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.
4.71 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.64 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.34 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.019
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.71 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.
23.93 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 175 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
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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
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 CostAction4564ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.wvu.edu/ | 967ms | 394ms | 2ms | 3rd |
| Unattributable | 654ms | 55ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WPD5W8R | 524ms | 452ms | 53ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16725031484&cx=c>m=4e64k0 | 330ms | 235ms | 93ms | 3rd |
| https://www.redditstatic.com/ads/pixel.js?pixel_id=a2_irlx7ef5q8a6 | 261ms | 238ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DPWJTYWY9Q&cx=c>m=4e64k0 | 255ms | 215ms | 36ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-833670156&cx=c>m=4e64k0 | 248ms | 204ms | 43ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-885374832&cx=c>m=4e64k0 | 238ms | 200ms | 36ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-58MC60LMPE&cx=c>m=4e64k0 | 204ms | 167ms | 35ms | 3rd |
| https://www.wvu.edu/scss/site.min.ff702fc4e7c98e254bfb56a77811fadbd53f48c234ee9cab0fbb511cfcf1853e.css | 179ms | 0ms | 0ms | 3rd |
Showing top 10 of 16 scripts
DJS BundlesAction41 scripts, 496 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-58MC60LMPE&cx=c>m=4e64k0 | 172 KB | 70 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DPWJTYWY9Q&cx=c>m=4e64k0 | 174 KB | 68 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-833670156&cx=c>m=4e64k0 | 145 KB | 62 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-16245128&cx=c>m=4e64k0 | 129 KB | 61 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16725031484&cx=c>m=4e64k0 | 144 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WPD5W8R | 197 KB | 59 KB (30%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-885374832&cx=c>m=4e64k0 | 144 KB | 56 KB (39%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 3rd |
| https://capi-automation.s3.us-east-2.amazonaws.com/public/client_js/capiParamBuilder/clientParamBuilder.bundle.js | 63 KB | 25 KB (41%) | ✓ | 3rd |
| https://www.google-analytics.com/analytics.js | 21 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 InventoryAction175 resources · 2.7 MB · 496 KB savings availableFIX
~495.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 175 resources | 2.7 MiB | ||||||
CImage OptimizationAction48 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
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 Loading4 fonts (216 KB)PASS
Web fonts
4
216 KB total
Render-blocking
0
of 4
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 Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=300 (5 minutes)PASS
public, max-age=300, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 300 | Cache for 5 minutes |
| must-revalidate | — | Must recheck with server after expiry |
Network Waterfall175 requests over 5006msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.wvu.edu www.wvu.edu | Other | 967ms | 10 KB | — | $3/mo | Costly |
Unattributable Unattributable | Other | 654ms | 0 KB | — | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 524ms | 197 KB | 30% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 330ms | 144 KB | 42% | $1/mo | Costly |
www.redditstatic.com www.redditstatic.com | Other | 261ms | 19 KB | — | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 255ms | 174 KB | 39% | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 248ms | 145 KB | 42% | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 238ms | 144 KB | 39% | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 204ms | 172 KB | 41% | $1/mo | Costly |
www.wvu.edu www.wvu.edu | Other | 179ms | 202 KB | — | $1/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 167ms | 26 KB | — | $1/mo | Optional |
sc-static.net sc-static.net | Other | 148ms | 25 KB | — | $0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 134ms | 129 KB | 47% | $0/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 96ms | 97 KB | 35% | $0/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 91ms | 45 KB | — | $0/mo | Optional |
tags.srv.stackadapt.com tags.srv.stackadapt.com | Other | 68ms | 8 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- www.wvu.edu adds 967ms and costs ~$3/month
- Unattributable adds 654ms and costs ~$2/month
- Google Tag Manager adds 524ms and costs ~$2/month
- Google Tag Manager adds 330ms and costs ~$1/month
- www.redditstatic.com adds 261ms and costs ~$1/month
- Google Tag Manager adds 255ms and costs ~$1/month
- Google Tag Manager adds 248ms and costs ~$1/month
- Google Tag Manager adds 238ms and costs ~$1/month
- Google Tag Manager adds 204ms and costs ~$1/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.wvu.edu takes 967ms 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 654ms 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 524ms 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 330ms 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.redditstatic.com takes 261ms 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 255ms 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 248ms 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 238ms 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 204ms 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