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https://ufmg.br

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
58
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
93
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.
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.

3.22 s

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

13.60 s

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

412 ms

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

0.022

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

3.47 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.

15.26 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
17
7 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
10.7 MB transferred, 47 requests
FIX
10.7 MB transferred, 47 requests
Critical::
Page weighs 11.4 MB (10.7 MB transferred)
Warning::
Images are 9.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 9.7 MB
Info::
Fonts are 384 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 384 KB
Info::
47 HTTP requests
Info::
Estimated 2.3 g CO2 per page load
10.7 MB / 2.4 MB budget
10.7 MB transferred
47 requests
2.3 g CO2 per page load
Images 9.7 MiB 90%
Fonts 383.7 KiB 3%
JavaScript 371.2 KiB 3%
HTML 164.4 KiB 1%
CSS 124.7 KiB 1%
Other 5.3 KiB 0%
Other 556 B 0%
Other 547 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 (10.7 MiB of 10.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
3082ms total JS execution
FIX
3082ms total JS execution
Warning::
https://www.ufmg.br/: 1732ms CPU time
Warning::
Unattributable: 376ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-0MLC...: 349ms CPU time
Info::
https://cdn.jsdelivr.net/npm/swiper@12/swiper-bund...: 236ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-NH7...: 225ms CPU time
Warning::
Third-party scripts: 3082ms (100% of total)

Main Thread Breakdown

Other 52% Script Evaluation 21% Style & Layout 17% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://www.ufmg.br/1732ms20ms2ms3rd
Unattributable376ms7ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-0MLC50L5P7&cx=c&gtm=4e64k0349ms279ms66ms3rd
https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=6.8.3236ms86ms19ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8225ms163ms51ms3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/banner.js?ver=1.2.090ms66ms0ms3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/menu.js?ver=1.2.076ms4ms1ms3rd
D
Page Weight Inventory
Action
47 resources · 10.7 MB · 157 KB savings available
FIX
47 resources · 10.7 MB · 157 KB savings available
Warning::
Page weight 9.7 MB over 1MB target
Got: 10.7 MB Expected: ≤ 1 MB
Info::
~157 KB of savings available
Warning::
46 third-party resources (100% of weight)
Info::
10 resources over 200KB
47 resources · 10.7 MiB · 46 third-party 9.7 MiB over 1MB target
Image 90% · 9.7 MiB
Font 3% · 383.7 KiB
JavaScript 3% · 371.2 KiB
Document 1% · 164.5 KiB
CSS 1% · 124.7 KiB
Other 0% · 1.1 KiB

~157.5 KiB of savings available

Remove unused JavaScript: 157.5 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
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Warning::
https://www.ufmg.br//app/themes/portal-ufmg/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.ufmg.br//app/themes/portal-ufmg/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
21 images 9.7 MB
0 oversized -0 KB
18 legacy format
2 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

C
JS Bundles
Action
13 scripts, 157 KB unused
REVIEW
13 scripts, 157 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-0MLC...: 66 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NH7...: 65 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.jsdelivr.net/npm/swiper@12/swiper-bund...: 27 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 157 KB
157 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-0MLC50L5P7&cx=c&gtm=4e64k0160 KB66 KB (41%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8129 KB65 KB (50%)✓3rd
https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=6.8.344 KB27 KB (61%)✓3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/home.js?ver=1.2.01 KB—✓3rd
https://www.ufmg.br//app/mu-plugins/ufmg-favicon-switcher/js/favicon-switcher.js1 KB—✓3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/navigation.js?ver=1.2.03 KB—✓3rd
https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/js/wpp.js?ver=7.3.56 KB—✓3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/util.js6 KB—✓3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/banner.js?ver=1.2.02 KB—✓3rd
https://www.ufmg.br//app/themes/portal-ufmg/js/ufmg-networks.js?ver=6.8.39 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

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+
Font Loading
4 fonts (384 KB)
PASS
4 fonts (384 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

384 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.2 s LCP 13.6 shttps://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-VariableFont_wght.ttfPublicSans-VariableFont... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-VariableFont_wght.ttf — 99.6 KiB — 14 ms — font-display: swaphttps://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.woff2?1772630502875iconly.woff2 https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.woff2?1772630502875 — 7.4 KiB — 13 ms — font-display: swaphttps://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/lexend/Lexend-VariableFont_wght.ttfLexend-VariableFont_wgh... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/lexend/Lexend-VariableFont_wght.ttf — 172.7 KiB — 97 ms — font-display: swaphttps://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-Italic-VariableFont_wght.ttfPublicSans-Italic-Varia... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-Italic-VariableFont_wght.ttf — 103.9 KiB — 20 ms — font-display: swap
PublicSans-VariableFont... ttf swap
Size 100 KB
Load time 14 ms
Start 200 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
iconly.woff2 woff2 swap
Size 7 KB
Load time 13 ms
Start 298 ms
Risk FOUT — text flashes from fallback to web font
Lexend-VariableFont_wgh... ttf swap
Size 173 KB
Load time 97 ms
Start 345 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
PublicSans-Italic-Varia... ttf swap
Size 104 KB
Load time 20 ms
Start 799 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~251 KB and ~502 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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
Page uses 1 resource hint(s)

