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.
3.34 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.96 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.11 s
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.
3.99 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.
27.92 s
Page Load Progression
FPage Weight BudgetAction5.3 MB transferred, 135 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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5367ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 755ms | 126ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TV3GXX2 | 428ms | 358ms | 54ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 395ms | 264ms | 128ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-G21GKGZWMQ&cx=c>m=4e64k1 | 320ms | 263ms | 32ms | 3rd |
| https://www.umkc.edu/v2/js/main.js?ver=0302202609150232 | 280ms | 78ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-678792573&cx=c>m=4e64k1 | 279ms | 226ms | 51ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ED3TE3PHG0&cx=c>m=4e64k1 | 246ms | 208ms | 35ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16935672048&cx=c>m=4e64k1 | 224ms | 162ms | 61ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-08VPXRS2FH&cx=c>m=4e64k1 | 222ms | 173ms | 47ms | 3rd |
| https://scripts.clarity.ms/0.8.59/clarity.js | 210ms | 186ms | 6ms | 3rd |
Showing top 10 of 26 scripts
FJS BundlesAction52 scripts, 917 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOA.js | 117 KB | 91 KB (78%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16935672048&cx=c>m=4e64k1 | 143 KB | 69 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ED3TE3PHG0&cx=c>m=4e64k1 | 172 KB | 67 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-08VPXRS2FH&cx=c>m=4e64k1 | 151 KB | 66 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-G21GKGZWMQ&cx=c>m=4e64k1 | 158 KB | 65 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TV3GXX2 | 184 KB | 64 KB (35%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 122 KB | 63 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-11020655&cx=c>m=4e64k1 | 129 KB | 63 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11319596247&cx=c>m=4e64k1 | 143 KB | 62 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-9145154&cx=c>m=4e64k1 | 129 KB | 61 KB (47%) | ✓ | 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 InventoryAction135 resources · 5.3 MB · 917 KB savings availableFIX
~916.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 135 resources | 5.3 MiB | ||||||
BImage Optimization22 images, 0 KB saveableREVIEW
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 Loading3 fonts (102 KB)PASS
Web fonts
3
102 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=172800 (2 days)PASS
max-age=172800
| Directive | Value | Meaning |
|---|---|---|
| max-age | 172800 | Cache for 2 days |
Network Waterfall135 requests over 6685msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 755ms | 0 KB | — | $10/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 428ms | 184 KB | 35% | $6/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 395ms | 122 KB | 52% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 320ms | 158 KB | 41% | $4/mo | Costly |
www.umkc.edu www.umkc.edu | Other | 280ms | 49 KB | 70% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 279ms | 140 KB | 43% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 246ms | 172 KB | 39% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 224ms | 143 KB | 48% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 222ms | 151 KB | 44% | $3/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 210ms | 26 KB | — | $3/mo | Costly |
www.umkc.edu www.umkc.edu | Other | 205ms | 25 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 190ms | 143 KB | 43% | $3/mo | Optional |
go.graduate.umkc.edu go.graduate.umkc.edu | Other | 190ms | 4 KB | — | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 185ms | 129 KB | 47% | $2/mo | Optional |
widget.freshworks.com widget.freshworks.com | Other | 182ms | 104 KB | 44% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 150ms | 129 KB | 48% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 145ms | 46 KB | — | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 130ms | 97 KB | 34% | $2/mo | Optional |
sc-static.net sc-static.net | Other | 103ms | 25 KB | — | $1/mo | Optional |
calendar.umkc.edu calendar.umkc.edu | Other | 92ms | 36 KB | 57% | $1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 88ms | 19 KB | — | $1/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 85ms | 117 KB | 78% | $1/mo | Optional |
tags.srv.stackadapt.com tags.srv.stackadapt.com | Other | 85ms | 8 KB | — | $1/mo | Optional |
s.adroll.com s.adroll.com | Other | 65ms | 31 KB | 79% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 57ms | 16 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 56ms | 17 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 755ms and costs ~$10/month
- Google Tag Manager adds 428ms and costs ~$6/month
- analytics.tiktok.com adds 395ms and costs ~$5/month
- Google Tag Manager adds 320ms and costs ~$4/month
- www.umkc.edu adds 280ms and costs ~$4/month
- Google Tag Manager adds 279ms and costs ~$4/month
- Google Tag Manager adds 246ms and costs ~$3/month
- Google Tag Manager adds 224ms and costs ~$3/month
- Google Tag Manager adds 222ms and costs ~$3/month
- Microsoft Clarity adds 210ms and costs ~$3/month
- www.umkc.edu adds 205ms 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
Unattributable takes 755ms 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 428ms 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
analytics.tiktok.com takes 395ms 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
52% of analytics.tiktok.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
Google Tag Manager takes 320ms 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
www.umkc.edu takes 280ms 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
70% of www.umkc.edu'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
Google Tag Manager takes 279ms 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 246ms 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 224ms 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 222ms 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
Microsoft Clarity takes 210ms 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
www.umkc.edu takes 205ms 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
57% of calendar.umkc.edu'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
78% of analytics.tiktok.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
79% of s.adroll.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