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.
1.12 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.42 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.043
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.22 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.
1.42 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction107 resources · 1.4 MB · 263 KB savings availableFIX
~263.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 107 resources | 1.4 MiB | ||||||
BPage Weight Budget1.4 MB transferred, 107 requestsREVIEW
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
BImage Optimization20 images, 0 KB saveableREVIEW
CJS Execution CostAction1088ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://community.fandom.com/wiki/Community_Central | 288ms | 28ms | 5ms | 3rd |
| Unattributable | 219ms | 42ms | 0ms | 3rd |
| https://community.fandom.com/load.php?lang=en&modules=ext.fandom.HighlightToAction.js%2Cmessages%7Cext.fandom.ImageGalleryIconModuleInit.js%7Cext.fandom.Lightbox.js%7Cext.fandom.Sentry.loader.js%7Cext.fandom.ServerSideExperiments.js%7Cext.fandom.SilverSurferLoader.trackingWelcomeTool.js%7Cext.fandom.Thumbnails.js%2Cmessages%7Cext.fandom.TimeAgoMessaging.js%7Cext.fandom.Track.js%7Cext.fandom.UncrawlableUrl.anchors.js%7Cext.fandom.ae.consentQueue.js%7Cext.fandom.bannerNotifications.js%2Cmessages%7Cext.fandom.nositenotice.js%7Cext.fandom.performanceMonitoring.js%7Cext.fandom.photoGallery.gallery.js%7Cext.fandom.photoGallery.messages%7Cext.tabView.editor.js%7CfandomRequire.js%7Cfirst-D5F7QzLr.js%7CfloatingScroll.js%7CfocusTrap-BoJgeuWY.js%7Cgeo-CJDOL6aW.js%7CgetExperimentState-BM1HoR4p.js%7CgetItemThumbnailUrl-Dn-yT22W.js%7CgetUnreadNotificationsTotal-DxFo52Je.js%7Cindex-BLudW1Ik.js%7Cindex-BUbqVfk1.js%7Cindex-BnCUFfQk.js%7Cindex-C-Pijdev.js%7Cindex-C2LlOE17.js%7Cindex-CBHEx9lS.js%7Cindex-CErjS7iU.js%7Cindex-CG4aHpG-.js%7Cindex-CdFEHEfm.js%7Cindex-CfLllffC.js%7Cindex-ChttCnbJ.js%7Cindex-Crx1YJIV.js%7Cindex-Cx2A-M3q.js%7Cindex-D1iyHFEC.js%7Cindex-DazA-C_D.js%7Cindex-DvfjCoGO.js%7Cindex-DwLzB8vM.js%7Cindex-T1l5t4Jg.js%7Cindex-TwdoPyrT.js%7Cindex-gVf2G9FK.js%7Cindex-u3icI6hb.js%7Cinit-CmqdHMUR.js%7CinitPanel-_CszG-Ct.js%7CinitSearchApp-CjRrZ98D.js%7CinitializeFandomAds-kqAXzADD.js%7CisInViewport-COEvKgGj.js%7Cjquery%2Csite%7Cjquery-BjFuOzD4.js%7Cjquery.client%2CtextSelection%7CjqueryFandomExtensions-Cjor3_Zn.js%7Cjs.cookie-BsVx4kCt.js%7ClazyModules-BQPsc3bJ.js%7ClightboxAds-jqvX9zkA.js%7Cload-B-HR9-cN.js%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmustache-DBEtaZBl.js%7Cnirvana-CF2LOj1N.js%7CofType-cum6nKD-.js%7CparseExpBucketCookie-D-6bnpzR.js%7Cpathfinder-BxpM5Ld-.js%7CsearchModalUtils-Cd_h4dkC.js&skin=fandomdesktop&version=1ocno | 151ms | 95ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N6XD44P | 99ms | 79ms | 15ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 98ms | 84ms | 5ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 90ms | 56ms | 15ms | 3rd |
| https://community.fandom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 73ms | 70ms | 1ms | 3rd |
| https://www.fandom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 69ms | 61ms | 1ms | 3rd |
CJS BundlesAction48 scripts, 263 