Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

Accessibility

Best Practices

100

SEO

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

7.89 s

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

27.28 s

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

8.03 s

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

0.000

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

14.05 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.

48.97 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

7 PASS 2 REVIEW 6 FIX

Page Weight Budget

Action

7.3 MB transferred, 531 requests

FIX

7.3 MB transferred, 531 requests

Page weighs 19.9 MB (7.3 MB transferred)

JavaScript is 3.3 MB — consider code splitting or lazy loading

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

Got: 3.3 MB

Fonts are 494 KB — consider subsetting or using system fonts

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

Got: 494 KB

531 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 1.5 g CO2 per page load

7.3 MB transferred

531 requests

1.5 g CO2 per page load

JavaScript 3.3 MiB 45%

Other 2.4 MiB 32%

Fonts 494.3 KiB 7%

HTML 476.3 KiB 6%

Images 444.1 KiB 6%

Other 225.4 KiB 3%

Other 77.2 KiB 1%

CSS 28.0 KiB 0%

Other 384 B 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

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

Third-Party Impact

Action

100% third-party, 0 ms blocking

FIX

100% third-party, 0 ms blocking

Third-party code accounts for 100% of page weight (7.3 MiB of 7.3 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

JS Execution Cost

Action

30419ms total JS execution

FIX

30419ms total JS execution

https://www.huffpost.com/static-assets/cambria/app...: 5443ms CPU time

https://cds.thecontentserver.com/p/320936758/playe...: 4424ms CPU time

Unattributable: 3813ms CPU time

https://micro.rubiconproject.com/prebid/dynamic/13...: 1828ms CPU time

https://www.huffpost.com/: 1442ms CPU time

Third-party scripts: 30419ms (100% of total)

Main Thread Breakdown

Script Evaluation 61% Other 22% Style & Layout 7% Script Parsing & Compilation 5%

Script	Total	Scripting	Parse/Compile	Party
https://www.huffpost.com/static-assets/cambria/app/news.6afa175869590600d0c7.js	5443ms	1515ms	51ms	3rd
https://cds.thecontentserver.com/p/320936758/player.js?cid=1bf35e8b-3d55-48a6-aef8-0ebfdd277df7	4424ms	3849ms	81ms	3rd
Unattributable	3813ms	1280ms	0ms	3rd
https://micro.rubiconproject.com/prebid/dynamic/13062.js	1828ms	1710ms	64ms	3rd
https://www.huffpost.com/	1442ms	380ms	28ms	3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964	1269ms	944ms	88ms	3rd
https://client.aps.amazon-adsystem.com/publisher.js	833ms	746ms	49ms	3rd
https://modulous.huffpost.com/2026/04/08/1775660194-bundle-hp-gam-e133aa5.min.js	795ms	752ms	19ms	3rd
https://imasdk.googleapis.com/js/sdkloader/ima3.js	792ms	692ms	68ms	3rd
https://cds.connatix.com/p/320936758/cSyncRemote.js	706ms	601ms	35ms	3rd

Showing top 10 of 51 scripts

JS Bundles

Action

80 scripts, 1.6 MB unused

FIX

80 scripts, 1.6 MB unused

https://www.huffpost.com/static-assets/cambria/app...: 418 KB unused (88%)

Consider code splitting or tree shaking to reduce unused code.

https://www.huffpost.com/static-assets/cambria/app...: 115 KB unused (90%)

Consider code splitting or tree shaking to reduce unused code.

https://cds.connatix.com/p/plugins/prebid10.22-2.j...: 104 KB unused (63%)

Consider code splitting or tree shaking to reduce unused code.

https://securepubads.g.doubleclick.net/pagead/mana...: 101 KB unused (54%)

Consider code splitting or tree shaking to reduce unused code.

https://imasdk.googleapis.com/js/sdkloader/ima3.js: 97 KB unused (66%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.6 MB

