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.
3.85 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
13.99 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
366 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.065
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.74 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.
15.38 s
Page Load Progression
DPage Weight BudgetAction2.4 MB transferred, 99 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2987ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.wellsfargo.com/zd-AenxJAYnb/NpD_oJg4oT/_v/wEiambVzfVXmhc/MHNfInI/HRM3CjY/5OUIB | 693ms | 616ms | 42ms | 3rd |
| Unattributable | 585ms | 127ms | 0ms | 3rd |
| https://www.wellsfargo.com/ | 539ms | 62ms | 4ms | 3rd |
| https://static.wellsfargo.com/assets/js/pcmp/prod/wellsfargo.com/scripttemplates/202507.1.0/otBannerSdk.js | 232ms | 154ms | 39ms | 3rd |
| https://c1.wfinterface.com/mt/shared/gbx/olb/v6/detector-dom.min.js | 229ms | 165ms | 42ms | 3rd |
| https://www.wellsfargo.com/ui/javascript/homepage-ui/ps-homepage.91bc85b2c88dd599ad45.js | 184ms | 146ms | 33ms | 3rd |
| https://connect.secure.wellsfargo.com/accounts/static/7M/accounts/short/accounts-cache.js | 156ms | 6ms | 0ms | 3rd |
| https://www.wellsfargo.com/ui/javascript/homepage-ui/homepage_iaoffer.902eb03c43b93ddf930c.js | 106ms | 84ms | 12ms | 3rd |
| https://c1.wfinterface.com/mt/shared/aep/alloy.js | 93ms | 79ms | 12ms | 3rd |
| https://c1.wfinterface.com/mt/hp/launch.js | 86ms | 62ms | 19ms | 3rd |
Showing top 10 of 11 scripts
DPage Weight InventoryAction99 resources · 2.4 MB · 237 KB savings availableFIX
~237.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 99 resources | 2.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization35 images, 0 KB saveableREVIEW
CJS BundlesAction19 scripts, 237 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://c1.wfinterface.com/mt/shared/gbx/olb/v6/detector-dom.min.js | 151 KB | 82 KB (54%) | ✓ | 3rd |
| https://static.wellsfargo.com/assets/js/pcmp/prod/wellsfargo.com/scripttemplates/202507.1.0/otBannerSdk.js | 120 KB | 62 KB (52%) | ✓ | 3rd |
| https://www.wellsfargo.com/zd-AenxJAYnb/NpD_oJg4oT/_v/wEiambVzfVXmhc/MHNfInI/HRM3CjY/5OUIB | 183 KB | 37 KB (20%) | ✓ | 3rd |
| https://www.wellsfargo.com/ui/javascript/homepage-ui/ps-homepage.91bc85b2c88dd599ad45.js | 67 KB | 35 KB (53%) | ✓ | 3rd |
| https://www.wellsfargo.com/ui/javascript/homepage-ui/homepage_iaoffer.902eb03c43b93ddf930c.js | 44 KB | 21 KB (48%) | ✓ | 3rd |
| https://connect.secure.wellsfargo.com/accounts/static/7M/accounts/short/accounts-cache.js | 1 KB | — | ✓ | 3rd |
| https://connect.secure.wellsfargo.com/accounts/static/7M/accounts/public/js/wfui.d384026f59bd55d40255.js | 345 KB | — | ✓ | 3rd |
| https://static.wellsfargo.com/assets/js/pcmp/prod/wellsfargo.com/scripttemplates/otSDKStub.js | 9 KB | — | ✓ | 3rd |
| https://static.wellsfargo.com/assets/js/wfui/appdynamics/appdEUMConfig.js | 1 KB | — | ✓ | 3rd |
| https://connect.secure.wellsfargo.com/accounts/static/7M/accounts/public/js/runtime.c3ef36c947cf23ac1ab6.js | 5 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
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 (88 KB)PASS
Web fonts
4
88 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 Hints8 hints, 0 missing preconnectsPASS
Current Resource Hints
8 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall99 requests over 2685msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.wellsfargo.com www.wellsfargo.com | Other | 693ms | 1 KB | 20% | $12/mo | Costly |
Unattributable Unattributable | Other | 585ms | 0 KB | — | $10/mo | Costly |
www.wellsfargo.com www.wellsfargo.com | Other | 539ms | 21 KB | — | $9/mo | Costly |
static.wellsfargo.com static.wellsfargo.com | Other | 232ms | 120 KB | 52% | $4/mo | Costly |
c1.wfinterface.com c1.wfinterface.com | Other | 229ms | 151 KB | 54% | $4/mo | Costly |
www.wellsfargo.com www.wellsfargo.com | Other | 184ms | 67 KB | 53% | $3/mo | Optional |
connect.secure.wellsfargo.com connect.secure.wellsfargo.com | Other | 156ms | 1 KB | — | $3/mo | Optional |
www.wellsfargo.com www.wellsfargo.com | Other | 106ms | 44 KB | 48% | $2/mo | Optional |
c1.wfinterface.com c1.wfinterface.com | Other | 93ms | 36 KB | — | $2/mo | Optional |
c1.wfinterface.com c1.wfinterface.com | Other | 86ms | 31 KB | — | $1/mo | Optional |
www.wellsfargo.com www.wellsfargo.com | Other | 86ms | 40 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.wellsfargo.com adds 693ms and costs ~$12/month
- Unattributable adds 585ms and costs ~$10/month
- www.wellsfargo.com adds 539ms and costs ~$9/month
- static.wellsfargo.com adds 232ms and costs ~$4/month
- c1.wfinterface.com adds 229ms 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.wellsfargo.com takes 693ms 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 585ms 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.wellsfargo.com takes 539ms 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
static.wellsfargo.com takes 232ms 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 static.wellsfargo.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
c1.wfinterface.com takes 229ms 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
54% of c1.wfinterface.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
53% of www.wellsfargo.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