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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
1
PASS
7
INFO
2

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

Mobile Desktop
87
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
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.

1.31 s

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

1.70 s

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

32 ms

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

0.004

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

1.74 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.

3.31 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
15
7 PASS 1 REVIEW 5 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 73 requests
FIX
2.3 MB transferred, 73 requests
Info::
Page weighs 5.7 MB (2.3 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::
73 HTTP requests
Info::
Estimated 0.48 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
73 requests
0.48 g CO2 per page load
JavaScript 1.2 MiB 52%
Images 748.5 KiB 32%
Fonts 215.1 KiB 9%
HTML 58.3 KiB 2%
CSS 52.5 KiB 2%
Other 33.6 KiB 1%
Other 2.4 KiB 0%
Other 2.0 KiB 0%
Other 737 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

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 (2.3 MiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
24 scripts, 510 KB unused
FIX
24 scripts, 510 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 125 KB unused (67%)
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...: 80 KB unused (79%)
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: 510 KB
510 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964188 KB125 KB (67%)✓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 KB80 KB (79%)✓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/cmp332 KB33 KB (11%)✓3rd
https://sdk.mrf.io/statics/marfeel-sdk.js?id=601758 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/app/themes/gizmodo/public/app.fc9b4b.js8 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
73 resources · 2.3 MB · 510 KB savings available
FIX
73 resources · 2.3 MB · 510 KB savings available
Warning::
Page weight 1.3 MB over 1MB target
Got: 2.3 MB Expected: ≤ 1 MB
Info::
~510 KB of savings available
Warning::
72 third-party resources (100% of weight)
Info::
1 resources over 200KB
73 resources · 2.3 MiB · 72 third-party 1.3 MiB over 1MB target
JavaScript 52% · 1.2 MiB
Image 32% · 758.6 KiB
Font 9% · 215.1 KiB
Document 3% · 58.8 KiB
CSS 2% · 52.5 KiB
Other 1% · 28.2 KiB

~510.3 KiB of savings available

Remove unused JavaScript: 510.3 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.

B
JS Execution Cost
623ms total JS execution
REVIEW
623ms total JS execution
Info::
https://cache.consentframework.com/js/pa/41707/c/V...: 166ms CPU time
Info::
https://gizmodo.com/io9: 161ms CPU time
Info::
Unattributable: 99ms CPU time
Info::
https://securepubads.g.doubleclick.net/pagead/mana...: 73ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-EYNX...: 66ms CPU time
Warning::
Third-party scripts: 623ms (100% of total)

