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.
739 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.22 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
33.70 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.18 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.
43.79 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 174 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
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 CostAction44636ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ladbible.com/_next/static/chunks/8606-b62fbe487961dfc5.js | 42658ms | 67ms | 1ms | 3rd |
| https://www.ladbible.com/_next/static/chunks/1517-7fdef48b9c3f2303.js | 442ms | 400ms | 7ms | 3rd |
| Unattributable | 370ms | 108ms | 0ms | 3rd |
| https://www.ladbible.com/_next/static/chunks/4bd1b696-584e3c556642bbc3.js | 316ms | 10ms | 8ms | 3rd |
| https://www.ladbible.com/ | 166ms | 28ms | 13ms | 3rd |
| https://micro.rubiconproject.com/prebid/dynamic/13128.js | 150ms | 125ms | 23ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31098007 | 98ms | 68ms | 20ms | 3rd |
| https://silo66.p7cloud.net/as1.js?uri=https%3A%2F%2Fwww.ladbible.com | 92ms | 52ms | 15ms | 3rd |
| https://fundingchoicesmessages.google.com/i/106213651?ers=3 | 84ms | 74ms | 8ms | 3rd |
| https://sdk.mrf.io/statics/marfeel-sdk.js?id=8604 | 79ms | 64ms | 0ms | 3rd |
Showing top 10 of 13 scripts
DJS BundlesAction60 scripts, 480 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31098007 | 188 KB | 130 KB (69%) | ✓ | 3rd |
| https://micro.rubiconproject.com/prebid/dynamic/13128.js | 186 KB | 98 KB (52%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 51 KB (56%) | ✓ | 3rd |
| https://www.ladbible.com/_next/static/chunks/bd904a5c-2526fc6ceb6112fc.js | 57 KB | 45 KB (78%) | ✓ | 3rd |
| https://fundingchoicesmessages.google.com/i/106213651?ers=3 | 70 KB | 37 KB (54%) | ✓ | 3rd |
| https://cdn.id5-sync.com/api/1.0/id5-api.js | 34 KB | 31 KB (91%) | ✓ | 3rd |
| https://cdn1.anonymised.io/light/auth.js?v=1.8.54 | 28 KB | 23 KB (86%) | ✓ | 3rd |
| https://www.ladbible.com/_next/static/chunks/b536a0f1-d45603aa3caf459b.js | 80 KB | 23 KB (29%) | ✓ | 3rd |
| https://www.ladbible.com/_next/static/chunks/1517-7fdef48b9c3f2303.js | 45 KB | 22 KB (49%) | ✓ | 3rd |
| https://consent.ladbible.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js | 42 KB | 21 KB (51%) | ✓ | 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 InventoryAction174 resources · 2.5 MB · 480 KB savings availableFIX
~480.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 174 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization37 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (32 KB)PASS
Web fonts
2
32 KB total
Render-blocking
0
of 2
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: Cloudflare
Network Waterfall174 requests over 39833msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ladbible.com www.ladbible.com | Other | 42658ms | 9 KB | — | €682/mo | Costly |
www.ladbible.com www.ladbible.com | Other | 442ms | 45 KB | 49% | €7/mo | Costly |
Unattributable Unattributable | Other | 370ms | 0 KB | — | €6/mo | Costly |
www.ladbible.com www.ladbible.com | Other | 316ms | 52 KB | — | €5/mo | Costly |
www.ladbible.com www.ladbible.com | Other | 166ms | 62 KB | — | €3/mo | Optional |
micro.rubiconproject.com micro.rubiconproject.com | Other | 150ms | 186 KB | 52% | €2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 98ms | 188 KB | 69% | €2/mo | Optional |
silo66.p7cloud.net silo66.p7cloud.net | Other | 92ms | 89 KB | — | €1/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 84ms | 70 KB | 54% | €1/mo | Optional |
sdk.mrf.io sdk.mrf.io | Other | 79ms | 42 KB | — | €1/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 73ms | 91 KB | 56% | €1/mo | Optional |
cdn.id5-sync.com cdn.id5-sync.com | Other | 56ms | 34 KB | 91% | €1/mo | Optional |
consent.ladbible.com consent.ladbible.com | Other | 51ms | 42 KB | 51% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.ladbible.com adds 42658ms and costs ~€682/month
- www.ladbible.com adds 442ms and costs ~€7/month
- Unattributable adds 370ms and costs ~€6/month
- www.ladbible.com adds 316ms and costs ~€5/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.ladbible.com takes 42658ms 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.ladbible.com takes 442ms 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 370ms 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.ladbible.com takes 316ms 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
52% of micro.rubiconproject.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
69% of securepubads.g.doubleclick.net'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
54% of fundingchoicesmessages.google.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
56% of c.amazon-adsystem.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
91% of cdn.id5-sync.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
51% of consent.ladbible.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