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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
87
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
99
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

954 ms

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.

63 ms

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

0.005

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

1.13 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.

4.28 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
5 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
2.8 MB transferred, 100 requests
FIX
2.8 MB transferred, 100 requests
Warning::
Page weighs 5.7 MB (2.8 MB transferred)
Warning::
JavaScript is 1023 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1023 KB
Info::
Fonts are 728 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 728 KB
Info::
100 HTTP requests
Info::
Estimated 0.58 g CO2 per page load
2.8 MB / 2.4 MB budget
2.8 MB transferred
100 requests
0.58 g CO2 per page load
JavaScript 1022.8 KiB 36%
Images 899.4 KiB 32%
Fonts 728.4 KiB 26%
CSS 117.2 KiB 4%
HTML 19.1 KiB 1%
Other 13.3 KiB 0%
Other 8.1 KiB 0%
Other 6.6 KiB 0%
Other 3.3 KiB 0%
Other 1.2 KiB 0%
Other 0 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

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 (2.8 MiB of 2.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
29 scripts, 367 KB unused
FIX
29 scripts, 367 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CY2G...: 68 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-Z6VS...: 65 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.calpoly.edu/sites/default/files/js/js_...: 63 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MBL...: 61 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://analytics.tiktok.com/i18n/pixel/static/mai...: 55 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 367 KB
367 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-CY2GPTVZY7&cx=c&gtm=4e64k1172 KB68 KB (39%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-Z6VS956HHF&cx=c&gtm=4e64k1157 KB65 KB (41%)✓3rd
https://www.calpoly.edu/sites/default/files/js/js_9NwcSgdGsm9DObnpkCuS0bYjMMRLPEbOwaTtfs3BLsg.js?scope=footer&delta=2&language=en&theme=calpoly_v2&include=eJxtyVEOgzAMA9ALoVbahZChJcuWNYgG2t5--0ATsP1Y9jNCMEVqHntx06LJuhEyq7R-0jUFGGvyJDpAvs92-yNaxI1YdM3x5Flg0c1cr8zj8wecMN1t0Hp8Ns5sAS0fsWjpSJUk9gby9InrdnignvH1BosAXkg92 KB63 KB (69%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MBL5BT2140 KB61 KB (43%)✓3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js106 KB55 KB (52%)✓3rd
https://connect.facebook.net/en_US/fbevents.js97 KB34 KB (36%)✓3rd
https://static.addtoany.com/menu/modules/core.ydpp7jcu.js26 KB21 KB (82%)✓3rd
https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick.min.js10 KB—✓3rd
https://www.calpoly.edu/sites/default/files/js/js_FdenDZp-2hBySUCqDqfP-aGLtsElf0FUdLF158oObQU.js?scope=footer&delta=0&language=en&theme=calpoly_v2&include=eJxtyVEOgzAMA9ALoVbahZChJcuWNYgG2t5--0ATsP1Y9jNCMEVqHntx06LJuhEyq7R-0jUFGGvyJDpAvs92-yNaxI1YdM3x5Flg0c1cr8zj8wecMN1t0Hp8Ns5sAS0fsWjpSJUk9gby9InrdnignvH1BosAXkg40 KB—✓3rd
https://cdnjs.cloudflare.com/ajax/libs/wow/1.1.2/wow.min.js3 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

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
100 resources · 2.8 MB · 367 KB savings available
FIX
100 resources · 2.8 MB · 367 KB savings available
Warning::
Page weight 1.8 MB over 1MB target
Got: 2.8 MB Expected: ≤ 1 MB
Info::
~367 KB of savings available
Warning::
99 third-party resources (100% of weight)
Info::
1 resources over 200KB
100 resources · 2.8 MiB · 99 third-party 1.8 MiB over 1MB target
JavaScript 36% · 1022.8 KiB
Image 32% · 905.6 KiB
Font 26% · 728.4 KiB
CSS 4% · 117.2 KiB
Document 1% · 27.4 KiB
Other 1% · 17.9 KiB