Main Thread Breakdown

Script Evaluation 51% Other 16% Style & Layout 16% Script Parsing & Compilation 10% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://cache.consentframework.com/js/pa/41707/c/V2Sw7/cmp166ms112ms28ms3rd
https://gizmodo.com/io9161ms11ms3ms3rd
Unattributable99ms10ms0ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=3109796473ms60ms12ms3rd
https://www.googletagmanager.com/gtag/js?id=G-EYNXLD4983&cx=c&gtm=4e64k066ms54ms11ms3rd
https://scripts.opti-digital.com/lib/?site=gizmodo&lib=launcher&v=5.3.958ms27ms0ms3rd
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
25 images, 0 KB saveable
PASS
25 images, 0 KB saveable
Info::
All images are well-optimized
25 images 748 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 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.7 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 — 44 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 — 35 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 — 77.0 KiB — 72 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 — 45 ms — font-display: swap
space-grotesk.20aec3.woff2 woff2 swap
Size 22 KB
Load time 44 ms
Start 590 ms
Risk FOUT — text flashes from fallback to web font
sofia-sans.18ddf5.woff2 woff2 swap
Size 40 KB
Load time 35 ms
Start 590 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 77 KB
Load time 72 ms
Start 591 ms
Risk FOUT — text flashes from fallback to web font
fa-brands-400.woff2 woff2 swap
Size 76 KB
Load time 45 ms
Start 776 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
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
73 requests over 2276ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.3 s LCP 1.7 shttps://io9.com// https://io9.com/ — 301 — 507 B — 138 ms — h3https://gizmodo.com/io9gizmodo.com/io9 https://gizmodo.com/io9 — 200 — 58.3 KiB — 523 ms — h3https://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 — 71 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 — 72 ms — h2https://cdn.sirdata.eu/youtube-iframe.jscdn.sirdata.eu/youtube-iframe.js https://cdn.sirdata.eu/youtube-iframe.js — 200 — 3.7 KiB — 88 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 — 118 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 — 55 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 — 909 B — 25 ms — h3https://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 — 8.6 KiB — 57 ms — h3https://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 — 1.5 KiB — 26 ms — h3https://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 — 1.0 KiB — 29 ms — h3https://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 — 29.5 KiB — 89 ms — h3https://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 — 31.3 KiB — 89 ms — h3https://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 — 5.5 KiB — 55 ms — h3https://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 — 872 B — 31 ms — h3https://gizmodo.com/site.webmanifestgizmodo.com/site.webmanifest https://gizmodo.com/site.webmanifest — 200 — 737 B — 135 ms — h3https://gizmodo.com/app/uploads/2026/04/clayface-movie-dc-1600x1067.jpggizmodo.com/app/uploads/2026/04/cla... https://gizmodo.com/app/uploads/2026/04/clayface-movie-dc-1600x1067.jpg — 200 — 112.6 KiB — 102 ms — h3https://gizmodo.com/app/uploads/2026/04/invincible-prime-video-2-io9-2025-review-1-1600x1067.jpggizmodo.com/app/uploads/2026/04/inv... https://gizmodo.com/app/uploads/2026/04/invincible-prime-video-2-io9-2025-review-1-1600x1067.jpg — 200 — 109.3 KiB — 39 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 — 80 ms — h3https://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 — 48 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 — 112 ms — h3https://optiyield-data.opti-digital.com/pfc/web/config?pubid=23178111854&device=30000&domain=gizmodo.com&nr=1&country=ESoptiyield-data.opti-digital.com/pfc... https://optiyield-data.opti-digital.com/pfc/web/config?pubid=23178111854&device=30000&domain=gizmodo.com&nr=1&country=ES — 200 — 1.3 KiB — 109 ms — h3https://gizmodo.com/app/uploads/2026/04/TheMummytopart-1600x1067.jpggizmodo.com/app/uploads/2026/04/The... https://gizmodo.com/app/uploads/2026/04/TheMummytopart-1600x1067.jpg — 200 — 71.6 KiB — 31 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 — 331.9 KiB — 101 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 — 194 ms — h2https://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 — 27 ms — h3https://gizmodo.com/app/uploads/2025/09/io9.svggizmodo.com/app/uploads/2025/09/io9... https://gizmodo.com/app/uploads/2025/09/io9.svg — 200 — 1.3 KiB — 30 ms — h3https://gizmodo.com/app/uploads/2026/04/andor-season-2-cassian-tie-cockpit-336x224.jpggizmodo.com/app/uploads/2026/04/and... https://gizmodo.com/app/uploads/2026/04/andor-season-2-cassian-tie-cockpit-336x224.jpg — 200 — 12.9 KiB — 43 ms — h3https://gizmodo.com/app/uploads/2026/04/Tony_Stark-2-336x224.jpggizmodo.com/app/uploads/2026/04/Ton... https://gizmodo.com/app/uploads/2026/04/Tony_Stark-2-336x224.jpg — 200 — 7.5 KiB — 42 ms — h3https://gizmodo.com/app/uploads/2026/02/Project-Hail-Mary-planet-336x224.jpggizmodo.com/app/uploads/2026/02/Pro... https://gizmodo.com/app/uploads/2026/02/Project-Hail-Mary-planet-336x224.jpg — 200 — 11.6 KiB — 45 ms — h3
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.3 s LCP 1.7 shttps://io9.com// https://io9.com/ — 301 — 507 B — 138 ms — h3https://gizmodo.com/io9gizmodo.com/io9 https://gizmodo.com/io9 — 200 — 58.3 KiB — 523 ms — h3https://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 — 71 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 — 72 ms — h2https://cdn.sirdata.eu/youtube-iframe.jscdn.sirdata.eu/youtube-iframe.js https://cdn.sirdata.eu/youtube-iframe.js — 200 — 3.7 KiB — 88 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 — 118 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 — 55 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 — 909 B — 25 ms — h3https://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 — 8.6 KiB — 57 ms — h3https://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 — 1.5 KiB — 26 ms — h3https://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 — 1.0 KiB — 29 ms — h3https://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 — 29.5 KiB — 89 ms — h3https://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 — 31.3 KiB — 89 ms — h3https://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 — 5.5 KiB — 55 ms — h3https://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 — 872 B — 31 ms — 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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 623ms · 836KB · $8/mo
cache.consentframework.com
Other
Optional
Execution 166ms
Transfer 332 KB
Unused 11%
Monthly Cost $2/mo
gizmodo.com
Other
Optional
Execution 161ms
Transfer 58 KB
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 99ms
Transfer 0 KB
Monthly Cost $1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 73ms
Transfer 188 KB
Unused 67%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 66ms
Transfer 157 KB
Unused 42%
Monthly Cost $1/mo
scripts.opti-digital.com
Other
Optional
Execution 58ms
Transfer 101 KB
Unused 79%
Monthly Cost $1/mo

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

67% 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

79% 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

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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