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.
1.69 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.71 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.048
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.02 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.
2.71 s
Page Load Progression
FPage Weight BudgetAction4.9 MB transferred, 69 requestsFIX
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction12 scripts, 224 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-WLWC2V8W | 137 KB | 69 KB (51%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 123 KB | 64 KB (52%) | ✓ | 3rd |
| https://s46182.pcdn.co/wp-content/themes/index-exchange/dist/js/main.min.js?ver=1771946915 | 94 KB | 47 KB (51%) | ✓ | 3rd |
| https://s46182.pcdn.co/wp-includes/js/jquery/jquery.js?ver=latest | 83 KB | 44 KB (53%) | ✗ | 3rd |
| https://kit.fontawesome.com/d4a1a6fc54.js?ver=6.9.4 | 6 KB | — | ✓ | 3rd |
| https://player.vimeo.com/api/player.js?ver=6.9.4 | 9 KB | — | ✓ | 3rd |
| https://s46182.pcdn.co/wp-content/themes/index-exchange/src/js/index-explains-taxonomy-filter/index.js | 1 KB | — | ✓ | 3rd |
| https://s46182.pcdn.co/wp-includes/js/hoverIntent.min.js?ver=1.10.2 | 1 KB | — | ✓ | 3rd |
| https://s46182.pcdn.co/wp-content/plugins/megamenu/js/maxmegamenu.js?ver=3.8.1 | 7 KB | — | ✗ | 3rd |
| https://s46182.pcdn.co/wp-content/plugins/megamenu-pro/assets/public.js?ver=2.4 | 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
DPage Weight InventoryAction69 resources · 4.9 MB · 224 KB savings availableFIX
~224.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 69 resources | 4.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction27 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
BJS Execution Cost529ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://s46182.pcdn.co/wp-content/themes/index-exchange/dist/js/main.min.js?ver=1771946915 | 234ms | 50ms | 7ms | 3rd |
| https://www.indexexchange.com/ | 134ms | 2ms | 1ms | 3rd |
| Unattributable | 103ms | 19ms | 0ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 57ms | 39ms | 10ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (347 KB)PASS
Web fonts
8
347 KB total
Render-blocking
0
of 8
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
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~123 KB and ~246 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall69 requests over 1797msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
s46182.pcdn.co s46182.pcdn.co | Other | 234ms | 94 KB | 51% | $3/mo | Costly |
www.indexexchange.com www.indexexchange.com | Other | 134ms | 112 KB | — | $2/mo | Optional |
Unattributable Unattributable | Other | 103ms | 0 KB | — | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 57ms | 123 KB | 52% | $1/mo | Essential |
These scripts may cost more than they're worth
- s46182.pcdn.co adds 234ms 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
s46182.pcdn.co takes 234ms 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 s46182.pcdn.co'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
52% of OneTrust'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