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.
5.13 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
26.55 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.54 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
23.52 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.
26.61 s
Page Load Progression
1.8 s 3.5 s 5.3 s 7.0 s 8.8 s 10.5 s
12.3 s
14.0 sFPage Weight BudgetAction2.8 MB transferred, 121 requestsFIX
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 CostAction5828ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdnjs.cloudflare.com/ajax/libs/require.js/2.2.0/require.min.js | 1024ms | 685ms | 2ms | 3rd |
| Unattributable | 702ms | 96ms | 0ms | 3rd |
| https://www.ncaa.org/ | 423ms | 30ms | 35ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17553948878&cx=c>m=4e64k1 | 302ms | 268ms | 30ms | 3rd |
| https://transcend-cdn.com/cm/30fbff84-b0e3-4e26-9084-0b5158fdb1ed/gpp.js | 291ms | 207ms | 62ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-R7QEB3YF8F | 273ms | 233ms | 38ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Y29PC3P5S9&cx=c>m=4e64k1 | 259ms | 220ms | 36ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js | 245ms | 204ms | 35ms | 3rd |
| https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js | 242ms | 119ms | 39ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M6RJ333V | 235ms | 195ms | 36ms | 3rd |
Showing top 10 of 24 scripts
FJS BundlesAction41 scripts, 1.0 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-R7QEB3YF8F&cx=c>m=4e64k1 | 176 KB | 114 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SHQ10M91ZV&cx=c>m=4e64k1 | 176 KB | 114 KB (65%) | ✓ | 3rd |
| https://dbukjj6eu5tsf.cloudfront.net/assets.sidearmsports.com/responsive/js/bundle.1739916735684.js | 140 KB | 98 KB (70%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js | 106 KB | 82 KB (78%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-R7QEB3YF8F | 175 KB | 69 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M6RJ333V | 146 KB | 66 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KB8J6S5J | 127 KB | 63 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TW6R675 | 121 KB | 63 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Y29PC3P5S9&cx=c>m=4e64k1 | 155 KB | 63 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-15770876&cx=c>m=4e64k1 | 129 KB | 62 KB (48%) | ✓ | 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 InventoryAction121 resources · 2.8 MB · 1.0 MB savings availableFIX
~1.0 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 121 resources | 2.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization21 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
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 Loading6 fonts (198 KB)PASS
Web fonts
6
198 KB total
Render-blocking
0
of 6
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 Hints11 hints, 0 missing preconnectsPASS
Current Resource Hints
11 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall121 requests over 15091msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdnjs cdnjs.cloudflare.com | CDN | 1024ms | 8 KB | — | $14/mo | Costly |
Unattributable Unattributable | Other | 702ms | 0 KB | — | $9/mo | Costly |
www.ncaa.org www.ncaa.org | Other | 423ms | 29 KB | — | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 302ms | 144 KB | 37% | $4/mo | Costly |
transcend-cdn.com transcend-cdn.com | Other | 291ms | 152 KB | 15% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 273ms | 175 KB | 39% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 259ms | 155 KB | 40% | $3/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 245ms | 110 KB | 50% | $3/mo | Costly |
cdnjs cdnjs.cloudflare.com | CDN | 242ms | 29 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 235ms | 146 KB | 45% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 229ms | 127 KB | 50% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 213ms | 131 KB | 44% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 185ms | 129 KB | 48% | $2/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 178ms | 99 KB | 39% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 166ms | 121 KB | 52% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 147ms | 97 KB | 35% | $2/mo | Optional |
dbukjj6eu5tsf.cloudfront.net dbukjj6eu5tsf.cloudfront.net | Other | 120ms | 140 KB | 70% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 119ms | 45 KB | — | $2/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 94ms | 106 KB | 78% | $1/mo | Optional |
transcend-cdn.com transcend-cdn.com | Other | 94ms | 60 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 78ms | 176 KB | 65% | $1/mo | Optional |
cdnjs cdnjs.cloudflare.com | CDN | 77ms | 3 KB | — | $1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 67ms | 21 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 62ms | 176 KB | 65% | $1/mo | Optional |
These scripts may cost more than they're worth
- cdnjs adds 1024ms and costs ~$14/month
- Unattributable adds 702ms and costs ~$9/month
- www.ncaa.org adds 423ms and costs ~$6/month
- Google Tag Manager adds 302ms and costs ~$4/month
- transcend-cdn.com adds 291ms and costs ~$4/month
- Google Tag Manager adds 273ms and costs ~$4/month
- Google Tag Manager adds 259ms and costs ~$3/month
- analytics.tiktok.com adds 245ms and costs ~$3/month
- cdnjs adds 242ms and costs ~$3/month
- Google Tag Manager adds 235ms and costs ~$3/month
- Google Tag Manager adds 229ms and costs ~$3/month
- Google Tag Manager adds 213ms 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
cdnjs takes 1024ms 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 702ms 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.ncaa.org takes 423ms 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 302ms 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
transcend-cdn.com takes 291ms 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 273ms 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 259ms 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 245ms 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
50% 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
cdnjs takes 242ms 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 235ms 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 229ms 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 213ms 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 Google Tag Manager'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
70% of dbukjj6eu5tsf.cloudfront.net'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
65% of Google Tag Manager'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
65% of Google Tag Manager'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