Performance
· 26 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.
2.55 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.48 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.16 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.176
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.89 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.
8.98 s
Page Load Progression
FJS Execution CostAction3915ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.eurovoyages.net/ | 1978ms | 14ms | 4ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-10C53FVG5D | 1013ms | 898ms | 61ms | 3rd |
| Unattributable | 492ms | 14ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-BPVEZPSHK9&cx=c>m=4e67g0 | 326ms | 275ms | 49ms | 3rd |
| https://www.eurovoyages.net/lib/jquery/dist/jquery.min.js | 106ms | 89ms | 10ms | 1st |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BThird-Party Impact51% third-party, 0 ms blockingREVIEW
CJS BundlesAction7 scripts, 158 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-BPVEZPSHK9&cx=c>m=4e67g0 | 158 KB | 69 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-10C53FVG5D | 186 KB | 61 KB (33%) | ✓ | 3rd |
| https://www.eurovoyages.net/lib/jquery/dist/jquery.min.js | 38 KB | 28 KB (73%) | ✓ | 1st |
| https://www.eurovoyages.net/js/index.js?v=HekPeLNu0DhLWZ8Waz4F9YOApRhhzr4TkKpK5BIEhis | 1 KB | — | ✓ | 1st |
| https://cdn.skypack.dev/country-flag-emoji-polyfill | 1 KB | — | ✓ | 3rd |
| https://cdn.skypack.dev/-/country-flag-emoji-polyfill@v0.1.8-elq2aWPlqxWw0DRaKldD/dist=es2019,mode=imports/optimized/country-flag-emoji-polyfill.js | 1 KB | — | ✓ | 3rd |
| https://www.eurovoyages.net/js/site.js?v=hRQyftXiu1lLX2P9Ly9xa4gHJgLeR1uGN5qegUobtGo | 0 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
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
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget938 KB transferred, 79 requestsPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization39 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 LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
AResource Hints8 hints, 0 missing preconnectsPASS
Current Resource Hints
8 resource hints configured
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://www.google-analytics.com. Remove the redundant dns-prefetch entries.
Performance issues directly impact user engagement and conversion rates.
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://www.google-analytics.com (preconnect+dns-prefetch).
Performance issues directly impact user engagement and conversion rates.
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
APage Weight Inventory79 resources · 938 KB · 158 KB savings availablePASS
~157.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 79 resources | 937.6 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall79 requests over 2086msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 1013ms | 186 KB | 33% | €11/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 326ms | 158 KB | 43% | €4/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 1013ms and costs ~€11/month
- Google Tag Manager adds 326ms and costs ~€4/month
Google Tag Manager takes 1013ms 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
Google Tag Manager takes 326ms 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
Image Optimization38 images, 248 KB total, 189 KB wastedINFO
Image Optimization Audit
Total Images
38
Total Size
248 KB
Oversized
11
Wasted
189 KB