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https://uib.no

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
77
GRADE
C
FIX
4
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
80
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.
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.

1.61 s

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

2.26 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.

0.065

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

1.74 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.

2.28 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
15
6 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
13.6 MB transferred, 44 requests
FIX
13.6 MB transferred, 44 requests
Critical::
Page weighs 14.7 MB (13.6 MB transferred)
Warning::
Images are 13.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 13.1 MB
Info::
44 HTTP requests
Info::
Estimated 2.9 g CO2 per page load
13.6 MB / 2.4 MB budget
13.6 MB transferred
44 requests
2.9 g CO2 per page load
Images 13.1 MiB 96%
JavaScript 266.0 KiB 2%
Fonts 185.2 KiB 1%
CSS 79.9 KiB 1%
HTML 11.9 KiB 0%
Other 1.5 KiB 0%
Other 135 B 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

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 (13.6 MiB of 13.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
44 resources · 13.6 MB · 91 KB savings available
FIX
44 resources · 13.6 MB · 91 KB savings available
Warning::
Page weight 12.6 MB over 1MB target
Got: 13.6 MB Expected: ≤ 1 MB
Info::
~91 KB of savings available
Warning::
43 third-party resources (100% of weight)
Info::
2 resources over 200KB
44 resources · 13.6 MiB · 43 third-party 12.6 MiB over 1MB target
Image 96% · 13.1 MiB
JavaScript 2% · 266.0 KiB
Font 1% · 185.2 KiB
CSS 1% · 79.9 KiB
Document 0% · 12.3 KiB
Other 0% · 135 B

~90.8 KiB of savings available

Remove unused JavaScript: 90.8 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Warning::
https://www4.uib.no/themes/custom/uib/public/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
21 images 13.1 MB
0 oversized -0 KB
5 legacy format
1 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

B
JS Bundles
9 scripts, 91 KB unused
REVIEW
9 scripts, 91 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-N5R...: 67 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www4.uib.no/core/assets/vendor/jquery/jque...: 24 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 91 KB
91 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-N5RS2Z4G141 KB67 KB (48%)✓3rd
https://www4.uib.no/core/assets/vendor/jquery/jquery.min.js?v=4.0.032 KB24 KB (76%)✓3rd
https://www4.uib.no/sites/default/assets/js/js_VTo7S-ds6TQf0B7v7FnYTQsKE84bAVZHSmARDBhOMX4.js?scope=header&delta=0&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZw1 KB—✓3rd
https://www4.uib.no/themes/custom/uib/dist/assets/index.js?tdot4a20 KB—✓3rd
https://www4.uib.no/sites/default/assets/js/js_lFIyf4TEMGa3fEqXzWTJlcOGpvfVBqcYB36J-1K1D7Q.js?scope=footer&delta=1&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZw22 KB—✓3rd
https://www4.uib.no/libraries/klaro/dist/klaro-no-translations-no-css.js?tdot4a24 KB—✓3rd
https://stats.app.uib.no/matomo.js25 KB—✓3rd
https://www4.uib.no/modules/contrib/google_tag/js/gtag.js?tdot4a1 KB—✓3rd
https://www4.uib.no/modules/contrib/google_tag/js/gtm.js?tdot4a1 KB—✓3rd

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

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+
JS Execution Cost
182ms total JS execution
PASS
182ms total JS execution
Info::
Unattributable: 101ms CPU time
Info::
https://www4.uib.no/: 81ms CPU time
Warning::
Third-party scripts: 182ms (100% of total)

Main Thread Breakdown

Other 38% Script Evaluation 27% Style & Layout 17% Rendering 7% Parse HTML & CSS 5% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
Unattributable101ms3ms0ms3rd
https://www4.uib.no/81ms2ms0ms3rd
A+
Font Loading
2 fonts (185 KB)
PASS
2 fonts (185 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

185 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 1.5 s 2.0 s FCP 1.6 s LCP 2.3 shttps://www4.uib.no/themes/custom/uib/dist/assets/MyriadPro-Regular.otfMyriadPro-Regular.otf https://www4.uib.no/themes/custom/uib/dist/assets/MyriadPro-Regular.otf — 92.1 KiB — 752 ms — font-display: swaphttps://www4.uib.no/themes/custom/uib/dist/assets/MyriadPro-Semibold.otfMyriadPro-Semibold.otf https://www4.uib.no/themes/custom/uib/dist/assets/MyriadPro-Semibold.otf — 93.2 KiB — 800 ms — font-display: swap
MyriadPro-Regular.otf otf swap
Size 92 KB
Load time 752 ms
Start 722 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
MyriadPro-Semibold.otf otf swap
Size 93 KB
Load time 800 ms
Start 723 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 ~56 KB and ~112 ms