1650 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.huffpost.com/static-assets/cambria/app/DailyChecklist.32dd6ff0e8bc37014561.js	478 KB	418 KB (88%)	✓	3rd
https://www.huffpost.com/static-assets/cambria/app/Card.b7a9091df135ce2d3d8a.js	133 KB	115 KB (90%)	✓	3rd
https://cds.connatix.com/p/plugins/prebid10.22-2.js	164 KB	104 KB (63%)	✓	3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964	188 KB	101 KB (54%)	✓	3rd
https://imasdk.googleapis.com/js/sdkloader/ima3.js	146 KB	97 KB (66%)	✓	3rd
https://html-load.cc/script/d3d3Lmh1ZmZwb3N0LmNvbQ.js	130 KB	84 KB (65%)	✓	3rd
https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	127 KB	71 KB (56%)	✓	3rd
https://cdn.confiant-integrations.net/video/202603241056/wrap.js	125 KB	69 KB (56%)	✓	3rd
https://cds.connatix.com/p/320936758/player.ads.js	96 KB	62 KB (65%)	✓	3rd
https://widgets.outbrain.com/outbrain.js	110 KB	54 KB (49%)	✓	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

Page Weight Inventory

Action

531 resources · 7.3 MB · 1.6 MB savings available

FIX

531 resources · 7.3 MB · 1.6 MB savings available

Page weight 6.3 MB over 1MB target

Got: 7.3 MB Expected: ≤ 1 MB

~1.6 MB of savings available

530 third-party resources (100% of weight)

4 resources over 200KB

531 resources · 7.3 MiB · 530 third-party 6.3 MiB over 1MB target

JavaScript 46% · 3.4 MiB

Media 31% · 2.3 MiB

Font 7% · 494.3 KiB

Document 7% · 491.4 KiB

Image 6% · 449.8 KiB

Other 4% · 267.4 KiB

CSS 0% · 32.7 KiB

~1.6 MiB of savings available

Remove unused JavaScript: 1.6 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

531 resources			7.3 MiB

HTTP Caching

Action

No cache headers

FIX

No cache headers

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.

Image Optimization

99 images, 0 KB saveable

REVIEW

99 images, 0 KB saveable

https://img.huffingtonpost.com/asset/69e7c11e14000... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

99 images 441 KB

0 oversized -0 KB

76 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

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

All text resources are properly compressed.

A+

Font Loading

14 fonts (494 KB)

PASS

14 fonts (494 KB)

14 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

494 KB total

Render-blocking

of 14

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

proxima-nova-regular.ha... woff swap

Size 42 KB

Load time 39 ms

Start 168 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

proxima-nova-bold.hash-... woff swap

Size 42 KB

Load time 77 ms

Start 169 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

proxima-nova-semibold.h... woff swap

Size 40 KB

Load time 53 ms

Start 169 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

proxima-nova-condensed-... woff2 swap

Size 40 KB

Load time 68 ms

Start 169 ms

Risk FOUT — text flashes from fallback to web font

proxima-nova-condensed-... woff2 swap

Size 40 KB

Load time 83 ms

Start 170 ms

Risk FOUT — text flashes from fallback to web font

proxima-nova-condensed-... woff2 swap

Size 45 KB

Load time 70 ms

Start 170 ms

Risk FOUT — text flashes from fallback to web font

proxima-nova-condensed-... woff2 swap

Size 39 KB

Load time 99 ms

Start 171 ms

Risk FOUT — text flashes from fallback to web font

proxima-nova-condensed-... woff2 swap

Size 43 KB

Load time 84 ms

Start 171 ms

Risk FOUT — text flashes from fallback to web font

Sporting_Grotesque-Bold... woff swap

Size 32 KB

Load time 8 ms

Start 635 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

pxiByp8kv8JHgFVrLEj6Z1x... woff2 swap

Size 8 KB

Load time 20 ms

Start 635 ms

Risk FOUT — text flashes from fallback to web font

pxiByp8kv8JHgFVrLGT9Z1x... woff2 swap

Size 8 KB

Load time 19 ms

Start 635 ms

Risk FOUT — text flashes from fallback to web font

JTUSjIg1_i6t8kCHKm459Wl... woff2 swap

Size 35 KB

Load time 13 ms

Start 635 ms

Risk FOUT — text flashes from fallback to web font

proxima-nova-condensed-... woff2 swap

Size 40 KB

Load time 6 ms

Start 2.2 s

Risk FOUT — text flashes from fallback to web font

proxima-nova-regular.ha... woff swap

Size 42 KB

Load time 12 ms

Start 2.2 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

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 ~59 KB and ~118 ms

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

31 hints, 0 missing preconnects

PASS

31 hints, 0 missing preconnects

Page uses 31 resource hint(s)

Current Resource Hints

preconnect

preload

dns-prefetch

prefetch

—

31 resource hints configured

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

Network Waterfall

531 requests over 12526ms

INFO

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 30419ms · 3273KB · €330/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
www.huffpost.com www.huffpost.com	Other	5443ms	111 KB	33%	€59/mo	Costly
cds.thecontentserver.com cds.thecontentserver.com	Other	4424ms	139 KB	31%	€48/mo	Costly
Unattributable Unattributable	Other	3813ms	0 KB	—	€41/mo	Costly
micro.rubiconproject.com micro.rubiconproject.com	Other	1828ms	163 KB	25%	€20/mo	Costly
www.huffpost.com www.huffpost.com	Other	1442ms	145 KB	—	€16/mo	Costly
securepubads.g.doubleclick.net securepubads.g.doubleclick.net	Other	1269ms	188 KB	54%	€14/mo	Costly
client.aps.amazon-adsystem.com client.aps.amazon-adsystem.com	Other	833ms	82 KB	38%	€9/mo	Costly
modulous.huffpost.com modulous.huffpost.com	Other	795ms	37 KB	—	€9/mo	Costly
imasdk.googleapis.com imasdk.googleapis.com	Other	792ms	146 KB	66%	€9/mo	Costly
cds.connatix.com cds.connatix.com	Other	706ms	62 KB	51%	€8/mo	Costly
cdn.confiant-integrations.net cdn.confiant-integrations.net	Other	671ms	125 KB	56%	€7/mo	Costly
tagan.adlightning.com tagan.adlightning.com	Other	620ms	11 KB	—	€7/mo	Costly
cds.thecontentserver.com cds.thecontentserver.com	Other	566ms	37 KB	—	€6/mo	Costly
cds.connatix.com cds.connatix.com	Other	502ms	164 KB	63%	€5/mo	Costly
mv.outbrain.com mv.outbrain.com	Other	480ms	11 KB	—	€5/mo	Costly
cds.thecontentserver.com cds.thecontentserver.com	Other	426ms	75 KB	52%	€5/mo	Costly
cdn.id5-sync.com cdn.id5-sync.com	Other	375ms	0 KB	—	€4/mo	Costly
widgets.outbrain.com widgets.outbrain.com	Other	370ms	110 KB	49%	€4/mo	Costly
pagead2.googlesyndication.com pagead2.googlesyndication.com	Other	347ms	0 KB	—	€4/mo	Costly
html-load.cc html-load.cc	Other	328ms	130 KB	65%	€4/mo	Costly
mv.outbrain.com mv.outbrain.com	Other	314ms	7 KB	—	€3/mo	Costly
OneTrust cdn.cookielaw.org	Consent	301ms	127 KB	56%	€3/mo	Essential
cds.connatix.com cds.connatix.com	Other	293ms	17 KB	—	€3/mo	Costly
