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.
1.23 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.88 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.06 s
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.
3.47 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.
5.98 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 98 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
DJS Execution CostAction3037ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://home.pl/app-8988e0ae990f51d17e7c.js | 1122ms | 601ms | 325ms | 1st |
| https://home.pl/framework-9db0984baece2154bf70.js | 846ms | 663ms | 5ms | 1st |
| https://home.pl/ | 361ms | 44ms | 2ms | 1st |
| Unattributable | 261ms | 4ms | 0ms | 3rd |
| https://cdn.consentmanager.net/delivery/customdata/bV8xLndfNDI5MTUucl9HRFBSLmxfcGwuZF8zNjIyMS54XzIzMi52LnAudF8zNjIyMS54dF8xMjk.js | 164ms | 150ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TT8M6V4 | 121ms | 100ms | 19ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-S3RK05M9PL&cx=c>m=4e64h1h1 | 110ms | 79ms | 31ms | 3rd |
| https://home.pl/94726e6d-5e04cd8813cb584fdfad.js | 52ms | 6ms | 2ms | 1st |
DJS BundlesAction14 scripts, 447 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://home.pl/app-8988e0ae990f51d17e7c.js | 1192 KB | 232 KB (20%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-S3RK05M9PL&cx=c>m=4e64h1h1 | 165 KB | 73 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TT8M6V4 | 172 KB | 72 KB (42%) | ✓ | 3rd |
| https://cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-22 | 101 KB | 35 KB (35%) | ✓ | 3rd |
| https://home.pl/b3a13d7d-57570adad5d48371d4a8.js | 37 KB | 35 KB (97%) | ✓ | 1st |
| https://home.pl/clever_ads.js | 0 KB | — | ✓ | 1st |
| https://home.pl/webpack-runtime-a702fe824f3f8dbf2d6b.js | 3 KB | — | ✓ | 1st |
| https://home.pl/framework-9db0984baece2154bf70.js | 45 KB | — | ✓ | 1st |
| https://home.pl/94726e6d-5e04cd8813cb584fdfad.js | 20 KB | — | ✓ | 1st |
| https://d.delivery.consentmanager.net/delivery/cmp.php?&cdid=008675ec07e8&h=https%3A%2F%2Fhome.pl%2F&&l=en&ls=EN_EN_EN&lp=PL&o=1776817991832 | 1 KB | — | ✓ | 3rd |
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
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
DPage Weight InventoryAction98 resources · 2.5 MB · 447 KB savings availableFIX
~447.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 98 resources | 2.5 MiB | ||||||
BImage Optimization32 images, 0 KB saveableREVIEW
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
AThird-Party Impact31% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (61 KB)PASS
Web fonts
4
61 KB total
Render-blocking
0
of 4
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+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: IONOS SE
Network Waterfall98 requests over 9918msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 261ms | 0 KB | — | zł3/mo | Costly |
cdn.consentmanager.net cdn.consentmanager.net | Other | 164ms | 12 KB | — | zł2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 121ms | 172 KB | 42% | zł2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 110ms | 165 KB | 44% | zł1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 261ms and costs ~zł3/month
Unattributable takes 261ms 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