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.
669 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.32 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
291 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.
1.62 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.
5.33 s
Page Load Progression
403 ms
806 ms 1.2 s 1.6 s 2.0 s
2.4 s
2.8 s
3.2 sDPage Weight BudgetAction2.5 MB transferred, 170 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
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
DJS Execution CostAction2392ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.xe.com/_next/static/chunks/framework-40b5e567bde2471f.js | 833ms | 720ms | 6ms | 3rd |
| Unattributable | 323ms | 12ms | 0ms | 3rd |
| https://www.xe.com/ | 294ms | 9ms | 0ms | 3rd |
| https://www.xe.com/_next/static/chunks/8440.4b7b865df5c142e5.js | 174ms | 60ms | 12ms | 3rd |
| https://js.hs-analytics.net/analytics/1776804300000/44603794.js | 171ms | 111ms | 3ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WNCL796 | 152ms | 118ms | 20ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KRKJ3PLCP1&cx=c>m=4e64k0h2 | 107ms | 91ms | 15ms | 3rd |
| https://www.xe.com/_next/static/chunks/pages/index-572eecac81c866f0.js | 100ms | 100ms | 0ms | 3rd |
| https://www.xe.com/_next/static/chunks/pages/_app-8ab14d74c7375c78.js | 99ms | 63ms | 33ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-956005763&cx=c>m=4e64k0h2 | 85ms | 71ms | 13ms | 3rd |
Showing top 10 of 11 scripts
DJS BundlesAction95 scripts, 394 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.xe.com/_next/static/chunks/pages/_app-8ab14d74c7375c78.js | 273 KB | 102 KB (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KRKJ3PLCP1&cx=c>m=4e64k0h2 | 174 KB | 63 KB (36%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-956005763&cx=c>m=4e64k0h2 | 143 KB | 57 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WNCL796 | 187 KB | 54 KB (29%) | ✓ | 3rd |
| https://www.xe.com/_next/static/chunks/3130-4f0827d0592e2595.js | 55 KB | 45 KB (88%) | ✓ | 3rd |
| https://www.xe.com/_next/static/chunks/8440.4b7b865df5c142e5.js | 78 KB | 41 KB (53%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 32 KB (34%) | ✓ | 3rd |
| https://www.xe.com/_next/static/chunks/main-0365d3dbdc843bb2.js | 40 KB | — | ✓ | 3rd |
| https://www.xe.com/_next/static/chunks/746.d1597840b330b43c.js | 8 KB | — | ✓ | 3rd |
| https://www.xe.com/_next/static/chunks/5167-2a8780496b19c409.js | 4 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
DPage Weight InventoryAction170 resources · 2.5 MB · 394 KB savings availableFIX
~394.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 170 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization31 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
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 Loading3 fonts (75 KB)PASS
Web fonts
3
75 KB total
Render-blocking
0
of 3
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
Network Waterfall170 requests over 2809msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.xe.com www.xe.com | Other | 833ms | 55 KB | — | $14/mo | Costly |
Unattributable Unattributable | Other | 323ms | 0 KB | — | $6/mo | Costly |
www.xe.com www.xe.com | Other | 294ms | 48 KB | — | $5/mo | Costly |
www.xe.com www.xe.com | Other | 174ms | 78 KB | 53% | $3/mo | Optional |
HubSpot Analytics js.hs-analytics.net | Analytics | 171ms | 42 KB | — | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 152ms | 187 KB | 29% | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 107ms | 174 KB | 36% | $2/mo | Optional |
www.xe.com www.xe.com | Other | 100ms | 1 KB | — | $2/mo | Optional |
www.xe.com www.xe.com | Other | 99ms | 273 KB | 37% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 143 KB | 40% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 52ms | 40 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.xe.com adds 833ms and costs ~$14/month
- Unattributable adds 323ms and costs ~$6/month
- www.xe.com adds 294ms and costs ~$5/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.xe.com takes 833ms 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 323ms 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.xe.com takes 294ms 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
53% of www.xe.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