https://www.eurovoyages.net
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
84
GRADE
B
FIX
1
REVIEW
8
PASS
10
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
65
98
96
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.42 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.59 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
172 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.396
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.49 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.
2.82 s
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
2210 PASS 8 REVIEW 1 FIX
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BThird-Party Impact51% third-party, 0 ms blockingREVIEW
Third-Party Impact
51% third-party, 0 ms blocking
51% third-party, 0 ms blocking
Warning::
Third-party code accounts for 51% of page weight (478.6 KiB of 937.6 KiB)
Info::
Third-party blocking time is low (0 ms)
49%
51%
First-party Third-party
CJS Execution CostAction1072ms total JS executionREVIEW
JS Execution Cost
Action1072ms total JS execution
1072ms total JS execution
Warning::
https://www.eurovoyages.net/: 601ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-10C5...: 268ms CPU time
Info::
Unattributable: 130ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-BPVE...: 73ms CPU time
Info::
Third-party scripts: 342ms (32% of total)
Main Thread Breakdown
Style & Layout 37% Script Evaluation 29% Other 26% Script Parsing & Compilation 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.eurovoyages.net/ | 601ms | 4ms | 1ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-10C53FVG5D | 268ms | 233ms | 18ms | 3rd |
| Unattributable | 130ms | 5ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-BPVEZPSHK9&cx=c>m=4e67g0 | 73ms | 60ms | 13ms | 3rd |
CJS BundlesAction7 scripts, 159 KB unusedREVIEW
JS Bundles
Action7 scripts, 159 KB unused
7 scripts, 159 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-BPVE...: 69 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-10C5...: 61 KB unused (33%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.eurovoyages.net/lib/jquery/dist/jquery...: 28 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 159 KB
159 KB unused JavaScript
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 (44%) | ✓ | 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.
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.
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
Compression Algorithm
Main response uses gzip; brotli would be ~20% smaller
Main 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.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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
APage Weight Budget938 KB transferred, 79 requestsPASS
Page Weight Budget
938 KB transferred, 79 requests
938 KB transferred, 79 requests
Info::
Page weighs 1.8 MB (938 KB transferred)
Info::
79 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
938 KB transferred
79 requests
0.19 g CO2 per page load
Images 467.7 KiB 50%
JavaScript 386.3 KiB 41%
HTML 36.2 KiB 4%
CSS 28.9 KiB 3%
Other 16.3 KiB 2%
Other 1.5 KiB 0%
Other 821 B 0%
0 2.4 MB 4.9 MB
Under budget
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.
AImage Optimization39 images, 0 KB saveablePASS
Image Optimization
39 images, 0 KB saveable
39 images, 0 KB saveable
Warning::
https://www.eurovoyages.net/Images/best-Package-De... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
39 images 468 KB
0 oversized -0 KB
2 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 LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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+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+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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
APage Weight Inventory79 resources · 938 KB · 159 KB savings availablePASS
Page Weight Inventory
79 resources · 938 KB · 159 KB savings available
79 resources · 938 KB · 159 KB savings available
Info::
Within 1MB page-weight target
Got: 938 KB
Info::
~159 KB of savings available
Warning::
33 third-party resources (51% of weight)
79 resources · 937.6 KiB · 33 third-party Within 1MB page-weight target
Image 51% · 482.8 KiB
JavaScript 41% · 386.3 KiB
Document 4% · 36.3 KiB
CSS 3% · 28.9 KiB
Other 0% · 3.2 KiB
~158.5 KiB of savings available
Remove unused JavaScript: 158.5 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 79 resources | 937.6 KiB | ||||||
Network Waterfall79 requests over 2050msINFO
Network Waterfall
79 requests over 2050ms
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
32% of JavaScript execution is third-party
First-party Third-party 342ms · 344KB · €4/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 268ms | 186 KB | 33% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 158 KB | 44% | €1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 268ms
Transfer 186 KB
Unused 33%
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Execution 73ms
Transfer 158 KB
Unused 44%
Monthly Cost €1/mo
These scripts may cost more than they're worth
- Google Tag Manager adds 268ms and costs ~€3/month
Google Tag Manager takes 268ms 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 Optimization38 images, 248 KB total, 189 KB wastedINFO
Image Optimization
38 images, 248 KB total, 189 KB wasted
Image Optimization Audit
Total Images
38
Total Size
248 KB
Oversized
11
Wasted
189 KB
31 missing dimensions 37 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.