Performance
· 22 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.
465 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.72 s
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.
0.008
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
962 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.
1.72 s
Page Load Progression
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization9 images, 0 KB saveableREVIEW
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
CJS BundlesAction80 scripts, 188 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://aicshop.anticimex.com/_nuxt/RazOOpXa.js | 234 KB | 123 KB (53%) | ✓ | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-NPN2B7G2 | 116 KB | 64 KB (56%) | ✓ | 3rd |
| https://aicshop.anticimex.com/_nuxt/DJ3mNEl3.js | 0 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/fz0PryWe.js | 1 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/D0M7f08U.js | 9 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/UbtjZav2.js | 1 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/DDcNs8xy.js | 1 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/CLHrrWNw.js | 1 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/Bt_8CdDK.js | 0 KB | — | ✓ | 1st |
| https://aicshop.anticimex.com/_nuxt/DD3x2axb.js | 7 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CCompression AlgorithmActionMain response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget843 KB transferred, 107 requestsPASS
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
AThird-Party Impact22% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+JS Execution Cost339ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 179ms | 106ms | 0ms | 3rd |
| https://aicshop.anticimex.com/ | 98ms | 3ms | 1ms | 1st |
| https://aicshop.anticimex.com/_nuxt/RazOOpXa.js | 62ms | 49ms | 1ms | 1st |
A+Font Loading1 fonts (35 KB)PASS
Web fonts
1
35 KB total
Render-blocking
0
of 1
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+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Page Weight Inventory107 resources · 843 KB · 188 KB savings availablePASS
~187.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 107 resources | 843.2 KiB | ||||||
Network Waterfall107 requests over 1182msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 179ms | 0 KB | — | €2/mo | Optional |
53% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Image Optimization10 images, 7 KB total, 1 KB wastedINFO
Image Optimization Audit
Total Images
10
Total Size
7 KB
Oversized
5
Wasted
1 KB