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.
1.27 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.89 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
8 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.56 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.
3.43 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 sFPage Weight BudgetAction2.8 MB transferred, 157 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 BundlesAction36 scripts, 1015 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.adsninja.ca/adsninja_client.js?v=3648 | 318 KB | 274 KB (86%) | ✓ | 3rd |
| https://cdn.adsninja.ca/biddertypelibrary/live/PocketLint/Prebid_Default.js?v=3648 | 198 KB | 163 KB (82%) | ✓ | 3rd |
| https://cdn.jsdelivr.net/npm/hls.js@latest | 160 KB | 145 KB (91%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 133 KB (71%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 147 KB | 107 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FR3HT9CLFL | 159 KB | 66 KB (41%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 58 KB (64%) | ✓ | 3rd |
| https://static0.pocketlintimages.com/assets/valnet-footer.08dab0d7.js | 64 KB | 49 KB (77%) | ✓ | 3rd |
| https://cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js | 42 KB | 21 KB (51%) | ✓ | 3rd |
| https://static0.pocketlintimages.com/assets/article-comments.050184fe.js | 19 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
FPage Weight InventoryAction157 resources · 2.8 MB · 1015 KB savings availableFIX
~1015.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 157 resources | 2.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization38 images, 0 KB saveableREVIEW
BJS Execution Cost804ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static0.pocketlintimages.com/assets/valnet-footer.08dab0d7.js | 245ms | 48ms | 8ms | 3rd |
| Unattributable | 219ms | 23ms | 0ms | 3rd |
| https://www.pocket-lint.com/ | 154ms | 27ms | 3ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 68ms | 48ms | 10ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FR3HT9CLFL | 65ms | 53ms | 9ms | 3rd |
| https://btloader.com/tag?o=5100917733457920&upapi=true | 53ms | 48ms | 3ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (129 KB)PASS
Web fonts
4
129 KB total
Render-blocking
0
of 4
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 ~19 KB and ~38 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall157 requests over 5186msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static0.pocketlintimages.com static0.pocketlintimages.com | Other | 245ms | 64 KB | 77% | €3/mo | Costly |
Unattributable Unattributable | Other | 219ms | 0 KB | — | €2/mo | Costly |
www.pocket-lint.com www.pocket-lint.com | Other | 154ms | 82 KB | — | €2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 68ms | 187 KB | 71% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 159 KB | 41% | €1/mo | Optional |
btloader.com btloader.com | Other | 53ms | 31 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- static0.pocketlintimages.com adds 245ms and costs ~€3/month
- Unattributable adds 219ms and costs ~€2/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
static0.pocketlintimages.com takes 245ms 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
77% of static0.pocketlintimages.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
Unattributable takes 219ms 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
71% 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