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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
2
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
25
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.81 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

9.14 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

6.82 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.060

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

16.52 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.

46.14 s

Page Load Progression

2.7 s
5.4 s
8.2 s
10.9 s
13.6 s
16.3 s
19.0 s
21.8 s
Checks
16
7 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
14.0 MB transferred, 204 requests
FIX
14.0 MB transferred, 204 requests
Critical::
Page weighs 43.1 MB (14.0 MB transferred)
Warning::
JavaScript is 5.8 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 5.8 MB
Info::
CSS is 530 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 530 KB
Info::
Fonts are 508 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 508 KB
Warning::
204 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.9 g CO2 per page load
14.0 MB / 2.4 MB budget
14.0 MB transferred
204 requests
2.9 g CO2 per page load
Other 6.4 MiB 46%
JavaScript 5.8 MiB 41%
Images 715.8 KiB 5%
CSS 530.0 KiB 4%
Fonts 508.5 KiB 4%
Other 65.0 KiB 0%
HTML 43.8 KiB 0%
Other 3.0 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

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.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
75% third-party, 0 ms blocking
FIX
75% third-party, 0 ms blocking
Warning::
Third-party code accounts for 75% of page weight (10.5 MiB of 14.0 MiB)
Info::
Third-party blocking time is low (0 ms)
25%
75%
First-party Third-party
F
JS Execution Cost
Action
29969ms total JS execution
FIX
29969ms total JS execution
Warning::
https://www.ibm.com/us-en: 11289ms CPU time
Warning::
https://cdnapisec.kaltura.com/html5/html5lib/v2.10...: 3462ms CPU time
Warning::
Unattributable: 2545ms CPU time
Warning::
https://www.ibm.com/account/ibmidutil/widget/js/ma...: 1128ms CPU time
Warning::
https://www.ibm.com/etc.clientlibs/adobe-cms/clien...: 908ms CPU time
Info::
Third-party scripts: 11354ms (38% of total)

Main Thread Breakdown

Script Evaluation 36% Other 27% Style & Layout 20% Script Parsing & Compilation 10% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://www.ibm.com/us-en11289ms345ms12ms1st
https://cdnapisec.kaltura.com/html5/html5lib/v2.101/load.php?debug=false&lang=en&modules=Hlsjs%2CPolyfill_Set%2CacCheck%2CacPreview%2CaudioSelector%2Cbase64_decode%2Cbase64_encode%2Cchapters%2Cclass%2CclosedCaptions%2CcontrolBarContainer%2CcurrentTimeLabel%2Cdotdotdot%2CdualScreen%2CdurationLabel%2CfullScreenBtn%2Cid3Tag%2CjCarouse%2CkAnalony%2Ckdark%2CkeyboardShortcuts%2CkgitGuard%2ClargePlayBtn%2CliveStream%2CmatchMedia%2CmorePlugins%2CnanoScroller%2CnativeBridge%2CplayPauseBtn%2CplaybackRateSelectorPlugin%2Cpolyfill_Array_filter%2Cpolyfill_Array_forEach%2CqualitySettings%2CreportError%2Cscreenfull%2Cscrubber%2Cshare%2CsideBarContainer%2CsourceSelector%2CstreamSelector%2Ctheme%2CtitleLabel%2CtopBarContainer%2CtouchSwipe%2Ctypeahead%2CunMuteOverlayButton%2Cutf8_encode%2CvolumeControl%7Cjquery.client%2Ccolor%2Ccookie%2Cdebouncedresize%2ChoverIntent%2CmessageBox%2CmwEmbedUtil%2CmwExtension%2CnaturalSize%7Cjquery.ui.core%2Cdraggable%2Cdroppable%2Cmouse%2Cposition%2Cresizable%2Cslider%2Ctooltip%2CtouchPunch%2Cwidget%7Cmediawiki.Uri%2CUtilitiesTime%2CUtilitiesUrl%2Cclient%2CjqueryMsg%2Ckmenu%2Clanguage%2Cutil%7Cmediawiki.util.tmpl%7Cmw.EmbedPlayer%2CEmbedPlayerImageOverlay%2CEmbedPlayerKplayer%2CEmbedPlayerNative%2CEmbedPlayerNativeComponent%2CEmbedTypes%2CKBaseButton%2CKBaseComponent%2CKBaseMediaList%2CKBasePlugin%2CKBaseScreen%2CKBaseSmartContainer%2CKCuePoints%2CKDPMapping%2CKEntryLoader%2CKPushServerNotification%2CKWidgetSupport%2CKalturaIframePlayerSetup%2CMediaElement%2CMediaPlayer%2CMediaPlayers%2CMediaSource%2CPlayerElement%2CPlayerElementFlash%2CPlayerElementHTML%2CPluginManager%2CTextSource%2CajaxProxy%7Cmw.Language.names%7Cmw.MwEmbedSupport.style%7Csocket.io%7Cvtt.js&pskwidgetpath=..%2Fkwidget-ps%2F&skin=no-theme&version=20260405T141852Z&*&protocol=https&wid=_17738413462ms2562ms359ms3rd
Unattributable2545ms134ms0ms3rd
https://www.ibm.com/account/ibmidutil/widget/js/main.js1128ms857ms199ms1st
https://www.ibm.com/etc.clientlibs/adobe-cms/clientlibs/clientlib-caem-video-player.lc-a78a05617af4f81111cdc202d3dc9cd5-lc.min.js908ms280ms69ms1st
https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/chat~cds-ai-chat-styles-reset.js889ms441ms124ms3rd
https://1.www.s81c.com/common/stats/ibm-common.js887ms773ms36ms3rd
https://1.www.s81c.com/cognitive-tooling-unified-chat/v1/webchat.bundle.js?version=2.0867ms537ms303ms3rd
https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/chat~cds-ai-chat-render.js849ms307ms192ms3rd
https://www.ibm.com/hRvo6h/Ynf/d5i/ctPvLWea/Ef9hJtkLtfLkDt/YnB5eA/JS0f/GRJMYnUB736ms677ms41ms1st

Showing top 10 of 37 scripts

F
JS Bundles
Action
99 scripts, 1.8 MB unused
FIX
99 scripts, 1.8 MB unused
Warning::
https://cdnapisec.kaltura.com/html5/html5lib/v2.10...: 719 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://1.www.s81c.com/cognitive-tooling-unified-c...: 511 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ibm.com/account/ibmidutil/widget/js/ma...: 91 KB unused (20%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cloud.ibm.com/analytics/build/bluemix-anal...: 88 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ibm.com/etc.clientlibs/adobe-cms/clien...: 59 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.8 MB
1849 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdnapisec.kaltura.com/html5/html5lib/v2.101/load.php?debug=false&lang=en&modules=Hlsjs%2CPolyfill_Set%2CacCheck%2CacPreview%2CaudioSelector%2Cbase64_decode%2Cbase64_encode%2Cchapters%2Cclass%2CclosedCaptions%2CcontrolBarContainer%2CcurrentTimeLabel%2Cdotdotdot%2CdualScreen%2CdurationLabel%2CfullScreenBtn%2Cid3Tag%2CjCarouse%2CkAnalony%2Ckdark%2CkeyboardShortcuts%2CkgitGuard%2ClargePlayBtn%2CliveStream%2CmatchMedia%2CmorePlugins%2CnanoScroller%2CnativeBridge%2CplayPauseBtn%2CplaybackRateSelectorPlugin%2Cpolyfill_Array_filter%2Cpolyfill_Array_forEach%2CqualitySettings%2CreportError%2Cscreenfull%2Cscrubber%2Cshare%2CsideBarContainer%2CsourceSelector%2CstreamSelector%2Ctheme%2CtitleLabel%2CtopBarContainer%2CtouchSwipe%2Ctypeahead%2CunMuteOverlayButton%2Cutf8_encode%2CvolumeControl%7Cjquery.client%2Ccolor%2Ccookie%2Cdebouncedresize%2ChoverIntent%2CmessageBox%2CmwEmbedUtil%2CmwExtension%2CnaturalSize%7Cjquery.ui.core%2Cdraggable%2Cdroppable%2Cmouse%2Cposition%2Cresizable%2Cslider%2Ctooltip%2CtouchPunch%2Cwidget%7Cmediawiki.Uri%2CUtilitiesTime%2CUtilitiesUrl%2Cclient%2CjqueryMsg%2Ckmenu%2Clanguage%2Cutil%7Cmediawiki.util.tmpl%7Cmw.EmbedPlayer%2CEmbedPlayerImageOverlay%2CEmbedPlayerKplayer%2CEmbedPlayerNative%2CEmbedPlayerNativeComponent%2CEmbedTypes%2CKBaseButton%2CKBaseComponent%2CKBaseMediaList%2CKBasePlugin%2CKBaseScreen%2CKBaseSmartContainer%2CKCuePoints%2CKDPMapping%2CKEntryLoader%2CKPushServerNotification%2CKWidgetSupport%2CKalturaIframePlayerSetup%2CMediaElement%2CMediaPlayer%2CMediaPlayers%2CMediaSource%2CPlayerElement%2CPlayerElementFlash%2CPlayerElementHTML%2CPluginManager%2CTextSource%2CajaxProxy%7Cmw.Language.names%7Cmw.MwEmbedSupport.style%7Csocket.io%7Cvtt.js&pskwidgetpath=..%2Fkwidget-ps%2F&skin=no-theme&version=20260405T141852Z&*&protocol=https&wid=_17738411025 KB719 KB (70%)✓3rd
https://1.www.s81c.com/cognitive-tooling-unified-chat/v1/webchat.bundle.js?version=2.0743 KB511 KB (69%)✓3rd
https://www.ibm.com/account/ibmidutil/widget/js/main.js449 KB91 KB (20%)✓1st
https://cloud.ibm.com/analytics/build/bluemix-analytics.min.js114 KB88 KB (77%)✓3rd
https://www.ibm.com/etc.clientlibs/adobe-cms/clientlibs/clientlib-idlStyles.lc-8eb92c78ab6b12e247c04eb88405c135-lc.min.js82 KB59 KB (73%)✓1st
https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/chat~cds-ai-chat-bootstrap.js102 KB55 KB (54%)✓3rd
https://tags.tiqcdn.com/utag/ibm/web/prod/utag.js90 KB49 KB (55%)✓3rd
https://www.ibm.com/hRvo6h/Ynf/d5i/ctPvLWea/Ef9hJtkLtfLkDt/YnB5eA/JS0f/GRJMYnUB176 KB37 KB (21%)✓1st
https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/chat~cds-ai-chat-render.js235 KB36 KB (15%)✓3rd
https://1.www.s81c.com/common/stats/ibm-common.js83 KB34 KB (41%)✓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

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

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

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

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

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Info::
All images are well-optimized
16 images 716 KB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
17 fonts (508 KB)
PASS
17 fonts (508 KB)
Info::
17 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

17

508 KB total

Render-blocking

0

of 17

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 7.8 s LCP 9.1 shttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin1.woff2IBMPlexSans-Regular-Lat... https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin1.woff2 — 20.8 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-SemiBold-Latin1.woff2IBMPlexSans-SemiBold-La... https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-SemiBold-Latin1.woff2 — 22.0 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Mono/fonts/split/woff2/IBMPlexMono-Regular-Latin1.woff2IBMPlexMono-Regular-Lat... https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Mono/fonts/split/woff2/IBMPlexMono-Regular-Latin1.woff2 — 17.2 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/complete/woff2/IBMPlexSans-Light.woff2IBMPlexSans-Light.woff2 https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/complete/woff2/IBMPlexSans-Light.woff2 — 65.1 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/complete/woff2/IBMPlexSans-Regular.woff2IBMPlexSans-Regular.woff2 https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/complete/woff2/IBMPlexSans-Regular.woff2 — 61.9 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Light-Latin1.woff2IBMPlexSans-Light-Latin... https://1.www.s81c.com/common/carbon/plex/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Light-Latin1.woff2 — 22.0 KiB — 0 ms — font-display: swaphttps://consent.trustarc.com/get?name=IBM_PlexSans-SemiBold.ttfget https://consent.trustarc.com/get?name=IBM_PlexSans-SemiBold.ttf — 80.5 KiB — 0 ms — font-display: swaphttps://consent.trustarc.com/get?name=IBM_PlexSans-Regular.ttfget https://consent.trustarc.com/get?name=IBM_PlexSans-Regular.ttf — 76.1 KiB — 0 ms — font-display: swaphttps://1.www.s81c.com/common/fonts/plex/v1/ibmplexsans-regular.woff2ibmplexsans-regular.woff2 https://1.www.s81c.com/common/fonts/plex/v1/ibmplexsans-regular.woff2 — 34.7 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin1.woff2IBMPlexSans-Regular-Lat... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin1.woff2 — 16.7 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-SemiBold-Latin1.woff2IBMPlexSans-SemiBold-La... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-SemiBold-Latin1.woff2 — 17.5 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Mono/fonts/split/woff2/IBMPlexMono-Regular-Latin1.woff2IBMPlexMono-Regular-Lat... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Mono/fonts/split/woff2/IBMPlexMono-Regular-Latin1.woff2 — 13.5 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Light-Latin1.woff2IBMPlexSans-Light-Latin... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Light-Latin1.woff2 — 17.4 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin2.woff2IBMPlexSans-Regular-Lat... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin2.woff2 — 14.7 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin3.woff2IBMPlexSans-Regular-Lat... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Latin3.woff2 — 6.8 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Pi.woff2IBMPlexSans-Regular-Pi.... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Pi.woff2 — 7.2 KiB — 0 ms — font-display: swaphttps://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Cyrillic.woff2IBMPlexSans-Regular-Cyr... https://web-chat.global.assistant.watson.appdomain.cloud/versions/8.11.0/fonts/IBM-Plex-Sans/fonts/split/woff2/IBMPlexSans-Regular-Cyrillic.woff2 — 14.6 KiB — 0 ms — font-display: swap
IBMPlexSans-Regular-Lat... woff2 swap
Size 21 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-SemiBold-La... woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexMono-Regular-Lat... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Light.woff2 woff2 swap
Size 65 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular.woff2 woff2 swap
Size 62 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Light-Latin... woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
get ttf swap
Size 80 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
get ttf swap
Size 76 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
ibmplexsans-regular.woff2 woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular-Lat... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-SemiBold-La... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexMono-Regular-Lat... woff2 swap
Size 14 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Light-Latin... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular-Lat... woff2 swap
Size 15 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular-Lat... woff2 swap
Size 7 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular-Pi.... woff2 swap
Size 7 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexSans-Regular-Cyr... woff2 swap
Size 15 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
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 ~47 KB and ~94 ms

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
204 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
38% of JavaScript execution is third-party
First-party Third-party 11354ms · 2817KB · $151/mo
cdnapisec.kaltura.com
Other
Costly
Execution 3462ms
Transfer 1025 KB
Unused 70%
Monthly Cost $46/mo
Unattributable
Other
Costly
Execution 2545ms
Transfer 0 KB
Monthly Cost $34/mo
web-chat.global.assistant.watson.appdomain.cloud
Other
Costly
Execution 889ms
Transfer 138 KB
Monthly Cost $12/mo
1.www.s81c.com
Other
Costly
Execution 887ms
Transfer 83 KB
Unused 41%
Monthly Cost $12/mo
1.www.s81c.com
Other
Costly
Execution 867ms
Transfer 743 KB
Unused 69%
Monthly Cost $12/mo
web-chat.global.assistant.watson.appdomain.cloud
Other
Costly
Execution 849ms
Transfer 235 KB
Unused 15%
Monthly Cost $11/mo
tags.tiqcdn.com
Other
Costly
Execution 394ms
Transfer 90 KB
Unused 55%
Monthly Cost $5/mo
assets.adobedtm.com
Other
Costly
Execution 352ms
Transfer 103 KB
Unused 32%
Monthly Cost $5/mo
consent.trustarc.com
Other
Costly
Execution 211ms
Transfer 16 KB
Monthly Cost $3/mo
consent.trustarc.com
Other
Optional
Execution 190ms
Transfer 36 KB
Unused 58%
Monthly Cost $3/mo
cdnapisec.kaltura.com
Other
Optional
Execution 165ms
Transfer 62 KB
Monthly Cost $2/mo
cdnapisec.kaltura.com
Other
Optional
Execution 143ms
Transfer 22 KB
Monthly Cost $2/mo
web-chat.global.assistant.watson.appdomain.cloud
Other
Optional
Execution 141ms
Transfer 102 KB
Unused 54%
Monthly Cost $2/mo
web-chat.global.assistant.watson.appdomain.cloud
Other
Optional
Execution 139ms
Transfer 48 KB
Monthly Cost $2/mo
cloud.ibm.com
Other
Optional
Execution 117ms
Transfer 114 KB
Unused 77%
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • cdnapisec.kaltura.com adds 3462ms and costs ~$46/month
  • Unattributable adds 2545ms and costs ~$34/month
  • web-chat.global.assistant.watson.appdomain.cloud adds 889ms and costs ~$12/month
  • 1.www.s81c.com adds 887ms and costs ~$12/month
  • 1.www.s81c.com adds 867ms and costs ~$12/month
  • web-chat.global.assistant.watson.appdomain.cloud adds 849ms and costs ~$11/month
  • tags.tiqcdn.com adds 394ms and costs ~$5/month
  • assets.adobedtm.com adds 352ms and costs ~$5/month
  • consent.trustarc.com adds 211ms and costs ~$3/month

cdnapisec.kaltura.com takes 3462ms 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

70% of cdnapisec.kaltura.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

Unattributable takes 2545ms 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

web-chat.global.assistant.watson.appdomain.cloud takes 889ms 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

1.www.s81c.com takes 887ms 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

1.www.s81c.com takes 867ms 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

69% of 1.www.s81c.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

web-chat.global.assistant.watson.appdomain.cloud takes 849ms 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

tags.tiqcdn.com takes 394ms 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

55% of tags.tiqcdn.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

assets.adobedtm.com takes 352ms 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

consent.trustarc.com takes 211ms 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

58% of consent.trustarc.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

54% of web-chat.global.assistant.watson.appdomain.cloud's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

77% of cloud.ibm.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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