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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
89
GRADE
B
FIX
1
REVIEW
5
PASS
7
INFO
2

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

Mobile Desktop
99
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.

505 ms

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

975 ms

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

16 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.

894 ms

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

976 ms

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
7 PASS 5 REVIEW 1 FIX
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 (1.2 MiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
B
Page Weight Budget
1.2 MB transferred, 33 requests
REVIEW
1.2 MB transferred, 33 requests
Info::
Page weighs 2.2 MB (1.2 MB transferred)
Info::
33 HTTP requests
Info::
Estimated 0.26 g CO2 per page load
1.2 MB / 2.4 MB budget
1.2 MB transferred
33 requests
0.26 g CO2 per page load
Images 919.8 KiB 72%
Fonts 152.4 KiB 12%
JavaScript 143.5 KiB 11%
HTML 34.1 KiB 3%
CSS 25.3 KiB 2%
Other 1.9 KiB 0%
Other 547 B 0%
0 2.4 MB 4.9 MB
Under budget
B
Image Optimization
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Info::
All images are well-optimized
9 images 920 KB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
C
Page Weight Inventory
Action
33 resources · 1.2 MB · 40 KB savings available
REVIEW
33 resources · 1.2 MB · 40 KB savings available
Warning::
Page weight 253 KB over 1MB target
Got: 1.2 MB Expected: ≤ 1 MB
Warning::
32 third-party resources (100% of weight)
Info::
1 resources over 200KB
33 resources · 1.2 MiB · 32 third-party 253.5 KiB over 1MB target
Image 72% · 921.4 KiB
Font 12% · 152.4 KiB
JavaScript 11% · 143.5 KiB
Document 3% · 34.4 KiB
CSS 2% · 25.3 KiB
Other 0% · 547 B

~40.3 KiB of savings available

Remove unused JavaScript: 40.3 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
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
376ms total JS execution
PASS
376ms total JS execution
Info::
https://www.univie.ac.at/: 157ms CPU time
Info::
https://www.univie.ac.at/typo3temp/assets/compress...: 134ms CPU time
Info::
Unattributable: 85ms CPU time
Warning::
Third-party scripts: 376ms (100% of total)

Main Thread Breakdown

Script Evaluation 33% Other 28% Style & Layout 20% Parse HTML & CSS 9% Script Parsing & Compilation 6% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.univie.ac.at/157ms5ms0ms3rd
https://www.univie.ac.at/typo3temp/assets/compressed/main-e4e951d7d2f137e3c4eb47dc29a9fde1.js?1776416437134ms101ms0ms3rd
Unattributable85ms2ms0ms3rd
A+
Font Loading
7 fonts (152 KB)
PASS
7 fonts (152 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

152 KB total

Render-blocking

0

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 505 ms LCP 975 mshttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2inter-v18-latin-regular... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2 — 23.4 KiB — 48 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2inter-v18-latin-italic.... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2 — 24.7 KiB — 72 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2inter-v18-latin-600.woff2 https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2 — 24.1 KiB — 73 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2inter-v18-latin-600ital... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2 — 25.6 KiB — 60 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2source-serif-4-v8-latin... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2 — 19.9 KiB — 68 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2source-serif-4-v8-latin... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2 — 20.0 KiB — 60 ms — font-display: swaphttps://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2icons.woff2 https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2 — 14.7 KiB — 73 ms — font-display: swap
inter-v18-latin-regular... woff2 swap
Size 23 KB
Load time 48 ms
Start 215 ms
Risk FOUT — text flashes from fallback to web font
inter-v18-latin-italic.... woff2 swap
Size 25 KB
Load time 72 ms
Start 216 ms
Risk FOUT — text flashes from fallback to web font
inter-v18-latin-600.woff2 woff2 swap
Size 24 KB
Load time 73 ms
Start 217 ms
Risk FOUT — text flashes from fallback to web font
inter-v18-latin-600ital... woff2 swap
Size 26 KB
Load time 60 ms
Start 217 ms
Risk FOUT — text flashes from fallback to web font
source-serif-4-v8-latin... woff2 swap
Size 20 KB
Load time 68 ms
Start 218 ms
Risk FOUT — text flashes from fallback to web font
source-serif-4-v8-latin... woff2 swap
Size 20 KB
Load time 60 ms
Start 218 ms
Risk FOUT — text flashes from fallback to web font
icons.woff2 woff2 swap
Size 15 KB
Load time 73 ms
Start 219 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+
JS Bundles
11 scripts, 40 KB unused
PASS
11 scripts, 40 KB unused
Warning::
https://www.univie.ac.at/_assets/2076be5e7c25c5348...: 40 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 40 KB
40 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/leaflet.min.js?177633364848 KB40 KB (83%)✓3rd
https://www.univie.ac.at/typo3temp/assets/compressed/merged-6ac95fefb81a42397b404b9d19266665-f3875072ca2d93c26d803fb7532c09fb.js?17764164371 KB—✓3rd
https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/JavaScript/libs/splide.min.js?177633364413 KB—✓3rd
https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/OpenStreetMap2.min.js?17763336483 KB—✓3rd
https://www.univie.ac.at/typo3temp/assets/compressed/manifest-e953c744e23f4e0bd5550d0514b93058.js?17764164371 KB—✓3rd
https://www.univie.ac.at/typo3temp/assets/compressed/vendor-47339f445dd7e983894c54641db10bad.js?177641643721 KB—✓3rd
https://www.univie.ac.at/typo3temp/assets/compressed/main-e4e951d7d2f137e3c4eb47dc29a9fde1.js?17764164371 KB—✓3rd
https://www.univie.ac.at/typo3temp/assets/compressed/iframemanager-b4181be083422a4f9e614b971d3c635e.js?17764164377 KB—✗3rd
https://www.univie.ac.at/typo3temp/assets/compressed/consent-f1a2edcb8142d5607a969af4a8018c04.js?177641643720 KB—✗3rd
https://www.univie.ac.at/typo3temp/assets/compressed/Form.min-1ba5162e9be9175c849626b3f2eb16b2.js?177641643724 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

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
33 requests over 743ms
INFO
0 ms 500 ms 1.0 s FCP 505 ms LCP 975 mshttps://univie.ac.at// https://univie.ac.at/ — 301 — 279 B — 81 ms — h2https://www.univie.ac.at/www.univie.ac.at/ https://www.univie.ac.at/ — 200 — 34.1 KiB — 114 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Css/libs/splide-core.min.css?1776333644www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Css/libs/splide-core.min.css?1776333644 — 200 — 878 B — 25 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/merged-508f6b06a9f2e08355e8ebb9655ba3f2-2ccb56b46a8064de9a1be45f877ee2f7.css?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/merged-508f6b06a9f2e08355e8ebb9655ba3f2-2ccb56b46a8064de9a1be45f877ee2f7.css?1776416437 — 200 — 24.4 KiB — 43 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/merged-6ac95fefb81a42397b404b9d19266665-f3875072ca2d93c26d803fb7532c09fb.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/merged-6ac95fefb81a42397b404b9d19266665-f3875072ca2d93c26d803fb7532c09fb.js?1776416437 — 200 — 829 B — 29 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/JavaScript/libs/splide.min.js?1776333644www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/JavaScript/libs/splide.min.js?1776333644 — 200 — 12.6 KiB — 66 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2 — 200 — 23.4 KiB — 48 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2 — 200 — 24.7 KiB — 72 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2 — 200 — 24.1 KiB — 73 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2 — 200 — 25.6 KiB — 60 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2 — 200 — 19.9 KiB — 68 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2 — 200 — 20.0 KiB — 60 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2 — 200 — 14.7 KiB — 73 ms — h2https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/OpenStreetMap2.min.js?1776333648www.univie.ac.at/_assets/2076be5e7c... https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/OpenStreetMap2.min.js?1776333648 — 200 — 2.7 KiB — 75 ms — h2https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/leaflet.min.js?1776333648www.univie.ac.at/_assets/2076be5e7c... https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/leaflet.min.js?1776333648 — 200 — 48.5 KiB — 61 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/manifest-e953c744e23f4e0bd5550d0514b93058.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/manifest-e953c744e23f4e0bd5550d0514b93058.js?1776416437 — 200 — 749 B — 25 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/vendor-47339f445dd7e983894c54641db10bad.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/vendor-47339f445dd7e983894c54641db10bad.js?1776416437 — 200 — 20.5 KiB — 28 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/main-e4e951d7d2f137e3c4eb47dc29a9fde1.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/main-e4e951d7d2f137e3c4eb47dc29a9fde1.js?1776416437 — 200 — 816 B — 22 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/iframemanager-b4181be083422a4f9e614b971d3c635e.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/iframemanager-b4181be083422a4f9e614b971d3c635e.js?1776416437 — 200 — 7.2 KiB — 28 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/consent-f1a2edcb8142d5607a969af4a8018c04.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/consent-f1a2edcb8142d5607a969af4a8018c04.js?1776416437 — 200 — 19.9 KiB — 37 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/site.webmanifestwww.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/site.webmanifest — 200 — 547 B — 85 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Images/Logos/univie.svgwww.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Images/Logos/univie.svg — 200 — 23.9 KiB — 41 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/Form.min-1ba5162e9be9175c849626b3f2eb16b2.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/Form.min-1ba5162e9be9175c849626b3f2eb16b2.js?1776416437 — 200 — 24.1 KiB — 35 ms — h2https://www.univie.ac.at/typo3temp/assets/cookieconfig06ada6b9f0c9ad8076c9fed4d76cd4283.js?1776756190www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/cookieconfig06ada6b9f0c9ad8076c9fed4d76cd4283.js?1776756190 — 200 — 5.7 KiB — 32 ms — h2https://www.univie.ac.at/fileadmin/_processed_/a/e/csm_Uni-Wien-Top-100-Ranking-Hauptgebauede-DE-orig_b54f1ef5fb.webpwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/a/e/csm_Uni-Wien-Top-100-Ranking-Hauptgebauede-DE-orig_b54f1ef5fb.webp — 200 — 160.5 KiB — 99 ms — h2https://www.univie.ac.at/fileadmin/_processed_/4/3/csm_20250425_HG_Hoersaal_33_C_Ian_Ehm_16_2_59b5dc0bb3.jpgwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/4/3/csm_20250425_HG_Hoersaal_33_C_Ian_Ehm_16_2_59b5dc0bb3.jpg — 200 — 73.0 KiB — 38 ms — h2https://www.univie.ac.at/fileadmin/_processed_/d/f/csm_20260305_LNF_3200x1081_Highlight_Banner_4e01c576d6.pngwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/d/f/csm_20260305_LNF_3200x1081_Highlight_Banner_4e01c576d6.png — 200 — 375.3 KiB — 127 ms — h2https://www.univie.ac.at/fileadmin/_processed_/2/e/csm_HG_20250609_HG_Arkadenhof_bw_C_Ian_Ehm_05_d1338201a1.jpgwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/2/e/csm_HG_20250609_HG_Arkadenhof_bw_C_Ian_Ehm_05_d1338201a1.jpg — 200 — 66.5 KiB — 61 ms — h2https://www.univie.ac.at/fileadmin/_processed_/3/a/csm_20250425_HG_Hoersaal_33_C_Ian_Ehm_343_0711c74aca.webpwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/3/a/csm_20250425_HG_Hoersaal_33_C_Ian_Ehm_343_0711c74aca.webp — 200 — 15.5 KiB — 53 ms — h2https://www.univie.ac.at/fileadmin/_processed_/e/5/csm_20250220_Boltzmanngasse_Physik_Labor_Aspelmeyer_C_Ian_Ehm60672_bw-v2_e1f1503106.webpwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/e/5/csm_20250220_Boltzmanngasse_Physik_Labor_Aspelmeyer_C_Ian_Ehm60672_bw-v2_e1f1503106.webp — 200 — 32.2 KiB — 56 ms — h2
0 ms 500 ms 1.0 s FCP 505 ms LCP 975 mshttps://univie.ac.at// https://univie.ac.at/ — 301 — 279 B — 81 ms — h2https://www.univie.ac.at/www.univie.ac.at/ https://www.univie.ac.at/ — 200 — 34.1 KiB — 114 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Css/libs/splide-core.min.css?1776333644www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Css/libs/splide-core.min.css?1776333644 — 200 — 878 B — 25 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/merged-508f6b06a9f2e08355e8ebb9655ba3f2-2ccb56b46a8064de9a1be45f877ee2f7.css?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/merged-508f6b06a9f2e08355e8ebb9655ba3f2-2ccb56b46a8064de9a1be45f877ee2f7.css?1776416437 — 200 — 24.4 KiB — 43 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/merged-6ac95fefb81a42397b404b9d19266665-f3875072ca2d93c26d803fb7532c09fb.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/merged-6ac95fefb81a42397b404b9d19266665-f3875072ca2d93c26d803fb7532c09fb.js?1776416437 — 200 — 829 B — 29 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/JavaScript/libs/splide.min.js?1776333644www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/JavaScript/libs/splide.min.js?1776333644 — 200 — 12.6 KiB — 66 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-regular.woff2 — 200 — 23.4 KiB — 48 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-italic.woff2 — 200 — 24.7 KiB — 72 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600.woff2 — 200 — 24.1 KiB — 73 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Inter/inter-v18-latin-600italic.woff2 — 200 — 25.6 KiB — 60 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-regular.woff2 — 200 — 19.9 KiB — 68 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/SourceSerif4/source-serif-4-v8-latin-italic.woff2 — 200 — 20.0 KiB — 60 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2www.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Fonts/Icons/icons.woff2 — 200 — 14.7 KiB — 73 ms — h2https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/OpenStreetMap2.min.js?1776333648www.univie.ac.at/_assets/2076be5e7c... https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/OpenStreetMap2.min.js?1776333648 — 200 — 2.7 KiB — 75 ms — h2https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/leaflet.min.js?1776333648www.univie.ac.at/_assets/2076be5e7c... https://www.univie.ac.at/_assets/2076be5e7c25c5348e8257623059b612/JavaScript/leaflet.min.js?1776333648 — 200 — 48.5 KiB — 61 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/manifest-e953c744e23f4e0bd5550d0514b93058.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/manifest-e953c744e23f4e0bd5550d0514b93058.js?1776416437 — 200 — 749 B — 25 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/vendor-47339f445dd7e983894c54641db10bad.js?1776416437www.univie.ac.at/typo3temp/assets/c... 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h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/site.webmanifestwww.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/site.webmanifest — 200 — 547 B — 85 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Images/Logos/univie.svgwww.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Images/Logos/univie.svg — 200 — 23.9 KiB — 41 ms — h2https://www.univie.ac.at/typo3temp/assets/compressed/Form.min-1ba5162e9be9175c849626b3f2eb16b2.js?1776416437www.univie.ac.at/typo3temp/assets/c... https://www.univie.ac.at/typo3temp/assets/compressed/Form.min-1ba5162e9be9175c849626b3f2eb16b2.js?1776416437 — 200 — 24.1 KiB — 35 ms — h2https://www.univie.ac.at/typo3temp/assets/cookieconfig06ada6b9f0c9ad8076c9fed4d76cd4283.js?1776756190www.univie.ac.at/typo3temp/assets/c... 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h2https://www.univie.ac.at/fileadmin/_processed_/7/d/csm_20250228_HG_Bibliothek_Germanistik_C_Ian_Ehm_sw_6_1920_14b9dbcd4e.webpwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/7/d/csm_20250228_HG_Bibliothek_Germanistik_C_Ian_Ehm_sw_6_1920_14b9dbcd4e.webp — 200 — 92.1 KiB — 31 ms — h2https://www.univie.ac.at/fileadmin/_processed_/d/6/csm_Together_we_grow.___Universitaet_Wien_d358e9ed69.webpwww.univie.ac.at/fileadmin/_process... https://www.univie.ac.at/fileadmin/_processed_/d/6/csm_Together_we_grow.___Universitaet_Wien_d358e9ed69.webp — 200 — 80.8 KiB — 43 ms — h2https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/favicon-32x32.pngwww.univie.ac.at/_assets/12d6b27de3... https://www.univie.ac.at/_assets/12d6b27de3745b4c3b247e6ea4f9bbcc/Icons/Favicons/favicon-32x32.png — 200 — 1.6 KiB — 24 ms — h2
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 376ms · 35KB · €4/mo
www.univie.ac.at
Other
Optional
Execution 157ms
Transfer 34 KB
Monthly Cost €2/mo
www.univie.ac.at
Other
Optional
Execution 134ms
Transfer 1 KB
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 85ms
Transfer 0 KB
Monthly Cost €1/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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