Performance
· 15 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.
747 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
787 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.
0.008
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
796 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.
787 ms
Page Load Progression
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
BThird-Party Impact45% third-party, 0 ms blockingREVIEW
BImage Optimization12 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
BJS Execution Cost940ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cutt.ly/ | 695ms | 11ms | 3ms | 1st |
| https://cutt.ly/scripts/hero-anim.js?v=1 | 179ms | 10ms | 1ms | 1st |
| Unattributable | 66ms | 2ms | 0ms | 3rd |
A+Page Weight Budget365 KB transferred, 31 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (163 KB)PASS
Web fonts
5
163 KB total
Render-blocking
0
of 5
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+JS Bundles7 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cutt.ly/scripts/jquery.js?v=03112023 | 29 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/bootstrap.min.js?v=2302202301 | 21 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/url.js?v=2812202401 | 2 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/classie.js?v=2210202401 | 1 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/main.js?v=2706202501 | 3 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/cookieconsent.js?v=1811202320 | 7 KB | — | ✓ | 1st |
| https://cutt.ly/scripts/hero-anim.js?v=1 | 6 KB | — | ✓ | 1st |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory31 resources · 365 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 31 resources | 365.3 KiB | ||||||
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall31 requests over 1075msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 66ms | 0 KB | — | zł5/mo | Optional |