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.
7.96 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.70 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
6.06 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.036
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
9.78 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.
30.99 s
Page Load Progression
FPage Weight BudgetAction4.3 MB transferred, 197 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
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
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 CostAction21419ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.metacritic.com/a/neutron/nodev4/_nuxt4/COMbpNaR.js | 7484ms | 7225ms | 8ms | 3rd |
| Unattributable | 5199ms | 3210ms | 0ms | 3rd |
| https://www.metacritic.com/ | 2682ms | 314ms | 45ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PWVTCD9 | 1398ms | 1214ms | 66ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otTCF.js | 943ms | 822ms | 9ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 542ms | 296ms | 65ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 362ms | 284ms | 75ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HLJ6XDCTMV&cx=c>m=4e64h1 | 315ms | 259ms | 51ms | 3rd |
| https://script.wikia.nocookie.net/fandom-ae-assets/odyssey/identity-engine/production/main.js | 303ms | 2ms | 1ms | 3rd |
| https://www.metacritic.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 302ms | 289ms | 4ms | 3rd |
Showing top 10 of 22 scripts
FJS BundlesAction83 scripts, 989 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.metacritic.com/a/neutron/nodev4/_nuxt4/COMbpNaR.js | 469 KB | 240 KB (51%) | ✓ | 3rd |
| https://script.wikia.nocookie.net/fandom-ae-assets/odyssey/prebid/production/main.js | 172 KB | 136 KB (79%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 131 KB (70%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FQJ00EBFF9&cx=c>m=4e64h1 | 156 KB | 77 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HLJ6XDCTMV&cx=c>m=4e64h1 | 154 KB | 72 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NR9LWXM8>m=4e64h1 | 113 KB | 65 KB (58%) | ✓ | 3rd |
| https://www.metacritic.com/a/neutron/nodev4/_nuxt4/7_UPIt3N.js | 70 KB | 65 KB (92%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 123 KB | 58 KB (47%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 58 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PWVTCD9 | 145 KB | 54 KB (37%) | ✓ | 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 InventoryAction197 resources · 4.3 MB · 989 KB savings availableFIX
~988.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 197 resources | 4.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization68 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (111 KB)PASS
Web fonts
5
111 KB total
Render-blocking
0
of 5
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 ~15 KB and ~30 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 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 Waterfall197 requests over 8229msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.metacritic.com www.metacritic.com | Other | 7484ms | 469 KB | 51% | €81/mo | Costly |
Unattributable Unattributable | Other | 5199ms | 0 KB | — | €56/mo | Costly |
www.metacritic.com www.metacritic.com | Other | 2682ms | 208 KB | — | €29/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 1398ms | 145 KB | 37% | €15/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 943ms | 18 KB | — | €10/mo | Essential |
OneTrust cdn.cookielaw.org | Consent | 542ms | 123 KB | 47% | €6/mo | Essential |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 362ms | 187 KB | 70% | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 315ms | 154 KB | 47% | €3/mo | Costly |
script.wikia.nocookie.net script.wikia.nocookie.net | Other | 303ms | 32 KB | — | €3/mo | Costly |
www.metacritic.com www.metacritic.com | Other | 302ms | 0 KB | — | €3/mo | Costly |
script.wikia.nocookie.net script.wikia.nocookie.net | Other | 288ms | 172 KB | 79% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 266ms | 156 KB | 50% | €3/mo | Costly |
cdn-magiclinks.trackonomics.net cdn-magiclinks.trackonomics.net | Other | 243ms | 30 KB | — | €3/mo | Costly |
script.wikia.nocookie.net script.wikia.nocookie.net | Other | 230ms | 60 KB | 56% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 156ms | 113 KB | 58% | €2/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 145ms | 91 KB | 64% | €2/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 128ms | 10 KB | — | €1/mo | Optional |
www.metacritic.com www.metacritic.com | Other | 118ms | 2 KB | — | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 106ms | 34 KB | — | €1/mo | Optional |
apis.google.com apis.google.com | Other | 89ms | 34 KB | — | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 63ms | 9 KB | — | €1/mo | Essential |
www.metacritic.com www.metacritic.com | Other | 57ms | 60 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.metacritic.com adds 7484ms and costs ~€81/month
- Unattributable adds 5199ms and costs ~€56/month
- www.metacritic.com adds 2682ms and costs ~€29/month
- Google Tag Manager adds 1398ms and costs ~€15/month
- securepubads.g.doubleclick.net adds 362ms and costs ~€4/month
- Google Tag Manager adds 315ms and costs ~€3/month
- script.wikia.nocookie.net adds 303ms and costs ~€3/month
- www.metacritic.com adds 302ms and costs ~€3/month
- script.wikia.nocookie.net adds 288ms and costs ~€3/month
- Google Tag Manager adds 266ms and costs ~€3/month
- cdn-magiclinks.trackonomics.net adds 243ms and costs ~€3/month
- script.wikia.nocookie.net adds 230ms 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
www.metacritic.com takes 7484ms 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
51% of www.metacritic.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 5199ms 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.metacritic.com takes 2682ms 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 1398ms 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
securepubads.g.doubleclick.net takes 362ms 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
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
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
script.wikia.nocookie.net takes 303ms 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.metacritic.com takes 302ms 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
script.wikia.nocookie.net takes 288ms 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
79% of script.wikia.nocookie.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
Google Tag Manager takes 266ms 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
cdn-magiclinks.trackonomics.net takes 243ms 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
script.wikia.nocookie.net takes 230ms 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
56% of script.wikia.nocookie.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
58% of Google Tag Manager'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 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