tagan.adlightning.com tagan.adlightning.com	Other	277ms	103 KB	—	€3/mo	Costly
mv.outbrain.com mv.outbrain.com	Other	276ms	7 KB	—	€3/mo	Costly
tagan.adlightning.com tagan.adlightning.com	Other	232ms	31 KB	—	€3/mo	Costly
widgets.outbrain.com widgets.outbrain.com	Other	212ms	7 KB	—	€2/mo	Costly
securepubads.g.doubleclick.net securepubads.g.doubleclick.net	Other	205ms	34 KB	70%	€2/mo	Costly
config.aps.amazon-adsystem.com config.aps.amazon-adsystem.com	Other	183ms	2 KB	—	€2/mo	Optional
OneTrust cdn.cookielaw.org	Consent	163ms	6 KB	—	€2/mo	Essential
ats-wrapper.privacymanager.io ats-wrapper.privacymanager.io	Other	159ms	75 KB	52%	€2/mo	Optional
pagead2.googlesyndication.com pagead2.googlesyndication.com	Other	144ms	0 KB	65%	€2/mo	Optional
www.huffpost.com www.huffpost.com	Other	139ms	92 KB	31%	€2/mo	Optional
www.huffpost.com www.huffpost.com	Other	134ms	478 KB	88%	€1/mo	Optional
ep2.adtrafficquality.google ep2.adtrafficquality.google	Other	115ms	8 KB	—	€1/mo	Optional
scripts.atmtd.com scripts.atmtd.com	Other	115ms	26 KB	—	€1/mo	Optional
cds.connatix.com cds.connatix.com	Other	114ms	12 KB	—	€1/mo	Optional
static.criteo.net static.criteo.net	Other	92ms	15 KB	—	€1/mo	Optional
cdn.binsiad.com cdn.binsiad.com	Other	91ms	26 KB	—	€1/mo	Optional
cds.connatix.com cds.connatix.com	Other	87ms	96 KB	65%	€1/mo	Optional
cds.thecontentserver.com cds.thecontentserver.com	Other	83ms	45 KB	52%	€1/mo	Optional
OneTrust cdn.cookielaw.org	Consent	82ms	9 KB	—	€1/mo	Essential
www.huffpost.com www.huffpost.com	Other	80ms	133 KB	90%	€1/mo	Optional
secure.cdn.fastclick.net secure.cdn.fastclick.net	Other	77ms	22 KB	—	€1/mo	Optional
launchpad.privacymanager.io launchpad.privacymanager.io	Other	74ms	45 KB	—	€1/mo	Optional
pub.doubleverify.com pub.doubleverify.com	Other	71ms	18 KB	—	€1/mo	Optional
cdn.confiant-integrations.net cdn.confiant-integrations.net	Other	59ms	55 KB	—	€1/mo	Optional
tags.crwdcntrl.net tags.crwdcntrl.net	Other	58ms	13 KB	—	€1/mo	Optional
launchpad-wrapper.privacymanager.io launchpad-wrapper.privacymanager.io	Other	54ms	2 KB	—	€1/mo	Optional
oa.openxcdn.net oa.openxcdn.net	Other	53ms	8 KB	—	€1/mo	Optional
s0.2mdn.net s0.2mdn.net	Other	52ms	17 KB	—	€1/mo	Optional

