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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
3
REVIEW
4
PASS
6
INFO
2

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

Mobile Desktop
57
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.

2.77 s

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

6.57 s

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

14 ms

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

0.075

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

3.25 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.

6.67 s

Page Load Progression

426 ms
851 ms
1.3 s
1.7 s
2.1 s
2.6 s
3.0 s
3.4 s
Checks
15
6 PASS 4 REVIEW 3 FIX
F
Page Weight Budget
Action
4.7 MB transferred, 107 requests
FIX
4.7 MB transferred, 107 requests
Critical::
Page weighs 8.8 MB (4.7 MB transferred)
Warning::
Images are 3.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.0 MB
Warning::
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Warning::
107 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.99 g CO2 per page load
4.7 MB / 2.4 MB budget
4.7 MB transferred
107 requests
0.99 g CO2 per page load
Images 3.0 MiB 64%
JavaScript 1.2 MiB 26%
Fonts 197.2 KiB 4%
CSS 151.1 KiB 3%
HTML 90.8 KiB 2%
Other 50.2 KiB 1%
Other 1.7 KiB 0%
Other 572 B 0%
Other 560 B 0%
Other 0 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

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
JS Bundles
Action
33 scripts, 155 KB unused
FIX
33 scripts, 155 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MWZ...: 64 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-F236...: 61 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://script.crazyegg.com/pages/versioned/common...: 29 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.fullerton.edu/_resources/js/jquery-3.6...: unminified — 6 KB could be saved
Info::
Total unused JavaScript: 155 KB
155 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-MWZNRQSL121 KB64 KB (53%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-F236HL21QV&cx=c&gtm=4e64k0176 KB61 KB (35%)✓3rd
https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js55 KB29 KB (53%)✓3rd
https://www.fullerton.edu/_resources/js/udm-dom.js7 KB—✓1st
https://www.fullerton.edu/_resources/js/jquery-3.6.0.min.js33 KB—✗1st
https://www.fullerton.edu/_resources/js/document.ready.js?v=1.12 KB—✓1st
https://www.fullerton.edu/_resources/js/mobile.js1 KB—✓1st
https://www.fullerton.edu/_resources/js/ajax_base.js?v=1.14 KB—✓1st
https://www.fullerton.edu/_resources/js/page_features.js?v=1.114 KB—✗1st
https://www.fullerton.edu/_resources/js/udm-custom.js3 KB—✗1st

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
107 resources · 4.7 MB · 155 KB savings available
FIX
107 resources · 4.7 MB · 155 KB savings available
Warning::
Page weight 3.7 MB over 1MB target
Got: 4.7 MB Expected: ≤ 1 MB
Info::
~155 KB of savings available
Warning::
44 third-party resources (42% of weight)
Info::
6 resources over 200KB
107 resources · 4.7 MiB · 44 third-party 3.7 MiB over 1MB target
Image 64% · 3.0 MiB
JavaScript 26% · 1.2 MiB
Font 4% · 197.2 KiB
CSS 3% · 151.1 KiB
Document 2% · 90.8 KiB
Other 1% · 51.3 KiB

~154.6 KiB of savings available

Remove unused JavaScript: 154.6 KiB
B
Third-Party Impact
42% third-party, 0 ms blocking
REVIEW
42% third-party, 0 ms blocking
Info::
Third-party code accounts for 42% of page weight (2.0 MiB of 4.7 MiB)
Info::
Third-party blocking time is low (0 ms)
58%
42%
First-party Third-party
C
Image Optimization
Action
34 images, 0 KB saveable
REVIEW
34 images, 0 KB saveable
Warning::
https://www.fullerton.edu/_resources/images/core/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://news.fullerton.edu/app/uploads/2026/04/CSU... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.fullerton.edu/_resources/images/misc/E... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://news.fullerton.edu/app/uploads/2026/03/Cyb... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://news.fullerton.edu/app/uploads/2026/04/CSU... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.fullerton.edu/_resources/images/misc/E... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.fullerton.edu/_resources/images/core/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://news.fullerton.edu/app/uploads/2026/02/CSU... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.fullerton.edu/_resources/images/icons/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.fullerton.edu/_resources/images/misc/E... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://news.fullerton.edu/app/uploads/2026/03/Lui... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
34 images 3.0 MB
0 oversized -0 KB
33 legacy format
11 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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

