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https://hearstnetworks.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
4
REVIEW
3
PASS
8
INFO
2

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

Mobile Desktop
68
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

2.49 s

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

3.03 s

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

0 ms

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

0.638

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

2.68 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.

3.03 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
8 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
7.8 MB transferred, 40 requests
FIX
7.8 MB transferred, 40 requests
Critical::
Page weighs 8.6 MB (7.8 MB transferred)
Info::
40 HTTP requests
Info::
Estimated 1.6 g CO2 per page load
7.8 MB / 2.4 MB budget
7.8 MB transferred
40 requests
1.6 g CO2 per page load
Other 7.1 MiB 91%
Images 488.5 KiB 6%
JavaScript 64.5 KiB 1%
Fonts 47.3 KiB 1%
HTML 39.3 KiB 0%
CSS 38.6 KiB 0%
Other 32.5 KiB 0%
Other 298 B 0%
0 2.4 MB 4.9 MB
Over budget
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 (7.8 MiB of 7.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
40 resources · 7.8 MB · 44 KB savings available
FIX
40 resources · 7.8 MB · 44 KB savings available
Warning::
Page weight 6.8 MB over 1MB target
Got: 7.8 MB Expected: ≤ 1 MB
Warning::
39 third-party resources (100% of weight)
Info::
2 resources over 200KB
40 resources · 7.8 MiB · 39 third-party 6.8 MiB over 1MB target
Media 91% · 7.1 MiB
Image 7% · 520.6 KiB
JavaScript 1% · 64.5 KiB
Font 1% · 47.3 KiB
Document 0% · 39.7 KiB
CSS 0% · 38.6 KiB
Other 0% · 298 B

~44.5 KiB of savings available

Remove unused JavaScript: 44.5 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
Image Optimization
Action
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Warning::
https://hearstnetworkscorp.s3.eu-west-2.amazonaws.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://hearstnetworkscorp.s3.eu-west-2.amazonaws.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://hearstnetworkscorp.s3.eu-west-2.amazonaws.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://hearstnetworkscorp.s3.eu-west-2.amazonaws.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
18 images 488 KB
0 oversized -0 KB
18 legacy format
4 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

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

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

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

B
JS Execution Cost
790ms total JS execution
REVIEW
790ms total JS execution
Warning::
Unattributable: 494ms CPU time
Warning::
https://www.hearstnetworks.com/: 297ms CPU time
Warning::
Third-party scripts: 790ms (100% of total)

Main Thread Breakdown

Other 66% Style & Layout 15% Script Evaluation 8% Rendering 6% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
Unattributable494ms10ms0ms3rd
https://www.hearstnetworks.com/297ms4ms1ms3rd
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
1 fonts (47 KB)
PASS
1 fonts (47 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

47 KB total

Render-blocking

0

of 1

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 FCP 2.5 s LCP 3.0 shttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 50 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 50 ms
Start 162 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+
JS Bundles
6 scripts, 44 KB unused
PASS
6 scripts, 44 KB unused
Warning::
https://www.hearstnetworks.com/core/assets/vendor/...: 24 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hearstnetworks.com/sites/default/files...: 20 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 44 KB
44 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.hearstnetworks.com/core/assets/vendor/jquery/jquery.min.js?v=4.0.032 KB24 KB (77%)✓3rd
https://www.hearstnetworks.com/sites/default/files/js/js_lQkRjVooFoTiHv4ysbiKiCJs_1Ok7tQlhIIZ8jcPqeY.js?scope=footer&delta=1&language=en&theme=hearstnetworksemea&include=eJzLSE0sKi7JSy0pzy_KLk7NTU3UT8_JT0rM0S0uqczJzEvXyUmsqtQHEQCB8hFP25 KB20 KB (82%)✓3rd
https://cdn.cookielaw.org/consent/0191e4dc-7f63-72c7-9f06-554a1f4a4234/OtAutoBlock.js0 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js0 KB—✓3rd
https://api.pirsch.io/pirsch-extended.js4 KB—✓3rd
https://www.hearstnetworks.com/libraries/lazysizes/lazysizes.min.js4 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

