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.
6.62 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
26.12 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.18 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.
11.99 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.
26.58 s
Page Load Progression
FPage Weight BudgetAction5.5 MB transferred, 260 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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 CostAction7468ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.manchestereveningnews.co.uk/ | 1907ms | 86ms | 81ms | 3rd |
| Unattributable | 1182ms | 83ms | 0ms | 3rd |
| https://www.manchestereveningnews.co.uk/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e6e1a/_next/static/chunks/3794-7315db15a5700b37.js | 1117ms | 872ms | 20ms | 3rd |
| https://cmp.inmobi.com/tcfv2/61/cmp2ui-en.js | 573ms | 289ms | 41ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WL2JKZG | 315ms | 251ms | 41ms | 3rd |
| https://www.manchestereveningnews.co.uk/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e6e1a/_next/static/chunks/9308-a0fa6767bee242d9.js | 315ms | 224ms | 27ms | 3rd |
| https://cmp.inmobi.com/tcfv2/61/cmp2.js?referer=www.manchestereveningnews.co.uk | 270ms | 164ms | 42ms | 3rd |
| https://s2-prod.manchestereveningnews.co.uk/@trinitymirrordigital/auth-ui/auth-ui.min.js?v=v260318 | 268ms | 158ms | 56ms | 3rd |
| https://scripts.webcontentassessor.com/scripts/7b1e01dc47c6fea8410ec1a09f1546a632813c664807447bf12b3eee6591b72e | 189ms | 136ms | 52ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 186ms | 118ms | 39ms | 3rd |
Showing top 10 of 20 scripts
FJS BundlesAction65 scripts, 592 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 142 KB (76%) | ✓ | 3rd |
| https://s2-prod.manchestereveningnews.co.uk/@trinitymirrordigital/auth-ui/auth-ui.min.js?v=v260318 | 119 KB | 71 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WL2JKZG | 168 KB | 69 KB (41%) | ✓ | 3rd |
| https://cdn.amplitude.com/libs/analytics-browser-gtm-wrapper-2.36.8.min.js.br | 80 KB | 66 KB (84%) | ✓ | 3rd |
| https://cmp.inmobi.com/tcfv2/61/cmp2ui-en.js | 125 KB | 60 KB (48%) | ✓ | 3rd |
| https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603 | 42 KB | 32 KB (78%) | ✓ | 3rd |
| https://cdn.eu.amplitude.com/libs/analytics-browser-2.25.0-min.js.gz | 50 KB | 32 KB (64%) | ✓ | 3rd |
| https://cdn.amplitude.com/libs/analytics-browser-gtm-2.36.8-min.js.gz | 55 KB | 28 KB (52%) | ✓ | 3rd |
| https://www.reachgeneric.co.uk/bad-ads-reporting-tool/js/AdVerification/verify-2.0.2.min.js?cb=1776679200 | 40 KB | 27 KB (67%) | ✓ | 3rd |
| https://www.manchestereveningnews.co.uk/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e6e1a/_next/static/chunks/1941-bc030a9de4059cfa.js | 37 KB | 25 KB (68%) | ✓ | 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 InventoryAction260 resources · 5.5 MB · 592 KB savings availableFIX
~592.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 260 resources | 5.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction113 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
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 Loading18 fonts (525 KB)PASS
Web fonts
18
525 KB total
Render-blocking
0
of 18
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 Hints26 hints, 0 missing preconnectsPASS
Current Resource Hints
26 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall260 requests over 5528msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 1907ms | 69 KB | — | £20/mo | Costly |
Unattributable Unattributable | Other | 1182ms | 0 KB | — | £12/mo | Costly |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 1117ms | 46 KB | 45% | £12/mo | Costly |
cmp.inmobi.com cmp.inmobi.com | Other | 573ms | 125 KB | 48% | £6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 315ms | 168 KB | 41% | £3/mo | Costly |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 315ms | 81 KB | 27% | £3/mo | Costly |
cmp.inmobi.com cmp.inmobi.com | Other | 270ms | 134 KB | — | £3/mo | Costly |
s2-prod.manchestereveningnews.co.uk s2-prod.manchestereveningnews.co.uk | Other | 268ms | 119 KB | 60% | £3/mo | Costly |
scripts.webcontentassessor.com scripts.webcontentassessor.com | Other | 189ms | 142 KB | — | £2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 186ms | 188 KB | 76% | £2/mo | Optional |
feliz-web.data.tm-awx.com feliz-web.data.tm-awx.com | Other | 169ms | 7 KB | — | £2/mo | Optional |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 161ms | 58 KB | — | £2/mo | Optional |
mantishydra.mantis-awx.com mantishydra.mantis-awx.com | Other | 128ms | 15 KB | — | £1/mo | Optional |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 124ms | 3 KB | — | £1/mo | Optional |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 120ms | 32 KB | — | £1/mo | Optional |
www.manchestereveningnews.co.uk www.manchestereveningnews.co.uk | Other | 119ms | 37 KB | 68% | £1/mo | Optional |
Amplitude cdn.amplitude.com | Analytics | 101ms | 80 KB | 84% | £1/mo | Optional |
Amplitude cdn.amplitude.com | Analytics | 81ms | 55 KB | 52% | £1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 74ms | 34 KB | — | £1/mo | Optional |
cdn.eu.amplitude.com cdn.eu.amplitude.com | Other | 71ms | 50 KB | 64% | £1/mo | Optional |
These scripts may cost more than they're worth
- www.manchestereveningnews.co.uk adds 1907ms and costs ~£20/month
- Unattributable adds 1182ms and costs ~£12/month
- www.manchestereveningnews.co.uk adds 1117ms and costs ~£12/month
- cmp.inmobi.com adds 573ms and costs ~£6/month
- Google Tag Manager adds 315ms and costs ~£3/month
- www.manchestereveningnews.co.uk adds 315ms and costs ~£3/month
- cmp.inmobi.com adds 270ms and costs ~£3/month
- s2-prod.manchestereveningnews.co.uk adds 268ms and costs ~£3/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.manchestereveningnews.co.uk takes 1907ms 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 1182ms 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.manchestereveningnews.co.uk takes 1117ms 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
cmp.inmobi.com takes 573ms 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 315ms 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.manchestereveningnews.co.uk takes 315ms 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
cmp.inmobi.com takes 270ms 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
s2-prod.manchestereveningnews.co.uk takes 268ms 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
60% of s2-prod.manchestereveningnews.co.uk'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
76% 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
68% of www.manchestereveningnews.co.uk'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
84% of Amplitude'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
52% of Amplitude'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
64% of cdn.eu.amplitude.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