Skip to content
https://dtu.dk

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
93
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.

797 ms

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

1.19 s

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

26 ms

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

0.108

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

1.26 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.

1.46 s

Page Load Progression

475 ms
949 ms
1.4 s
1.9 s
2.4 s
2.8 s
3.3 s
3.8 s
Checks
15
5 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
8.1 MB transferred, 47 requests
FIX
8.1 MB transferred, 47 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::
47 HTTP requests
Info::
Estimated 1.7 g CO2 per page load
8.1 MB / 2.4 MB budget
8.1 MB transferred
47 requests
1.7 g CO2 per page load
Other 7.1 MiB 88%
JavaScript 832.6 KiB 10%
CSS 51.3 KiB 1%
Fonts 51.2 KiB 1%
Images 46.0 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 Bundles
Action
20 scripts, 306 KB unused
FIX
20 scripts, 306 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-114...: 66 KB unused (45%)
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=DC-136...: 62 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-167...: 61 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: 306 KB
306 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=AW-11476363041&cx=c&gtm=4e64k0145 KB66 KB (45%)✓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=DC-13694846&cx=c&gtm=4e64k0130 KB62 KB (47%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k0145 KB61 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
47 resources · 8.1 MB · 306 KB savings available
FIX
47 resources · 8.1 MB · 306 KB savings available
Warning::
Page weight 7.1 MB over 1MB target
Got: 8.1 MB Expected: ≤ 1 MB
Info::
~306 KB of savings available
Warning::
18 third-party resources (97% of weight)
Info::
1 resources over 200KB
47 resources · 8.1 MiB · 18 third-party 7.1 MiB over 1MB target
Media 88% · 7.1 MiB
JavaScript 10% · 832.6 KiB
CSS 1% · 51.3 KiB
Font 1% · 51.2 KiB
Image 1% · 47.3 KiB
Document 0% · 30.3 KiB
Other 0% · 1.3 KiB

~306.3 KiB of savings available

Remove unused JavaScript: 306.3 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
13 images, 0 KB saveable
REVIEW
13 images, 0 KB saveable
Info::
All images are well-optimized
13 images 46 KB
0 oversized -0 KB
12 legacy format
0 missing dimensions CLS risk
B
JS Execution Cost
511ms total JS execution
REVIEW
511ms total JS execution
Info::
Unattributable: 156ms CPU time
Info::
https://dtu.dk/: 126ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-W25...: 119ms CPU time
Info::
https://cdn.cookie-script.com/s/be1efe1aad9fbaeb5a...: 58ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=AW-167...: 51ms CPU time
Warning::
Third-party scripts: 385ms (75% of total)