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+
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
40 requests over 577ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.5 s LCP 3.0 shttps://hearstnetworks.com// https://hearstnetworks.com/ — 301 — 352 B — 11 ms — h2https://www.hearstnetworks.com/www.hearstnetworks.com/ https://www.hearstnetworks.com/ — 200 — 39.3 KiB — 9 ms — h2https://cdn.cookielaw.org/consent/0191e4dc-7f63-72c7-9f06-554a1f4a4234/OtAutoBlock.jscdn.cookielaw.org/consent/0191e4dc-... https://cdn.cookielaw.org/consent/0191e4dc-7f63-72c7-9f06-554a1f4a4234/OtAutoBlock.js — -1 — 0 B — 93 ms — https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — -1 — 0 B — 90 ms — https://www.hearstnetworks.com/sites/default/files/css/css_pUkrg7yi1QT2HvBbFSzJc0tsfUKr8SCN7QOhUrNJOQA.css?delta=0&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acocwww.hearstnetworks.com/sites/defaul... https://www.hearstnetworks.com/sites/default/files/css/css_pUkrg7yi1QT2HvBbFSzJc0tsfUKr8SCN7QOhUrNJOQA.css?delta=0&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acoc — 200 — 744 B — 10 ms — h2https://www.hearstnetworks.com/sites/default/files/css/css_SO8aW-XJRPsIZSmqkaWdocKwukAk59Hg3s8zO0uePyU.css?delta=1&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acocwww.hearstnetworks.com/sites/defaul... https://www.hearstnetworks.com/sites/default/files/css/css_SO8aW-XJRPsIZSmqkaWdocKwukAk59Hg3s8zO0uePyU.css?delta=1&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acoc — 200 — 1.4 KiB — 9 ms — h2https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap — 200 — 1.2 KiB — 94 ms — h2https://www.hearstnetworks.com/sites/default/files/css/css_ixbR3wDDa1tLqYVmiV5QaUthLFLhpVCJD4L1bS_kzeA.css?delta=3&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acocwww.hearstnetworks.com/sites/defaul... https://www.hearstnetworks.com/sites/default/files/css/css_ixbR3wDDa1tLqYVmiV5QaUthLFLhpVCJD4L1bS_kzeA.css?delta=3&language=en&theme=hearstnetworksemea&include=eJyNy0EOwyAMBMAPEXhSZIIFqNhGtmmU37fqpVJOuexhdzaLuLnC3DOodkmEZlDR9rN1x5DvO0vBcIhiOoSmMLJbvKttI-T1kO2HjEVsTzlB59AQ1JzRT9GXISGkOiTD2Myv0bmGCQr1e26Wiq4JI_6buHiuPLo1LMEuc6SUwTC8O56WfhlJyhr4AR9Acoc — 200 — 35.3 KiB — 10 ms — h2https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/logo.svgwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/logo.svg — 200 — 2.7 KiB — 30 ms — h2https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/menu-light.svgwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/menu-light.svg — 200 — 623 B — 28 ms — h2https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/down-arrow.svgwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/down-arrow.svg — 200 — 311 B — 25 ms — h2https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2023-03/history-channel.png?itok=32MAGar7hearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2023-03/history-channel.png?itok=32MAGar7 — 200 — 14.3 KiB — 172 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2022-07/crimeandinvestigation.png?itok=-VEI6SdAhearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2022-07/crimeandinvestigation.png?itok=-VEI6SdA — 200 — 18.2 KiB — 152 ms — http/1.1https://www.hearstnetworks.com/core/assets/vendor/jquery/jquery.min.js?v=4.0.0www.hearstnetworks.com/core/assets/... https://www.hearstnetworks.com/core/assets/vendor/jquery/jquery.min.js?v=4.0.0 — 200 — 31.8 KiB — 35 ms — h2https://www.hearstnetworks.com/sites/default/files/js/js_lQkRjVooFoTiHv4ysbiKiCJs_1Ok7tQlhIIZ8jcPqeY.js?scope=footer&delta=1&language=en&theme=hearstnetworksemea&include=eJzLSE0sKi7JSy0pzy_KLk7NTU3UT8_JT0rM0S0uqczJzEvXyUmsqtQHEQCB8hFPwww.hearstnetworks.com/sites/defaul... https://www.hearstnetworks.com/sites/default/files/js/js_lQkRjVooFoTiHv4ysbiKiCJs_1Ok7tQlhIIZ8jcPqeY.js?scope=footer&delta=1&language=en&theme=hearstnetworksemea&include=eJzLSE0sKi7JSy0pzy_KLk7NTU3UT8_JT0rM0S0uqczJzEvXyUmsqtQHEQCB8hFP — 200 — 25.1 KiB — 6 ms — h2https://api.pirsch.io/pirsch-extended.jsapi.pirsch.io/pirsch-extended.js