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.
3.42 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.95 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.01 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.031
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.91 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.
26.56 s
Page Load Progression
FPage Weight BudgetAction3.9 MB transferred, 107 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
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
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 CostAction5531ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 654ms | 39ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PFGCKCV | 548ms | 445ms | 62ms | 3rd |
| https://www.pdx.edu/ | 416ms | 17ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16844257518&cx=c>m=4e64k0h1 | 380ms | 281ms | 98ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6RFJSZC9D9&cx=c>m=4e64k0h1 | 292ms | 247ms | 42ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-10977908268&cx=c>m=4e64k0h1 | 271ms | 204ms | 33ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PFF5F2VD | 267ms | 223ms | 41ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17686537092 | 240ms | 205ms | 34ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-815264471&cx=c>m=4e64k0h1 | 240ms | 198ms | 40ms | 3rd |
| https://scripts.clarity.ms/0.8.60-beta/clarity.js | 225ms | 197ms | 8ms | 3rd |
Showing top 10 of 24 scripts
FJS BundlesAction37 scripts, 941 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=AW-17686537092&cx=c>m=4e64k0 | 143 KB | 106 KB (74%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6RFJSZC9D9&cx=c>m=4e64k0h1 | 171 KB | 65 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PFF5F2VD | 131 KB | 62 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1011025410&cx=c>m=4e64k0h1 | 145 KB | 62 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16512011826&cx=c>m=4e64k0h1 | 144 KB | 62 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-10977908268&cx=c>m=4e64k0h1 | 147 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16758402633&cx=c>m=4e64k0h1 | 137 KB | 61 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-815264471&cx=c>m=4e64k0h1 | 146 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16844257518&cx=c>m=4e64k0h1 | 146 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-794690799&cx=c>m=4e64k0h1 | 138 KB | 60 KB (44%) | ✓ | 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 InventoryAction107 resources · 3.9 MB · 941 KB savings availableFIX
~941.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 107 resources | 3.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction25 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
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 (184 KB)PASS
Web fonts
6
184 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 HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall107 requests over 3786msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 654ms | 0 KB | — | $9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 548ms | 179 KB | 34% | $7/mo | Costly |
www.pdx.edu www.pdx.edu | Other | 416ms | 161 KB | — | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 380ms | 146 KB | 42% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 292ms | 171 KB | 38% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 271ms | 147 KB | 42% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 267ms | 131 KB | 48% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 240ms | 143 KB | 42% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 240ms | 146 KB | 42% | $3/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 225ms | 25 KB | — | $3/mo | Costly |
www.pdx.edu www.pdx.edu | Other | 224ms | 34 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 213ms | 145 KB | 43% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 211ms | 137 KB | 45% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 200ms | 144 KB | 43% | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 199ms | 138 KB | 44% | $3/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 142ms | 47 KB | — | $2/mo | Optional |
unpkg unpkg.com | CDN | 135ms | 3 KB | — | $2/mo | Optional |
Hotjar script.hotjar.com | Session Replay | 122ms | 57 KB | 74% | $2/mo | Optional |
sc-static.net sc-static.net | Other | 120ms | 25 KB | — | $2/mo | Optional |
pm.geniusmonkey.com pm.geniusmonkey.com | Other | 119ms | 8 KB | — | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 117ms | 97 KB | 33% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 80ms | 17 KB | — | $1/mo | Optional |
www.pdx.edu www.pdx.edu | Other | 59ms | 53 KB | 73% | $1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 58ms | 19 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 654ms and costs ~$9/month
- Google Tag Manager adds 548ms and costs ~$7/month
- www.pdx.edu adds 416ms and costs ~$6/month
- Google Tag Manager adds 380ms and costs ~$5/month
- Google Tag Manager adds 292ms and costs ~$4/month
- Google Tag Manager adds 271ms and costs ~$4/month
- Google Tag Manager adds 267ms and costs ~$4/month
- Google Tag Manager adds 240ms and costs ~$3/month
- Google Tag Manager adds 240ms and costs ~$3/month
- Microsoft Clarity adds 225ms and costs ~$3/month
- www.pdx.edu adds 224ms and costs ~$3/month
- Google Tag Manager adds 213ms and costs ~$3/month
- Google Tag Manager adds 211ms 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 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 548ms 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.pdx.edu takes 416ms 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 380ms 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 292ms 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 271ms 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 267ms 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 240ms 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 240ms 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 225ms 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.pdx.edu 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 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
Google Tag Manager takes 211ms 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
74% of Hotjar'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
73% of www.pdx.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