Performance
· 15 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.
1.14 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.72 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
556 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.040
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.77 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.
10.13 s
Page Load Progression
566 ms
1.1 s 1.7 s
2.3 s 2.8 s 3.4 s 4.0 s
4.5 sFPage Weight BudgetAction6.8 MB transferred, 286 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
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
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5530ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.sas.com/en_us/home.html | 1543ms | 22ms | 1ms | 3rd |
| Unattributable | 988ms | 66ms | 0ms | 3rd |
| https://service.sas.com/scripts/js_includes_sp_libs_min.jsx?v=02-09-2026_2259&lp=Sat_Apr_18_06_54_43_PDT_2026&c=40_1064 | 475ms | 402ms | 12ms | 3rd |
| https://service.sas.com/uxasset/externals/@devsnc/library-uxf/index.jsdbx?sysparm_use_cache_buster=true&uxpcb=1776803391792 | 398ms | 380ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PWTVHH | 322ms | 263ms | 26ms | 3rd |
| https://www.sas.com/etc/clientlibs/global/foundation_foot.min.617372ca2c7770bcaa42214fb74d3369.js | 272ms | 157ms | 18ms | 3rd |
| https://script.crazyegg.com/pages/versioned/tracking-scripts/158692313dc4b9f2e28d9e9025e38d6b.js | 206ms | 115ms | 2ms | 3rd |
| https://script.crazyegg.com/pages/versioned/commontransformations-scripts/df706026807a27b189c4eeedc429ebbf.js | 155ms | 127ms | 6ms | 3rd |
| https://service.sas.com/scripts/dist/sp_min.jsx?v=02-09-2026_2259 | 117ms | 49ms | 64ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Z7MSTXQ65E&cx=c>m=4e64h1 | 115ms | 82ms | 22ms | 3rd |
Showing top 10 of 25 scripts
FJS BundlesAction92 scripts, 1.7 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://service.sas.com/scripts/dist/sp_min.jsx?v=02-09-2026_2259 | 424 KB | 216 KB (51%) | ✓ | 3rd |
| https://service.sas.com/uxasset/externals/ais-ux-bundle/index.jsdbx?sysparm_use_cache_buster=true&uxpcb=1776803391792 | 364 KB | 150 KB (41%) | ✓ | 3rd |
| https://service.sas.com/uxasset/externals/@devsnc/library-uxf/index.jsdbx?sysparm_use_cache_buster=true&uxpcb=1776803391792 | 103 KB | 80 KB (78%) | ✓ | 3rd |
| https://script.crazyegg.com/scripts/addons/1.0.146/survey.js | 100 KB | 74 KB (77%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Z7MSTXQ65E&cx=c>m=4e64h1 | 174 KB | 66 KB (38%) | ✓ | 3rd |
| https://global.oktacdn.com/okta-auth-js/5.0.0/okta-auth-js.min.js | 106 KB | 62 KB (59%) | ✓ | 3rd |
| https://service.sas.com/scripts/js_includes_sp_defer.js?v=02-09-2026_2259&sysparm_substitute=false | 85 KB | 61 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-10744442&cx=c>m=4e64h1 | 131 KB | 60 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-10707255&cx=c>m=4e64h1 | 129 KB | 60 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-10686030&cx=c>m=4e64h1 | 129 KB | 60 KB (47%) | ✓ | 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 InventoryAction286 resources · 6.8 MB · 1.7 MB savings availableFIX
~1.7 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 286 resources | 6.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction89 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
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
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 Loading9 fonts (276 KB)PASS
Web fonts
9
276 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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)
Fixing the unchecked items could save ~23 KB and ~46 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall286 requests over 38291msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.sas.com www.sas.com | Other | 1543ms | 151 KB | — | $20/mo | Costly |
Unattributable Unattributable | Other | 988ms | 0 KB | — | $13/mo | Costly |
service.sas.com service.sas.com | Other | 475ms | 106 KB | 42% | $6/mo | Costly |
service.sas.com service.sas.com | Other | 398ms | 103 KB | 78% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 322ms | 202 KB | 26% | $4/mo | Costly |
www.sas.com www.sas.com | Other | 272ms | 119 KB | 40% | $4/mo | Costly |
script.crazyegg.com script.crazyegg.com | Other | 206ms | 23 KB | — | $3/mo | Costly |
script.crazyegg.com script.crazyegg.com | Other | 155ms | 72 KB | 41% | $2/mo | Optional |
service.sas.com service.sas.com | Other | 117ms | 424 KB | 51% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 115ms | 174 KB | 38% | $2/mo | Optional |
www.sas.com www.sas.com | Other | 97ms | 0 KB | 66% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 86ms | 146 KB | 38% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 74ms | 131 KB | 45% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 70ms | 47 KB | — | $1/mo | Optional |
consent.trustarc.com consent.trustarc.com | Other | 70ms | 13 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 66ms | 131 KB | 41% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 58ms | 131 KB | 46% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 56ms | 131 KB | 45% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 53ms | 129 KB | 47% | $1/mo | Optional |
global.oktacdn.com global.oktacdn.com | Other | 53ms | 106 KB | 59% | $1/mo | Optional |
Twitter/X Pixel static.ads-twitter.com | Advertising | 53ms | 13 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 52ms | 131 KB | 46% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 51ms | 129 KB | 47% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 51ms | 97 KB | 33% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 50ms | 129 KB | 47% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.sas.com adds 1543ms and costs ~$20/month
- Unattributable adds 988ms and costs ~$13/month
- service.sas.com adds 475ms and costs ~$6/month
- service.sas.com adds 398ms and costs ~$5/month
- Google Tag Manager adds 322ms and costs ~$4/month
- www.sas.com adds 272ms and costs ~$4/month
- script.crazyegg.com adds 206ms 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
www.sas.com takes 1543ms 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 988ms 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
service.sas.com takes 475ms 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
service.sas.com takes 398ms 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
78% of service.sas.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 322ms 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.sas.com takes 272ms 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 206ms 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 service.sas.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
66% of www.sas.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
59% of global.oktacdn.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