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.
635 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.68 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
27 ms
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.
901 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.97 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction43 scripts, 342 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.ubs.com/etc/designs/fit/includes/js/common/js/vendors/vendors.default.min.ACSHASH33a46e6ccaab59da651479d18763c99e.js | 239 KB | 238 KB (100%) | ✓ | 3rd |
| https://assets.adobedtm.com/87f37070a3c7/874afce1f0f7/launch-6f3222d0ac97.min.js | 149 KB | 57 KB (38%) | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/js/common/js/utils.min.ACSHASH4030dfd05061005aafd61d9a4e419c15.js | 31 KB | 26 KB (82%) | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/shared_assets/clientlibs/jquery_ui.min.ACSHASH78e7f9ce5bb8fccbc3073da0bafe5329.js | 25 KB | 22 KB (89%) | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/js/components/alertribbon/publish.min.ACSHASH0de82fbc6ad00dd70ef858a626ed2830.js | 1 KB | — | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/tracking_launch_main.min.ACSHASH57d0f6e32e63cf09a2aae45c3255df36.js | 6 KB | — | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/js/responsive_v2/publish/js/main.min.ACSHASHacac3298ea2a888c041ae3de83d3b904.js | 15 KB | — | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/shared_assets/clientlibs/jquery.min.ACSHASH2c872dbe60f4ba70fb85356113d8b35e.js | 27 KB | — | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/shared_assets/clientlibs/jquery_migrate.min.ACSHASHfad78486d895a1cb63d4d7259ddcbef8.js | 4 KB | — | ✓ | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/js/common/js/loader.min.ACSHASH8973910bfc3a06c31b4c1a390ea7181a.js | 3 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
BPage Weight Budget1.1 MB transferred, 88 requestsREVIEW
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
BImage Optimization11 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
BJS Execution Cost799ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 248ms | 3ms | 0ms | 3rd |
| https://www.ubs.com/nl/en.html | 215ms | 11ms | 3ms | 3rd |
| https://fuse.ubs.com/d/tm.js?p=eh7KWg43bQ&l=&h=https%3A%2F%2Fwww.ubs.com%2Fnl%2Fen.html | 172ms | 136ms | 17ms | 3rd |
| https://assets.adobedtm.com/87f37070a3c7/874afce1f0f7/launch-6f3222d0ac97.min.js | 104ms | 70ms | 32ms | 3rd |
| https://www.ubs.com/etc/designs/fit/includes/js/responsive_v2/publish/js/main.min.ACSHASHacac3298ea2a888c041ae3de83d3b904.js | 60ms | 48ms | 3ms | 3rd |
BPage Weight Inventory88 resources · 1.1 MB · 342 KB savings availableREVIEW
~341.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 88 resources | 1.1 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (77 KB)PASS
Web fonts
5
77 KB total
Render-blocking
0
of 5
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
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 ~6 KB and ~12 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall88 requests over 1266msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 248ms | 0 KB | — | CHF4/mo | Costly |
www.ubs.com www.ubs.com | Other | 215ms | 18 KB | — | CHF3/mo | Costly |
fuse.ubs.com fuse.ubs.com | Other | 172ms | 60 KB | — | CHF3/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 104ms | 149 KB | 38% | CHF2/mo | Optional |
www.ubs.com www.ubs.com | Other | 60ms | 15 KB | — | CHF1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 248ms and costs ~CHF4/month
- www.ubs.com adds 215ms and costs ~CHF3/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 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
www.ubs.com takes 215ms 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