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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
1
PASS
9
INFO
2

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

Mobile Desktop
41
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
87
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.
85
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.

6.13 s

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

15.90 s

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

680 ms

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

0.001

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

8.15 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.

15.99 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 s
Checks
17
9 PASS 1 REVIEW 5 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 (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
3266ms total JS execution
FIX
3266ms total JS execution
Warning::
https://cache.consentframework.com/js/pa/41707/c/V...: 705ms CPU time
Warning::
https://gizmodo.com/io9: 642ms CPU time
Warning::
Unattributable: 521ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-EYNX...: 289ms CPU time
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 273ms CPU time
Warning::
Third-party scripts: 3266ms (100% of total)

Main Thread Breakdown

Script Evaluation 52% Style & Layout 17% Other 16% Script Parsing & Compilation 10% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://cache.consentframework.com/js/pa/41707/c/V2Sw7/cmp705ms459ms120ms3rd
https://gizmodo.com/io9642ms43ms14ms3rd
Unattributable521ms91ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-EYNXLD4983&cx=c&gtm=4e64k0289ms247ms41ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946273ms205ms48ms3rd
https://scripts.opti-digital.com/lib/?site=gizmodo&lib=launcher&v=5.3.9188ms118ms2ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-W5PBFP3X153ms127ms25ms3rd
https://cds.connatix.com/p/324082750/connatix.player.js?cid=872d12ce-453b-4870-845f-955919887e1b&pid=92b7b46b-43ed-4e0e-b21b-2c999302d9d7137ms89ms47ms3rd
https://cache.consentframework.com/js/pa/41707/c/V2Sw7/stub103ms85ms1ms3rd
https://gizmodo.com/app/themes/gizmodo/public/vendor/app.9e12ed.js81ms47ms1ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
24 scripts, 508 KB unused
FIX
24 scripts, 508 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 127 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cds.connatix.com/p/324082750/connatix.play...: 95 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://scripts.opti-digital.com/lib/?site=gizmodo...: 77 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-EYNX...: 65 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-W5P...: 60 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 508 KB
508 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946187 KB127 KB (68%)✓3rd
https://cds.connatix.com/p/324082750/connatix.player.js?cid=872d12ce-453b-4870-845f-955919887e1b&pid=92b7b46b-43ed-4e0e-b21b-2c999302d9d7139 KB95 KB (68%)✓3rd
https://scripts.opti-digital.com/lib/?site=gizmodo&lib=launcher&v=5.3.9101 KB77 KB (76%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-EYNXLD4983&cx=c&gtm=4e64k0157 KB65 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-W5PBFP3X120 KB60 KB (50%)✓3rd
https://cache.consentframework.com/js/pa/41707/c/V2Sw7/cmp333 KB33 KB (11%)✓3rd
https://sdk.mrf.io/statics/marfeel-sdk.js?id=601759 KB30 KB (51%)✓3rd
https://gizmodo.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.131 KB22 KB (70%)✓3rd
https://gizmodo.com/app/plugins/simple-tags/assets/frontend/js/frontend.js?ver=3.26.01 KB—✓3rd
https://gizmodo.com/wp/wp-includes/js/comment-reply.min.js?ver=6.5.82 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

F
Page Weight Inventory
Action
66 resources · 2.1 MB · 508 KB savings available
FIX
66 resources · 2.1 MB · 508 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~508 KB of savings available
Warning::
65 third-party resources (100% of weight)
Info::
1 resources over 200KB
66 resources · 2.1 MiB · 65 third-party 1.1 MiB over 1MB target
JavaScript 58% · 1.2 MiB
Image 25% · 528.9 KiB
Font 10% · 215.1 KiB
Document 3% · 58.8 KiB
CSS 2% · 51.5 KiB
Other 1% · 28.0 KiB

~508.4 KiB of savings available

Remove unused JavaScript: 508.4 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
2.1 MB transferred, 66 requests
REVIEW
2.1 MB transferred, 66 requests
Info::
Page weighs 5.4 MB (2.1 MB transferred)
Warning::
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Info::
Fonts are 215 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 215 KB
Info::
66 HTTP requests
Info::
Estimated 0.43 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
66 requests
0.43 g CO2 per page load
JavaScript 1.2 MiB 58%
Images 518.8 KiB 25%
Fonts 215.1 KiB 10%
HTML 58.4 KiB 3%
CSS 51.5 KiB 2%
Other 33.5 KiB 2%
Other 2.4 KiB 0%
Other 1.9 KiB 0%
Other 738 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

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

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
18 images, 0 KB saveable
PASS
18 images, 0 KB saveable
Info::
All images are well-optimized
18 images 519 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (215 KB)
PASS
4 fonts (215 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