www.huffpost.com

Other

Costly

Execution 5443ms

Transfer 111 KB

Unused 33%

Monthly Cost €59/mo

cds.thecontentserver.com

Other

Costly

Execution 4424ms

Transfer 139 KB

Unused 31%

Monthly Cost €48/mo

Unattributable

Other

Costly

Execution 3813ms

Transfer 0 KB

Monthly Cost €41/mo

micro.rubiconproject.com

Other

Costly

Execution 1828ms

Transfer 163 KB

Unused 25%

Monthly Cost €20/mo

www.huffpost.com

Other

Costly

Execution 1442ms

Transfer 145 KB

Monthly Cost €16/mo

securepubads.g.doubleclick.net

Other

Costly

Execution 1269ms

Transfer 188 KB

Unused 54%

Monthly Cost €14/mo

client.aps.amazon-adsystem.com

Other

Costly

Execution 833ms

Transfer 82 KB

Unused 38%

Monthly Cost €9/mo

modulous.huffpost.com

Other

Costly

Execution 795ms

Transfer 37 KB

Monthly Cost €9/mo

imasdk.googleapis.com

Other

Costly

Execution 792ms

Transfer 146 KB

Unused 66%

Monthly Cost €9/mo

cds.connatix.com

Other

Costly

Execution 706ms

Transfer 62 KB

Unused 51%

Monthly Cost €8/mo

cdn.confiant-integrations.net

Other

Costly

Execution 671ms

Transfer 125 KB

Unused 56%

Monthly Cost €7/mo

tagan.adlightning.com

Other

Costly

Execution 620ms

Transfer 11 KB

Monthly Cost €7/mo

cds.thecontentserver.com

Other

Costly

Execution 566ms

Transfer 37 KB

Monthly Cost €6/mo

cds.connatix.com

Other

Costly

Execution 502ms

Transfer 164 KB

Unused 63%

Monthly Cost €5/mo

mv.outbrain.com

Other

Costly

Execution 480ms

Transfer 11 KB

Monthly Cost €5/mo

cds.thecontentserver.com

Other

Costly

Execution 426ms

Transfer 75 KB

Unused 52%

Monthly Cost €5/mo

cdn.id5-sync.com

Other

Costly

Execution 375ms

Transfer 0 KB

Monthly Cost €4/mo

widgets.outbrain.com

Other

Costly

Execution 370ms

Transfer 110 KB

Unused 49%

Monthly Cost €4/mo

pagead2.googlesyndication.com

Other

Costly

Execution 347ms

Transfer 0 KB

Monthly Cost €4/mo

html-load.cc

Other

Costly

Execution 328ms

Transfer 130 KB

Unused 65%

Monthly Cost €4/mo

mv.outbrain.com

Other

Costly

Execution 314ms

Transfer 7 KB

Monthly Cost €3/mo

OneTrust

Consent

Essential

Execution 301ms

Transfer 127 KB

Unused 56%

Monthly Cost €3/mo

cds.connatix.com

Other

Costly

Execution 293ms

Transfer 17 KB

Monthly Cost €3/mo

tagan.adlightning.com

Other

Costly

Execution 277ms

Transfer 103 KB

Monthly Cost €3/mo

mv.outbrain.com

Other

Costly

Execution 276ms

Transfer 7 KB

Monthly Cost €3/mo

tagan.adlightning.com

Other

Costly

Execution 232ms

Transfer 31 KB

Monthly Cost €3/mo

widgets.outbrain.com

Other

Costly

Execution 212ms

Transfer 7 KB

Monthly Cost €2/mo

securepubads.g.doubleclick.net

Other

Costly

Execution 205ms

Transfer 34 KB

Unused 70%

Monthly Cost €2/mo

config.aps.amazon-adsystem.com

Other

Optional

Execution 183ms

Transfer 2 KB

Monthly Cost €2/mo

OneTrust

Consent

Essential

Execution 163ms

Transfer 6 KB

Monthly Cost €2/mo

ats-wrapper.privacymanager.io

Other

Optional

Execution 159ms

Transfer 75 KB

Unused 52%

Monthly Cost €2/mo

pagead2.googlesyndication.com

Other

Optional

Execution 144ms

Transfer 0 KB

Unused 65%

Monthly Cost €2/mo

www.huffpost.com

Other

Optional

Execution 139ms

Transfer 92 KB

Unused 31%

Monthly Cost €2/mo

www.huffpost.com

Other

Optional

Execution 134ms

Transfer 478 KB

Unused 88%

Monthly Cost €1/mo

ep2.adtrafficquality.google

Other

Optional

Execution 115ms

Transfer 8 KB

Monthly Cost €1/mo

scripts.atmtd.com

Other

Optional

Execution 115ms

Transfer 26 KB

Monthly Cost €1/mo

cds.connatix.com

Other

Optional

Execution 114ms

Transfer 12 KB

Monthly Cost €1/mo

static.criteo.net

Other

Optional

Execution 92ms

Transfer 15 KB

Monthly Cost €1/mo

cdn.binsiad.com

Other

Optional

Execution 91ms

Transfer 26 KB

Monthly Cost €1/mo

cds.connatix.com

Other

Optional

Execution 87ms

Transfer 96 KB

Unused 65%

Monthly Cost €1/mo

cds.thecontentserver.com

Other

Optional

Execution 83ms

Transfer 45 KB

Unused 52%

Monthly Cost €1/mo

OneTrust

Consent

Essential

Execution 82ms

Transfer 9 KB

Monthly Cost €1/mo

www.huffpost.com

Other

Optional

Execution 80ms

Transfer 133 KB

Unused 90%

Monthly Cost €1/mo

secure.cdn.fastclick.net

Other

Optional

Execution 77ms

Transfer 22 KB

Monthly Cost €1/mo

launchpad.privacymanager.io

Other

Optional

Execution 74ms

Transfer 45 KB

Monthly Cost €1/mo

pub.doubleverify.com

Other

Optional

Execution 71ms

Transfer 18 KB

Monthly Cost €1/mo

cdn.confiant-integrations.net

Other

Optional

Execution 59ms

Transfer 55 KB

Monthly Cost €1/mo

tags.crwdcntrl.net

Other

Optional

Execution 58ms

Transfer 13 KB

Monthly Cost €1/mo

launchpad-wrapper.privacymanager.io

Other

Optional

Execution 54ms

Transfer 2 KB

Monthly Cost €1/mo

oa.openxcdn.net

Other

Optional

Execution 53ms

Transfer 8 KB

Monthly Cost €1/mo

s0.2mdn.net

Other

Optional

Execution 52ms

Transfer 17 KB

Monthly Cost €1/mo

