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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
96
GRADE
A
FIX
0
REVIEW
2
PASS
13
INFO
2

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

Mobile Desktop
89
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
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.
85
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.

2.64 s

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

2.84 s

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

76 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.

4.41 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.

2.84 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
17
13 PASS 2 REVIEW
C
JS Execution Cost
Action
1231ms total JS execution
REVIEW
1231ms total JS execution
Warning::
https://symfony.com/assets/vendor/asciinema-player...: 315ms CPU time
Warning::
Unattributable: 281ms CPU time
Warning::
https://symfony.com/: 260ms CPU time
Info::
https://symfony.com/assets/asciinema-player-B0DUnC...: 248ms CPU time
Info::
https://symfony.com/assets/vendor/@hotwired/stimul...: 72ms CPU time
Info::
Third-party scripts: 337ms (27% of total)

Main Thread Breakdown

Script Evaluation 33% Other 32% Style & Layout 22% Parse HTML & CSS 7% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://symfony.com/assets/vendor/asciinema-player/asciinema-player.index-VQSUk_R.js315ms215ms1ms1st
Unattributable281ms10ms0ms3rd
https://symfony.com/260ms36ms6ms1st
https://symfony.com/assets/asciinema-player-B0DUnCB.js248ms40ms0ms1st
https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js72ms69ms0ms1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451656ms38ms4ms3rd
B
HTTP Caching
public, s-maxage=1200
REVIEW
public, s-maxage=1200
Info::
Cache-Control header is set
Got: public, s-maxage=1200
Info::
CDN TTL: 20 minutes (s-maxage=1200)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, s-maxage=1200

DirectiveValueMeaning
public—Any cache may store this response
s-maxage1200CDN caches for 20 minutes
A+
Page Weight Budget
230 KB transferred, 38 requests
PASS
230 KB transferred, 38 requests
Info::
Page weighs 1011 KB (230 KB transferred)
Info::
38 HTTP requests
Info::
Estimated 0.05 g CO2 per page load
230 KB / 2.4 MB budget
230 KB transferred
38 requests
0.05 g CO2 per page load
JavaScript 125.9 KiB 55%
HTML 34.1 KiB 15%
Images 29.0 KiB 13%
Other 28.1 KiB 12%
Other 5.2 KiB 2%
CSS 5.0 KiB 2%
Other 1.6 KiB 1%
Other 909 B 0%
Other 378 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
15% third-party, 0 ms blocking
PASS
15% third-party, 0 ms blocking
Info::
Third-party code accounts for 15% of page weight (34.8 KiB of 230.2 KiB)
Info::
Third-party blocking time is low (0 ms)
85%
15%
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
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 29 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
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+
JS Bundles
18 scripts, 0 KB unused
PASS
18 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://symfony.com/assets/app-iodFN2G.js1 KB—✓1st
https://symfony.com/assets/vendor/bootstrap/js/src/offcanvas-HKB-RdI.js6 KB—✓1st
https://symfony.com/assets/stimulus-NEEjnKA.js0 KB—✓1st
https://symfony.com/assets/@symfony/stimulus-bundle/loader-IOzBDLu.js1 KB—✓1st
https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js12 KB—✓1st
https://symfony.com/assets/@symfony/stimulus-bundle/controllers-67OXZ9x.js1 KB—✓1st
https://symfony.com/assets/@symfony/ux-live-component/live_controller-qMGNvHD.js20 KB—✗1st
https://symfony.com/assets/controllers/download_chart_controller-c-oBQZq.js1 KB—✓1st
https://symfony.com/assets/controllers/eventsmap_controller-3shcJI3.js1 KB—✓1st
https://symfony.com/assets/search-ID8xbgA.js2 KB—✓1st
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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
Page uses 1 resource hint(s)

Current Resource Hints

preconnect
1
preload
—
dns-prefetch
—
prefetch
—

1 resource hints configured

A+
Page Weight Inventory
38 resources · 230 KB · 0 KB savings available
PASS
38 resources · 230 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 230 KB
Info::
8 third-party resources (15% of weight)
38 resources · 230.2 KiB · 8 third-party Within 1MB page-weight target
JavaScript 55% · 126.5 KiB
Document 27% · 62.2 KiB
Image 13% · 30.6 KiB
Other 3% · 5.9 KiB
CSS 2% · 5.0 KiB
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

Network Waterfall
38 requests over 2298ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.6 s LCP 2.8 shttps://symfony.com// https://symfony.com/ — 200 — 34.1 KiB — 625 ms — h2https://symfony.com/assets/vendor/bootstrap/dist/css/bootstrap.min-FxLwN4-.css/assets/vendor/bootstrap/dist/css/b... https://symfony.com/assets/vendor/bootstrap/dist/css/bootstrap.min-FxLwN4-.css — 200 — 0 B — 11 ms — h2https://symfony.com/assets/styles/color-palette-duDtCWP.css/assets/styles/color-palette-duDtCW... https://symfony.com/assets/styles/color-palette-duDtCWP.css — 200 — 0 B — 10 ms — h2https://symfony.com/assets/styles/app-sOLyW0B.css/assets/styles/app-sOLyW0B.css https://symfony.com/assets/styles/app-sOLyW0B.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/styles/ui-components-cSbA7fS.css/assets/styles/ui-components-cSbA7f... https://symfony.com/assets/styles/ui-components-cSbA7fS.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/@symfony/ux-live-component/live.min-WRZuO3t.css/assets/@symfony/ux-live-component/... https://symfony.com/assets/@symfony/ux-live-component/live.min-WRZuO3t.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/styles/search-tiOqfPE.css/assets/styles/search-tiOqfPE.css https://symfony.com/assets/styles/search-tiOqfPE.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/vendor/asciinema-player/dist/bundle/asciinema-player.min-JgMTBu2.css/assets/vendor/asciinema-player/dis... https://symfony.com/assets/vendor/asciinema-player/dist/bundle/asciinema-player.min-JgMTBu2.css — 200 — 0 B — 14 ms — h2https://symfony.com/assets/styles/home-pOn81S4.css/assets/styles/home-pOn81S4.css https://symfony.com/assets/styles/home-pOn81S4.css — 200 — 0 B — 14 ms — h2https://symfony.com/assets/app-iodFN2G.js/assets/app-iodFN2G.js https://symfony.com/assets/app-iodFN2G.js — 200 — 912 B — 23 ms — h2https://symfony.com/assets/vendor/bootstrap/js/src/offcanvas-HKB-RdI.js/assets/vendor/bootstrap/js/src/off... https://symfony.com/assets/vendor/bootstrap/js/src/offcanvas-HKB-RdI.js — 200 — 6.2 KiB — 39 ms — h2https://symfony.com/assets/stimulus-NEEjnKA.js/assets/stimulus-NEEjnKA.js https://symfony.com/assets/stimulus-NEEjnKA.js — 200 — 509 B — 18 ms — h2https://symfony.com/assets/@symfony/stimulus-bundle/loader-IOzBDLu.js/assets/@symfony/stimulus-bundle/lo... https://symfony.com/assets/@symfony/stimulus-bundle/loader-IOzBDLu.js — 200 — 1.3 KiB — 27 ms — h2https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js/assets/vendor/@hotwired/stimulus/s... https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js — 200 — 12.2 KiB — 33 ms — h2https://symfony.com/assets/@symfony/stimulus-bundle/controllers-67OXZ9x.js/assets/@symfony/stimulus-bundle/co... https://symfony.com/assets/@symfony/stimulus-bundle/controllers-67OXZ9x.js — 200 — 609 B — 28 ms — h2https://symfony.com/assets/@symfony/ux-live-component/live_controller-qMGNvHD.js/assets/@symfony/ux-live-component/... https://symfony.com/assets/@symfony/ux-live-component/live_controller-qMGNvHD.js — 200 — 19.6 KiB — 51 ms — h2https://symfony.com/assets/controllers/download_chart_controller-c-oBQZq.js/assets/controllers/download_chart_... https://symfony.com/assets/controllers/download_chart_controller-c-oBQZq.js — 200 — 1.5 KiB — 30 ms — h2https://symfony.com/assets/controllers/eventsmap_controller-3shcJI3.js/assets/controllers/eventsmap_contr... https://symfony.com/assets/controllers/eventsmap_controller-3shcJI3.js — 200 — 719 B — 31 ms — h2https://symfony.com/assets/search-ID8xbgA.js/assets/search-ID8xbgA.js https://symfony.com/assets/search-ID8xbgA.js — 200 — 1.7 KiB — 34 ms — h2https://symfony.com/assets/vendor/mousetrap/mousetrap.index-lPOL09R.js/assets/vendor/mousetrap/mousetrap.... https://symfony.com/assets/vendor/mousetrap/mousetrap.index-lPOL09R.js — 200 — 2.8 KiB — 49 ms — h2https://symfony.com/assets/home-L0byq_8.js/assets/home-L0byq_8.js https://symfony.com/assets/home-L0byq_8.js — 200 — 396 B — 39 ms — h2https://symfony.com/assets/asciinema-player-B0DUnCB.js/assets/asciinema-player-B0DUnCB.js https://symfony.com/assets/asciinema-player-B0DUnCB.js — 200 — 652 B — 41 ms — h2https://symfony.com/assets/vendor/asciinema-player/asciinema-player.index-VQSUk_R.js/assets/vendor/asciinema-player/asc... https://symfony.com/assets/vendor/asciinema-player/asciinema-player.index-VQSUk_R.js — 200 — 60.5 KiB — 51 ms — h2https://connect.symfony.com/css/sln.cssconnect.symfony.com/css/sln.css https://connect.symfony.com/css/sln.css — 200 — 5.0 KiB — 21 ms — h2data:application/javascript,data:application/javascript, data:application/javascript, — 200 — 0 B — 0 ms — datahttps://connect.symfony.com/sln.js?customize_url=https%3A%2F%2Fsymfony.com%2Faccount%2Fsln_customiser.jsconnect.symfony.com/sln.js?customiz... https://connect.symfony.com/sln.js?customize_url=https%3A%2F%2Fsymfony.com%2Faccount%2Fsln_customiser.js — 200 — 5.8 KiB — 966 ms — h2https://symfony.com/static/webmanifest.json/static/webmanifest.json https://symfony.com/static/webmanifest.json — 200 — 909 B — 194 ms — h2https://symfony.com/assets/icons/logos/sf-20years-wordmark-dark--dFsFxh.webp/assets/icons/logos/sf-20years-word... https://symfony.com/assets/icons/logos/sf-20years-wordmark-dark--dFsFxh.webp — 200 — 15.7 KiB — 752 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 39 ms — h2data:image/svg+xml;utf8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGNsYXNzPSJoLTYg…data:image/svg+xml;utf8;base64,PHN2... data:image/svg+xml;utf8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGNsYXNzPSJoLTYg… — 200 — 0 B — 0 ms — data
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.6 s LCP 2.8 shttps://symfony.com// https://symfony.com/ — 200 — 34.1 KiB — 625 ms — h2https://symfony.com/assets/vendor/bootstrap/dist/css/bootstrap.min-FxLwN4-.css/assets/vendor/bootstrap/dist/css/b... https://symfony.com/assets/vendor/bootstrap/dist/css/bootstrap.min-FxLwN4-.css — 200 — 0 B — 11 ms — h2https://symfony.com/assets/styles/color-palette-duDtCWP.css/assets/styles/color-palette-duDtCW... https://symfony.com/assets/styles/color-palette-duDtCWP.css — 200 — 0 B — 10 ms — h2https://symfony.com/assets/styles/app-sOLyW0B.css/assets/styles/app-sOLyW0B.css https://symfony.com/assets/styles/app-sOLyW0B.