215 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 6.1 s LCP 15.9 shttps://gizmodo.com/app/themes/gizmodo/public/fonts/space-grotesk.20aec3.woff2space-grotesk.20aec3.woff2 https://gizmodo.com/app/themes/gizmodo/public/fonts/space-grotesk.20aec3.woff2 — 22.3 KiB — 33 ms — font-display: swaphttps://gizmodo.com/app/themes/gizmodo/public/fonts/sofia-sans.18ddf5.woff2sofia-sans.18ddf5.woff2 https://gizmodo.com/app/themes/gizmodo/public/fonts/sofia-sans.18ddf5.woff2 — 40.1 KiB — 32 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/webfonts/fa-solid-900.woff2 — 77.1 KiB — 69 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/webfonts/fa-brands-400.woff2 — 75.6 KiB — 43 ms — font-display: swap
space-grotesk.20aec3.woff2 woff2 swap
Size 22 KB
Load time 33 ms
Start 746 ms
Risk FOUT — text flashes from fallback to web font
sofia-sans.18ddf5.woff2 woff2 swap
Size 40 KB
Load time 32 ms
Start 748 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 77 KB
Load time 69 ms
Start 749 ms
Risk FOUT — text flashes from fallback to web font
fa-brands-400.woff2 woff2 swap
Size 76 KB
Load time 43 ms
Start 895 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)
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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
3
prefetch
—

