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.
852 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.15 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.70 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.088
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.16 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.
6.00 s
Page Load Progression
FPage Weight BudgetAction3.4 MB transferred, 193 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
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
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction7890ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.handelsblatt.com/beta-frontend/polyfills.1cfcd735136e8afb.js | 2501ms | 1974ms | 0ms | 3rd |
| https://grafik.handelsblatt.com/qktjtt/xjcgnm-energie-monitor/energie-monitor.js?id=3 | 1681ms | 1208ms | 1ms | 3rd |
| Unattributable | 1276ms | 831ms | 0ms | 3rd |
| https://www.handelsblatt.com/ | 1175ms | 11ms | 0ms | 3rd |
| https://www.handelsblatt.com/beta-frontend/main.f6573cd79c18ac06.js | 478ms | 469ms | 1ms | 3rd |
| https://www.handelsblatt.com/beta-frontend/runtime.d2bd1f2a46c708dd.js | 355ms | 337ms | 0ms | 3rd |
| https://cmp-sp.handelsblatt.com/Notice.8f529.js | 180ms | 131ms | 9ms | 3rd |
| https://designsystem.hmgassets.com/webcomponents/main-2.0.0.js | 95ms | 77ms | 1ms | 3rd |
| https://norkon.handelsblatt.com/widgets/hb/dax-1/js.js?1674454629 | 91ms | 46ms | 25ms | 3rd |
| https://assets.www.handelsblatt.com/frontend/3804.c4b5bd4ad6a573c1.js | 57ms | 32ms | 0ms | 3rd |
FJS BundlesAction115 scripts, 617 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://grafik.handelsblatt.com/qktjtt/xjcgnm-energie-monitor/energie-monitor.js?id=3 | 456 KB | 137 KB (30%) | ✓ | 3rd |
| https://www.handelsblatt.com/beta-frontend/main.f6573cd79c18ac06.js | 176 KB | 73 KB (41%) | ✓ | 3rd |
| https://cmp-sp.handelsblatt.com/Notice.8f529.js | 91 KB | 62 KB (69%) | ✓ | 3rd |
| https://designsystem.hmgassets.com/webcomponents/chunk-EVQPINLC.js | 67 KB | 60 KB (91%) | ✓ | 3rd |
| https://norkon.handelsblatt.com/widgets/hb/dax-1/js.js?1674454629 | 0 KB | 58 KB (71%) | ✓ | 3rd |
| https://norkon.handelsblatt.com/widgets/hb/dax-1/js.js?1674454629 | 81 KB | 58 KB (71%) | ✓ | 3rd |
| https://designsystem.hmgassets.com/webcomponents/chunk-MMGWT2GU.js | 0 KB | 48 KB (35%) | ✓ | 3rd |
| https://designsystem.hmgassets.com/webcomponents/chunk-MMGWT2GU.js | 140 KB | 48 KB (35%) | ✓ | 3rd |
| https://assets.www.handelsblatt.com/frontend/3804.c4b5bd4ad6a573c1.js | 45 KB | 25 KB (57%) | ✓ | 3rd |
| https://designsystem.hmgassets.com/webcomponents/chunk-3DWW3FZ3.js | 0 KB | 23 KB (67%) | ✓ | 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
FPage Weight InventoryAction193 resources · 3.4 MB · 617 KB savings availableFIX
~617.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 193 resources | 3.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization21 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
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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading20 fonts (581 KB)PASS
Web fonts
20
581 KB total
Render-blocking
0
of 20
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- 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 ~29 KB and ~58 ms
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: Cloudflare
Network Waterfall193 requests over 9301msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.handelsblatt.com www.handelsblatt.com | Other | 2501ms | 12 KB | — | €40/mo | Costly |
grafik.handelsblatt.com grafik.handelsblatt.com | Other | 1681ms | 456 KB | 30% | €27/mo | Costly |
Unattributable Unattributable | Other | 1276ms | 0 KB | — | €20/mo | Costly |
www.handelsblatt.com www.handelsblatt.com | Other | 1175ms | 108 KB | — | €19/mo | Costly |
www.handelsblatt.com www.handelsblatt.com | Other | 478ms | 176 KB | 41% | €8/mo | Costly |
www.handelsblatt.com www.handelsblatt.com | Other | 355ms | 5 KB | — | €6/mo | Costly |
cmp-sp.handelsblatt.com cmp-sp.handelsblatt.com | Other | 180ms | 91 KB | 69% | €3/mo | Optional |
designsystem.hmgassets.com designsystem.hmgassets.com | Other | 95ms | 0 KB | — | €2/mo | Optional |
norkon.handelsblatt.com norkon.handelsblatt.com | Other | 91ms | 0 KB | 71% | €1/mo | Optional |
assets.www.handelsblatt.com assets.www.handelsblatt.com | Other | 57ms | 45 KB | 57% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.handelsblatt.com adds 2501ms and costs ~€40/month
- grafik.handelsblatt.com adds 1681ms and costs ~€27/month
- Unattributable adds 1276ms and costs ~€20/month
- www.handelsblatt.com adds 1175ms and costs ~€19/month
- www.handelsblatt.com adds 478ms and costs ~€8/month
- www.handelsblatt.com adds 355ms and costs ~€6/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
www.handelsblatt.com takes 2501ms 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
grafik.handelsblatt.com takes 1681ms 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
Unattributable takes 1276ms 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
www.handelsblatt.com takes 1175ms 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
www.handelsblatt.com takes 478ms 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
www.handelsblatt.com takes 355ms 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
69% of cmp-sp.handelsblatt.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
71% of norkon.handelsblatt.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
57% of assets.www.handelsblatt.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