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://community.fandom.com/load.php?lang=en&modules=ext.fandom.HighlightToAction.js%2Cmessages%7Cext.fandom.ImageGalleryIconModuleInit.js%7Cext.fandom.Lightbox.js%7Cext.fandom.Sentry.loader.js%7Cext.fandom.ServerSideExperiments.js%7Cext.fandom.SilverSurferLoader.trackingWelcomeTool.js%7Cext.fandom.Thumbnails.js%2Cmessages%7Cext.fandom.TimeAgoMessaging.js%7Cext.fandom.Track.js%7Cext.fandom.UncrawlableUrl.anchors.js%7Cext.fandom.ae.consentQueue.js%7Cext.fandom.bannerNotifications.js%2Cmessages%7Cext.fandom.nositenotice.js%7Cext.fandom.performanceMonitoring.js%7Cext.fandom.photoGallery.gallery.js%7Cext.fandom.photoGallery.messages%7Cext.tabView.editor.js%7CfandomRequire.js%7Cfirst-D5F7QzLr.js%7CfloatingScroll.js%7CfocusTrap-BoJgeuWY.js%7Cgeo-CJDOL6aW.js%7CgetExperimentState-BM1HoR4p.js%7CgetItemThumbnailUrl-Dn-yT22W.js%7CgetUnreadNotificationsTotal-DxFo52Je.js%7Cindex-BLudW1Ik.js%7Cindex-BUbqVfk1.js%7Cindex-BnCUFfQk.js%7Cindex-C-Pijdev.js%7Cindex-C2LlOE17.js%7Cindex-CBHEx9lS.js%7Cindex-CErjS7iU.js%7Cindex-CG4aHpG-.js%7Cindex-CdFEHEfm.js%7Cindex-CfLllffC.js%7Cindex-ChttCnbJ.js%7Cindex-Crx1YJIV.js%7Cindex-Cx2A-M3q.js%7Cindex-D1iyHFEC.js%7Cindex-DazA-C_D.js%7Cindex-DvfjCoGO.js%7Cindex-DwLzB8vM.js%7Cindex-T1l5t4Jg.js%7Cindex-TwdoPyrT.js%7Cindex-gVf2G9FK.js%7Cindex-u3icI6hb.js%7Cinit-CmqdHMUR.js%7CinitPanel-_CszG-Ct.js%7CinitSearchApp-CjRrZ98D.js%7CinitializeFandomAds-kqAXzADD.js%7CisInViewport-COEvKgGj.js%7Cjquery%2Csite%7Cjquery-BjFuOzD4.js%7Cjquery.client%2CtextSelection%7CjqueryFandomExtensions-Cjor3_Zn.js%7Cjs.cookie-BsVx4kCt.js%7ClazyModules-BQPsc3bJ.js%7ClightboxAds-jqvX9zkA.js%7Cload-B-HR9-cN.js%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmustache-DBEtaZBl.js%7Cnirvana-CF2LOj1N.js%7CofType-cum6nKD-.js%7CparseExpBucketCookie-D-6bnpzR.js%7Cpathfinder-BxpM5Ld-.js%7CsearchModalUtils-Cd_h4dkC.js&skin=fandomdesktop&version=1ocno | 215 KB | 111 KB (52%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.1.0/otBannerSdk.js | 123 KB | 65 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N6XD44P | 138 KB | 59 KB (43%) | ✓ | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 55 KB | 29 KB (52%) | ✓ | 3rd |
| https://secure.quantserve.com/quant.js | 12 KB | — | ✓ | 3rd |
| https://static.wikia.nocookie.net/silversurfer/prod/latest/sdk.js | 32 KB | — | ✓ | 3rd |
| https://static.wikia.nocookie.net/silversurfer/prod/latest/pathfinder.js | 31 KB | — | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/otSDKStub.js | 9 KB | — | ✓ | 3rd |
| https://accounts.google.com/gsi/intermediate | 23 KB | — | ✓ | 3rd |
| https://www.fastly-insights.com/static/scout.js?k=17272cd8-82ee-4eb5-b5a3-b3cd5403f7c5 | 1 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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (69 KB)PASS
Web fonts
4
69 KB total
Render-blocking
0
of 4
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
AHTTP Cachingmax-age=3600 (1 hour)PASS
max-age=3600
| Directive | Value | Meaning |
|---|---|---|
| max-age | 3600 | Cache for 1 hour |
Network Waterfall107 requests over 3792msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
community.fandom.com community.fandom.com | Other | 288ms | 53 KB | — | $4/mo | Costly |
Unattributable Unattributable | Other | 219ms | 0 KB | — | $3/mo | Costly |
community.fandom.com community.fandom.com | Other | 151ms | 215 KB | 52% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 99ms | 138 KB | 43% | $1/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 98ms | 55 KB | 52% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 90ms | 123 KB | 53% | $1/mo | Essential |
community.fandom.com community.fandom.com | Other | 73ms | 0 KB | — | $1/mo | Optional |
www.fandom.com www.fandom.com | Other | 69ms | 0 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- community.fandom.com adds 288ms and costs ~$4/month
- Unattributable adds 219ms 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
community.fandom.com 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
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
52% of community.fandom.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
52% of script.crazyegg.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
53% of OneTrust'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