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
44 requests over 2170ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.6 s LCP 2.3 shttps://uib.no// https://uib.no/ — 302 — 187 B — 152 ms — http/1.1https://www.uib.no/www.uib.no/ https://www.uib.no/ — 302 — 100 B — 155 ms — h2https://www4.uib.no/www4.uib.no/ https://www4.uib.no/ — 200 — 11.9 KiB — 205 ms — h2https://www4.uib.no/sites/default/assets/css/css_RohlsASUQXDN6sXSy8EbgWBZOfeLoPnwiFDsX-7E1Ro.css?delta=0&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRYwww4.uib.no/sites/default/assets/cs... https://www4.uib.no/sites/default/assets/css/css_RohlsASUQXDN6sXSy8EbgWBZOfeLoPnwiFDsX-7E1Ro.css?delta=0&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRY — 200 — 8.2 KiB — 53 ms — h2https://www4.uib.no/sites/default/assets/css/css_GZaOJ0v1bPjyCA9ugjpBLbPTAsy4tiK0sz6PND2kzlU.css?delta=1&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRYwww4.uib.no/sites/default/assets/cs... https://www4.uib.no/sites/default/assets/css/css_GZaOJ0v1bPjyCA9ugjpBLbPTAsy4tiK0sz6PND2kzlU.css?delta=1&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRY — 200 — 71.7 KiB — 155 ms — h2https://www4.uib.no/sites/default/assets/js/js_VTo7S-ds6TQf0B7v7FnYTQsKE84bAVZHSmARDBhOMX4.js?scope=header&delta=0&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZwwww4.uib.no/sites/default/assets/js... https://www4.uib.no/sites/default/assets/js/js_VTo7S-ds6TQf0B7v7FnYTQsKE84bAVZHSmARDBhOMX4.js?scope=header&delta=0&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZw — 200 — 672 B — 154 ms — h2https://www4.uib.no/themes/custom/uib/public/image/logo-uib-dark.svgwww4.uib.no/themes/custom/uib/publi... https://www4.uib.no/themes/custom/uib/public/image/logo-uib-dark.svg — 200 — 31.2 KiB — 252 ms — h2https://www4.uib.no/themes/custom/uib/public/image/logo-uib-light.svgwww4.uib.no/themes/custom/uib/publi... https://www4.uib.no/themes/custom/uib/public/image/logo-uib-light.svg — 200 — 19.8 KiB — 302 ms — h2https://www4.uib.no/themes/custom/uib/dist/assets/index.js?tdot4awww4.uib.no/themes/custom/uib/dist/... https://www4.uib.no/themes/custom/uib/dist/assets/index.js?tdot4a — 200 — 20.1 KiB — 203 ms — h2https://www4.uib.no/themes/custom/uib/public/image/emblem-uib-light.svgwww4.uib.no/themes/custom/uib/publi... https://www4.uib.no/themes/custom/uib/public/image/emblem-uib-light.svg — 200 — 14.3 KiB — 188 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-04/DSC02473.JPG.avif?itok=l9Bm7PLRwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-04/DSC02473.JPG.avif?itok=l9Bm7PLR — 200 — 8.4 KiB — 237 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-04/BETTIDSC02534_0.JPG.avif?itok=Ea9pu3QXwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-04/BETTIDSC02534_0.JPG.avif?itok=Ea9pu3QX — 200 — 13.4 KiB — 286 ms — h2https://www4.uib.no/core/assets/vendor/jquery/jquery.min.js?v=4.0.0www4.uib.no/core/assets/vendor/jque... https://www4.uib.no/core/assets/vendor/jquery/jquery.min.js?v=4.0.0 — 200 — 31.7 KiB — 339 ms — h2https://www4.uib.no/sites/default/assets/js/js_lFIyf4TEMGa3fEqXzWTJlcOGpvfVBqcYB36J-1K1D7Q.js?scope=footer&delta=1&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZwwww4.uib.no/sites/default/assets/js... https://www4.uib.no/sites/default/assets/js/js_lFIyf4TEMGa3fEqXzWTJlcOGpvfVBqcYB36J-1K1D7Q.js?scope=footer&delta=1&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZw — 200 — 21.6 KiB — 389 ms — h2https://www4.uib.no/libraries/klaro/dist/klaro-no-translations-no-css.js?tdot4awww4.uib.no/libraries/klaro/dist/kl... https://www4.uib.no/libraries/klaro/dist/klaro-no-translations-no-css.js?tdot4a — 200 — 23.8 KiB — 437 ms — h2https://www.uib.no/sites/w3.uib.no/files/media/colourbox41319038.jpgwww.uib.no/sites/w3.uib.no/files/me... https://www.uib.no/sites/w3.uib.no/files/media/colourbox41319038.jpg — 200 — 9.6 MiB — 854 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-04/masterutstillingene%20i%20kunst.png.avif?itok=fc-vfmcYwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-04/masterutstillingene%20i%20kunst.png.avif?itok=fc-vfmcY — 200 — 5.2 KiB — 486 ms — h2https://www.uib.no/sites/w3.uib.no/files/media/oow_ankomst-utvalg06.jpgwww.uib.no/sites/w3.uib.no/files/me... https://www.uib.no/sites/w3.uib.no/files/media/oow_ankomst-utvalg06.jpg — 200 — 2.9 MiB — 507 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-04/Kollage.jpg.avif?itok=1kVZxgSewww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-04/Kollage.jpg.avif?itok=1kVZxgSe — 200 — 7.9 KiB — 535 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-04/bilete.jpeg.avif?itok=pasfllnpwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-04/bilete.jpeg.avif?itok=pasfllnp — 200 — 29.9 KiB — 584 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-03/MHO_3741.jpg.avif?itok=dALGLuHhwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-03/MHO_3741.jpg.avif?itok=dALGLuHh — 200 — 9.0 KiB — 634 ms — h2https://www4.uib.no/sites/default/files/styles/large/public/2026-03/d430796b-e0b7-4d09-b4a0-2abfc0c9faea-w_960_h_960.jpg.avif?itok=Nr7nokNmwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/large/public/2026-03/d430796b-e0b7-4d09-b4a0-2abfc0c9faea-w_960_h_960.jpg.avif?itok=Nr7nokNm — 200 — 22.6 KiB — 684 ms — h2https://stats.app.uib.no/matomo.jsstats.app.uib.no/matomo.js https://stats.app.uib.no/matomo.js — 200 — 25.3 KiB — 84 ms — h2data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg fill='%23000000' height='24' viewBox='0 0 24 24' width='24'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg fill='%23000000' height='24' viewBox='0 0 24 24' width='24'… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'…data:image/svg+xml;charset=utf-8,%3... data:image/svg+xml;charset=utf-8,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='%23000000'… — 200 — 0 B — 0 ms — datahttps://www4.uib.no/sites/default/files/styles/wide/public/2026-03/student__2.png.avif?itok=LF6-OoLWwww4.uib.no/sites/default/files/sty... https://www4.uib.no/sites/default/files/styles/wide/public/2026-03/student__2.png.avif?itok=LF6-OoLW — 200 — 20.3 KiB — 703 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.6 s LCP 2.3 shttps://uib.no// https://uib.no/ — 302 — 187 B — 152 ms — http/1.1https://www.uib.no/www.uib.no/ https://www.uib.no/ — 302 — 100 B — 155 ms — h2https://www4.uib.no/www4.uib.no/ https://www4.uib.no/ — 200 — 11.9 KiB — 205 ms — h2https://www4.uib.no/sites/default/assets/css/css_RohlsASUQXDN6sXSy8EbgWBZOfeLoPnwiFDsX-7E1Ro.css?delta=0&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRYwww4.uib.no/sites/default/assets/cs... https://www4.uib.no/sites/default/assets/css/css_RohlsASUQXDN6sXSy8EbgWBZOfeLoPnwiFDsX-7E1Ro.css?delta=0&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRY — 200 — 8.2 KiB — 53 ms — h2https://www4.uib.no/sites/default/assets/css/css_GZaOJ0v1bPjyCA9ugjpBLbPTAsy4tiK0sz6PND2kzlU.css?delta=1&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRYwww4.uib.no/sites/default/assets/cs... https://www4.uib.no/sites/default/assets/css/css_GZaOJ0v1bPjyCA9ugjpBLbPTAsy4tiK0sz6PND2kzlU.css?delta=1&language=nb&theme=uib&include=eJxVjFEOAiEMRC-E9kikQIPVlm4KGLm92fVj15_Jy5vMZHOC4nNDueMTP-El6AZHXvlmb3LnQkFw2RyxcM-7W2CNsknoqw9SSNgpTE5QxRLKjjGbqrU4GcaDlFs97O_9avqYZcXNrTrqX3NOv-NMRRY — 200 — 71.7 KiB — 155 ms — h2https://www4.uib.no/sites/default/assets/js/js_VTo7S-ds6TQf0B7v7FnYTQsKE84bAVZHSmARDBhOMX4.js?scope=header&delta=0&language=nb&theme=uib&include=eJxLz89Pz0mNL0lM108HEjrpqHy9xKzEClTBXJ3snMSifH0wqZObWJKfm68PoXRKM5P003PykxJzANtYIZwwww4.uib.no/sites/default/assets/js... 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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
100% of JavaScript execution is third-party
First-party Third-party 182ms · 12KB · kr22/mo
Unattributable
Other
Optional
Execution 101ms
Transfer 0 KB
Monthly Cost kr13/mo
www4.uib.no
Other
Optional
Execution 81ms
Transfer 12 KB
Monthly Cost kr10/mo

100% 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.

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