https://www.globalmaritimecontainers.com
Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
80
GRADE
B
FIX
4
REVIEW
7
PASS
12
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
32
88
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
4.94 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
13.40 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.43 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.102
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.10 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.
13.49 s
Page Load Progression
582 ms 1.2 s 1.7 s
2.3 s
2.9 s
3.5 s
4.1 s
4.7 sChecks
2712 PASS 7 REVIEW 4 FIX
FPage Weight BudgetAction4.2 MB transferred, 32 requestsFIX
Page Weight Budget
Action4.2 MB transferred, 32 requests
4.2 MB transferred, 32 requests
Critical::
Page weighs 5.8 MB (4.2 MB transferred)
Warning::
Images are 3.5 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.5 MB
Warning::
JavaScript is 582 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 582 KB
Info::
32 HTTP requests
Info::
Estimated 0.88 g CO2 per page load
4.2 MB transferred
32 requests
0.88 g CO2 per page load
Images 3.5 MiB 84%
JavaScript 581.6 KiB 14%
Fonts 78.8 KiB 2%
CSS 4.5 KiB 0%
HTML 4.1 KiB 0%
Other 3.2 KiB 0%
Other 473 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Why this matters
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.
Why this matters
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
Third-Party Impact
Action93% third-party, 0 ms blocking
93% third-party, 0 ms blocking
Warning::
Third-party code accounts for 93% of page weight (3.9 MiB of 4.2 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
First-party Third-party
FJS Execution CostAction5292ms total JS executionFIX
JS Execution Cost
Action5292ms total JS execution
5292ms total JS execution
Warning::
https://www.globalmaritimecontainers.com/assets/pa...: 2001ms CPU time
Warning::
https://www.globalmaritimecontainers.com/assets/in...: 1164ms CPU time
Warning::
https://www.globalmaritimecontainers.com/: 1015ms CPU time
Warning::
Unattributable: 481ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-HTMY...: 386ms CPU time
Info::
Third-party scripts: 631ms (12% of total)
Main Thread Breakdown
Script Evaluation 44% Other 28% Style & Layout 20% Rendering 5%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.globalmaritimecontainers.com/assets/page-admin-DtrnRm0O.js | 2001ms | 1296ms | 2ms | 1st |
| https://www.globalmaritimecontainers.com/assets/index-DT92CZcJ.js | 1164ms | 93ms | 0ms | 1st |
| https://www.globalmaritimecontainers.com/ | 1015ms | 388ms | 2ms | 1st |
| Unattributable | 481ms | 16ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-HTMY2S5EPQ | 386ms | 322ms | 63ms | 3rd |
| https://cdn.tailwindcss.com/ | 245ms | 209ms | 35ms | 3rd |
DPage Weight InventoryAction32 resources · 4.2 MB · 230 KB savings availableFIX
Page Weight Inventory
Action32 resources · 4.2 MB · 230 KB savings available
32 resources · 4.2 MB · 230 KB savings available
Warning::
Page weight 4.2 MB exceeds 1 MB target by 3.2 MB
Got: 4.2 MB Expected: ≤ 1 MB
Info::
~230 KB of savings available
Warning::
24 third-party resources (93% of weight)
Info::
5 resources over 200KB
32 resources · 4.2 MiB · 24 third-party 3.2 MiB over 1MB target
Image 84% · 3.5 MiB
JavaScript 14% · 581.6 KiB
Font 2% · 78.8 KiB
CSS 0% · 4.5 KiB
Document 0% · 4.1 KiB
Other 0% · 3.7 KiB
~230.3 KiB of savings available
Remove unused JavaScript: 230.3 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 32 resources | 4.2 MiB | ||||||
CJS BundlesAction8 scripts, 230 KB unusedREVIEW
JS Bundles
Action8 scripts, 230 KB unused
8 scripts, 230 KB unused
Warning::
https://www.globalmaritimecontainers.com/assets/pa...: 104 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-HTMY...: 73 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.globalmaritimecontainers.com/assets/se...: 53 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 230 KB
230 KB unused JavaScript
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 | 179 KB | 73 KB (41%) | ✓ | 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.
Why this matters
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.
Why this matters
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.
Why this matters
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
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
Document Compression
Document response uses gzip; brotli would be ~20% smaller
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
2 JS blocking issue(s) detected
2 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
Total JS execution time is 5.3 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
BHTTP Cachingpublic,max-age=0,must-revalidateREVIEW
HTTP Caching
public,max-age=0,must-revalidate
public,max-age=0,must-revalidate
Info::
Cache-Control header is set
Got: public,max-age=0,must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control
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
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Image Optimization12 images, 0 KB saveablePASS
Image Optimization
12 images, 0 KB saveable
12 images, 0 KB saveable
Warning::
https://i.ibb.co/jkQJz5Rz/logo-2.webp is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 3.5 MB
0 oversized -0 KB
0 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
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
Font Loading
2 fonts (79 KB)
2 fonts (79 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
79 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
QGYvz_MVcBeNP4NJtEtqUYL... woff2 swap
Size 32 KB
Load time 81 ms
Start 599 ms
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 82 ms
Start 932 ms
Risk FOUT — text flashes from fallback to web font
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
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints7 hints, 0 missing preconnectsPASS
Resource Hints
7 hints, 0 missing preconnects
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)
Current Resource Hints
preconnect 4
preload 2
dns-prefetch 1
prefetch—
7 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public,max-age=0,must-revalidate
A+Server Response Intelligence3 server-response signal(s) detectedPASS
Server Response Intelligence
3 server-response signal(s) detected
3 server-response signal(s) detected
Info::
`Cache-Status` header present (RFC 9211): "Netlify Edge"; fwd=miss; fwd-status=200; stored
The page returns a `Cache-Status` header -- the standardized way for CDNs and caches to communicate per-hop cache state to debugging tools. Format: `Cache-Status: cdn-name; hit; ttl=300` (or `; fwd=miss` / `; fwd=stale`). Standard alternative to vendor-specific `X-Cache` patterns each CDN had historically. Cloudflare, Fastly, and Akamai all support emitting it.
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`ETag` present -- conditional GET supported
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall32 requests over 2294msINFO
Network Waterfall
32 requests over 2294ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
12% of JavaScript execution is third-party
First-party Third-party 631ms · 179KB · $8/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 386ms | 179 KB | 41% | $5/mo | Costly |
cdn.tailwindcss.com cdn.tailwindcss.com | Other | 245ms | 0 KB | — | $3/mo | Costly |
Google Tag Manager
Tag Manager
Execution 386ms
Transfer 179 KB
Unused 41%
Monthly Cost $5/mo
cdn.tailwindcss.com
Other
Execution 245ms
Transfer 0 KB
Monthly Cost $3/mo
These scripts may cost more than they're worth
- Google Tag Manager adds 386ms and costs ~$5/month
- cdn.tailwindcss.com adds 245ms and costs ~$3/month
Google Tag Manager takes 386ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cdn.tailwindcss.com takes 245ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Image Optimization14 images, 398 KB total, 365 KB wastedINFO
Image Optimization
14 images, 398 KB total, 365 KB wasted
Image Optimization Audit
Total Images
14
Total Size
398 KB
Oversized
11
Wasted
365 KB
14 missing dimensions 9 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.