https://api.pirsch.io/pirsch-extended.js — 200 — 3.7 KiB — 131 ms — h2https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2022-07/blaze.png?itok=9Tq23UYEhearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2022-07/blaze.png?itok=9Tq23UYE — 200 — 10.5 KiB — 113 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2024-07/LOGO_COSMO_FondoBlanco%20new.png?VersionId=9KbPrNezQYqTwcS795R3dV11DbPWqA6p&itok=-1aGtkxHhearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/brand_logo/public/2024-07/LOGO_COSMO_FondoBlanco%20new.png?VersionId=9KbPrNezQYqTwcS795R3dV11DbPWqA6p&itok=-1aGtkxH — 200 — 12.6 KiB — 121 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/battenberg_image/public/2024-04/PHOTOGRUL%20-%20A%2BE%20Networks%202048px-52.jpg?VersionId=PMM4tQS0RGx3nIWuw1pvQZ_TfGxS5YE7&itok=bk1TECjnhearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/battenberg_image/public/2024-04/PHOTOGRUL%20-%20A%2BE%20Networks%202048px-52.jpg?VersionId=PMM4tQS0RGx3nIWuw1pvQZ_TfGxS5YE7&itok=bk1TECjn — 200 — 89.4 KiB — 173 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/battenberg_image/public/2024-02/History%27s_Greatest_Mysteries_2.jpg?VersionId=eS58FbngftLdvVnXqcQ3196GlO.VoMHs&itok=vPVdyaOphearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/battenberg_image/public/2024-02/History%27s_Greatest_Mysteries_2.jpg?VersionId=eS58FbngftLdvVnXqcQ3196GlO.VoMHs&itok=vPVdyaOp — 200 — 54.9 KiB — 185 ms — http/1.1https://www.hearstnetworks.com/themes/custom/aenetworksemea/images/icons/linkedin.svgwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/aenetworksemea/images/icons/linkedin.svg — 200 — 507 B — 26 ms — h2https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/right-arrow.svgwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/icons/right-arrow.svg — 200 — 311 B — 27 ms — h2https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/s3fs-public/styles/header_image_mobile/public/2024-05/vikings-mobile-header.jpg?VersionId=wStc._wDnPzQnwpR4BrLzvMVWnNAvUJ3&amp;itok=aYZfVlV-hearstnetworkscorp.s3.eu-west-2.ama... 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https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/header-videos/desktop/aetn-header-video-desktop.mp4 — 206 — 25.5 KiB — 51 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/header-videos/desktop/aetn-header-video-desktop.mp4hearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/header-videos/desktop/aetn-header-video-desktop.mp4 — 206 — 3.6 MiB — 1 ms — http/1.1https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/header-videos/mobile/aetn-header-video-mobile.mp4hearstnetworkscorp.s3.eu-west-2.ama... https://hearstnetworkscorp.s3.eu-west-2.amazonaws.com/header-videos/mobile/aetn-header-video-mobile.mp4 — 206 — 3.4 MiB — 0 ms — http/1.1https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/favicons/favicon-500x500.pngwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/favicons/favicon-500x500.png — 200 — 29.4 KiB — 24 ms — h2https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/favicons/favicon-32x32.pngwww.hearstnetworks.com/themes/custo... https://www.hearstnetworks.com/themes/custom/hearstnetworksemea/images/favicons/favicon-32x32.png — 200 — 2.8 KiB — 26 ms — h2
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 790ms · 39KB · €9/mo
Unattributable
Other
Costly
Execution 494ms
Transfer 0 KB
Monthly Cost €5/mo
www.hearstnetworks.com
Other
Costly
Execution 297ms
Transfer 39 KB
Monthly Cost €3/mo

These scripts may cost more than they're worth

  • Unattributable adds 494ms and costs ~€5/month
  • www.hearstnetworks.com adds 297ms and costs ~€3/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

Unattributable takes 494ms 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

www.hearstnetworks.com takes 297ms 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

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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