Main Thread Breakdown

Script Evaluation 46% Other 26% Style & Layout 14% Script Parsing & Compilation 7% Rendering 3%
ScriptTotalScriptingParse/CompileParty
Unattributable156ms3ms0ms3rd
https://dtu.dk/126ms1ms0ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-W25B4BH119ms104ms14ms3rd
https://cdn.cookie-script.com/s/be1efe1aad9fbaeb5a003be3d5204ae9.js58ms24ms4ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k051ms43ms8ms3rd
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 500 ms 1.0 s FCP 797 ms LCP 1.2 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 — 16 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 — 23 ms — font-display: swap
l woff2 swap
Size 26 KB
Load time 16 ms
Start 431 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 25 KB
Load time 23 ms
Start 431 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
Network Waterfall
47 requests over 1525ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 797 ms LCP 1.2 shttps://dtu.dk// https://dtu.dk/ — 200 — 30.3 KiB — 251 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 — 67 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 — 109 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 — 110 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 — 46 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 — 106 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 — 108 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 — 116 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 — 43 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 — 118 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 — 113 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 — 111 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 — 112 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 — 116 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 — 185 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 — 16 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 — 23 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 — 757 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 — 72 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 — 72 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 — 50 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 — 56 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 — 74 ms — h2https://dtu.dk/dist/js/1-b366bbeb.pkg.js/dist/js/1-b366bbeb.pkg.js https://dtu.dk/dist/js/1-b366bbeb.pkg.js — 200 — 4.9 KiB — 50 ms — h2https://dtu.dk/dist/js/2-2676b503.pkg.js/dist/js/2-2676b503.pkg.js https://dtu.dk/dist/js/2-2676b503.pkg.js — 200 — 5.3 KiB — 57 ms — h2https://dtu.dk/dist/js/8-28378740.pkg.js/dist/js/8-28378740.pkg.js https://dtu.dk/dist/js/8-28378740.pkg.js — 200 — 6.1 KiB — 69 ms — h2https://dtu.dk/dist/js/45-ec0a1723.pkg.js/dist/js/45-ec0a1723.pkg.js https://dtu.dk/dist/js/45-ec0a1723.pkg.js — 200 — 1.5 KiB — 43 ms — h2https://dtu.dk/dist/js/42-778c42d9.pkg.js/dist/js/42-778c42d9.pkg.js https://dtu.dk/dist/js/42-778c42d9.pkg.js — 200 — 1.2 KiB — 42 ms — h2https://dtu.dk/dist/js/62-c893bb67.pkg.js/dist/js/62-c893bb67.pkg.js https://dtu.dk/dist/js/62-c893bb67.pkg.js — 200 — 683 B — 68 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 797 ms LCP 1.2 shttps://dtu.dk// https://dtu.dk/ — 200 — 30.3 KiB — 251 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 — 67 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 — 109 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 — 110 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 — 46 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 — 106 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 — 108 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 — 116 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 — 43 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 — 118 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 — 113 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 — 111 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 — 112 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 — 116 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 — 185 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 — 16 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 — 23 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 — 757 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 — 72 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 — 72 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 — 50 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 — 56 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 — 74 ms — h2https://dtu.dk/dist/js/1-b366bbeb.pkg.js/dist/js/1-b366bbeb.pkg.js https://dtu.dk/dist/js/1-b366bbeb.pkg.js — 200 — 4.9 KiB — 50 ms — h2https://dtu.dk/dist/js/2-2676b503.pkg.js/dist/js/2-2676b503.pkg.js https://dtu.dk/dist/js/2-2676b503.pkg.js — 200 — 5.3 KiB — 57 ms — h2https://dtu.dk/dist/js/8-28378740.pkg.js/dist/js/8-28378740.pkg.js https://dtu.dk/dist/js/8-28378740.pkg.js — 200 — 6.1 KiB — 69 ms — h2https://dtu.dk/dist/js/45-ec0a1723.pkg.js/dist/js/45-ec0a1723.pkg.js https://dtu.dk/dist/js/45-ec0a1723.pkg.js — 200 — 1.5 KiB — 43 ms — h2https://dtu.dk/dist/js/42-778c42d9.pkg.js/dist/js/42-778c42d9.pkg.js https://dtu.dk/dist/js/42-778c42d9.pkg.js — 200 — 1.2 KiB — 42 ms — h2https://dtu.dk/dist/js/62-c893bb67.pkg.js/dist/js/62-c893bb67.pkg.js https://dtu.dk/dist/js/62-c893bb67.pkg.js — 200 — 683 B — 68 ms — h2https://dtu.dk/dist/js/64-ba41d32c.pkg.js/dist/js/64-ba41d32c.pkg.js https://dtu.dk/dist/js/64-ba41d32c.pkg.js — 200 — 551 B — 56 ms — h2https://dtu.dk/dist/js/34-86f81ee6.pkg.js/dist/js/34-86f81ee6.pkg.js https://dtu.dk/dist/js/34-86f81ee6.pkg.js — 200 — 655 B — 53 ms — h2https://dtu.dk/-/media/dtu_generelt/standard_grafik/baggrundsgrafik-1920x1080/1920x1920_web_dturoed.png?cx=0.47&cy=0.47&cw=1920&ch=1080&hash=AC679E4001EAF1B852FEA3655E4A6BDA/-/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=1920&ch=1080&hash=AC679E4001EAF1B852FEA3655E4A6BDA — 200 — 37.8 KiB — 75 ms — h2https://dtu.dk/api/v1/navigation/megamenu/api/v1/navigation/megamenu https://dtu.dk/api/v1/navigation/megamenu — 200 — 908 B — 38 ms — h2https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=AW-16759074303&cx=c&gtm=4e64k0 — 200 — 145.4 KiB — 61 ms — h2https://www.googletagmanager.com/gtag/js?id=DC-13694846&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=DC-13694846&cx=c&gtm=4e64k0 — 200 — 129.9 KiB — 55 ms — h2https://www.googletagmanager.com/gtag/js?id=DC-15979278&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=DC-15979278&cx=c&gtm=4e64k0 — 200 — 129.3 KiB — 71 ms — h2https://www.googletagmanager.com/gtag/js?id=AW-11476363041&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=AW-11476363041&cx=c&gtm=4e64k0 — 200 — 145.4 KiB — 78 ms — h2https://cdn.cookie-script.com/s/be1efe1aad9fbaeb5a003be3d5204ae9.jscdn.cookie-script.com/s/be1efe1aad9... https://cdn.cookie-script.com/s/be1efe1aad9fbaeb5a003be3d5204ae9.js — 200 — 31.2 KiB — 129 ms — h2https://www.google.com/ccm/collect?rcb=0&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64k0v830986934za200zd830986934xea&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938468~117266400&apve=1&apvf=f&apvc=1&tft=1776890065678&tfd=679www.google.com/ccm/collect?rcb=0&fr... https://www.google.com/ccm/collect?rcb=0&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64k0v830986934za200zd830986934xea&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938468~117266400&apve=1&apvf=f&apvc=1&tft=1776890065678&tfd=679 — 200 — 21 B — 82 ms — h3https://www.google.com/ccm/collect?rcb=14&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&gtm=45fe64k0v9181782880z8830986934za20gzb830986934zd830986934xec&gcd=13l3lPl2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266401~118128923&apve=1&apvf=f&apvc=0&tids=DC-13694846&tid=DC-13694846&tft=1776890065762&tfd=763www.google.com/ccm/collect?rcb=14&f... https://www.google.com/ccm/collect?rcb=14&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&gtm=45fe64k0v9181782880z8830986934za20gzb830986934zd830986934xec&gcd=13l3lPl2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266401~118128923&apve=1&apvf=f&apvc=0&tids=DC-13694846&tid=DC-13694846&tft=1776890065762&tfd=763 — 200 — 21 B — 53 ms — h3https://www.google.