https://he.wikipedia.org
Performance
· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
88
GRADE
B
FIX
0
REVIEW
7
PASS
12
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
97
89
100
85
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
614 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.01 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.
0.071
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
817 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.02 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
2312 PASS 7 REVIEW
BThird-Party Impact46% third-party, 0 ms blockingREVIEW
Third-Party Impact
46% third-party, 0 ms blocking
46% third-party, 0 ms blocking
Info::
Third-party code accounts for 46% of page weight (439.6 KiB of 957.4 KiB)
Info::
Third-party blocking time is low (0 ms)
54%
46%
First-party Third-party
BImage Optimization75 images, 0 KB saveableREVIEW
Image Optimization
75 images, 0 KB saveable
75 images, 0 KB saveable
Warning::
https://upload.wikimedia.org/wikipedia/foundation/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
75 images 478 KB
0 oversized -0 KB
60 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
BJS Bundles12 scripts, 136 KB unusedREVIEW
JS Bundles
12 scripts, 136 KB unused
12 scripts, 136 KB unused
Warning::
https://he.wikipedia.org/w/load.php?lang=he&module...: 136 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 136 KB
136 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://he.wikipedia.org/w/load.php?lang=he&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.uls.interface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%2Cui%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=176hy | 277 KB | 136 KB (50%) | ✓ | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=startup&only=scripts&raw=1&skin=vector-2022 | 21 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=ext.gadget.EditToolbar%2CSummarieslist%2CTemplateParamWizard%2CWdsearch%2CcatSexSelector%2Cfeedback%2CrefsToLeft%2Cwikibugs&skin=vector-2022&version=41nb3 | 20 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=ext.visualEditor.core.utils.parsing%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve&skin=vector-2022&version=byepw | 18 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=ext.cite.referencePreviews%7Cext.math.popup%7Cext.popups.main&skin=vector-2022&version=mlo09 | 26 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=mw.config.values.wbCurrentSiteDetails%2CwbRepo%7Coojs-ui.styles.icons-editing-core&skin=vector-2022&version=mzuec | 3 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/index.php?title=MediaWiki:Mainpage.js&action=raw&ctype=text/javascript | 1 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/index.php?title=MediaWiki:Portals.js&action=raw&ctype=text/javascript | 2 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/index.php?title=MediaWiki:Autopurge.js&action=raw&ctype=text/javascript | 2 KB | — | ✓ | 1st |
| https://he.wikipedia.org/w/index.php?title=MediaWiki:Navtip.js&action=raw&ctype=text/javascript | 3 KB | — | ✓ | 1st |
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 Cachings-maxage=1200, must-revalidate, max-age=0REVIEW
HTTP Caching
s-maxage=1200, must-revalidate, max-age=0
s-maxage=1200, must-revalidate, max-age=0
Info::
Cache-Control header is set
Got: s-maxage=1200, must-revalidate, max-age=0
Info::
CDN TTL: 20 minutes (s-maxage=1200)
Info::
Last-Modified header present
Cache-Control
s-maxage=1200, must-revalidate, max-age=0
| Directive | Value | Meaning |
|---|---|---|
| s-maxage | 1200 | CDN caches for 20 minutes |
| must-revalidate | — | Must recheck with server after expiry |
| max-age | 0 | Cache for 0 seconds |
APage Weight Budget957 KB transferred, 96 requestsPASS
Page Weight Budget
957 KB transferred, 96 requests
957 KB transferred, 96 requests
Info::
Page weighs 2.4 MB (957 KB transferred)
Info::
96 HTTP requests
Info::
Estimated 0.20 g CO2 per page load
