Performance
· 24 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.
814 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.06 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
20 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.
1.32 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.
2.15 s
Page Load Progression
FPage Weight BudgetAction4.7 MB transferred, 70 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
CImage OptimizationAction17 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 Cost905ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://advancedenergyunited.org/ | 279ms | 38ms | 2ms | 1st |
| https://unpkg.com/gsap@3.12.2/dist/gsap.min.js | 245ms | 79ms | 2ms | 3rd |
| Unattributable | 141ms | 5ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-BSRJMQ4XBQ | 135ms | 115ms | 19ms | 3rd |
| https://advancedenergyunited.org/cdn-cgi/challenge-platform/scripts/jsd/main.js | 105ms | 100ms | 2ms | 1st |
BJS Bundles16 scripts, 94 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-BSRJMQ4XBQ | 179 KB | 72 KB (40%) | ✓ | 3rd |
| https://advancedenergyunited.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 30 KB | 22 KB (72%) | ✓ | 1st |
| https://unpkg.com/gsap@3.12.2/dist/ScrollTrigger.min.js | 17 KB | — | ✓ | 3rd |
| https://advancedenergyunited.org/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/imagesloaded@4/imagesloaded.pkgd.min.js?bd_ver=2.8.3 | 2 KB | — | ✓ | 1st |
| https://advancedenergyunited.org/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/breakdance-header-builder@1/header-builder.js?bd_ver=2.8.3 | 2 KB | — | ✓ | 1st |
| https://advancedenergyunited.org/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/breakdance-search-form@1/search-form.js?bd_ver=2.8.3 | 1 KB | — | ✓ | 1st |
| https://advancedenergyunited.org/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/awesome-menu@1/awesome-menu.js?bd_ver=2.8.3 | 17 KB | — | ✓ | 1st |
| https://unpkg.com/gsap@3.12.2/dist/gsap.min.js | 28 KB | — | ✓ | 3rd |
| https://advancedenergyunited.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 | 5 KB | — | ✓ | 1st |
| https://advancedenergyunited.org/wp-content/plugins/breakdance/plugin/global-scripts/breakdance-utils.js?bd_ver=2.8.3 | 2 KB | — | ✓ | 1st |
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
BMain HTML Cache-ControlMain HTML max-age=600 (~10min)REVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction70 resources · 4.7 MB · 94 KB savings availableREVIEW
~93.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 70 resources | 4.7 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact10% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (221 KB)PASS
Web fonts
4
221 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 HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+HTTP Cachingmax-age=600 (10 minutes)PASS
max-age=600, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| max-age | 600 | Cache for 10 minutes |
| must-revalidate | — | Must recheck with server after expiry |
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall70 requests over 1514msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
unpkg unpkg.com | CDN | 245ms | 28 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 135ms | 179 KB | 40% | $2/mo | Optional |
These scripts may cost more than they're worth
- unpkg adds 245ms and costs ~$3/month
42% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
unpkg takes 245ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-04 — 2026-10-01)
LCP (p75)
991 ms
97% good
INP (p75)
56 ms
96% good
CLS (p75)
0.000
97% good
FCP (p75)
921 ms
TTFB (p75)
562 ms
Image Optimization7 images, 955 KB total, 863 KB wastedINFO
Image Optimization Audit
Total Images
7
Total Size
955 KB
Oversized
7
Wasted
863 KB