https://www.ndmnet.eu
Performance
· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
96
GRADE
A
FIX
0
REVIEW
5
PASS
18
INFO
2
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
100
100
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
907 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
920 ms
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.
0.011
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
907 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
924 ms
Page Load Progression
375 ms
750 ms
1.1 s 1.5 s 1.9 s 2.2 s 2.6 s 3.0 sChecks
2518 PASS 5 REVIEW
BImage Optimization11 images, 0 KB saveableREVIEW
Image Optimization
11 images, 0 KB saveable
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 25 KB
0 oversized -0 KB
11 legacy format
0 missing dimensions CLS risk
BJS Execution Cost730ms total JS executionREVIEW
JS Execution Cost
730ms total JS execution
730ms total JS execution
Warning::
https://www.ndmnet.eu/: 557ms CPU time
Info::
Unattributable: 173ms CPU time
Main Thread Breakdown
Style & Layout 46% Other 37% Rendering 10% Script Evaluation 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ndmnet.eu/ | 557ms | 26ms | 1ms | 1st |
| Unattributable | 173ms | 5ms | 0ms | 1st |
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.
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 Cachingno-cacheREVIEW
HTTP Caching
no-cache
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
Last-Modified header present
Cache-Control
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Page Weight Budget111 KB transferred, 26 requestsPASS
Page Weight Budget
111 KB transferred, 26 requests
111 KB transferred, 26 requests
Info::
Page weighs 252 KB (111 KB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
111 KB transferred
26 requests
0.02 g CO2 per page load
Fonts 40.7 KiB 37%
Images 25.1 KiB 23%
JavaScript 16.4 KiB 15%
Other 10.2 KiB 9%
CSS 9.9 KiB 9%
HTML 8.5 KiB 8%
0 2.4 MB 4.9 MB
Under budget
A+Third-Party ImpactNo third-party resourcesPASS
Third-Party Impact
No third-party resources
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
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+Font Loading4 fonts (41 KB)PASS
Font Loading
4 fonts (41 KB)
4 fonts (41 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
41 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
liberation-mono-700-lat... woff2 swap
Size 10 KB
Load time 35 ms
Start 234 ms
Risk FOUT — text flashes from fallback to web font
liberation-sans-700-lat... woff2 swap
Size 10 KB
Load time 30 ms
Start 234 ms
Risk FOUT — text flashes from fallback to web font
liberation-sans-400-lat... woff2 swap
Size 10 KB
Load time 33 ms
Start 235 ms
Risk FOUT — text flashes from fallback to web font
liberation-mono-400-lat... woff2 swap
Size 11 KB
Load time 31 ms
Start 235 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+JS Bundles3 scripts, 0 KB unusedPASS
JS Bundles
3 scripts, 0 KB unused
3 scripts, 0 KB unused
0 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.ndmnet.eu/assets/js/i18n/content.js?v=d29f2f8014 | 7 KB | — | ✓ | 1st |
| https://www.ndmnet.eu/assets/js/main.js?v=6da3c7217a | 3 KB | — | ✓ | 1st |
| https://www.ndmnet.eu/assets/js/i18n/content.js | 7 KB | — | ✓ | 1st |
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 HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
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 uses no-cache -- safe revalidate-on-request policyPASS
Main HTML Cache-Control
Main HTML uses no-cache -- safe revalidate-on-request policy
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
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::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+Page Weight Inventory26 resources · 111 KB · 0 KB savings availablePASS
Page Weight Inventory
26 resources · 111 KB · 0 KB savings available
26 resources · 111 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 111 KB
26 resources · 110.7 KiB · 0 third-party Within 1MB page-weight target
Font 37% · 40.7 KiB
Image 32% · 35.4 KiB
JavaScript 15% · 16.4 KiB
CSS 9% · 9.9 KiB
Document 8% · 8.5 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 26 resources | 110.7 KiB | ||||||
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+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
JavaScript Blocking
No render-blocking JS or document.write usage detected
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
CSS Performance Depth
1 CSS depth issue(s) detected
1 CSS depth issue(s) detected
Warning::
4 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall26 requests over 345msINFO
Network Waterfall
26 requests over 345ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization21 images, 7 KB total, 2 KB wastedINFO
Image Optimization
21 images, 7 KB total, 2 KB wasted
Image Optimization Audit
Total Images
21
Total Size
7 KB
Oversized
1
Wasted
2 KB
5 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.