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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
45
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.
100
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.

2.45 s

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

9.46 s

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

966 ms

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

0.106

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

4.49 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.

9.48 s

Page Load Progression

488 ms
976 ms
1.5 s
2.0 s
2.4 s
2.9 s
3.4 s
3.9 s
Checks
17
7 PASS 2 REVIEW 6 FIX
F
Page Weight Budget
Action
8.1 MB transferred, 46 requests
FIX
8.1 MB transferred, 46 requests
Critical::
Page weighs 10.2 MB (8.1 MB transferred)
Warning::
JavaScript is 833 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 833 KB
Info::
46 HTTP requests
Info::
Estimated 1.7 g CO2 per page load
8.1 MB / 2.4 MB budget
8.1 MB transferred
46 requests
1.7 g CO2 per page load
Other 7.1 MiB 88%
JavaScript 832.5 KiB 10%
CSS 51.3 KiB 1%
Fonts 51.2 KiB 1%
Images 42.6 KiB 1%
HTML 30.3 KiB 0%
Other 1.3 KiB 0%
Other 1.2 KiB 0%
Other 105 B 0%
0 2.4 MB 4.9 MB
Over budget

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

D
Third-Party Impact
Action
97% third-party, 0 ms blocking
FIX
97% third-party, 0 ms blocking
Warning::
Third-party code accounts for 97% of page weight (7.9 MiB of 8.1 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-party
D
JS Execution Cost
Action
2730ms total JS execution
FIX
2730ms total JS execution
Warning::
Unattributable: 580ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-W25...: 537ms CPU time
Warning::
https://dtu.dk/: 407ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-167...: 287ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=AW-114...: 228ms CPU time
Warning::
Third-party scripts: 2154ms (79% of total)

Main Thread Breakdown

Script Evaluation 49% Other 24% Style & Layout 13% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
Unattributable580ms14ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-W25B4BH537ms453ms64ms3rd
https://dtu.dk/407ms7ms2ms1st
https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k0287ms236ms50ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-11476363041&cx=c&gtm=4e64k0228ms192ms34ms3rd
https://cdn.cookie-script.com/s/be1efe1aad9fbaeb5a003be3d5204ae9.js201ms91ms18ms3rd
https://www.googletagmanager.com/gtag/js?id=DC-15979278&cx=c&gtm=4e64k0162ms124ms37ms3rd
https://www.googletagmanager.com/gtag/js?id=DC-13694846&cx=c&gtm=4e64k0160ms134ms25ms3rd
https://dtu.dk/dist/js/0-c623f27b.pkg.js92ms69ms12ms1st
https://dtu.dk/dist/js/37-6c8ee472.pkg.js76ms13ms1ms1st
D
JS Bundles
Action
20 scripts, 303 KB unused
FIX
20 scripts, 303 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-114...: 63 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=DC-136...: 62 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=DC-159...: 62 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-167...: 62 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-W25...: 56 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 303 KB
303 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=AW-11476363041&cx=c&gtm=4e64k0145 KB63 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-13694846&cx=c&gtm=4e64k0130 KB62 KB (47%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-15979278&cx=c&gtm=4e64k0129 KB62 KB (48%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k0145 KB62 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-W25B4BH166 KB56 KB (34%)✓3rd
https://dtu.dk/dist/js/43-c1cef2bf.pkg.js1 KB—✓1st
https://dtu.dk/dist/js/62-c893bb67.pkg.js1 KB—✓1st
https://dtu.dk/dist/js/1-b366bbeb.pkg.js5 KB—✓1st
https://dtu.dk/dist/js/2-2676b503.pkg.js5 KB—✓1st
https://dtu.dk/dist/js/8-28378740.pkg.js6 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
Page Weight Inventory
Action
46 resources · 8.1 MB · 303 KB savings available
FIX
46 resources · 8.1 MB · 303 KB savings available
Warning::
Page weight 7.1 MB over 1MB target
Got: 8.1 MB Expected: ≤ 1 MB
Info::
~303 KB of savings available
Warning::
17 third-party resources (97% of weight)
Info::
1 resources over 200KB
46 resources · 8.1 MiB · 17 third-party 7.1 MiB over 1MB target
Media 88% · 7.1 MiB
JavaScript 10% · 832.5 KiB
CSS 1% · 51.3 KiB
Font 1% · 51.2 KiB
Image 1% · 43.9 KiB
Document 0% · 30.3 KiB
Other 0% · 1.3 KiB

