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.
6.68 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
37.09 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.02 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.
13.82 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.
38.21 s
Page Load Progression
FPage Weight BudgetAction6.2 MB transferred, 163 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
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
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
FJS Execution CostAction7169ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1138ms | 132ms | 0ms | 3rd |
| https://drexel.edu/ | 980ms | 97ms | 3ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-TJCKC2 | 780ms | 677ms | 75ms | 3rd |
| https://drexel.edu/carbon/js/index-generated.js | 606ms | 522ms | 66ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP | 542ms | 463ms | 61ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c>m=4e64h1 | 317ms | 275ms | 40ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c>m=4e64h1 | 257ms | 213ms | 41ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 242ms | 184ms | 54ms | 3rd |
| https://scripts.clarity.ms/0.8.60-beta/clarity.js | 219ms | 194ms | 9ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c>m=4e64h1 | 219ms | 177ms | 40ms | 3rd |
Showing top 10 of 25 scripts
FJS BundlesAction47 scripts, 937 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://drexel.edu/carbon/js/libraries-generated.js | 444 KB | 237 KB (54%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-H9NXSPBKEB&cx=c>m=4e64h1 | 151 KB | 69 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c>m=4e64h1 | 134 KB | 67 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c>m=4e64h1 | 172 KB | 66 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c>m=4e64h1 | 152 KB | 65 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP | 178 KB | 64 KB (36%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WN3NC5R | 125 KB | 64 KB (51%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 122 KB | 63 KB (52%) | ✓ | 3rd |
| https://drexel.edu/carbon/js/index-generated.js | 108 KB | 60 KB (59%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c>m=4e64h1 | 129 KB | 57 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 InventoryAction163 resources · 6.2 MB · 937 KB savings availableFIX
~937.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 163 resources | 6.2 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
BThird-Party Impact43% third-party, 0 ms blockingREVIEW
CImage OptimizationAction33 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
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
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
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 Loading19 fonts (748 KB)PASS
Web fonts
19
748 KB total
Render-blocking
0
of 19
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 Waterfall163 requests over 3900msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1138ms | 0 KB | — | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 780ms | 200 KB | 27% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 542ms | 178 KB | 36% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 317ms | 172 KB | 38% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 257ms | 152 KB | 43% | $1/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 242ms | 122 KB | 52% | $1/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 219ms | 25 KB | — | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 219ms | 134 KB | 50% | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 217ms | 151 KB | 46% | $1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 211ms | 129 KB | 44% | $1/mo | Costly |
sc-static.net sc-static.net | Other | 177ms | 25 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 143ms | 47 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 133ms | 125 KB | 51% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 122ms | 97 KB | 34% | $1/mo | Optional |
Twitter/X Embed platform.twitter.com | Social | 112ms | 27 KB | — | $1/mo | Optional |
tr.snapchat.com tr.snapchat.com | Other | 109ms | 0 KB | — | $1/mo | Optional |
app.heyhalda.com app.heyhalda.com | Other | 106ms | 2 KB | — | $1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 77ms | 19 KB | — | $0/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 69ms | 19 KB | — | $0/mo | Optional |
js.adsrvr.org js.adsrvr.org | Other | 66ms | 12 KB | — | $0/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 61ms | 21 KB | — | $0/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 56ms | 40 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1138ms and costs ~$7/month
- Google Tag Manager adds 780ms and costs ~$4/month
- Google Tag Manager adds 542ms and costs ~$3/month
- Google Tag Manager adds 317ms and costs ~$2/month
- Google Tag Manager adds 257ms and costs ~$1/month
- analytics.tiktok.com adds 242ms and costs ~$1/month
- Microsoft Clarity adds 219ms and costs ~$1/month
- Google Tag Manager adds 219ms and costs ~$1/month
- Google Tag Manager adds 217ms and costs ~$1/month
- Google Tag Manager adds 211ms and costs ~$1/month
75% 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 1138ms 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 780ms 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 542ms 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 317ms 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 257ms 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 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
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
Microsoft Clarity takes 219ms 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 219ms 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 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
Google Tag Manager takes 217ms 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
51% 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