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.
4.22 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.04 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.78 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.
6.53 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.
17.86 s
Page Load Progression
FPage Weight BudgetAction8.2 MB transferred, 106 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 CostAction5800ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ncsu.edu/ | 1124ms | 78ms | 9ms | 3rd |
| Unattributable | 899ms | 43ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-3BCCQK39HR | 574ms | 451ms | 74ms | 3rd |
| https://www.ncsu.edu/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 494ms | 232ms | 14ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-786262903&cx=c>m=4e64k0h2 | 420ms | 292ms | 68ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-E68CCDKNRD&cx=c>m=4e64k0h2 | 412ms | 314ms | 91ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 377ms | 328ms | 22ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-52F226 | 308ms | 233ms | 66ms | 3rd |
| https://scripts.clarity.ms/0.8.59-beta/clarity.js | 281ms | 211ms | 12ms | 3rd |
| https://www.ncsu.edu/wp-content/themes/ncstate-theme-v4/dist/scripts/main.js?ver=4.15.1 | 190ms | 84ms | 25ms | 3rd |
Showing top 10 of 17 scripts
DJS BundlesAction34 scripts, 444 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-52F226 | 159 KB | 83 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-E68CCDKNRD&cx=c>m=4e64k0h2 | 173 KB | 71 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-786262903&cx=c>m=4e64k0h2 | 172 KB | 68 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-3BCCQK39HR | 177 KB | 68 KB (38%) | ✓ | 3rd |
| https://www.ncsu.edu/wp-content/plugins/instagram-feed-pro/js/sbi-scripts.min.js?ver=6.6.0 | 70 KB | 46 KB (67%) | ✓ | 3rd |
| https://www.ncsu.edu/wp-content/themes/ncstate-theme-v4/dist/scripts/main.js?ver=4.15.1 | 64 KB | 45 KB (71%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 32 KB (34%) | ✓ | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 55 KB | 29 KB (53%) | ✓ | 3rd |
| https://www.ncsu.edu/wp-content/themes/ncstate-theme-v4/dist/scripts/search-overlay.js?ver=4.15.1 | 1 KB | — | ✓ | 3rd |
| https://snap.licdn.com/li.lms-analytics/insight.min.js | 19 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 InventoryAction106 resources · 8.2 MB · 444 KB savings availableFIX
~443.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 106 resources | 8.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization24 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 Loading6 fonts (89 KB)PASS
Web fonts
6
89 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 Hints6 hints, 0 missing preconnectsPASS
Current Resource Hints
6 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall106 requests over 4968msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ncsu.edu www.ncsu.edu | Other | 1124ms | 41 KB | — | $15/mo | Costly |
Unattributable Unattributable | Other | 899ms | 0 KB | — | $12/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 574ms | 177 KB | 38% | $8/mo | Costly |
www.ncsu.edu www.ncsu.edu | Other | 494ms | 30 KB | — | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 420ms | 172 KB | 40% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 412ms | 173 KB | 41% | $5/mo | Costly |
script.crazyegg.com script.crazyegg.com | Other | 377ms | 55 KB | 53% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 308ms | 159 KB | 53% | $4/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 281ms | 26 KB | — | $4/mo | Costly |
www.ncsu.edu www.ncsu.edu | Other | 190ms | 64 KB | 71% | $3/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 180ms | 46 KB | — | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 175ms | 97 KB | 34% | $2/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 113ms | 19 KB | — | $2/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 75ms | 23 KB | — | $1/mo | Optional |
www.ncsu.edu www.ncsu.edu | Other | 71ms | 70 KB | 67% | $1/mo | Optional |
www.ncsu.edu www.ncsu.edu | Other | 53ms | 25 KB | — | $1/mo | Optional |
www.ncsu.edu www.ncsu.edu | Other | 52ms | 15 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.ncsu.edu adds 1124ms and costs ~$15/month
- Unattributable adds 899ms and costs ~$12/month
- Google Tag Manager adds 574ms and costs ~$8/month
- www.ncsu.edu adds 494ms and costs ~$7/month
- Google Tag Manager adds 420ms and costs ~$6/month
- Google Tag Manager adds 412ms and costs ~$5/month
- script.crazyegg.com adds 377ms and costs ~$5/month
- Google Tag Manager adds 308ms and costs ~$4/month
- Microsoft Clarity adds 281ms and costs ~$4/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.ncsu.edu takes 1124ms 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 899ms 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 574ms 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.ncsu.edu takes 494ms 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 420ms 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 412ms 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
script.crazyegg.com takes 377ms 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
53% of script.crazyegg.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 308ms 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
53% 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
Microsoft Clarity takes 281ms 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
71% of www.ncsu.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
67% of www.ncsu.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