Performance
· 17 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.
5.59 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.91 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.12 s
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.
5.59 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.
20.58 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 83 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction7046ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1929ms | 1312ms | 0ms | 3rd |
| https://m.independent.ie/ | 1244ms | 93ms | 167ms | 3rd |
| https://cdns.gigya.com/js/gigya.js?apiKey=4_CO8231Ix1RbYi2EmMbsrlw | 830ms | 697ms | 59ms | 3rd |
| https://m.independent.ie/v2/header/cdn/fragment-header.0.0.331.indo.bundle.js | 509ms | 463ms | 2ms | 3rd |
| https://cdn.kaching.eu.com/prebid/10.17.0/ie/prebid.js | 466ms | 417ms | 46ms | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-en-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 435ms | 334ms | 25ms | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 386ms | 270ms | 84ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-W3H5GG3 | 277ms | 210ms | 63ms | 3rd |
| https://m.independent.ie/extra/static/js/mobile/vendors.js?v=20251209T160545 | 191ms | 149ms | 31ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 183ms | 136ms | 46ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction33 scripts, 909 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdns.gigya.com/js/gigya.js?apiKey=4_CO8231Ix1RbYi2EmMbsrlw | 239 KB | 137 KB (58%) | ✓ | 3rd |
| https://cdn.kaching.eu.com/prebid/10.17.0/ie/prebid.js | 175 KB | 137 KB (78%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 131 KB (70%) | ✓ | 3rd |
| https://m.independent.ie/extra/static/js/mobile/vendors.js?v=20251209T160545 | 160 KB | 100 KB (63%) | ✓ | 3rd |
| https://m.independent.ie/v2/article-list/cdn/fragment-article-list.0.0.1246.indo.bundle.js | 138 KB | 95 KB (69%) | ✓ | 3rd |
| https://m.independent.ie/v2/header/cdn/fragment-header.0.0.331.indo.bundle.js | 136 KB | 83 KB (61%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-W3H5GG3 | 187 KB | 77 KB (41%) | ✓ | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 102 KB | 44 KB (44%) | ✓ | 3rd |
| https://cdn.flip-pay.com/clients/mh/inm/19/flip-pay.js | 67 KB | 38 KB (58%) | ✓ | 3rd |
| https://m.independent.ie/v2/footer/cdn/fragment-footer.0.0.189.indo.bundle.js | 80 KB | 37 KB (47%) | ✓ | 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 InventoryAction83 resources · 2.7 MB · 909 KB savings availableFIX
~908.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 83 resources | 2.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction21 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 Loading5 fonts (258 KB)PASS
Web fonts
5
258 KB total
Render-blocking
0
of 5
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 Hints11 hints, 0 missing preconnectsPASS
Current Resource Hints
11 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall83 requests over 2115msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1929ms | 0 KB | — | €10/mo | Costly |
m.independent.ie m.independent.ie | Other | 1244ms | 120 KB | — | €7/mo | Costly |
cdns.gigya.com cdns.gigya.com | Other | 830ms | 239 KB | 58% | €4/mo | Costly |
m.independent.ie m.independent.ie | Other | 509ms | 136 KB | 61% | €3/mo | Costly |
cdn.kaching.eu.com cdn.kaching.eu.com | Other | 466ms | 175 KB | 78% | €2/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 435ms | 53 KB | — | €2/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 386ms | 102 KB | 44% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 277ms | 187 KB | 41% | €1/mo | Costly |
m.independent.ie m.independent.ie | Other | 191ms | 160 KB | 63% | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 183ms | 188 KB | 70% | €1/mo | Optional |
boot.pbstck.com boot.pbstck.com | Other | 132ms | 1 KB | — | €1/mo | Optional |
aswpsdkus.com aswpsdkus.com | Other | 105ms | 41 KB | 73% | €1/mo | Optional |
m.independent.ie m.independent.ie | Other | 90ms | 27 KB | — | €0/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 77ms | 34 KB | — | €0/mo | Optional |
m.independent.ie m.independent.ie | Other | 72ms | 21 KB | — | €0/mo | Optional |
mh-native-teasers.netlify.app mh-native-teasers.netlify.app | Other | 60ms | 2 KB | — | €0/mo | Optional |
m.independent.ie m.independent.ie | Other | 59ms | 6 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1929ms and costs ~€10/month
- m.independent.ie adds 1244ms and costs ~€7/month
- cdns.gigya.com adds 830ms and costs ~€4/month
- m.independent.ie adds 509ms and costs ~€3/month
- cdn.kaching.eu.com adds 466ms and costs ~€2/month
- sdk.privacy-center.org adds 435ms and costs ~€2/month
- sdk.privacy-center.org adds 386ms and costs ~€2/month
- Google Tag Manager adds 277ms and costs ~€1/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
Unattributable takes 1929ms 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
m.independent.ie takes 1244ms 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
cdns.gigya.com takes 830ms 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
58% of cdns.gigya.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
m.independent.ie takes 509ms 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
61% of m.independent.ie'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
cdn.kaching.eu.com takes 466ms 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
78% of cdn.kaching.eu.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
sdk.privacy-center.org takes 435ms 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
sdk.privacy-center.org takes 386ms 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
Google Tag Manager takes 277ms 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
63% of m.independent.ie'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
70% 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
73% of aswpsdkus.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