~366.7 KiB of savings available

Remove unused JavaScript: 366.7 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
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Warning::
https://www.calpoly.edu/themes/custom/calpoly_v2/i... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 899 KB
0 oversized -0 KB
7 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 Execution Cost
926ms total JS execution
REVIEW
926ms total JS execution
Info::
https://www.calpoly.edu/: 243ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-MBL...: 209ms CPU time
Info::
Unattributable: 136ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-CY2G...: 132ms CPU time
Info::
https://analytics.tiktok.com/i18n/pixel/static/mai...: 76ms CPU time
Warning::
Third-party scripts: 926ms (100% of total)

Main Thread Breakdown

Script Evaluation 54% Other 21% Style & Layout 14% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
https://www.calpoly.edu/243ms3ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MBL5BT2209ms182ms9ms3rd
Unattributable136ms4ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CY2GPTVZY7&cx=c&gtm=4e64k1132ms121ms10ms3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js76ms62ms9ms3rd
https://www.googletagmanager.com/gtag/js?id=G-Z6VS956HHF&cx=c&gtm=4e64k166ms56ms9ms3rd
https://www.calpoly.edu/sites/default/files/js/js_FdenDZp-2hBySUCqDqfP-aGLtsElf0FUdLF158oObQU.js?scope=footer&delta=0&language=en&theme=calpoly_v2&include=eJxtyVEOgzAMA9ALoVbahZChJcuWNYgG2t5--0ATsP1Y9jNCMEVqHntx06LJuhEyq7R-0jUFGGvyJDpAvs92-yNaxI1YdM3x5Flg0c1cr8zj8wecMN1t0Hp8Ns5sAS0fsWjpSJUk9gby9InrdnignvH1BosAXkg64ms47ms3ms3rd
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 (728 KB)
PASS
9 fonts (728 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

728 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 500 ms 1.0 s 1.5 s 2.0 s FCP 954 ms LCP 2.3 shttps://use.typekit.net/af/61f808/00000000000000003b9b3d63/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/61f808/00000000000000003b9b3d63/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 34.0 KiB — 28 ms — font-display: swaphttps://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-light-300.woff2fa-light-300.woff2 https://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-light-300.woff2 — 186.3 KiB — 35 ms — font-display: swaphttps://use.typekit.net/af/422d60/00000000000000003b9b3d67/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3l https://use.typekit.net/af/422d60/00000000000000003b9b3d67/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3 — 33.6 KiB — 41 ms — font-display: swaphttps://use.typekit.net/af/50a714/0000000000000000000171ae/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/50a714/0000000000000000000171ae/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 11.9 KiB — 38 ms — font-display: swaphttps://use.typekit.net/af/d8739d/000000000000000000013060/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/d8739d/000000000000000000013060/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 44.2 KiB — 32 ms — font-display: swaphttps://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-regular-400.woff2fa-regular-400.woff2 https://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-regular-400.woff2 — 170.6 KiB — 49 ms — font-display: swaphttps://use.typekit.net/af/348732/00000000000000003b9b3d65/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n6&v=3l https://use.typekit.net/af/348732/00000000000000003b9b3d65/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n6&v=3 — 33.9 KiB — 33 ms — font-display: swaphttps://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-solid-900.woff2 — 138.7 KiB — 46 ms — font-display: swaphttps://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://www.calpoly.edu/themes/custom/calpoly_v2/webfonts/fa-brands-400.woff2 — 75.1 KiB — 44 ms — font-display: swap
l woff2 swap
Size 34 KB
Load time 28 ms
Start 271 ms
Risk FOUT — text flashes from fallback to web font
fa-light-300.woff2 woff2 swap
Size 186 KB
Load time 35 ms
Start 271 ms
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
l woff2 swap
Size 34 KB
Load time 41 ms
Start 271 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 12 KB
Load time 38 ms
Start 272 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 44 KB
Load time 32 ms
Start 272 ms
Risk FOUT — text flashes from fallback to web font
fa-regular-400.woff2 woff2 swap
Size 171 KB
Load time 49 ms
Start 274 ms
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
l woff2 swap
Size 34 KB
Load time 33 ms
Start 274 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 139 KB
Load time 46 ms
Start 277 ms
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
fa-brands-400.woff2 woff2 swap
Size 75 KB
Load time 44 ms
Start 279 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)

