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.

11.52 s

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

25.31 s

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

4.40 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.

12.37 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.

35.30 s

Page Load Progression

492 ms

983 ms

1.5 s

2.0 s

2.5 s

3.0 s

3.4 s

3.9 s

Checks

7 PASS 2 REVIEW 6 FIX

Page Weight Budget

Action

6.3 MB transferred, 606 requests

FIX

6.3 MB transferred, 606 requests

Page weighs 18.4 MB (6.3 MB transferred)

JavaScript is 3.8 MB — consider code splitting or lazy loading

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

Got: 3.8 MB

Images are 1.7 MB — compress or use modern formats

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Got: 1.7 MB

CSS is 307 KB — consider purging unused styles

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Got: 307 KB

606 HTTP requests — consider bundling or reducing

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

Estimated 1.3 g CO2 per page load

6.3 MB transferred

606 requests

1.3 g CO2 per page load

JavaScript 3.8 MiB 61%

Images 1.7 MiB 27%

CSS 306.9 KiB 5%

HTML 244.1 KiB 4%

Fonts 140.2 KiB 2%

Other 42.3 KiB 1%

Other 24.5 KiB 0%

Other 16.3 KiB 0%

Other 5.8 KiB 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

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

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 (6.3 MiB of 6.3 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

JS Execution Cost

Action

20958ms total JS execution

FIX

20958ms total JS execution

https://content.r9cdn.net/frontier/assets/CcD8mPq4...: 5386ms CPU time

Unattributable: 4116ms CPU time

https://www.kayak.com/: 4098ms CPU time

https://content.r9cdn.net/frontier/assets/CH9QYAfB...: 1743ms CPU time

(program):2: 656ms CPU time

Third-party scripts: 20958ms (100% of total)

Main Thread Breakdown

Script Evaluation 45% Other 27% Style & Layout 14% Rendering 6% Parse HTML & CSS 4%

Script	Total	Scripting	Parse/Compile	Party
https://content.r9cdn.net/frontier/assets/CcD8mPq4Km.js	5386ms	4124ms	8ms	3rd
Unattributable	4116ms	1212ms	0ms	3rd
https://www.kayak.com/	4098ms	102ms	36ms	3rd
https://content.r9cdn.net/frontier/assets/CH9QYAfBte.js	1743ms	282ms	1ms	3rd
(program):2	656ms	612ms	0ms	3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js	639ms	552ms	63ms	3rd
https://www.googletagmanager.com/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c&gtm=4e64e1	603ms	479ms	50ms	3rd
https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js	454ms	163ms	10ms	3rd
https://www.googletagmanager.com/gtag/destination?id=AW-988306736&l=unifiedDataLayer&cx=c&gtm=4e64e1	340ms	294ms	43ms	3rd
https://www.googletagmanager.com/gtag/destination?id=DC-5142311&l=unifiedDataLayer&cx=c&gtm=4e64e1	339ms	286ms	49ms	3rd

Showing top 10 of 29 scripts

JS Bundles

Action

321 scripts, 1.3 MB unused

FIX

321 scripts, 1.3 MB unused

https://content.r9cdn.net/frontier/assets/nNPJO96_...: 272 KB unused (47%)

Consider code splitting or tree shaking to reduce unused code.

https://content.r9cdn.net/frontier/assets/C56mkV0D...: 223 KB unused (71%)

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://72164059993b.cdn4.forter.com/sn/7216405999...: 90 KB unused (43%)

Consider code splitting or tree shaking to reduce unused code.

https://ads.pubmatic.com/AdServer/js/pwt/167312/18...: 88 KB unused (65%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.3 MB

1354 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js	576 KB	272 KB (47%)	✓	3rd
https://content.r9cdn.net/frontier/assets/C56mkV0DvP.js	312 KB	223 KB (71%)	✓	3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186 KB	101 KB (54%)	✓	3rd
https://72164059993b.cdn4.forter.com/sn/72164059993b/script.js	211 KB	90 KB (43%)	✓	3rd
https://ads.pubmatic.com/AdServer/js/pwt/167312/18979/pwt.js	136 KB	88 KB (65%)	✓	3rd
https://content.r9cdn.net/frontier/assets/Cy3xa8euyp.js	95 KB	72 KB (76%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c&gtm=4e64e1	172 KB	64 KB (37%)	✓	3rd
https://www.googletagmanager.com/gtag/destination?id=DC-5142311&l=unifiedDataLayer&cx=c&gtm=4e64e1	129 KB	60 KB (47%)	✓	3rd
https://www.googletagmanager.com/gtag/destination?id=AW-undefined&l=unifiedDataLayer&cx=c&gtm=4e64e1	134 KB	60 KB (45%)	✓	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PSCCSHQ&l=unifiedDataLayer	168 KB	59 KB (35%)	✓	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

