Performance
· 23 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.
1.11 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.90 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
166 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.78 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.
2.03 s
Page Load Progression
FPage Weight BudgetAction4.0 MB transferred, 33 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
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 ImpactAction93% third-party, 0 ms blockingFIX
FJS Execution CostAction7091ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.globalmaritimecontainers.com/assets/index-DT92CZcJ.js | 3764ms | 256ms | 0ms | 1st |
| https://www.globalmaritimecontainers.com/ | 1700ms | 80ms | 0ms | 1st |
| https://www.globalmaritimecontainers.com/assets/page-admin-DtrnRm0O.js | 1027ms | 634ms | 0ms | 1st |
| Unattributable | 381ms | 4ms | 0ms | 1st |
| https://cdn.tailwindcss.com/ | 124ms | 115ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HTMY2S5EPQ | 96ms | 84ms | 11ms | 3rd |
DPage Weight InventoryAction33 resources · 4.0 MB · 231 KB savings availableFIX
~230.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 33 resources | 4.0 MiB | ||||||
CJS BundlesAction8 scripts, 231 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.globalmaritimecontainers.com/assets/page-admin-DtrnRm0O.js | 124 KB | 104 KB (84%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-HTMY2S5EPQ | 178 KB | 74 KB (42%) | ✓ | 3rd |
| https://www.globalmaritimecontainers.com/assets/services-D1Dqsc6n.js | 68 KB | 53 KB (77%) | ✓ | 1st |
| https://www.globalmaritimecontainers.com/assets/index-DT92CZcJ.js | 26 KB | — | ✓ | 1st |
| https://www.globalmaritimecontainers.com/assets/vendor-icons-BH_dyerz.js | 12 KB | — | ✓ | 1st |
| https://www.globalmaritimecontainers.com/assets/page-public-Vy7rOFtp.js | 36 KB | — | ✓ | 1st |
| https://www.globalmaritimecontainers.com/assets/page-info-DFQCMZkC.js | 13 KB | — | ✓ | 1st |
| https://cdn.tailwindcss.com/3.4.17 | 124 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingpublic,max-age=0,must-revalidateREVIEW
public,max-age=0,must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
AImage Optimization12 images, 0 KB saveablePASS
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
A+Font Loading2 fonts (79 KB)PASS
Web fonts
2
79 KB total
Render-blocking
0
of 2
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+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
A+Server Response Intelligence3 server-response signal(s) detectedPASS
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall33 requests over 30778msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn.tailwindcss.com cdn.tailwindcss.com | Other | 124ms | 0 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 96ms | 178 KB | 42% | $1/mo | Optional |
Image Optimization14 images, 398 KB total, 365 KB wastedINFO
Image Optimization Audit
Total Images
14
Total Size
398 KB
Oversized
10
Wasted
365 KB