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/styles/ui-components-cSbA7fS.css/assets/styles/ui-components-cSbA7f... https://symfony.com/assets/styles/ui-components-cSbA7fS.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/@symfony/ux-live-component/live.min-WRZuO3t.css/assets/@symfony/ux-live-component/... https://symfony.com/assets/@symfony/ux-live-component/live.min-WRZuO3t.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/styles/search-tiOqfPE.css/assets/styles/search-tiOqfPE.css https://symfony.com/assets/styles/search-tiOqfPE.css — 200 — 0 B — 13 ms — h2https://symfony.com/assets/vendor/asciinema-player/dist/bundle/asciinema-player.min-JgMTBu2.css/assets/vendor/asciinema-player/dis... https://symfony.com/assets/vendor/asciinema-player/dist/bundle/asciinema-player.min-JgMTBu2.css — 200 — 0 B — 14 ms — h2https://symfony.com/assets/styles/home-pOn81S4.css/assets/styles/home-pOn81S4.css https://symfony.com/assets/styles/home-pOn81S4.css — 200 — 0 B — 14 ms — h2https://symfony.com/assets/app-iodFN2G.js/assets/app-iodFN2G.js https://symfony.com/assets/app-iodFN2G.js — 200 — 912 B — 23 ms — h2https://symfony.com/assets/vendor/bootstrap/js/src/offcanvas-HKB-RdI.js/assets/vendor/bootstrap/js/src/off... https://symfony.com/assets/vendor/bootstrap/js/src/offcanvas-HKB-RdI.js — 200 — 6.2 KiB — 39 ms — h2https://symfony.com/assets/stimulus-NEEjnKA.js/assets/stimulus-NEEjnKA.js https://symfony.com/assets/stimulus-NEEjnKA.js — 200 — 509 B — 18 ms — h2https://symfony.com/assets/@symfony/stimulus-bundle/loader-IOzBDLu.js/assets/@symfony/stimulus-bundle/lo... https://symfony.com/assets/@symfony/stimulus-bundle/loader-IOzBDLu.js — 200 — 1.3 KiB — 27 ms — h2https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js/assets/vendor/@hotwired/stimulus/s... https://symfony.com/assets/vendor/@hotwired/stimulus/stimulus.index-S4zNcea.js — 200 — 12.2 KiB — 33 ms — h2https://symfony.com/assets/@symfony/stimulus-bundle/controllers-67OXZ9x.js/assets/@symfony/stimulus-bundle/co... https://symfony.com/assets/@symfony/stimulus-bundle/controllers-67OXZ9x.js — 200 — 609 B — 28 ms — h2https://symfony.com/assets/@symfony/ux-live-component/live_controller-qMGNvHD.js/assets/@symfony/ux-live-component/... https://symfony.com/assets/@symfony/ux-live-component/live_controller-qMGNvHD.js — 200 — 19.6 KiB — 51 ms — h2https://symfony.com/assets/controllers/download_chart_controller-c-oBQZq.js/assets/controllers/download_chart_... https://symfony.com/assets/controllers/download_chart_controller-c-oBQZq.js — 200 — 1.5 KiB — 30 ms — h2https://symfony.com/assets/controllers/eventsmap_controller-3shcJI3.js/assets/controllers/eventsmap_contr... https://symfony.com/assets/controllers/eventsmap_controller-3shcJI3.js — 200 — 719 B — 31 ms — h2https://symfony.com/assets/search-ID8xbgA.js/assets/search-ID8xbgA.js https://symfony.com/assets/search-ID8xbgA.js — 200 — 1.7 KiB — 34 ms — h2https://symfony.com/assets/vendor/mousetrap/mousetrap.index-lPOL09R.js/assets/vendor/mousetrap/mousetrap.... https://symfony.com/assets/vendor/mousetrap/mousetrap.index-lPOL09R.js — 200 — 2.8 KiB — 49 ms — h2https://symfony.com/assets/home-L0byq_8.js/assets/home-L0byq_8.js https://symfony.com/assets/home-L0byq_8.js — 200 — 396 B — 39 ms — h2https://symfony.com/assets/asciinema-player-B0DUnCB.js/assets/asciinema-player-B0DUnCB.js