private

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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
456ms total JS execution
PASS
456ms total JS execution
Info::
https://www.fullerton.edu/: 124ms CPU time
Info::
Unattributable: 114ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-F236...: 82ms CPU time
Info::
https://script.crazyegg.com/pages/versioned/common...: 79ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-MWZ...: 56ms CPU time
Warning::
Third-party scripts: 331ms (73% of total)

Main Thread Breakdown

Script Evaluation 44% Other 29% Style & Layout 11% Script Parsing & Compilation 8% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://www.fullerton.edu/124ms1ms1ms1st
Unattributable114ms1ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-F236HL21QV&cx=c&gtm=4e64k082ms65ms15ms3rd
https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js79ms70ms3ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MWZNRQSL56ms40ms11ms3rd
A+
Font Loading
8 fonts (197 KB)
PASS
8 fonts (197 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

197 KB total

Render-blocking

0

of 8

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 5.0 s 6.0 s FCP 2.8 s LCP 6.6 shttps://www.fullerton.edu/_resources/fonts/roboto-v15-latin-regular.woff2roboto-v15-latin-regula... https://www.fullerton.edu/_resources/fonts/roboto-v15-latin-regular.woff2 — 14.6 KiB — 184 ms — font-display: swaphttps://www.fullerton.edu/_resources/fonts/roboto-v15-latin-500.woff2roboto-v15-latin-500.woff2 https://www.fullerton.edu/_resources/fonts/roboto-v15-latin-500.woff2 — 14.6 KiB — 209 ms — font-display: swaphttps://www.fullerton.edu/_resources/fonts/icomoon.wofficomoon.woff https://www.fullerton.edu/_resources/fonts/icomoon.woff — 1.2 KiB — 252 ms — font-display: swaphttps://www.fullerton.edu/_resources/fonts/roboto-v15-latin-900.woff2roboto-v15-latin-900.woff2 https://www.fullerton.edu/_resources/fonts/roboto-v15-latin-900.woff2 — 14.5 KiB — 289 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0fontawesome-webfont.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0 — 76.0 KiB — 79 ms — font-display: swaphttps://www.fullerton.edu/_resources/fonts/texgyreschola-regular-webfont.wofftexgyreschola-regular-w... https://www.fullerton.edu/_resources/fonts/texgyreschola-regular-webfont.woff — 28.1 KiB — 293 ms — font-display: swaphttps://www.fullerton.edu/_resources/fonts/crimson-text-v6-latin-regular.woff2crimson-text-v6-latin-r... https://www.fullerton.edu/_resources/fonts/crimson-text-v6-latin-regular.woff2 — 14.3 KiB — 312 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 80 ms — font-display: swap
roboto-v15-latin-regula... woff2 swap
Size 15 KB
Load time 184 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
roboto-v15-latin-500.woff2 woff2 swap
Size 15 KB
Load time 209 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
icomoon.woff woff swap
Size 1 KB
Load time 252 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto-v15-latin-900.woff2 woff2 swap
Size 15 KB
Load time 289 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont.woff2 unknown swap
Size 76 KB
Load time 79 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
texgyreschola-regular-w... woff swap
Size 28 KB
Load time 293 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
crimson-text-v6-latin-r... woff2 swap
Size 14 KB