957 KB transferred
96 requests
0.20 g CO2 per page load
Images 477.8 KiB 50%
JavaScript 375.1 KiB 39%
HTML 67.5 KiB 7%
CSS 29.8 KiB 3%
Other 4.2 KiB 0%
Other 3.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget
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+JS Execution Cost322ms total JS executionPASS
JS Execution Cost
322ms total JS execution
322ms total JS execution
Info::
Unattributable: 103ms CPU time
Info::
https://he.wikipedia.org/w/load.php?lang=he&module...: 98ms CPU time
Info::
https://he.wikipedia.org/wiki/%D7%A2%D7%9E%D7%95%D...: 61ms CPU time
Info::
https://he.wikipedia.org/w/load.php?lang=he&module...: 60ms CPU time
Info::
Third-party scripts: 103ms (32% of total)
Main Thread Breakdown
Script Evaluation 33% Other 33% Style & Layout 17% Script Parsing & Compilation 7% Rendering 5% Parse HTML & CSS 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 103ms | 2ms | 0ms | 3rd |
| https://he.wikipedia.org/w/load.php?lang=he&modules=startup&only=scripts&raw=1&skin=vector-2022 | 98ms | 42ms | 1ms | 1st |
| https://he.wikipedia.org/wiki/%D7%A2%D7%9E%D7%95%D7%93_%D7%A8%D7%90%D7%A9%D7%99 | 61ms | 6ms | 1ms | 1st |
| https://he.wikipedia.org/w/load.php?lang=he&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%2Ccentralautologin%7Cext.checkUser.clientHints%7Cext.cx.eventlogging.campaigns%7Cext.echo.centralauth%7Cext.eventLogging%2Cimagemap%2CnavigationTiming%2Cpopups%2CtestKitchen%2CwikimediaEvents%7Cext.eventLogging.metricsPlatform%7Cext.growthExperiments.SuggestedEditSession%7Cext.uls.interface%2Cpreferences%2Cwebfonts%7Cext.urlShortener.toolbar%7Cext.wikimediaEvents.testKitchen%7Cjquery%2Coojs%2Csite%7Cjquery.client%2CtextSelection%2Cui%7Cmediawiki.ForeignApi%2CString%2CTitle%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Ccodex%7Cskins.vector.clientPreferences%2Cjs%7Cskins.vector.icons.js%7Cwikibase.client.vector-2022%7Cwikibase.databox.fromWikidata&skin=vector-2022&version=176hy | 60ms | 33ms | 21ms | 1st |
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 HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
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: s-maxage=1200, must-revalidate, max-age=0
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+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding,X-Forwarded-Proto,Cookie,Authorization
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
APage Weight Inventory96 resources · 957 KB · 136 KB savings availablePASS
Page Weight Inventory
96 resources · 957 KB · 136 KB savings available
96 resources · 957 KB · 136 KB savings available
Info::
Within 1MB page-weight target
Got: 957 KB
Info::
~136 KB of savings available
Warning::
60 third-party resources (46% of weight)
Info::
1 resources over 200KB
96 resources · 957.4 KiB · 60 third-party Within 1MB page-weight target
Image 50% · 479.6 KiB
JavaScript 39% · 375.1 KiB
Document 7% · 69.9 KiB
CSS 3% · 29.8 KiB
Other 0% · 3.0 KiB
~136.4 KiB of savings available
Remove unused JavaScript: 136.4 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 96 resources | 957.4 KiB | ||||||
Network Waterfall96 requests over 725msINFO
Network Waterfall
96 requests over 725ms
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
32% of JavaScript execution is third-party
First-party Third-party 103ms · 0KB · ₪1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 103ms | 0 KB | — | ₪1/mo | Optional |
Unattributable
Other
Execution 103ms
Transfer 0 KB
Monthly Cost ₪1/mo
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)
1083 ms
97% good
INP (p75)
83 ms
98% good
CLS (p75)
0.000
97% good
FCP (p75)
974 ms
TTFB (p75)
605 ms
This origin passes Core Web Vitals assessment
Image Optimization83 images, 987 KB total, 75 KB wastedINFO
Image Optimization
83 images, 987 KB total, 75 KB wasted
Image Optimization Audit
Total Images
83
Total Size
987 KB
Oversized
12
Wasted
75 KB
51 missing alt text 2 missing dimensions 76 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.