These scripts may cost more than they're worth

www.huffpost.com adds 5443ms and costs ~€59/month
cds.thecontentserver.com adds 4424ms and costs ~€48/month
Unattributable adds 3813ms and costs ~€41/month
micro.rubiconproject.com adds 1828ms and costs ~€20/month
www.huffpost.com adds 1442ms and costs ~€16/month
securepubads.g.doubleclick.net adds 1269ms and costs ~€14/month
client.aps.amazon-adsystem.com adds 833ms and costs ~€9/month
modulous.huffpost.com adds 795ms and costs ~€9/month
imasdk.googleapis.com adds 792ms and costs ~€9/month
cds.connatix.com adds 706ms and costs ~€8/month
cdn.confiant-integrations.net adds 671ms and costs ~€7/month
tagan.adlightning.com adds 620ms and costs ~€7/month
cds.thecontentserver.com adds 566ms and costs ~€6/month
cds.connatix.com adds 502ms and costs ~€5/month
mv.outbrain.com adds 480ms and costs ~€5/month
cds.thecontentserver.com adds 426ms and costs ~€5/month
cdn.id5-sync.com adds 375ms and costs ~€4/month
widgets.outbrain.com adds 370ms and costs ~€4/month
pagead2.googlesyndication.com adds 347ms and costs ~€4/month
html-load.cc adds 328ms and costs ~€4/month
mv.outbrain.com adds 314ms and costs ~€3/month
cds.connatix.com adds 293ms and costs ~€3/month
tagan.adlightning.com adds 277ms and costs ~€3/month
mv.outbrain.com adds 276ms and costs ~€3/month
tagan.adlightning.com adds 232ms and costs ~€3/month
widgets.outbrain.com adds 212ms and costs ~€2/month
securepubads.g.doubleclick.net adds 205ms and costs ~€2/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.huffpost.com takes 5443ms 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

cds.thecontentserver.com takes 4424ms 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 3813ms 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

micro.rubiconproject.com takes 1828ms 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.huffpost.com takes 1442ms 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 1269ms 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

54% 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

client.aps.amazon-adsystem.com takes 833ms 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

modulous.huffpost.com takes 795ms 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

imasdk.googleapis.com takes 792ms 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

66% of imasdk.googleapis.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

cds.connatix.com takes 706ms 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

51% 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

cdn.confiant-integrations.net takes 671ms 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

56% of cdn.confiant-integrations.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

tagan.adlightning.com takes 620ms 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

cds.thecontentserver.com takes 566ms 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

cds.connatix.com takes 502ms 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

63% 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

mv.outbrain.com takes 480ms 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

cds.thecontentserver.com takes 426ms 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

52% of cds.thecontentserver.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

cdn.id5-sync.com takes 375ms 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

widgets.outbrain.com takes 370ms 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

pagead2.googlesyndication.com takes 347ms 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

html-load.cc takes 328ms 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

65% of html-load.cc'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

mv.outbrain.com takes 314ms 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

56% of OneTrust'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

cds.connatix.com takes 293ms 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

tagan.adlightning.com takes 277ms 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

mv.outbrain.com takes 276ms 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

tagan.adlightning.com takes 232ms 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

widgets.outbrain.com takes 212ms 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 205ms 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 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

52% of ats-wrapper.privacymanager.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

65% of pagead2.googlesyndication.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

88% of www.huffpost.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

65% 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

52% of cds.thecontentserver.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

90% of www.huffpost.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.