Load time 312 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 80 ms
Start 1.8 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 ~32 KB and ~64 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
107 requests over 4995ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 2.8 s LCP 6.6 shttps://www.fullerton.edu// https://www.fullerton.edu/ — 200 — 34.8 KiB — 525 ms — http/1.1https://www.fullerton.edu/_resources/css/reset.css/_resources/css/reset.css https://www.fullerton.edu/_resources/css/reset.css — 200 — 1.2 KiB — 178 ms — http/1.1https://www.fullerton.edu/_resources/css/core2.css?v=1.1/_resources/css/core2.css?v=1.1 https://www.fullerton.edu/_resources/css/core2.css?v=1.1 — 200 — 8.8 KiB — 179 ms — http/1.1https://www.fullerton.edu/_resources/fonts/typefaces.css/_resources/fonts/typefaces.css https://www.fullerton.edu/_resources/fonts/typefaces.css — 200 — 1.4 KiB — 353 ms — http/1.1https://www.fullerton.edu/_resources/css/homepage-refresh.css?v=20260416035258/_resources/css/homepage-refresh.cs... https://www.fullerton.edu/_resources/css/homepage-refresh.css?v=20260416035258 — 200 — 12.3 KiB — 353 ms — http/1.1https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css — 200 — 6.1 KiB — 77 ms — h3https://www.fullerton.edu/_resources/css/udm-style.css/_resources/css/udm-style.css https://www.fullerton.edu/_resources/css/udm-style.css — 200 — 2.3 KiB — 490 ms — http/1.1https://www.fullerton.edu/_resources/css/dropdown.css/_resources/css/dropdown.css https://www.fullerton.edu/_resources/css/dropdown.css — 200 — 999 B — 507 ms — http/1.1https://www.fullerton.edu/_resources/css/finditMobile.css?v=1.0/_resources/css/finditMobile.css?v=... https://www.fullerton.edu/_resources/css/finditMobile.css?v=1.0 — 200 — 1.3 KiB — 505 ms — http/1.1https://www.fullerton.edu/_resources/css/sitenav-test2.css/_resources/css/sitenav-test2.css https://www.fullerton.edu/_resources/css/sitenav-test2.css — 200 — 2.7 KiB — 520 ms — http/1.1https://www.fullerton.edu/_resources/css/search.css/_resources/css/search.css https://www.fullerton.edu/_resources/css/search.css — 200 — 2.2 KiB — 526 ms — http/1.1https://www.fullerton.edu/_resources/js/GoogleTagManager.js/_resources/js/GoogleTagManager.js https://www.fullerton.edu/_resources/js/GoogleTagManager.js — 200 — 844 B — 652 ms — http/1.1https://www.fullerton.edu/_resources/js/modernizr.custom.js/_resources/js/modernizr.custom.js https://www.fullerton.edu/_resources/js/modernizr.custom.js — 200 — 4.3 KiB — 675 ms — http/1.1https://www.fullerton.edu/_resources/js/jquery-3.6.0.min.js/_resources/js/jquery-3.6.0.min.js https://www.fullerton.edu/_resources/js/jquery-3.6.0.min.js — 200 — 32.6 KiB — 675 ms — http/1.1https://www.fullerton.edu/_resources/js/modernizr.js/_resources/js/modernizr.js https://www.fullerton.edu/_resources/js/modernizr.js — 200 — 6.4 KiB — 695 ms — http/1.1https://www.fullerton.edu/_resources/js/jquery.tabSlideOut.v1.3.js/_resources/js/jquery.tabSlideOut.v... https://www.fullerton.edu/_resources/js/jquery.tabSlideOut.v1.3.js — 200 — 1.9 KiB — 699 ms — http/1.1https://www.fullerton.edu/_resources/js/document.ready.js?v=1.1/_resources/js/document.ready.js?v=... https://www.fullerton.edu/_resources/js/document.ready.js?v=1.1 — 200 — 2.0 KiB — 699 ms — http/1.1https://www.fullerton.edu/_resources/js/mobile.js/_resources/js/mobile.js https://www.fullerton.edu/_resources/js/mobile.js — 200 — 792 B — 814 ms — http/1.1https://www.fullerton.edu/_resources/js/ajax_base.js?v=1.1/_resources/js/ajax_base.js?v=1.1 https://www.fullerton.edu/_resources/js/ajax_base.js?v=1.1 — 200 — 3.7 KiB — 844 ms — http/1.1https://www.fullerton.edu/_resources/js/page_features.js?v=1.11/_resources/js/page_features.js?v=1... https://www.fullerton.edu/_resources/js/page_features.js?v=1.11 — 200 — 3.9 KiB — 844 ms — http/1.1https://www.fullerton.edu/_resources/js/udm-custom.js/_resources/js/udm-custom.js https://www.fullerton.edu/_resources/js/udm-custom.js — 200 — 2.7 KiB — 872 ms — http/1.1https://www.fullerton.edu/_resources/js/udm-control.js/_resources/js/udm-control.js https://www.fullerton.edu/_resources/js/udm-control.js — 200 — 2.6 KiB — 872 ms — http/1.1https://www.fullerton.edu/_resources/js/udm-style.js/_resources/js/udm-style.js https://www.fullerton.edu/_resources/js/udm-style.js — 200 — 4.3 KiB — 977 ms — http/1.1https://www.fullerton.edu/_resources/js/GoogleAnalytics.js/_resources/js/GoogleAnalytics.js https://www.fullerton.edu/_resources/js/GoogleAnalytics.js — 200 — 890 B — 1.0 s — http/1.1https://www.fullerton.edu/_resources/js/CrazyEgg.js/_resources/js/CrazyEgg.js https://www.fullerton.edu/_resources/js/CrazyEgg.js — 200 — 739 B — 1.0 s — http/1.1https://cdnjs.cloudflare.com/ajax/libs/bxslider/4.2.15/jquery.bxslider.min.jscdnjs.cloudflare.com/ajax/libs/bxsl... https://cdnjs.cloudflare.com/ajax/libs/bxslider/4.2.15/jquery.bxslider.min.js — 200 — 6.1 KiB — 58 ms — h3https://www.fullerton.edu/_resources/css/jquery.bxslider.css?v=20260420095438/_resources/css/jquery.bxslider.css... https://www.fullerton.edu/_resources/css/jquery.bxslider.css?v=20260420095438 — 200 — 8.6 KiB — 523 ms — http/1.1https://www.fullerton.edu/_resources/js/jquery.dlmenu.js/_resources/js/jquery.dlmenu.js https://www.fullerton.edu/_resources/js/jquery.dlmenu.js — 200 — 2.7 KiB — 1.0 s — http/1.1https://www.fullerton.edu/_resources/js/udm-dom.js/_resources/js/udm-dom.js https://www.fullerton.edu/_resources/js/udm-dom.js — 200 — 7.2 KiB — 1.0 s — http/1.1https://www.fullerton.edu/_resources/js/udm-mod-keyboard.js/_resources/js/udm-mod-keyboard.js https://www.fullerton.edu/_resources/js/udm-mod-keyboard.js — 200 — 3.1 KiB — 1.0 s — http/1.1
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h2https://www.google.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fwww.fullerton.edu%2F&scrsrc=www.googletagmanager.com&rnd=694047523.1776891688&dt=Achieve%20Greatness%3A%20California%20State%20University%2C%20Fullerton&auid=2028219497.1776891688&navt=n&npa=1&gtm=45je64k0v880402414z89179990689za20gzb9179990689zd9179990689xec&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938469~117266400~117512543~118463262&apve=1&apvf=f&apvc=1&tids=AW-978065630&tid=AW-978065630&tft=1776891688197&tfd=2023www.google.com/ccm/collect?rcb=13&f... https://www.google.com/ccm/collect?rcb=13&frm=0&en=page_view&dl=https%3A%2F%2Fwww.fullerton.edu%2F&scrsrc=www.googletagmanager.com&rnd=694047523.1776891688&dt=Achieve%20Greatness%3A%20California%20State%20University%2C%20Fullerton&auid=2028219497.1776891688&navt=n&npa=1&gtm=45je64k0v880402414z89179990689za20gzb9179990689zd9179990689xec&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616986~115938466~115938469~117266400~117512543~118463262&apve=1&apvf=f&apvc=1&tids=AW-978065630&tid=AW-978065630&tft=1776891688197&tfd=2023 — 200 — 21 B — 78 ms — h3https://googleads.g.doubleclick.net/pagead/idgoogleads.g.doubleclick.net/pagead/... https://googleads.g.doubleclick.net/pagead/id — 302 — 23 B — 86 ms — h3https://static.doubleclick.net/instream/ad_status.jsstatic.doubleclick.net/instream/ad_... https://static.doubleclick.net/instream/ad_status.js — 200 — 494 B — 84 ms — h2https://www.youtube.com/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021.O/am=AAAABA/d=1/exm=base,root/ed=1/br=1/rs=AGKMywFg3MG1UeKh8ePjbhY_YEMv-NHjmA/m=r78Drbwww.youtube.com/s/_/ytembeds/_/js/k... https://www.youtube.com/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021.O/am=AAAABA/d=1/exm=base,root/ed=1/br=1/rs=AGKMywFg3MG1UeKh8ePjbhY_YEMv-NHjmA/m=r78Drb — 200 — 183.1 KiB — 99 ms — h3https://googleads.g.doubleclick.net/pagead/id?slf_rd=1googleads.g.doubleclick.net/pagead/... https://googleads.g.doubleclick.net/pagead/id?slf_rd=1 — 200 — 146 B — 30 ms — h3https://www.fullerton.edu/_resources/images/core/arrow-right-orange.png/_resources/images/core/arrow-right... https://www.fullerton.edu/_resources/images/core/arrow-right-orange.png — 200 — 1.3 KiB — 169 ms — http/1.1https://www.fullerton.edu/_resources/images/Commencement-2026-Featured-Section.jpg/_resources/images/Commencement-202... https://www.fullerton.edu/_resources/images/Commencement-2026-Featured-Section.jpg — 200 — 283.4 KiB — 667 ms — http/1.1https://www.fullerton.edu/_resources/images/misc/Explore-Athletics-2026.jpg/_resources/images/misc/Explore-Ath... https://www.fullerton.edu/_resources/images/misc/Explore-Athletics-2026.jpg — 200 — 270.4 KiB — 689 ms — http/1.1https://i.ytimg.com/vi_webp/akrQScnd-Ys/sddefault.webpi.ytimg.com/vi_webp/akrQScnd-Ys/sdd... https://i.ytimg.com/vi_webp/akrQScnd-Ys/sddefault.webp — 200 — 57.8 KiB — 130 ms — h2https://www.fullerton.edu/_resources/images/misc/Explore-Pollak-Library-2026.jpg/_resources/images/misc/Explore-Pol... https://www.fullerton.edu/_resources/images/misc/Explore-Pollak-Library-2026.jpg — 200 — 374.0 KiB — 690 ms — http/1.1https://www.fullerton.edu/_resources/images/misc/Explore-Arboretum-2026.jpg/_resources/images/misc/Explore-Arb... https://www.fullerton.edu/_resources/images/misc/Explore-Arboretum-2026.jpg — 200 — 366.6 KiB — 807 ms — http/1.1https://script.crazyegg.com/pages/data-scripts/0047/9029/sampling/www.fullerton.edu.json?t=1script.crazyegg.com/pages/data-scri... https://script.crazyegg.com/pages/data-scripts/0047/9029/sampling/www.fullerton.edu.json?t=1 — 200 — 380 B — 104 ms — h3https://www.fullerton.edu/_resources/images/core/CalStateFullerton-reversed-orange.png/_resources/images/core/CalStateFul... https://www.fullerton.edu/_resources/images/core/CalStateFullerton-reversed-orange.png — 200 — 6.4 KiB — 169 ms — http/1.1https://tracking.crazyegg.com/clock?u=479029&st=216947&t=1776891688628&tk=6b65ca1d43253a657f90197195337736tracking.crazyegg.com/clock?u=47902... https://tracking.crazyegg.com/clock?u=479029&st=216947&t=1776891688628&tk=6b65ca1d43253a657f90197195337736 — 204 — 0 B — 123 ms — h2https://pagestates-tracking.crazyegg.com/healthcheckpagestates-tracking.crazyegg.com/he... https://pagestates-tracking.crazyegg.com/healthcheck — 200 — 462 B — 35 ms — h2blob:https://www.fullerton.edu/c46f2e3a-ed11-4368-9600-d6da0d598ef1www.fullerton.edu/c46f2e3a-ed11-436... blob:https://www.fullerton.edu/c46f2e3a-ed11-4368-9600-d6da0d598ef1 — 200 — -1 B — 8 ms — blobhttps://assets-tracking.crazyegg.com/healthcheckassets-tracking.crazyegg.com/health... https://assets-tracking.crazyegg.com/healthcheck — 200 — 462 B — 11 ms — h2https://www.fullerton.edu/_resources/images/meet-our-alumni/kirsten-vangsness.jpg/_resources/images/meet-our-alumni/... https://www.fullerton.edu/_resources/images/meet-our-alumni/kirsten-vangsness.jpg — 200 — 148.2 KiB — 336 ms — http/1.1https://www.google.com/js/th/qKGyavTtqsN8WEgkipKf66gOrjuRyzmwbl6TXabwSno.jswww.google.com/js/th/qKGyavTtqsN8WE... https://www.google.com/js/th/qKGyavTtqsN8WEgkipKf66gOrjuRyzmwbl6TXabwSno.js — 200 — 23.2 KiB — 64 ms — h3https://tracking.crazyegg.com/clock?u=479029&st=216947&t=1776891688628&tk=6b65ca1d43253a657f90197195337736tracking.crazyegg.com/clock?u=47902... https://tracking.crazyegg.com/clock?u=479029&st=216947&t=1776891688628&tk=6b65ca1d43253a657f90197195337736 — 200 — 147 B — 80 ms — h2blob:https://www.fullerton.edu/9cde5b51-53d5-4069-b6f1-4038d66138a5www.fullerton.edu/9cde5b51-53d5-406... blob:https://www.fullerton.edu/9cde5b51-53d5-4069-b6f1-4038d66138a5 — -1 — 0 B — 0 ms — https://www.youtube.com/generate_204?cb1T6Awww.youtube.com/generate_204?cb1T6A https://www.youtube.com/generate_204?cb1T6A — 204 — 10 B — 28 ms — h3https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateITjnn-pa.googleapis.com/$rpc/google.i... https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT — 200 — 0 B — 114 ms — h2https://www.fullerton.edu/_resources/images/meet-our-alumni/joshua-gonzalez.jpg/_resources/images/meet-our-alumni/... https://www.fullerton.edu/_resources/images/meet-our-alumni/joshua-gonzalez.jpg — 200 — 97.0 KiB — 335 ms — http/1.1https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateITjnn-pa.googleapis.com/$rpc/google.i... https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT — 200 — 312 B — 37 ms — h2https://www.fullerton.edu/_resources/images/meet-our-alumni/christina-house.jpg/_resources/images/meet-our-alumni/... https://www.fullerton.edu/_resources/images/meet-our-alumni/christina-house.jpg — 200 — 78.1 KiB — 169 ms — http/1.1https://www.fullerton.edu/_resources/images/meet-our-alumni/omid-abtahi.jpg/_resources/images/meet-our-alumni/... https://www.fullerton.edu/_resources/images/meet-our-alumni/omid-abtahi.jpg — 200 — 68.7 KiB — 175 ms — http/1.1https://www.fullerton.edu/favicon.ico/favicon.ico https://www.fullerton.edu/favicon.ico — 200 — 1.7 KiB — 174 ms — http/1.1https://www.youtube.com/youtubei/v1/log_event?alt=jsonwww.youtube.com/youtubei/v1/log_eve... https://www.youtube.com/youtubei/v1/log_event?alt=json — 200 — 50 B — 33 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
73% of JavaScript execution is third-party
First-party Third-party 331ms · 353KB · $6/mo
Unattributable
Other
Optional
Execution 114ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 82ms
Transfer 176 KB
Unused 35%
Monthly Cost $1/mo
script.crazyegg.com
Other
Optional
Execution 79ms
Transfer 55 KB
Unused 53%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 56ms
Transfer 121 KB
Unused 53%
Monthly Cost $1/mo

73% 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

53% of script.crazyegg.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

53% 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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