Current Resource Hints

preconnect
—
preload
—
dns-prefetch
1
prefetch
—

1 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
47 requests over 1445ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.2 s LCP 13.6 shttps://ufmg.br// https://ufmg.br/ — 301 — 116 B — 38 ms — h2https://www.ufmg.br/www.ufmg.br/ https://www.ufmg.br/ — 200 — 164.4 KiB — 511 ms — h2https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/js/wpp.js?ver=7.3.5www.ufmg.br//app/mu-plugins/wordpre... https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/js/wpp.js?ver=7.3.5 — 200 — 5.6 KiB — 26 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.min.css?ver=6.8.3www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.min.css?ver=6.8.3 — 200 — 3.4 KiB — 18 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/build/index.css?ver=1.2.0www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/build/index.css?ver=1.2.0 — 200 — 115.6 KiB — 42 ms — h2https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/css/wpp.css?ver=7.3.5www.ufmg.br//app/mu-plugins/wordpre... https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/css/wpp.css?ver=7.3.5 — 200 — 2.0 KiB — 30 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/js/menu.js?ver=1.2.0www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/js/menu.js?ver=1.2.0 — 200 — 7.8 KiB — 28 ms — h2https://www.ufmg.br//app/uploads/2025/09/ufmg-logo.svgwww.ufmg.br//app/uploads/2025/09/uf... https://www.ufmg.br//app/uploads/2025/09/ufmg-logo.svg — 200 — 5.1 KiB — 26 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8www.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8 — 200 — 128.6 KiB — 256 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-VariableFont_wght.ttfwww.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-VariableFont_wght.ttf — 200 — 99.6 KiB — 14 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.woff2?1772630502875www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.woff2?1772630502875 — 200 — 7.4 KiB — 13 ms — h2https://www.ufmg.br//app/uploads/2026/04/estudantes-na-recepcao-de-calouros-scaled.jpgwww.ufmg.br//app/uploads/2026/04/es... https://www.ufmg.br//app/uploads/2026/04/estudantes-na-recepcao-de-calouros-scaled.jpg — 200 — 1.3 MiB — 80 ms — h2https://www.ufmg.br//app/uploads/2026/04/atividade-fisica-e-diabetes.jpegwww.ufmg.br//app/uploads/2026/04/at... https://www.ufmg.br//app/uploads/2026/04/atividade-fisica-e-diabetes.jpeg — 200 — 147.1 KiB — 86 ms — h2https://www.ufmg.br//app/uploads/2026/03/banco-vermelho-2.jpgwww.ufmg.br//app/uploads/2026/03/ba... https://www.ufmg.br//app/uploads/2026/03/banco-vermelho-2.jpg — 200 — 1.7 MiB — 219 ms — h2https://www.ufmg.br//app/uploads/2026/03/Gemini_Generated_Image_n6nb8mn6nb8mn6nb.pngwww.ufmg.br//app/uploads/2026/03/Ge... https://www.ufmg.br//app/uploads/2026/03/Gemini_Generated_Image_n6nb8mn6nb8mn6nb.png — 200 — 1.4 MiB — 220 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/lexend/Lexend-VariableFont_wght.ttfwww.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/lexend/Lexend-VariableFont_wght.ttf — 200 — 172.7 KiB — 97 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/img/banner-cursos-home.webpwww.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/img/banner-cursos-home.webp — 200 — 1.5 MiB — 87 ms — h2https://www.ufmg.br//app/uploads/2026/04/coloquio.jpgwww.ufmg.br//app/uploads/2026/04/co... https://www.ufmg.br//app/uploads/2026/04/coloquio.jpg — 200 — 473.5 KiB — 96 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/img/arrow-left-white.svgwww.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/img/arrow-left-white.svg — 200 — 640 B — 22 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/img/arrow-right-white.svgwww.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/img/arrow-right-white.svg — 200 — 639 B — 25 ms — h2https://www.ufmg.br//app/uploads/2026/04/THUMB-PORTAL-768x432.jpgwww.ufmg.br//app/uploads/2026/04/TH... https://www.ufmg.br//app/uploads/2026/04/THUMB-PORTAL-768x432.jpg — 200 — 98.9 KiB — 49 ms — h2data:image/svg+xml;base64,PHN2ZyBpZD0iQ2FtYWRhXzEiIGRhdGEtbmFtZT0iQ2FtYWRhIDEiIHhtbG5zPSJodHRwOi8vd…data:image/svg+xml;base64,PHN2ZyBpZ... data:image/svg+xml;base64,PHN2ZyBpZD0iQ2FtYWRhXzEiIGRhdGEtbmFtZT0iQ2FtYWRhIDEiIHhtbG5zPSJodHRwOi8vd… — 200 — 0 B — 0 ms — datahttps://www.ufmg.br//app/uploads/2026/04/FRAME-YOUTUBE-266x192.jpgwww.ufmg.br//app/uploads/2026/04/FR... https://www.ufmg.br//app/uploads/2026/04/FRAME-YOUTUBE-266x192.jpg — 200 — 30.8 KiB — 35 ms — h2data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMQAAADECAYAAADApo5rAAAAAXNSR0IArs4c6QAAEEBJREFUeF7t3…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMQAAADECAYAAADApo5rAAAAAXNSR0IArs4c6QAAEEBJREFUeF7t3… — 200 — 0 B — 0 ms — datahttps://www.ufmg.br//app/uploads/2026/04/WhatsApp-Image-2026-04-02-at-19.28.28-266x192.jpegwww.ufmg.br//app/uploads/2026/04/Wh... https://www.ufmg.br//app/uploads/2026/04/WhatsApp-Image-2026-04-02-at-19.28.28-266x192.jpeg — 200 — 19.2 KiB — 38 ms — h2https://www.ufmg.br//app/uploads/2026/03/THUMB-YT_EP04-266x192.jpgwww.ufmg.br//app/uploads/2026/03/TH... https://www.ufmg.br//app/uploads/2026/03/THUMB-YT_EP04-266x192.jpg — 200 — 31.0 KiB — 41 ms — h2https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.css?ver=6.8.3cdn.jsdelivr.net/npm/swiper@12/swip... https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.css?ver=6.8.3 — 200 — 3.7 KiB — 50 ms — h2https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=6.8.3cdn.jsdelivr.net/npm/swiper@12/swip... https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=6.8.3 — 200 — 44.0 KiB — 77 ms — h2https://www.ufmg.br//app/mu-plugins/ufmg-favicon-switcher/js/favicon-switcher.jswww.ufmg.br//app/mu-plugins/ufmg-fa... https://www.ufmg.br//app/mu-plugins/ufmg-favicon-switcher/js/favicon-switcher.js — 200 — 867 B — 30 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/js/navigation.js?ver=1.2.0www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/js/navigation.js?ver=1.2.0 — 200 — 3.1 KiB — 31 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.2 s LCP 13.6 shttps://ufmg.br// https://ufmg.br/ — 301 — 116 B — 38 ms — h2https://www.ufmg.br/www.ufmg.br/ https://www.ufmg.br/ — 200 — 164.4 KiB — 511 ms — h2https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/js/wpp.js?ver=7.3.5www.ufmg.br//app/mu-plugins/wordpre... https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/js/wpp.js?ver=7.3.5 — 200 — 5.6 KiB — 26 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.min.css?ver=6.8.3www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/ufmg-icons/iconly.min.css?ver=6.8.3 — 200 — 3.4 KiB — 18 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/build/index.css?ver=1.2.0www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/build/index.css?ver=1.2.0 — 200 — 115.6 KiB — 42 ms — h2https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/css/wpp.css?ver=7.3.5www.ufmg.br//app/mu-plugins/wordpre... https://www.ufmg.br//app/mu-plugins/wordpress-popular-posts/assets/css/wpp.css?ver=7.3.5 — 200 — 2.0 KiB — 30 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/js/menu.js?ver=1.2.0www.ufmg.br//app/themes/portal-ufmg... https://www.ufmg.br//app/themes/portal-ufmg/js/menu.js?ver=1.2.0 — 200 — 7.8 KiB — 28 ms — h2https://www.ufmg.br//app/uploads/2025/09/ufmg-logo.svgwww.ufmg.br//app/uploads/2025/09/uf... https://www.ufmg.br//app/uploads/2025/09/ufmg-logo.svg — 200 — 5.1 KiB — 26 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8www.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-NH7JKG8 — 200 — 128.6 KiB — 256 ms — h2https://www.ufmg.br//app/themes/portal-ufmg/assets/fonts/public-sans/PublicSans-VariableFont_wght.ttfwww.ufmg.br//app/themes/portal-ufmg... 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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 3082ms · 506KB · R$38/mo
www.ufmg.br
Other
Costly
Execution 1732ms
Transfer 164 KB
Monthly Cost R$21/mo
Unattributable
Other
Costly
Execution 376ms
Transfer 0 KB
Monthly Cost R$5/mo
Google Tag Manager
Tag Manager
Costly
Execution 349ms
Transfer 160 KB
Unused 41%
Monthly Cost R$4/mo
jsDelivr
CDN
Costly
Execution 236ms
Transfer 44 KB
Unused 61%
Monthly Cost R$3/mo
Google Tag Manager
Tag Manager
Costly
Execution 225ms
Transfer 129 KB
Unused 50%
Monthly Cost R$3/mo
www.ufmg.br
Other
Optional
Execution 90ms
Transfer 2 KB
Monthly Cost R$1/mo
www.ufmg.br
Other
Optional
Execution 76ms
Transfer 8 KB
Monthly Cost R$1/mo

These scripts may cost more than they're worth

  • www.ufmg.br adds 1732ms and costs ~R$21/month
  • Unattributable adds 376ms and costs ~R$5/month
  • Google Tag Manager adds 349ms and costs ~R$4/month
  • jsDelivr adds 236ms and costs ~R$3/month
  • Google Tag Manager adds 225ms and costs ~R$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.ufmg.br takes 1732ms 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

Unattributable takes 376ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 349ms 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

jsDelivr takes 236ms 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

61% of jsDelivr'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

Google Tag Manager takes 225ms 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

50% of Google Tag Manager'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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