https://symfony.com/assets/asciinema-player-B0DUnCB.js — 200 — 652 B — 41 ms — h2https://symfony.com/assets/vendor/asciinema-player/asciinema-player.index-VQSUk_R.js/assets/vendor/asciinema-player/asc... https://symfony.com/assets/vendor/asciinema-player/asciinema-player.index-VQSUk_R.js — 200 — 60.5 KiB — 51 ms — h2https://connect.symfony.com/css/sln.cssconnect.symfony.com/css/sln.css https://connect.symfony.com/css/sln.css — 200 — 5.0 KiB — 21 ms — h2data:application/javascript,data:application/javascript, data:application/javascript, — 200 — 0 B — 0 ms — datahttps://connect.symfony.com/sln.js?customize_url=https%3A%2F%2Fsymfony.com%2Faccount%2Fsln_customiser.jsconnect.symfony.com/sln.js?customiz... https://connect.symfony.com/sln.js?customize_url=https%3A%2F%2Fsymfony.com%2Faccount%2Fsln_customiser.js — 200 — 5.8 KiB — 966 ms — h2https://symfony.com/static/webmanifest.json/static/webmanifest.json https://symfony.com/static/webmanifest.json — 200 — 909 B — 194 ms — h2https://symfony.com/assets/icons/logos/sf-20years-wordmark-dark--dFsFxh.webp/assets/icons/logos/sf-20years-word... https://symfony.com/assets/icons/logos/sf-20years-wordmark-dark--dFsFxh.webp — 200 — 15.7 KiB — 752 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 39 ms — h2data:image/svg+xml;utf8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGNsYXNzPSJoLTYg…data:image/svg+xml;utf8;base64,PHN2... data:image/svg+xml;utf8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGNsYXNzPSJoLTYg… — 200 — 0 B — 0 ms — datahttps://symfony.com/blog//blog/ https://symfony.com/blog/ — 200 — 28.1 KiB — 228 ms — h2https://symfony.com/recordings/home-upsun.txt/recordings/home-upsun.txt https://symfony.com/recordings/home-upsun.txt — 200 — 4.6 KiB — 166 ms — h2https://symfony.com/account/sln_customiser.js/account/sln_customiser.js https://symfony.com/account/sln_customiser.js — 200 — 605 B — 820 ms — h2https://symfony.com/cdn-cgi/rum?/cdn-cgi/rum? https://symfony.com/cdn-cgi/rum? — 204 — 378 B — 10 ms — h2https://symfony.com/favicons/favicon.svg/favicons/favicon.svg https://symfony.com/favicons/favicon.svg — 200 — 1.6 KiB — 639 ms — h2https://connect.symfony.com/uploads/sln/1991a94e-4351-4af1-88ab-4f17f6d20f45/8697a26e-20ac-429a-8da7-510bf022a7c8.pngconnect.symfony.com/uploads/sln/199... https://connect.symfony.com/uploads/sln/1991a94e-4351-4af1-88ab-4f17f6d20f45/8697a26e-20ac-429a-8da7-510bf022a7c8.png — 200 — 12.7 KiB — 18 ms — h2https://connect.symfony.com/assets/images/sln-v2/triangle-down-CKqgJN9.pngconnect.symfony.com/assets/images/s... https://connect.symfony.com/assets/images/sln-v2/triangle-down-CKqgJN9.png — 200 — 615 B — 15 ms — h2data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16…www.w3.org/2000/svg" width="16" hei... data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16… — 200 — 0 B — 0 ms — data
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
27% of JavaScript execution is third-party
First-party Third-party 337ms · 11KB · €5/mo
Unattributable
Other
Costly
Execution 281ms
Transfer 0 KB
Monthly Cost €4/mo
static.cloudflareinsights.com
Other
Optional
Execution 56ms
Transfer 11 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 281ms and costs ~€4/month

Unattributable takes 281ms 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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