~303.3 KiB of savings available

Remove unused JavaScript: 303.3 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
B
Image Optimization
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Info::
All images are well-optimized
12 images 43 KB
0 oversized -0 KB
11 legacy format
0 missing dimensions CLS risk
C
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
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
2 fonts (51 KB)
PASS
2 fonts (51 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

51 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.5 s LCP 9.5 shttps://use.typekit.net/af/b07eb4/00000000000000007735bb57/30/l?fvd=n7&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3l https://use.typekit.net/af/b07eb4/00000000000000007735bb57/30/l?fvd=n7&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3 — 25.8 KiB — 45 ms — font-display: swaphttps://use.typekit.net/af/b34fab/00000000000000007735bb5f/30/l?fvd=n4&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3l https://use.typekit.net/af/b34fab/00000000000000007735bb5f/30/l?fvd=n4&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3 — 25.4 KiB — 51 ms — font-display: swap
l woff2 swap
Size 26 KB
Load time 45 ms
Start 446 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 25 KB
Load time 51 ms
Start 447 ms
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
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+
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
Network Waterfall
46 requests over 1605ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.5 s LCP 9.5 shttps://dtu.dk// https://dtu.dk/ — 200 — 30.3 KiB — 269 ms — h2https://dtu.dk/dist/css/style-d4f280790e.css/dist/css/style-d4f280790e.css https://dtu.dk/dist/css/style-d4f280790e.css — 200 — 51.2 KiB — 65 ms — h2https://dtu.dk/-/media/dtu_generelt/standard_grafik/baggrundsgrafik-1920x1080/1920x1920_web_dturoed.png?cx=0.47&cy=0.47&cw=9&ch=16&hash=49CF235AC393CCEBC1F695098C2FE6E6/-/media/dtu_generelt/standard_graf... https://dtu.dk/-/media/dtu_generelt/standard_grafik/baggrundsgrafik-1920x1080/1920x1920_web_dturoed.png?cx=0.47&cy=0.47&cw=9&ch=16&hash=49CF235AC393CCEBC1F695098C2FE6E6 — 200 — 427 B — 131 ms — h2https://dtu.dk/-/media/udvikling/dtu-kommunikation/risoe-vindmoelle-forskning-adsbol.png?r=1&rkp=1&rw=10&rh=0&hash=C3D162C3ADC94F2423136A3F9B7E41F9/-/media/udvikling/dtu-kommunikatio... https://dtu.dk/-/media/udvikling/dtu-kommunikation/risoe-vindmoelle-forskning-adsbol.png?r=1&rkp=1&rw=10&rh=0&hash=C3D162C3ADC94F2423136A3F9B7E41F9 — 200 — 560 B — 134 ms — h2https://p.typekit.net/p.css?s=1&k=qfg8cpt&ht=tk&f=39475.39476.39477.39482&a=139694160&app=typekit&e=cssp.typekit.net/p.css?s=1&k=qfg8cpt&h... https://p.typekit.net/p.css?s=1&k=qfg8cpt&ht=tk&f=39475.39476.39477.39482&a=139694160&app=typekit&e=css — 200 — 172 B — 44 ms — h2https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/04/web_image00011.jpg?r=1&rkp=1&rw=10&rh=0&hash=9B639DAE05A5C4FB2866834B1F53B9B2/-/media/dtudk/nyheder/webnyheder/2... https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/04/web_image00011.jpg?r=1&rkp=1&rw=10&rh=0&hash=9B639DAE05A5C4FB2866834B1F53B9B2 — 200 — 911 B — 186 ms — h2https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/03/tim-mcaloone-genbrugsplads-genfremstilling.jpg?r=1&rkp=1&rw=10&rh=0&hash=651D3460D11E803616005C506F3FDB60/-/media/dtudk/nyheder/webnyheder/2... https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/03/tim-mcaloone-genbrugsplads-genfremstilling.jpg?r=1&rkp=1&rw=10&rh=0&hash=651D3460D11E803616005C506F3FDB60 — 200 — 934 B — 218 ms — h2https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/03/kasper-loejtved_web.jpg?r=1&rkp=1&rw=10&rh=0&hash=1D1104FD40337FAAE43D10C407C5DE00/-/media/dtudk/nyheder/webnyheder/2... https://dtu.dk/-/media/dtudk/nyheder/webnyheder/2026/03/kasper-loejtved_web.jpg?r=1&rkp=1&rw=10&rh=0&hash=1D1104FD40337FAAE43D10C407C5DE00 — 200 — 924 B — 217 ms — h2https://dtu.dk/dist/js/behaviors-1430fd18.pkg.js/dist/js/behaviors-1430fd18.pkg.js https://dtu.dk/dist/js/behaviors-1430fd18.pkg.js — 200 — 17.2 KiB — 49 ms — h2https://dtu.dk/-/media/institutter/foedevareinstituttet/nyheder/billeder/bioteknologi/computer3-dtu-foto-bax-lindhardt-copyright-dtu-1920-x-1080.jpg?r=1&rkp=1&rw=10&rh=0&hash=9752197C4364C943ED990A0FA20B082C/-/media/institutter/foedevareinsti... https://dtu.dk/-/media/institutter/foedevareinstituttet/nyheder/billeder/bioteknologi/computer3-dtu-foto-bax-lindhardt-copyright-dtu-1920-x-1080.jpg?r=1&rkp=1&rw=10&rh=0&hash=9752197C4364C943ED990A0FA20B082C — 200 — 936 B — 216 ms — h2https://dtu.dk/-/media/dtudk/kalender/kalenderen_lancier-billede-redigeret-2-002-.jpg?r=1&rkp=1&rw=10&rh=0&hash=07788A3F207D61DB1AED9EF0939F52BD/-/media/dtudk/kalender/kalenderen_... https://dtu.dk/-/media/dtudk/kalender/kalenderen_lancier-billede-redigeret-2-002-.jpg?r=1&rkp=1&rw=10&rh=0&hash=07788A3F207D61DB1AED9EF0939F52BD — 200 — 930 B — 166 ms — h2https://dtu.dk/-/media/dtudk/kalender/2026/kalenderen_konference.jpg?r=1&rkp=1&rw=10&rh=0&hash=FC74D3DEE6A4078A2E3700F91D3BF7F9/-/media/dtudk/kalender/2026/kalend... https://dtu.dk/-/media/dtudk/kalender/2026/kalenderen_konference.jpg?r=1&rkp=1&rw=10&rh=0&hash=FC74D3DEE6A4078A2E3700F91D3BF7F9 — 200 — 905 B — 164 ms — h2https://dtu.dk/-/media/dtudk/kalender/kalenderen_startup74.jpg?r=1&rkp=1&rw=10&rh=0&hash=58B4B522F8171D3BDAFC9B88E573E8C4/-/media/dtudk/kalender/kalenderen_... https://dtu.dk/-/media/dtudk/kalender/kalenderen_startup74.jpg?r=1&rkp=1&rw=10&rh=0&hash=58B4B522F8171D3BDAFC9B88E573E8C4 — 200 — 924 B — 158 ms — h2https://dtu.dk/-/media/dtu-endk/education/msc-programmes/uddannelser/chemical-and-biochemical-engineering/biomanufacturing-novo-nordisk.jpg?cx=0.50&cy=0.10&cw=9&ch=16&hash=C670C0C4FA23AC96F5A94AD4EB61F164/-/media/dtu-endk/education/msc-pro... https://dtu.dk/-/media/dtu-endk/education/msc-programmes/uddannelser/chemical-and-biochemical-engineering/biomanufacturing-novo-nordisk.jpg?cx=0.50&cy=0.10&cw=9&ch=16&hash=C670C0C4FA23AC96F5A94AD4EB61F164 — 200 — 1005 B — 172 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-W25B4BHwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-W25B4BH — 200 — 166.2 KiB — 167 ms — h2data:image/svg+xml;utf8,<svg viewBox="0 0 15.74 11.031" fill="white" id="icon-arrow-right" xmlns="h…data:image/svg+xml;utf8,<svg viewBo... data:image/svg+xml;utf8,<svg viewBox="0 0 15.74 11.031" fill="white" id="icon-arrow-right" xmlns="h… — 200 — 0 B — 0 ms — datahttps://use.typekit.net/af/b07eb4/00000000000000007735bb57/30/l?fvd=n7&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3use.typekit.net/af/b07eb4/000000000... https://use.typekit.net/af/b07eb4/00000000000000007735bb57/30/l?fvd=n7&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3 — 200 — 25.8 KiB — 45 ms — h2https://use.typekit.net/af/b34fab/00000000000000007735bb5f/30/l?fvd=n4&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3use.typekit.net/af/b34fab/000000000... https://use.typekit.net/af/b34fab/00000000000000007735bb5f/30/l?fvd=n4&primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&v=3 — 200 — 25.4 KiB — 51 ms — h2https://panopto.dtu.dk/Panopto/Podcast/Download/5f8a300c-7c95-43ab-97e8-b3de00d9abd3.mp4?mediaTargetType=videoPodcastpanopto.dtu.dk/Panopto/Podcast/Down... https://panopto.dtu.dk/Panopto/Podcast/Download/5f8a300c-7c95-43ab-97e8-b3de00d9abd3.mp4?mediaTargetType=videoPodcast — 200 — 7.1 MiB — 996 ms — http/1.1https://dtu.dk/dist/js/37-6c8ee472.pkg.js/dist/js/37-6c8ee472.pkg.js https://dtu.dk/dist/js/37-6c8ee472.pkg.js — 200 — 1.5 KiB — 41 ms — h2https://dtu.dk/dist/js/51-494685f9.pkg.js/dist/js/51-494685f9.pkg.js https://dtu.dk/dist/js/51-494685f9.pkg.js — 200 — 1.4 KiB — 44 ms — h2https://dtu.dk/dist/js/23-cf19000e.pkg.js/dist/js/23-cf19000e.pkg.js https://dtu.dk/dist/js/23-cf19000e.pkg.js — 200 — 1.6 KiB — 57 ms — h2https://dtu.dk/dist/js/43-c1cef2bf.pkg.js/dist/js/43-c1cef2bf.pkg.js https://dtu.dk/dist/js/43-c1cef2bf.pkg.js — 200 — 1012 B — 42 ms — h2https://dtu.dk/dist/js/0-c623f27b.pkg.js/dist/js/0-c623f27b.pkg.js https://dtu.dk/dist/js/0-c623f27b.pkg.js — 200 — 41.7 KiB — 69 ms — 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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
79% of JavaScript execution is third-party
First-party Third-party 2154ms · 747KB · kr170/mo
Unattributable
Other
Costly
Execution 580ms
Transfer 0 KB
Monthly Cost kr46/mo
Google Tag Manager
Tag Manager
Costly
Execution 537ms
Transfer 166 KB
Unused 34%
Monthly Cost kr42/mo
Google Tag Manager
Tag Manager
Costly
Execution 287ms
Transfer 145 KB
Unused 42%
Monthly Cost kr23/mo
Google Tag Manager
Tag Manager
Costly
Execution 228ms
Transfer 145 KB
Unused 43%
Monthly Cost kr18/mo
Cookie Script
Consent
Essential
Execution 201ms
Transfer 31 KB
Monthly Cost kr16/mo
Google Tag Manager
Tag Manager
Optional
Execution 162ms
Transfer 129 KB
Unused 48%
Monthly Cost kr13/mo
Google Tag Manager
Tag Manager
Optional
Execution 160ms
Transfer 130 KB
Unused 47%
Monthly Cost kr13/mo

These scripts may cost more than they're worth

  • Unattributable adds 580ms and costs ~kr46/month
  • Google Tag Manager adds 537ms and costs ~kr42/month
  • Google Tag Manager adds 287ms and costs ~kr23/month
  • Google Tag Manager adds 228ms and costs ~kr18/month

79% 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

Unattributable takes 580ms 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

Google Tag Manager takes 537ms 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

Google Tag Manager takes 287ms 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

Google Tag Manager takes 228ms 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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