5 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
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
66 requests over 2624ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 6.1 s LCP 15.9 shttps://io9.com// https://io9.com/ — 301 — 446 B — 155 ms — h2https://gizmodo.com/io9gizmodo.com/io9 https://gizmodo.com/io9 — 200 — 58.4 KiB — 521 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css — 200 — 10.9 KiB — 96 ms — h3https://cache.consentframework.com/js/pa/41707/c/V2Sw7/stubcache.consentframework.com/js/pa/41... https://cache.consentframework.com/js/pa/41707/c/V2Sw7/stub — 200 — 2.5 KiB — 191 ms — h2https://cdn.sirdata.eu/youtube-iframe.jscdn.sirdata.eu/youtube-iframe.js https://cdn.sirdata.eu/youtube-iframe.js — 200 — 3.7 KiB — 183 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 152 ms — h3https://scripts.opti-digital.com/modules/?site=gizmodoscripts.opti-digital.com/modules/?s... https://scripts.opti-digital.com/modules/?site=gizmodo — 200 — 9.2 KiB — 89 ms — h3https://gizmodo.com/app/plugins/pdfjs-viewer-shortcode/blocks/dist/style.css?ver=2.2.1gizmodo.com/app/plugins/pdfjs-viewe... https://gizmodo.com/app/plugins/pdfjs-viewer-shortcode/blocks/dist/style.css?ver=2.2.1 — 200 — 680 B — 34 ms — h2https://gizmodo.com/app/plugins/keleops-shopbot/css/all.min.css?ver=1.6.36gizmodo.com/app/plugins/keleops-sho... https://gizmodo.com/app/plugins/keleops-shopbot/css/all.min.css?ver=1.6.36 — 200 — 8.4 KiB — 31 ms — h2https://gizmodo.com/app/plugins/keleops-toc/assets/css/screen.min.css?ver=2.0.23gizmodo.com/app/plugins/keleops-toc... https://gizmodo.com/app/plugins/keleops-toc/assets/css/screen.min.css?ver=2.0.23 — 200 — 1.3 KiB — 32 ms — h2https://gizmodo.com/app/plugins/simple-tags/assets/frontend/css/frontend.css?ver=3.26.0gizmodo.com/app/plugins/simple-tags... https://gizmodo.com/app/plugins/simple-tags/assets/frontend/css/frontend.css?ver=3.26.0 — 200 — 872 B — 28 ms — h2https://gizmodo.com/app/themes/gizmodo/public/app.2cf086.cssgizmodo.com/app/themes/gizmodo/publ... https://gizmodo.com/app/themes/gizmodo/public/app.2cf086.css — 200 — 29.4 KiB — 42 ms — h2https://gizmodo.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1gizmodo.com/wp/wp-includes/js/jquer... https://gizmodo.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 31.1 KiB — 50 ms — h2https://gizmodo.com/wp/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1gizmodo.com/wp/wp-includes/js/jquer... https://gizmodo.com/wp/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 — 200 — 5.4 KiB — 34 ms — h2https://gizmodo.com/app/plugins/simple-tags/assets/frontend/js/frontend.js?ver=3.26.0gizmodo.com/app/plugins/simple-tags... https://gizmodo.com/app/plugins/simple-tags/assets/frontend/js/frontend.js?ver=3.26.0 — 200 — 693 B — 33 ms — h2https://gizmodo.com/app/uploads/2026/04/clayface-movie-dc-768x512.jpggizmodo.com/app/uploads/2026/04/cla... https://gizmodo.com/app/uploads/2026/04/clayface-movie-dc-768x512.jpg — 200 — 28.7 KiB — 58 ms — h2https://gizmodo.com/site.webmanifestgizmodo.com/site.webmanifest https://gizmodo.com/site.webmanifest — 200 — 738 B — 140 ms — h3https://gizmodo.com/app/uploads/2026/04/invincible-prime-video-2-io9-2025-review-1-768x512.jpggizmodo.com/app/uploads/2026/04/inv... https://gizmodo.com/app/uploads/2026/04/invincible-prime-video-2-io9-2025-review-1-768x512.jpg — 200 — 44.1 KiB — 73 ms — h3https://gizmodo.com/app/uploads/2026/04/TheMummytopart-768x512.jpggizmodo.com/app/uploads/2026/04/The... https://gizmodo.com/app/uploads/2026/04/TheMummytopart-768x512.jpg — 200 — 27.1 KiB — 31 ms — h3https://gizmodo.com/app/uploads/2026/04/andor-season-2-cassian-tie-cockpit-768x512.jpggizmodo.com/app/uploads/2026/04/and... https://gizmodo.com/app/uploads/2026/04/andor-season-2-cassian-tie-cockpit-768x512.jpg — 200 — 33.0 KiB — 32 ms — h3https://gizmodo.com/app/uploads/2026/04/Daredevil-Born-again-Jessica-jones-warehouse-768x512.jpggizmodo.com/app/uploads/2026/04/Dar... https://gizmodo.com/app/uploads/2026/04/Daredevil-Born-again-Jessica-jones-warehouse-768x512.jpg — 200 — 50.4 KiB — 37 ms — h3https://sdk.mrf.io/statics/marfeel-sdk.js?id=6017sdk.mrf.io/statics/marfeel-sdk.js?i... https://sdk.mrf.io/statics/marfeel-sdk.js?id=6017 — 200 — 58.5 KiB — 126 ms — h3https://cache.consentframework.com/js/pa/41707/c/V2Sw7/cmpcache.consentframework.com/js/pa/41... https://cache.consentframework.com/js/pa/41707/c/V2Sw7/cmp — 200 — 333.2 KiB — 176 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-W5PBFP3Xwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-W5PBFP3X — 200 — 120.2 KiB — 199 ms — h2https://cd.connatix.com/connatix.player.js?cid=872d12ce-453b-4870-845f-955919887e1b&pid=92b7b46b-43ed-4e0e-b21b-2c999302d9d7cd.connatix.com/connatix.player.js?... https://cd.connatix.com/connatix.player.js?cid=872d12ce-453b-4870-845f-955919887e1b&pid=92b7b46b-43ed-4e0e-b21b-2c999302d9d7 — 200 — 1.3 KiB — 113 ms — h3https://gizmodo.com/app/themes/gizmodo/public/images/icons.svg?v2gizmodo.com/app/themes/gizmodo/publ... https://gizmodo.com/app/themes/gizmodo/public/images/icons.svg?v2 — 200 — 7.5 KiB — 26 ms — h3https://scripts.opti-digital.com/lib/?site=gizmodo&lib=launcher&v=5.3.9scripts.opti-digital.com/lib/?site=... https://scripts.opti-digital.com/lib/?site=gizmodo&lib=launcher&v=5.3.9 — 200 — 101.4 KiB — 91 ms — h3https://optiyield-data.opti-digital.com/pfc/web/config?pubid=23178111854&device=30001&domain=gizmodo.com&nr=1&country=ESoptiyield-data.opti-digital.com/pfc... https://optiyield-data.opti-digital.com/pfc/web/config?pubid=23178111854&device=30001&domain=gizmodo.com&nr=1&country=ES — 200 — 1.2 KiB — 86 ms — h3https://gizmodo.com/app/themes/gizmodo/public/fonts/space-grotesk.20aec3.woff2gizmodo.com/app/themes/gizmodo/publ... https://gizmodo.com/app/themes/gizmodo/public/fonts/space-grotesk.20aec3.woff2 — 200 — 22.3 KiB — 33 ms — h3https://gizmodo.com/app/themes/gizmodo/public/fonts/sofia-sans.18ddf5.woff2gizmodo.com/app/themes/gizmodo/publ... https://gizmodo.com/app/themes/gizmodo/public/fonts/sofia-sans.18ddf5.woff2 — 200 — 40.1 KiB — 32 ms — h3
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 6.1 s LCP 15.9 shttps://io9.com// https://io9.com/ — 301 — 446 B — 155 ms — h2https://gizmodo.com/io9gizmodo.com/io9 https://gizmodo.com/io9 — 200 — 58.4 KiB — 521 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css — 200 — 10.9 KiB — 96 ms — h3https://cache.consentframework.com/js/pa/41707/c/V2Sw7/stubcache.consentframework.com/js/pa/41... https://cache.consentframework.com/js/pa/41707/c/V2Sw7/stub — 200 — 2.5 KiB — 191 ms — h2https://cdn.sirdata.eu/youtube-iframe.jscdn.sirdata.eu/youtube-iframe.js https://cdn.sirdata.eu/youtube-iframe.js — 200 — 3.7 KiB — 183 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 152 ms — h3https://scripts.opti-digital.com/modules/?site=gizmodoscripts.opti-digital.com/modules/?s... https://scripts.opti-digital.com/modules/?site=gizmodo — 200 — 9.2 KiB — 89 ms — h3https://gizmodo.com/app/plugins/pdfjs-viewer-shortcode/blocks/dist/style.css?ver=2.2.1gizmodo.com/app/plugins/pdfjs-viewe... https://gizmodo.com/app/plugins/pdfjs-viewer-shortcode/blocks/dist/style.css?ver=2.2.1 — 200 — 680 B — 34 ms — h2https://gizmodo.com/app/plugins/keleops-shopbot/css/all.min.css?ver=1.6.36gizmodo.com/app/plugins/keleops-sho... https://gizmodo.com/app/plugins/keleops-shopbot/css/all.min.css?ver=1.6.36 — 200 — 8.4 KiB — 31 ms — h2https://gizmodo.com/app/plugins/keleops-toc/assets/css/screen.min.css?ver=2.0.23gizmodo.com/app/plugins/keleops-toc... https://gizmodo.com/app/plugins/keleops-toc/assets/css/screen.min.css?ver=2.0.23 — 200 — 1.3 KiB — 32 ms — h2https://gizmodo.com/app/plugins/simple-tags/assets/frontend/css/frontend.css?ver=3.26.0gizmodo.com/app/plugins/simple-tags... 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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 3266ms · 1227KB · $43/mo
cache.consentframework.com
Other
Costly
Execution 705ms
Transfer 333 KB
Unused 11%
Monthly Cost $9/mo
gizmodo.com
Other
Costly
Execution 642ms
Transfer 58 KB
Monthly Cost $9/mo
Unattributable
Other
Costly
Execution 521ms
Transfer 0 KB
Monthly Cost $7/mo
Google Tag Manager
Tag Manager
Costly
Execution 289ms
Transfer 157 KB
Unused 42%
Monthly Cost $4/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 273ms
Transfer 187 KB
Unused 68%
Monthly Cost $4/mo
scripts.opti-digital.com
Other
Optional
Execution 188ms
Transfer 101 KB
Unused 76%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 153ms
Transfer 120 KB
Unused 50%
Monthly Cost $2/mo
cds.connatix.com
Other
Optional
Execution 137ms
Transfer 139 KB
Unused 68%
Monthly Cost $2/mo
cache.consentframework.com
Other
Optional
Execution 103ms
Transfer 3 KB
Monthly Cost $1/mo
gizmodo.com
Other
Optional
Execution 81ms
Transfer 4 KB
Monthly Cost $1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 70ms
Transfer 34 KB
Monthly Cost $1/mo
sdk.mrf.io
Other
Optional
Execution 53ms
Transfer 59 KB
Unused 51%
Monthly Cost $1/mo
gizmodo.com
Other
Optional
Execution 50ms
Transfer 31 KB
Unused 70%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • cache.consentframework.com adds 705ms and costs ~$9/month
  • gizmodo.com adds 642ms and costs ~$9/month
  • Unattributable adds 521ms and costs ~$7/month
  • Google Tag Manager adds 289ms and costs ~$4/month
  • securepubads.g.doubleclick.net adds 273ms and costs ~$4/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

cache.consentframework.com takes 705ms 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

gizmodo.com takes 642ms 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

Unattributable takes 521ms 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

Google Tag Manager takes 289ms 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

securepubads.g.doubleclick.net takes 273ms 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

68% of securepubads.g.doubleclick.net'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

76% of scripts.opti-digital.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

68% of cds.connatix.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

51% of sdk.mrf.io'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

70% of gizmodo.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

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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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