9809-364c7959b38c/l268,t0,w2023,h2023/image-569x569.jpgtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/baaeba27-1027-4191-9809-364c7959b38c/l268,t0,w2023,h2023/image-569x569.jpg — 200 — 33.8 KiB — 140 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/c1c77425-bd7c-4859-bd4b-76f0e5dee491/image.jpgtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/c1c77425-bd7c-4859-bd4b-76f0e5dee491/image.jpg — 200 — 538.2 KiB — 175 ms — h2https://truecloud.nl/wp-content/uploads/go-x/u/9de06066-a01e-4d50-92e1-99b08b0843f6/image.jpgtruecloud.nl/wp-content/uploads/go-... https://truecloud.nl/wp-content/uploads/go-x/u/9de06066-a01e-4d50-92e1-99b08b0843f6/image.jpg — 200 — 81.8 KiB — 179 ms — h2https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-regular.wofftruecloud.nl/wp-content/themes/gox/... https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-regular.woff — 200 — 24.1 KiB — 48 ms — h2https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-regular.wofftruecloud.nl/wp-content/themes/gox/... https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-regular.woff — 200 — 14.0 KiB — 56 ms — h2https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-700.wofftruecloud.nl/wp-content/themes/gox/... https://truecloud.nl/wp-content/themes/gox/public/fonts/Poppins-latin_latin-ext-700.woff — 200 — 13.9 KiB — 85 ms — h2https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-italic.wofftruecloud.nl/wp-content/themes/gox/... https://truecloud.nl/wp-content/themes/gox/public/fonts/OpenSans-latin_latin-ext-italic.woff — 200 — 23.2 KiB — 1.0 s — 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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
73% of JavaScript execution is third-party
First-party Third-party 194ms · 39KB · €2/mo
truecloud.nl
Other
Optional
Execution 194ms
Transfer 39 KB
Monthly Cost €2/mo

73% 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

How third-party costs are calculated

Image Optimization
9 images, 3698 KB total, 3530 KB wasted
INFO

Image Optimization Audit

Total Images

9

Total Size

3698 KB

Oversized

7

Wasted

3530 KB

8 missing alt text 9 missing dimensions 8 missing lazy loading
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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