https://en.wikipedia.org/wiki/Octopus
Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
1
REVIEW
6
PASS
15
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
66
79
96
85
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.81 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.71 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
538 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.315
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.02 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.
4.72 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 sChecks
2615 PASS 6 REVIEW 1 FIX
DJS Execution CostAction3154ms total JS executionFIX
JS Execution Cost
Action3154ms total JS execution
3154ms total JS execution
Warning::
https://en.wikipedia.org/wiki/Octopus: 1260ms CPU time
Warning::
Unattributable: 751ms CPU time
Warning::
https://en.wikipedia.org/w/load.php?lang=en&module...: 634ms CPU time
Warning::
https://en.wikipedia.org/w/load.php?lang=en&module...: 510ms CPU time
Info::
Third-party scripts: 751ms (24% of total)
Main Thread Breakdown
Script Evaluation 36% Other 26% Style & Layout 18% Parse HTML & CSS 10% Script Parsing & Compilation 6% Rendering 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://en.wikipedia.org/wiki/Octopus | 1260ms | 84ms | 17ms | 1st |
| Unattributable | 751ms | 14ms | 0ms | 3rd |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | 634ms | 472ms | 14ms | 1st |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=lru5x | 510ms | 286ms | 181ms | 1st |
BImage Optimization23 images, 0 KB saveableREVIEW
Image Optimization
23 images, 0 KB saveable
23 images, 0 KB saveable
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
23 images 129 KB
0 oversized -0 KB
17 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
BJS Bundles6 scripts, 80 KB unusedREVIEW
JS Bundles
6 scripts, 80 KB unused
6 scripts, 80 KB unused
Warning::
https://en.wikipedia.org/w/load.php?lang=en&module...: 80 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 80 KB
80 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.centralNotice.bannerHistoryLogger%2CchoiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClargeBannerLimit%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.languagesearcher.init%7Cext.cx.entrypoints.mffrequentlanguages%7Cext.cx.eventlogging.campaigns%7Cext.cx.model%7Cext.echo.centralauth%7Cext.eventLogging%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.parsermigration.survey%7Cext.quicksurveys.init%2Clib%7Cext.relatedArticles.readMore.bootstrap%7Cext.tmh.OgvJsSupport%2Cplayer%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cmediawiki.DateFormatter%2CForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.media%2Cready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%7Cmobile.codex.styles%7Cmobile.init%2Cstartup%7Cmw.cx.SiteMapper%7Cmw.externalguidance.init%7Cskins.minerva.scripts%7Cwikibase.databox.fromWikidata&skin=minerva&version=lru5x | 210 KB | 80 KB (38%) | ✓ | 1st |
| https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva | 22 KB | — | ✓ | 1st |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.gadget.switcher&skin=minerva&version=mygzm | 2 KB | — | ✓ | 1st |
| https://en.wikipedia.org/w/load.php?lang=en&modules=ext.visualEditor.core.utils.parsing%7Cext.visualEditor.targetLoader%2Ctrack%2Cve&skin=minerva&version=vb9eu | 9 KB | — | ✓ | 1st |
| https://auth.wikimedia.org/metawiki/wiki/Special:CentralAutoLogin/checkLoggedIn?useformat=mobile&wikiid=enwiki&usesul3=1&type=script | 1 KB | — | ✓ | 3rd |
| https://meta.wikimedia.org/w/index.php?title=Special:BannerLoader&campaign=Coordinate+Me+2026&banner=CoordinateMe2026&uselang=en&debug=false | 5 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
CCompression AlgorithmActionMain response served uncompressedREVIEW
Compression Algorithm
ActionMain response served uncompressed
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
BHTTP Cachingprivate, s-maxage=0, max-age=0, must-revalidate, no-transformREVIEW
HTTP Caching
private, s-maxage=0, max-age=0, must-revalidate, no-transform
private, s-maxage=0, max-age=0, must-revalidate, no-transform
Info::
Cache-Control header is set
Got: private, s-maxage=0, max-age=0, must-revalidate, no-transform
Info::
Last-Modified header present
Cache-Control
private, s-maxage=0, max-age=0, must-revalidate, no-transform
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| s-maxage | 0 | CDN caches for 0 seconds |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
| no-transform | — |
A+Page Weight Budget557 KB transferred, 38 requestsPASS
Page Weight Budget
557 KB transferred, 38 requests
557 KB transferred, 38 requests
Info::
Page weighs 2.1 MB (557 KB transferred)
Info::
38 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
557 KB transferred
38 requests
0.11 g CO2 per page load
JavaScript 248.8 KiB 45%
HTML 148.8 KiB 27%
Images 129.2 KiB 23%
CSS 23.4 KiB 4%
Other 4.8 KiB 1%
Other 1.8 KiB 0%
0 2.4 MB 4.9 MB
Under budget
AThird-Party Impact21% third-party, 0 ms blockingPASS
Third-Party Impact
21% third-party, 0 ms blocking
21% third-party, 0 ms blocking
Info::
Third-party code accounts for 21% of page weight (114.7 KiB of 556.7 KiB)
Info::
Third-party blocking time is low (0 ms)
79%
21%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Font LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints3 hints, 0 missing preconnectsPASS
Resource Hints
3 hints, 0 missing preconnects
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)
Current Resource Hints
preconnect 1
preload—
dns-prefetch 2
prefetch—
3 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: private, s-maxage=0, max-age=0, must-revalidate, no-transform
A+Server-Timing Observability2 Server-Timing entries advertisedPASS
Server-Timing Observability
2 Server-Timing entries advertised
2 Server-Timing entries advertised
Info::
Server-Timing header advertises 2 timing entries
A+Page Weight Inventory38 resources · 557 KB · 80 KB savings availablePASS
Page Weight Inventory
38 resources · 557 KB · 80 KB savings available
38 resources · 557 KB · 80 KB savings available
Info::
Within 1MB page-weight target
Got: 557 KB
Info::
~80 KB of savings available
Info::
13 third-party resources (21% of weight)
Info::
1 resources over 200KB
38 resources · 556.7 KiB · 13 third-party Within 1MB page-weight target
JavaScript 45% · 248.8 KiB
Document 27% · 149.7 KiB
Image 24% · 133.0 KiB
CSS 4% · 23.4 KiB
Other 0% · 1.8 KiB
~79.6 KiB of savings available
Remove unused JavaScript: 79.6 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 38 resources | 556.7 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
JavaScript Blocking
No render-blocking JS or document.write usage detected
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Network Waterfall38 requests over 888msINFO
Network Waterfall
38 requests over 888ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
24% of JavaScript execution is third-party
First-party Third-party 751ms · 0KB · €2/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 751ms | 0 KB | — | €2/mo | Costly |
Unattributable
Other
Execution 751ms
Transfer 0 KB
Monthly Cost €2/mo
These scripts may cost more than they're worth
- Unattributable adds 751ms and costs ~€2/month
Unattributable takes 751ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-04-10 — 2026-05-07)
LCP (p75)
1013 ms
95% good
INP (p75)
87 ms
94% good
CLS (p75)
0.000
92% good
FCP (p75)
992 ms
TTFB (p75)
483 ms
This origin passes Core Web Vitals assessment
Image Optimization57 images, 600 KB total, 51 KB wastedINFO
Image Optimization
57 images, 600 KB total, 51 KB wasted
Image Optimization Audit
Total Images
57
Total Size
600 KB
Oversized
13
Wasted
51 KB
22 missing alt text 1 missing dimensions 49 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.