Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
7.86 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
18.37 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.74 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.041
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.86 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.
23.73 s
Page Load Progression
FPage Weight BudgetAction5.7 MB transferred, 91 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
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.
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.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5404ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.unt.edu/ | 1075ms | 24ms | 9ms | 3rd |
| Unattributable | 856ms | 32ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5ZJML75 | 691ms | 580ms | 93ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-33TTT716N7&cx=c>m=4e64h1 | 631ms | 470ms | 89ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17878439880&cx=c>m=4e64h1 | 484ms | 362ms | 112ms | 3rd |
| https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/js/all.min.js | 453ms | 132ms | 241ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1036238582&cx=c>m=4e64h1 | 361ms | 293ms | 66ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 214ms | 157ms | 55ms | 3rd |
| https://cdn.jsdelivr.net/npm/jquery@3.6/dist/jquery.min.js | 198ms | 120ms | 15ms | 3rd |
| https://connect.facebook.net/signals/config/671168089658083?v=2.9.303&r=stable&domain=www.unt.edu&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168 | 158ms | 124ms | 32ms | 3rd |
Showing top 10 of 13 scripts
DJS BundlesAction31 scripts, 432 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://siteimproveanalytics.com/js/siteanalyze_8543.js | 92 KB | 73 KB (80%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-33TTT716N7&cx=c>m=4e64h1 | 179 KB | 69 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5ZJML75 | 166 KB | 65 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1036238582&cx=c>m=4e64h1 | 146 KB | 63 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17878439880&cx=c>m=4e64h1 | 144 KB | 61 KB (43%) | ✓ | 3rd |
| https://www.clickcease.com/monitor/stat.js | 44 KB | 38 KB (90%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 36 KB (38%) | ✓ | 3rd |
| https://capi-automation.s3.us-east-2.amazonaws.com/public/client_js/capiParamBuilder/clientParamBuilder.bundle.js | 63 KB | 25 KB (41%) | ✓ | 3rd |
| https://omni-templates.unt.edu/_resources/js/assets/height-width.js | 1 KB | — | ✓ | 3rd |
| https://cdn.jsdelivr.net/npm/jquery@3.6/dist/jquery.min.js | 32 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction91 resources · 5.7 MB · 432 KB savings availableFIX
~431.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 91 resources | 5.7 MiB | ||||||
CImage OptimizationAction33 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading7 fonts (340 KB)PASS
Web fonts
7
340 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~127 KB and ~254 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=900 (15 minutes)PASS
max-age=900
| Directive | Value | Meaning |
|---|---|---|
| max-age | 900 | Cache for 15 minutes |
Network Waterfall91 requests over 4123msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.unt.edu www.unt.edu | Other | 1075ms | 69 KB | — | $14/mo | Costly |
Unattributable Unattributable | Other | 856ms | 0 KB | — | $11/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 691ms | 166 KB | 40% | $9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 631ms | 179 KB | 38% | $8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 484ms | 144 KB | 43% | $6/mo | Costly |
cdnjs cdnjs.cloudflare.com | CDN | 453ms | 396 KB | — | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 361ms | 146 KB | 43% | $5/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 214ms | 97 KB | 38% | $3/mo | Costly |
jsDelivr cdn.jsdelivr.net | CDN | 198ms | 32 KB | — | $3/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 158ms | 45 KB | — | $2/mo | Optional |
siteimproveanalytics.com siteimproveanalytics.com | Other | 138ms | 92 KB | 80% | $2/mo | Optional |
omni-templates.unt.edu omni-templates.unt.edu | Other | 80ms | 64 KB | — | $1/mo | Optional |
www.clickcease.com www.clickcease.com | Other | 67ms | 44 KB | 90% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.unt.edu adds 1075ms and costs ~$14/month
- Unattributable adds 856ms and costs ~$11/month
- Google Tag Manager adds 691ms and costs ~$9/month
- Google Tag Manager adds 631ms and costs ~$8/month
- Google Tag Manager adds 484ms and costs ~$6/month
- cdnjs adds 453ms and costs ~$6/month
- Google Tag Manager adds 361ms and costs ~$5/month
- Facebook Pixel adds 214ms and costs ~$3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.unt.edu takes 1075ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 856ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 691ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 631ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 484ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cdnjs takes 453ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 361ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 214ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
80% of siteimproveanalytics.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
90% of www.clickcease.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev