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.
579 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.41 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.
0.329
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
854 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.
1.41 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 sDHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
CPage Weight BudgetAction1.7 MB transferred, 73 requestsREVIEW
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
BImage Optimization27 images, 0 KB saveableREVIEW
BJS Execution Cost556ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://owncloud.com/ | 248ms | 7ms | 2ms | 1st |
| Unattributable | 92ms | 2ms | 0ms | 3rd |
| https://owncloud.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 75ms | 53ms | 2ms | 1st |
| https://consent.cookiebot.com/e217f921-fa5e-4784-a72e-76553381c036/cc.js?renew=false&referer=owncloud.com&dnt=false&init=false | 72ms | 29ms | 10ms | 3rd |
| https://consent.cookiebot.com/uc.js | 69ms | 53ms | 14ms | 3rd |
CJS BundlesAction26 scripts, 262 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-MZHCZVT | 149 KB | 71 KB (48%) | ✓ | 3rd |
| https://owncloud.com/wp-content/themes/ownCloud/dist/js/forms2.min.js?ver=1 | 65 KB | 48 KB (74%) | ✓ | 1st |
| https://owncloud.com/wp-content/themes/Divi/js/scripts.min.js?ver=4.27.6 | 56 KB | 36 KB (65%) | ✓ | 1st |
| https://owncloud.com/wp-includes/js/mediaelement/mediaelement-and-player.min.js?ver=4.2.17 | 35 KB | 28 KB (82%) | ✓ | 1st |
| https://consent.cookiebot.com/uc.js?cbid=e217f921-fa5e-4784-a72e-76553381c036&consentmode-dataredaction=dynamic | 27 KB | 26 KB (98%) | ✓ | 3rd |
| https://consent.cookiebot.com/uc.js | 27 KB | 26 KB (98%) | ✓ | 3rd |
| https://consent.cookiebot.com/e217f921-fa5e-4784-a72e-76553381c036/cc.js?renew=false&referer=owncloud.com&dnt=false&init=false | 108 KB | 26 KB (24%) | ✓ | 3rd |
| https://owncloud.com/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3 | 7 KB | — | ✓ | 1st |
| https://owncloud.com/wp-content/cache/min/1/wp-content/themes/ownCloud/dist/js/js.cookie.js?ver=1775045917 | 1 KB | — | ✓ | 1st |
| https://owncloud.com/wp-content/plugins/search-filter-pro/public/assets/js/chosen.jquery.min.js?ver=2.5.3 | 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
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
CPage Weight InventoryAction73 resources · 1.7 MB · 262 KB savings availableREVIEW
~262.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 73 resources | 1.7 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact18% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (215 KB)PASS
Web fonts
5
215 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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)
Fixing the unchecked items could save ~27 KB and ~54 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall73 requests over 944msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 92ms | 0 KB | — | €1/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 72ms | 108 KB | 24% | €1/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 69ms | 27 KB | 98% | €1/mo | Optional |
42% 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
98% of consent.cookiebot.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev