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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
4
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

1.03 s

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

1.20 s

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

26 ms

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

0.022

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

2.24 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.

2.60 s

Page Load Progression

386 ms
773 ms
1.2 s
1.5 s
1.9 s
2.3 s
2.7 s
3.1 s
Checks
15
7 PASS 2 REVIEW 4 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.8 MiB of 1.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
21 scripts, 311 KB unused
FIX
21 scripts, 311 KB unused
Warning::
https://cmpv2.cio.com/Notice.8f529.js: 61 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-NW6D...: 60 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NN4...: 58 KB unused (28%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.cio.com/_static/??-eJydj90KwjAMRl/IrOr...: 37 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.cio.com/_static/??-eJylkNsOgjAMhl/IOg8...: 30 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 311 KB
311 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cmpv2.cio.com/Notice.8f529.js91 KB61 KB (67%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-NW6DGNR3MQ&cx=c&gtm=4e64h1148 KB60 KB (40%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NN43QC7W209 KB58 KB (28%)✓3rd
https://www.cio.com/_static/??-eJydj90KwjAMRl/IrOrY5o34LP0JW0bb1SZl7O0t6kCvBCHwQfg4OVFrArtEwSjKeqoBoUDyZaTIitwIMlF2kHSWTTliUWwzJWE1r8nrDXMz80H9j0kZDTnQjncQReuLw3qhzr1g3t7RBIo/SxBozFrws7yryYQBXz7mbMBoRnjuvpVsYVlC/cALMXq0UkG3cD0NQ9923eXYzw9Ah3RJ63 KB37 KB (59%)✓3rd
https://www.cio.com/_static/??-eJylkNsOgjAMhl/IOg8BvDE+S3cQhmNb1oLy9g4uiCYSE71q8iff178V9wgqeDaehXI2D+h6iK6vrSdhdQ3c2KQhYuJRaEssSCUbmcQ1zZwGmdDrGIhBuqBu25Y24kXLjekMCWUDyIME1VinYQ7ffdjiwwXUUCObvDELacU19ZpcEsl8Usnea2d+hJce/zRYJGbI1K+WAdMIClWzdsvXp85Rhi/deV9V5bEoTruyfQKfC7le52 KB30 KB (57%)✓3rd
https://macro.adnami.io/macro/gen/adsm.macro.rmb.js25 KB22 KB (88%)✓3rd
https://www.cio.com/wp-content/client-mu-plugins/idg-third-party/dist/scripts/index.js?ver=177635580638 KB22 KB (57%)✓3rd
https://cmpv2.cio.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js42 KB21 KB (52%)✓3rd
https://cmpv2.cio.com/unified/wrapperMessagingWithoutDetection.js42 KB—✓3rd
https://www.cio.com/_static/??-eJylzzELwkAMBeA/5DUq2OogDg6duoi459p4ptxdShMU/71FwV27hvc+XuAxuFayUTawGyVS4C44v/bOo5J73yCyB21HHkyhlTRInvLuKmI0Fr0u4HclompRkzWYMcxTToRdIyP9aXz/yXjngMaS56w5SwiRjp/mhZU9R7bnRB7SflVV5bLabctN/wJW3Iqu12 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

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

D
Page Weight Inventory
Action
65 resources · 1.8 MB · 311 KB savings available
FIX
65 resources · 1.8 MB · 311 KB savings available
Warning::
Page weight 844 KB over 1MB target
Got: 1.8 MB Expected: ≤ 1 MB
Info::
~311 KB of savings available
Warning::
64 third-party resources (100% of weight)
Info::
2 resources over 200KB
65 resources · 1.8 MiB · 64 third-party 844.4 KiB over 1MB target
JavaScript 44% · 829.9 KiB
Image 36% · 672.1 KiB
Font 8% · 154.9 KiB
CSS 6% · 111.0 KiB
Document 4% · 81.7 KiB
Other 1% · 18.9 KiB

~310.6 KiB of savings available

Remove unused JavaScript: 310.6 KiB
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.

C
Page Weight Budget
Action
1.8 MB transferred, 65 requests
REVIEW
1.8 MB transferred, 65 requests
Info::
Page weighs 5.2 MB (1.8 MB transferred)
Warning::
JavaScript is 829 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 829 KB
Info::
65 HTTP requests
Info::
Estimated 0.38 g CO2 per page load
1.8 MB / 2.4 MB budget
1.8 MB transferred
65 requests
0.38 g CO2 per page load
JavaScript 829.3 KiB 44%
Images 624.4 KiB 33%
Fonts 154.9 KiB 8%
CSS 111.0 KiB 6%
HTML 81.3 KiB 4%
Other 47.7 KiB 3%
Other 13.9 KiB 1%
Other 6.0 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

B
JS Execution Cost
795ms total JS execution
REVIEW
795ms total JS execution
Warning::
https://www.cio.com/: 324ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-NN4...: 159ms CPU time
Info::
Unattributable: 133ms CPU time
Info::
https://cmpv2.cio.com/Notice.8f529.js: 92ms CPU time
Info::
https://cmpv2.cio.com/unified/wrapperMessagingWith...: 86ms CPU time
Warning::
Third-party scripts: 795ms (100% of total)

Main Thread Breakdown

Script Evaluation 46% Style & Layout 20% Other 16% Script Parsing & Compilation 8% Parse HTML & CSS 6% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.cio.com/324ms39ms9ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NN43QC7W159ms129ms20ms3rd
Unattributable133ms6ms0ms3rd
https://cmpv2.cio.com/Notice.8f529.js92ms73ms7ms3rd
https://cmpv2.cio.com/unified/wrapperMessagingWithoutDetection.js86ms73ms3ms3rd
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+
Image Optimization
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Warning::
https://www.cio.com/wp-content/uploads/2025/09/sta... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
5 images 624 KB
0 oversized -0 KB
0 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

A+
Font Loading
5 fonts (155 KB)
PASS
5 fonts (155 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

155 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.0 s LCP 1.2 shttps://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/graphik-500.woff2graphik-500.woff2 https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/graphik-500.woff2 — 42.0 KiB — 25 ms — font-display: swaphttps://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/graphik-400.woff2graphik-400.woff2 https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/graphik-400.woff2 — 38.1 KiB — 35 ms — font-display: swaphttps://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/regis-400.woff2regis-400.woff2 https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/static/assets/fonts/cio/regis-400.woff2 — 25.9 KiB — 31 ms — font-display: swaphttps://use.typekit.net/af/bdcff7/00000000000000007735bc61/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n5&v=3l https://use.typekit.net/af/bdcff7/00000000000000007735bc61/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n5&v=3 — 24.5 KiB — 17 ms — font-display: swaphttps://use.typekit.net/af/e34097/00000000000000007735bc72/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/e34097/00000000000000007735bc72/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 24.4 KiB — 12 ms — font-display: swap
graphik-500.woff2 woff2 swap
Size 42 KB
Load time 25 ms
Start 2.1 s
Risk FOUT — text flashes from fallback to web font
graphik-400.woff2 woff2 swap
Size 38 KB
Load time 35 ms
Start 2.1 s
Risk FOUT — text flashes from fallback to web font
regis-400.woff2 woff2 swap
Size 26 KB
Load time 31 ms
Start 2.1 s
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 25 KB
Load time 17 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 24 KB
Load time 12 ms
Start 2.3 s
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)
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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
65 requests over 3144ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.0 s LCP 1.2 shttps://cio.com// https://cio.com/ — 301 — 396 B — 70 ms — h2https://www.cio.com/www.cio.com/ https://www.cio.com/ — 200 — 79.0 KiB — 1.7 s — h2https://www.cio.com/wp-includes/css/dist/block-library/style.min.css?ver=6.8.5www.cio.com/wp-includes/css/dist/bl... https://www.cio.com/wp-includes/css/dist/block-library/style.min.css?ver=6.8.5 — 200 — 15.4 KiB — 24 ms — h2https://www.cio.com/wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css?ver=4.2.17www.cio.com/wp-includes/js/mediaele... https://www.cio.com/wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css?ver=4.2.17 — 200 — 2.6 KiB — 31 ms — h2https://www.cio.com/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.8.5www.cio.com/wp-includes/js/mediaele... https://www.cio.com/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.8.5 — 200 — 1.2 KiB — 31 ms — h2https://www.cio.com/wp-content/mu-plugins/search/elasticpress/dist/css/related-posts-block-styles.min.css?ver=4.2.2www.cio.com/wp-content/mu-plugins/s... https://www.cio.com/wp-content/mu-plugins/search/elasticpress/dist/css/related-posts-block-styles.min.css?ver=4.2.2 — 200 — 235 B — 76 ms — h2https://www.cio.com/wp-content/client-mu-plugins/idg-editions/dist/styles/main.css?ver=0.1.0www.cio.com/wp-content/client-mu-pl... https://www.cio.com/wp-content/client-mu-plugins/idg-editions/dist/styles/main.css?ver=0.1.0 — 200 — 1.0 KiB — 34 ms — h2https://www.cio.com/wp-content/client-mu-plugins/idg-third-party/dist/styles/index.css?ver=1776355806www.cio.com/wp-content/client-mu-pl... https://www.cio.com/wp-content/client-mu-plugins/idg-third-party/dist/styles/index.css?ver=1776355806 — 200 — 1.3 KiB — 31 ms — h2https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/jwplayer.css?ver=1776355807www.cio.com/wp-content/themes/idg-b... https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/jwplayer.css?ver=1776355807 — 200 — 937 B — 42 ms — h2https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/shared.css?ver=1776355807www.cio.com/wp-content/themes/idg-b... https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/shared.css?ver=1776355807 — 200 — 1.8 KiB — 36 ms — h2https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/bundle.css?ver=1776355807www.cio.com/wp-content/themes/idg-b... https://www.cio.com/wp-content/themes/idg-b2b-base-theme/dist/styles/bundle.css?ver=1776355807 — 200 — 59.1 KiB — 70 ms — h2https://www.cio.com/wp-content/themes/cio-b2b-child-theme/dist/styles/amp.css?ver=1776355806www.cio.com/wp-content/themes/cio-b... https://www.cio.com/wp-content/themes/cio-b2b-child-theme/dist/styles/amp.css?ver=1776355806 — 200 — 58 B — 54 ms — h2https://www.cio.com/wp-content/mu-plugins/jetpack-12.8/css/jetpack.css?ver=12.8.2www.cio.com/wp-content/mu-plugins/j... https://www.cio.com/wp-content/mu-plugins/jetpack-12.8/css/jetpack.css?ver=12.8.2 — 200 — 18.5 KiB — 63 ms — h2https://www.cio.com/wp-includes/js/dist/hooks.min.js?m=1774626878gwww.cio.com/wp-includes/js/dist/hoo... https://www.cio.com/wp-includes/js/dist/hooks.min.js?m=1774626878g — 200 — 1.7 KiB — 61 ms — h2https://www.cio.com/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6www.cio.com/wp-includes/js/dist/i18... https://www.cio.com/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6 — 200 — 3.7 KiB — 59 ms — h2https://www.cio.com/wp-content/client-mu-plugins/idg-editions/dist/scripts/editions-front.js?m=1776355806gwww.cio.com/wp-content/client-mu-pl... https://www.cio.com/wp-content/client-mu-plugins/idg-editions/dist/scripts/editions-front.js?m=1776355806g — 200 — 62 B — 57 ms — h2https://www.cio.com/wp-content/client-mu-plugins/idg-third-party/dist/scripts/index.js?ver=1776355806www.cio.com/wp-content/client-mu-pl... https://www.cio.com/wp-content/client-mu-plugins/idg-third-party/dist/scripts/index.js?ver=1776355806 — 200 — 37.5 KiB — 74 ms — h2https://www.cio.com/_static/??-eJydj90KwjAMRl/IrOrY5o34LP0JW0bb1SZl7O0t6kCvBCHwQfg4OVFrArtEwSjKeqoBoUDyZaTIitwIMlF2kHSWTTliUWwzJWE1r8nrDXMz80H9j0kZDTnQjncQReuLw3qhzr1g3t7RBIo/SxBozFrws7yryYQBXz7mbMBoRnjuvpVsYVlC/cALMXq0UkG3cD0NQ9923eXYzw9Ah3RJwww.cio.com/_static/??-eJydj90KwjAM... https://www.cio.com/_static/??-eJydj90KwjAMRl/IrOrY5o34LP0JW0bb1SZl7O0t6kCvBCHwQfg4OVFrArtEwSjKeqoBoUDyZaTIitwIMlF2kHSWTTliUWwzJWE1r8nrDXMz80H9j0kZDTnQjncQReuLw3qhzr1g3t7RBIo/SxBozFrws7yryYQBXz7mbMBoRnjuvpVsYVlC/cALMXq0UkG3cD0NQ9923eXYzw9Ah3RJ — 200 — 62.8 KiB — 77 ms — h2https://cp.cio.com/now.jscp.cio.com/now.js https://cp.cio.com/now.js — 200 — 35.2 KiB — 141 ms — h2https://www.cio.com/wp-content/uploads/2026/04/4159326-0-96106000-1776765914-shutterstock_359935604-100942769-orig.jpg?resize=1536%2C1021&quality=50&strip=allwww.cio.com/wp-content/uploads/2026... https://www.cio.com/wp-content/uploads/2026/04/4159326-0-96106000-1776765914-shutterstock_359935604-100942769-orig.jpg?resize=1536%2C1021&quality=50&strip=all — 200 — 87.7 KiB — 65 ms — h2https://use.typekit.net/jyp5fuy.css?ver=1.0.0use.typekit.net/jyp5fuy.css?ver=1.0... https://use.typekit.net/jyp5fuy.css?ver=1.0.0 — 200 — 899 B — 61 ms — h2https://www.cio.com/_static/??-eJylkNsOgjAMhl/IOg8BvDE+S3cQhmNb1oLy9g4uiCYSE71q8iff178V9wgqeDaehXI2D+h6iK6vrSdhdQ3c2KQhYuJRaEssSCUbmcQ1zZwGmdDrGIhBuqBu25Y24kXLjekMCWUDyIME1VinYQ7ffdjiwwXUUCObvDELacU19ZpcEsl8Usnea2d+hJce/zRYJGbI1K+WAdMIClWzdsvXp85Rhi/deV9V5bEoTruyfQKfC7lewww.cio.com/_static/??-eJylkNsOgjAM... 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https://pagead2.googlesyndication.com/ccm/collect?rcb=2&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fwww.cio.com%2F&scrsrc=www.googletagmanager.com&rnd=40179144.1776805370&navt=n&npa=1&gdpr=1&gdpr_consent=CQjA2wAQjA2wAAGABCENCYFgAAAAAEPAAAiQAAAUhgIAAKAAqACQAFQAPwA0ACEAHIAO4AfoBBwCLAHbAlSBMECkIBASAEAO4Afo8AEACoAH5CACAO4iABABUSAAgAkKAAQCDlQAQACgAVFoAIA7gAAA.IKQwMoAFAAWAA0ACoAGQAOAAgABIACoAFoAMgAaAA_ACKAEwALYAXgAwgBoAD8AICAQYBCAChAFIANIAaoA5AB3AD2AH6AQMAg4BFgCSgEwALSAXUA0wB2wD-AJkAW8AvMBjIDJAGYANdAjMBKkCYIFIQAAA.YAAAAAAAAAAA&ep.ads_data_redaction=0&gtm=45He64h1v9220693796za200zd9220693796xea&gcs=G10-&gcd=13m3l3m2m5l1&dma_cps=-&dma=1&tcfd=1065b&tag_exp=0~115616986~115938466~115938469~117266400~118463801&apve=1&apvf=f&apvc=1&tft=1776805370397&tfd=2771 — 200 — 21 B — 74 ms — h3https://cmpv2.cio.com/index.html?hasCsp=true&message_id=1467394&consentUUID=null&consent_origin=https%3A%2F%2Fcmpv2.cio.com%2Fconsent%2Ftcfv2&preload_message=true&version=v1cmpv2.cio.com/index.html?hasCsp=tru... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 795ms · 421KB · $14/mo
www.cio.com
Other
Costly
Execution 324ms
Transfer 79 KB
Monthly Cost $6/mo
Google Tag Manager
Tag Manager
Optional
Execution 159ms
Transfer 209 KB
Unused 28%
Monthly Cost $3/mo
Unattributable
Other
Optional
Execution 133ms
Transfer 0 KB
Monthly Cost $2/mo
cmpv2.cio.com
Other
Optional
Execution 92ms
Transfer 91 KB
Unused 67%
Monthly Cost $2/mo
cmpv2.cio.com
Other
Optional
Execution 86ms
Transfer 42 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.cio.com adds 324ms and costs ~$6/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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.cio.com takes 324ms 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

67% of cmpv2.cio.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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