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&gtm=45be64k0v9234718011z8830986934za20gzb830986934zd830986934xec&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266401~118463262&apve=1&apvf=f&apvc=0&tids=AW-16759074303&tid=AW-16759074303&tft=1776890065814&tfd=815www.google.com/ccm/collect?rcb=13&f... https://www.google.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&dt=Danmarks%20Tekniske%20Universitet%20-%20DTU&auid=1181815833.1776890066&navt=n&npa=1&gtm=45be64k0v9234718011z8830986934za20gzb830986934zd830986934xec&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266401~118463262&apve=1&apvf=f&apvc=0&tids=AW-16759074303&tid=AW-16759074303&tft=1776890065814&tfd=815 — 200 — 21 B — 55 ms — h3https://pagead2.googlesyndication.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&navt=n&npa=1&gtm=45fe64k0v9234098841z8830986934za20gzb830986934zd830986934xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266401&apve=1&apvf=f&apvc=0&tids=DC-15979278&tid=DC-15979278&tft=1776890065867&tfd=868pagead2.googlesyndication.com/ccm/c... https://pagead2.googlesyndication.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&navt=n&npa=1&gtm=45fe64k0v9234098841z8830986934za20gzb830986934zd830986934xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266401&apve=1&apvf=f&apvc=0&tids=DC-15979278&tid=DC-15979278&tft=1776890065867&tfd=868 — 200 — 21 B — 99 ms — h3https://pagead2.googlesyndication.com/ccm/collect?rcb=6&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&navt=n&npa=1&gtm=45be64k0v9234708392z8830986934za20gzb830986934zd830986934xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938468~117266400~118128923&apve=1&apvf=f&apvc=0&tids=AW-11476363041&tid=AW-11476363041&tft=1776890065915&tfd=916pagead2.googlesyndication.com/ccm/c... https://pagead2.googlesyndication.com/ccm/collect?rcb=6&frm=0&en=page_view&dl=https%3A%2F%2Fdtu.dk%2F&scrsrc=www.googletagmanager.com&rnd=934494386.1776890066&navt=n&npa=1&gtm=45be64k0v9234708392z8830986934za20gzb830986934zd830986934xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938468~117266400~118128923&apve=1&apvf=f&apvc=0&tids=AW-11476363041&tid=AW-11476363041&tft=1776890065915&tfd=916 — 200 — 21 B — 50 ms — h3https://consent.cookie-script.com/analytics?action=firstshown&time=1776890066052&script=be1efe1aad9fbaeb5a003be3d5204ae9&category=consent.cookie-script.com/analytics... https://consent.cookie-script.com/analytics?action=firstshown&time=1776890066052&script=be1efe1aad9fbaeb5a003be3d5204ae9&category= — 200 — 293 B — 471 ms — h2https://www.googletagmanager.com/a?v=3&t=l&pid=1512492620&rv=64k0&tag_exp=0~115938466~115938469~117266401&u=AAAAAIAIAAAAAAAAAAAAAAAY&ut=Ag&h=Ag&gtm=45fe64k0v9234098841za20gzb830986934zd830986934&cl=3.3.0&ccid=234098841&cid=DC-15979278&l=L375.S24.B17.E230.I468.TC4.HTC0.F468.C4~gtm.init_consent.S2.V2.E19~gtm.init.S0.V0.E17.TS5ogt1pdatav2.TI4.TE1.TS5ccdflfirst.TI7.TE0.TS5ccdfllast.TI6.TE0~gtm.js.S0.V0.E11.TS5rep.TI1.TE6~gtm.dom.S0.V0.E4~gtm.load.S0.V0.E30www.googletagmanager.com/a?v=3&t=l&... https://www.googletagmanager.com/a?v=3&t=l&pid=1512492620&rv=64k0&tag_exp=0~115938466~115938469~117266401&u=AAAAAIAIAAAAAAAAAAAAAAAY&ut=Ag&h=Ag&gtm=45fe64k0v9234098841za20gzb830986934zd830986934&cl=3.3.0&ccid=234098841&cid=DC-15979278&l=L375.S24.B17.E230.I468.TC4.HTC0.F468.C4~gtm.init_consent.S2.V2.E19~gtm.init.S0.V0.E17.TS5ogt1pdatav2.TI4.TE1.TS5ccdflfirst.TI7.TE0.TS5ccdfllast.TI6.TE0~gtm.js.S0.V0.E11.TS5rep.TI1.TE6~gtm.dom.S0.V0.E4~gtm.load.S0.V0.E30 — 200 — 11 B — 25 ms — h3https://dtu.dk/favicon.ico/favicon.ico https://dtu.dk/favicon.ico — 200 — 1.3 KiB — 39 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
75% of JavaScript execution is third-party
First-party Third-party 385ms · 343KB · kr30/mo
Unattributable
Other
Optional
Execution 156ms
Transfer 0 KB
Monthly Cost kr12/mo
Google Tag Manager
Tag Manager
Optional
Execution 119ms
Transfer 166 KB
Unused 34%
Monthly Cost kr9/mo
Cookie Script
Consent
Essential
Execution 58ms
Transfer 31 KB
Monthly Cost kr5/mo
Google Tag Manager
Tag Manager
Optional
Execution 51ms
Transfer 145 KB
Unused 42%
Monthly Cost kr4/mo

75% 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

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback