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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
65
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

1.78 s

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

4.40 s

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

12 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.

2.95 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.

4.40 s

Page Load Progression

413 ms
827 ms
1.2 s
1.7 s
2.1 s
2.5 s
2.9 s
3.3 s
Checks
15
5 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
5.3 MB transferred, 72 requests
FIX
5.3 MB transferred, 72 requests
Critical::
Page weighs 7.1 MB (5.3 MB transferred)
Warning::
Images are 4.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.3 MB
Info::
Fonts are 444 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 444 KB
Info::
72 HTTP requests
Info::
Estimated 1.1 g CO2 per page load
5.3 MB / 2.4 MB budget
5.3 MB transferred
72 requests
1.1 g CO2 per page load
Images 4.3 MiB 81%
Fonts 443.6 KiB 8%
JavaScript 424.8 KiB 8%
CSS 112.3 KiB 2%
HTML 21.2 KiB 0%
Other 1.8 KiB 0%
Other 546 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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 (5.3 MiB of 5.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
3 scripts, 231 KB unused
FIX
3 scripts, 231 KB unused
Warning::
https://www.uoa.gr/typo3temp/assets/compressed/mer...: 166 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.uoa.gr/typo3temp/assets/compressed/mer...: unminified — 53 KB could be saved
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2T5J...: 65 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 231 KB
231 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.uoa.gr/typo3temp/assets/compressed/merged-b1206ca6aa64215c514d535197b9778f-913137fc8d0cc0da4bd2fa695802f7ab.js?1776432857215 KB166 KB (77%)✗3rd
https://www.googletagmanager.com/gtag/js?id=G-2T5JM61G8W157 KB65 KB (42%)✓3rd
https://www.uoa.gr/typo3conf/ext/we_cookie_consent/Resources/Public/Library/klaro/klaro-no-css.js53 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

D
Page Weight Inventory
Action
72 resources · 5.3 MB · 231 KB savings available
FIX
72 resources · 5.3 MB · 231 KB savings available
Warning::
Page weight 4.3 MB over 1MB target
Got: 5.3 MB Expected: ≤ 1 MB
Info::
~231 KB of savings available
Warning::
71 third-party resources (100% of weight)
Info::
9 resources over 200KB
72 resources · 5.3 MiB · 71 third-party 4.3 MiB over 1MB target
Image 81% · 4.3 MiB
Font 8% · 443.6 KiB
JavaScript 8% · 424.8 KiB
CSS 2% · 112.3 KiB
Document 0% · 21.2 KiB
Other 0% · 546 B

~231.2 KiB of savings available

Remove unused JavaScript: 231.2 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.

C
Image Optimization
Action
38 images, 0 KB saveable
REVIEW
38 images, 0 KB saveable
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/research... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/ERASMUS2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/research... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/masonry6... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/civis-54... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/BAAG_259... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/masonry_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/user_upload/Banners/c... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/uoa_vide... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/medicen.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/uploads/pics/masonry5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/user_upload/PDF-files... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.uoa.gr/fileadmin/user_upload/template_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
38 images 4.3 MB
0 oversized -0 KB
38 legacy format
13 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

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

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

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

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

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

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

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

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

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

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

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

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 Execution Cost
734ms total JS execution
REVIEW
734ms total JS execution
Warning::
https://www.uoa.gr/: 303ms CPU time
Info::
https://www.uoa.gr/typo3temp/assets/compressed/mer...: 185ms CPU time
Info::
Unattributable: 146ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-2T5J...: 101ms CPU time
Warning::
Third-party scripts: 734ms (100% of total)

Main Thread Breakdown

Style & Layout 29% Script Evaluation 28% Other 25% Rendering 7% Script Parsing & Compilation 7% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.uoa.gr/303ms2ms1ms3rd
https://www.uoa.gr/typo3temp/assets/compressed/merged-b1206ca6aa64215c514d535197b9778f-913137fc8d0cc0da4bd2fa695802f7ab.js?1776432857185ms113ms33ms3rd
Unattributable146ms2ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-2T5JM61G8W101ms79ms17ms3rd
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
9 fonts (444 KB)
PASS
9 fonts (444 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

444 KB total

Render-blocking

0

of 9

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 FCP 1.8 s LCP 4.4 shttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 42.0 KiB — 19 ms — font-display: swaphttps://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/webfonts/fa-brands-400.woff2 — 114.9 KiB — 482 ms — font-display: swaphttps://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Fonts/GFSDidotBold.woffGFSDidotBold.woff https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Fonts/GFSDidotBold.woff — 72.6 KiB — 487 ms — font-display: swaphttps://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Fonts/fontawesome-webfont.woff2?v=4.5.0fontawesome-webfont.woff2 https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Fonts/fontawesome-webfont.woff2?v=4.5.0 — 65.3 KiB — 490 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 36.7 KiB — 18 ms — font-display: swaphttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTVOmu0SC55K5gw.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTVOmu0SC55K5gw.woff2 — 45.8 KiB — 20 ms — font-display: swaphttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSymu0SC55K5gw.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSymu0SC55K5gw.woff2 — 17.3 KiB — 25 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMawCUBHMdazTgWw.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMawCUBHMdazTgWw.woff2 — 35.5 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3-UBHMdazTgWw.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3-UBHMdazTgWw.woff2 — 13.7 KiB — 34 ms — font-display: swap
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 19 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
fa-brands-400.woff2 woff2 swap
Size 115 KB
Load time 482 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
GFSDidotBold.woff woff swap
Size 73 KB
Load time 487 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
fontawesome-webfont.woff2 woff2 swap
Size 65 KB
Load time 490 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 37 KB
Load time 18 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 46 KB
Load time 20 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 17 KB
Load time 25 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 35 KB
Load time 28 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 14 KB
Load time 34 ms
Start 2.5 s
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)

Fixing the unchecked items could save ~79 KB and ~158 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
72 requests over 4125ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.8 s LCP 4.4 shttps://uoa.gr// https://uoa.gr/ — 301 — 76 B — 681 ms — h2https://www.uoa.gr/www.uoa.gr/ https://www.uoa.gr/ — 200 — 21.2 KiB — 1.4 s — h2https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.csscode.jquery.com/ui/1.12.1/themes/ba... https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css — 200 — 8.5 KiB — 22 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/cookie-style.css?1765437371www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/cookie-style.css?1765437371 — 200 — 1.8 KiB — 167 ms — h2https://www.uoa.gr/typo3temp/assets/css/7015c8c4ac5ff815b57530b221005fc6.css?1773658070www.uoa.gr/typo3temp/assets/css/701... https://www.uoa.gr/typo3temp/assets/css/7015c8c4ac5ff815b57530b221005fc6.css?1773658070 — 200 — 1.1 KiB — 169 ms — h2https://fonts.googleapis.com/css?family=GFS+Didot&subset=greekfonts.googleapis.com/css?family=GFS... https://fonts.googleapis.com/css?family=GFS+Didot&subset=greek — 200 — 906 B — 24 ms — h2https://fonts.googleapis.com/css?family=Roboto:300,400,500,700,900&subset=greek,greek-extfonts.googleapis.com/css?family=Rob... https://fonts.googleapis.com/css?family=Roboto:300,400,500,700,900&subset=greek,greek-ext — 200 — 1.9 KiB — 31 ms — h2https://fonts.googleapis.com/css?family=Open+Sans:400,600,700,800&subset=greekfonts.googleapis.com/css?family=Ope... https://fonts.googleapis.com/css?family=Open+Sans:400,600,700,800&subset=greek — 200 — 1.9 KiB — 29 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/inc/jquery.fancybox.min.css?1732762558www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/inc/jquery.fancybox.min.css?1732762558 — 200 — 3.4 KiB — 169 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/bootstrap_5.min.css?1740386972www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/bootstrap_5.min.css?1740386972 — 200 — 22.6 KiB — 301 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/fonts.css?1732762556www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/fonts.css?1732762556 — 200 — 922 B — 303 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/all.min.css?1740402498www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/all.min.css?1740402498 — 200 — 21.2 KiB — 321 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/font-awesome.min.css?1732762556www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/font-awesome.min.css?1732762556 — 200 — 6.3 KiB — 323 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/FontAwesome/css/v4-shims.min.css?1740403850www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/FontAwesome/css/v4-shims.min.css?1740403850 — 200 — 4.2 KiB — 325 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/animate.css?1732762556www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/animate.css?1732762556 — 200 — 3.0 KiB — 326 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/jssocials.css?1732762556www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/jssocials.css?1732762556 — 200 — 715 B — 327 ms — h2https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/style.css?1747385249www.uoa.gr/typo3conf/ext/uoa_websit... https://www.uoa.gr/typo3conf/ext/uoa_website/Resources/Public/Css/style.css?1747385249 — 200 — 23.9 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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 734ms · 393KB · €8/mo
www.uoa.gr
Other
Costly
Execution 303ms
Transfer 21 KB
Monthly Cost €3/mo
www.uoa.gr
Other
Optional
Execution 185ms
Transfer 215 KB
Unused 77%
Monthly Cost €2/mo
Unattributable
Other
Optional
Execution 146ms
Transfer 0 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 101ms
Transfer 157 KB
Unused 42%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.uoa.gr adds 303ms and costs ~€3/month

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

www.uoa.gr takes 303ms 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

77% of www.uoa.gr's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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