Fixing the unchecked items could save ~248 KB and ~496 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
100 requests over 2367ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 954 ms LCP 2.3 shttps://calpoly.edu// https://calpoly.edu/ — 301 — 206 B — 8 ms — h2https://www.calpoly.edu/www.calpoly.edu/ https://www.calpoly.edu/ — 200 — 17.6 KiB — 7 ms — h2https://www.calpoly.edu/sites/default/files/css/css_66LfG7ei_IKizJ01er5ExcmLGftYV-qqM6n_vLMn9VI.css?delta=0&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQwww.calpoly.edu/sites/default/files... https://www.calpoly.edu/sites/default/files/css/css_66LfG7ei_IKizJ01er5ExcmLGftYV-qqM6n_vLMn9VI.css?delta=0&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQ — 200 — 2.1 KiB — 12 ms — h2https://use.typekit.net/woo2jxe.cssuse.typekit.net/woo2jxe.css https://use.typekit.net/woo2jxe.css — 200 — 1.2 KiB — 56 ms — h2https://www.calpoly.edu/sites/default/files/css/css_lsFclIQFRppquQ4Fo1i80vB5OVxMBsQ84LJAoHBhESI.css?delta=2&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQwww.calpoly.edu/sites/default/files... https://www.calpoly.edu/sites/default/files/css/css_lsFclIQFRppquQ4Fo1i80vB5OVxMBsQ84LJAoHBhESI.css?delta=2&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQ — 200 — 407 B — 15 ms — h2https://www.calpoly.edu/sites/default/files/css/css_372HTtNfkdE93d7nNhJGnZ8rbuU-62KND2gYh5CcRXE.css?delta=3&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQwww.calpoly.edu/sites/default/files... https://www.calpoly.edu/sites/default/files/css/css_372HTtNfkdE93d7nNhJGnZ8rbuU-62KND2gYh5CcRXE.css?delta=3&language=en&theme=calpoly_v2&include=eJxljkEOgzAMBD9EE6l9EDLEBBcTR3EC5PdFVVuouKxWM3tYcC4LhGrhU8yQJOSmB47CtR2kBAeZJFjP0gH_zHK3w768wYoqM575dSkrmx6SFMU_rkz9dAGGyY-5k-1sco040f5sQkdZUlsfmdrIxVPQw0pC61KJwAaesDUREvgEcdQvPogpIZaOSUd0jVbNONsOFJuFcFX7TjOLK4wvoRRzDQ — 200 — 106.9 KiB — 19 ms — h2https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.min.csscdnjs.cloudflare.com/ajax/libs/OwlC... 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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 926ms · 632KB · €10/mo
www.calpoly.edu
Other
Costly
Execution 243ms
Transfer 18 KB
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Costly
Execution 209ms
Transfer 140 KB
Unused 43%
Monthly Cost €2/mo
Unattributable
Other
Optional
Execution 136ms
Transfer 0 KB
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 132ms
Transfer 172 KB
Unused 39%
Monthly Cost €1/mo
analytics.tiktok.com
Other
Optional
Execution 76ms
Transfer 106 KB
Unused 52%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 66ms
Transfer 157 KB
Unused 41%
Monthly Cost €1/mo
www.calpoly.edu
Other
Optional
Execution 64ms
Transfer 40 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.calpoly.edu adds 243ms and costs ~€3/month
  • Google Tag Manager adds 209ms and costs ~€2/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.calpoly.edu takes 243ms 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 209ms 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

52% of analytics.tiktok.com'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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