606 resources · 6.3 MB · 1.3 MB savings available

FIX

606 resources · 6.3 MB · 1.3 MB savings available

Page weight 5.3 MB over 1MB target

Got: 6.3 MB Expected: ≤ 1 MB

~1.3 MB of savings available

605 third-party resources (100% of weight)

4 resources over 200KB

606 resources · 6.3 MiB · 605 third-party 5.3 MiB over 1MB target

JavaScript 61% · 3.8 MiB

Image 27% · 1.7 MiB

CSS 5% · 306.9 KiB

Document 4% · 246.5 KiB

Font 2% · 140.2 KiB

Other 1% · 70.0 KiB

~1.3 MiB of savings available

Remove unused JavaScript: 1.3 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

606 resources			6.3 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

Action

42 images, 0 KB saveable

REVIEW

42 images, 0 KB saveable

https://content.r9cdn.net/rimg/provider-logos/airl... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://content.r9cdn.net/rimg/provider-logos/airl... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://content.r9cdn.net/rimg/provider-logos/airl... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://content.r9cdn.net/rimg/provider-logos/airl... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://content.r9cdn.net/rimg/provider-logos/airl... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

42 images 1.7 MB

0 oversized -0 KB

42 legacy format

5 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

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

1 fonts (140 KB)

PASS

1 fonts (140 KB)

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

Web fonts

140 KB total

Render-blocking

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

CTaes35WVv.woff2 woff2 swap

Size 140 KB

Load time 9 ms

Start 1.4 s

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

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 ~70 KB and ~140 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

8 hints, 0 missing preconnects

PASS

8 hints, 0 missing preconnects

Page uses 8 resource hint(s)

Current Resource Hints

preconnect

preload

—

dns-prefetch

prefetch

—

8 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

606 requests over 6628ms

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 20958ms · 2682KB · $362/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
content.r9cdn.net content.r9cdn.net	Other	5386ms	66 KB	—	$93/mo	Costly
Unattributable Unattributable	Other	4116ms	0 KB	—	$71/mo	Costly
www.kayak.com www.kayak.com	Other	4098ms	230 KB	—	$71/mo	Costly
content.r9cdn.net content.r9cdn.net	Other	1743ms	47 KB	57%	$30/mo	Costly
(program):2 (program):2	Other	656ms	0 KB	—	$11/mo	Costly
securepubads.g.doubleclick.net securepubads.g.doubleclick.net	Other	639ms	186 KB	54%	$11/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	603ms	172 KB	37%	$10/mo	Costly
content.r9cdn.net content.r9cdn.net	Other	454ms	576 KB	47%	$8/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	340ms	144 KB	39%	$6/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	339ms	129 KB	47%	$6/mo	Costly
fundingchoicesmessages.google.com fundingchoicesmessages.google.com	Other	317ms	70 KB	54%	$5/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	283ms	168 KB	35%	$5/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	272ms	134 KB	45%	$5/mo	Costly
ads.pubmatic.com ads.pubmatic.com	Other	267ms	136 KB	65%	$5/mo	Costly
analytics.tiktok.com analytics.tiktok.com	Other	243ms	106 KB	55%	$4/mo	Costly
www.googletagservices.com www.googletagservices.com	Other	199ms	34 KB	—	$3/mo	Optional
content.r9cdn.net content.r9cdn.net	Other	178ms	26 KB	—	$3/mo	Optional
w.usabilla.com w.usabilla.com	Other	100ms	14 KB	—	$2/mo	Optional
content.r9cdn.net content.r9cdn.net	Other	96ms	5 KB	—	$2/mo	Optional
72164059993b.cdn4.forter.com 72164059993b.cdn4.forter.com	Other	91ms	211 KB	43%	$2/mo	Optional
Bing UET bat.bing.com	Advertising	77ms	16 KB	—	$1/mo	Optional
ep2.adtrafficquality.google ep2.adtrafficquality.google	Other	73ms	8 KB	—	$1/mo	Optional
analytics.tiktok.com analytics.tiktok.com	Other	61ms	40 KB	—	$1/mo	Optional
content.r9cdn.net content.r9cdn.net	Other	60ms	48 KB	—	$1/mo	Optional
Bing UET bat.bing.com	Advertising	56ms	15 KB	—	$1/mo	Optional
/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=kernel_loader,loader_js_executable /_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=kernel_loader,loader_js_executable	Other	56ms	0 KB	—	$1/mo	Optional
fundingchoicesmessages.google.com fundingchoicesmessages.google.com	Other	53ms	4 KB	—	$1/mo	Optional
content.r9cdn.net content.r9cdn.net	Other	51ms	2 KB	—	$1/mo	Optional
accounts.google.com accounts.google.com	Other	51ms	96 KB	—	$1/mo	Optional

content.r9cdn.net

Other

Costly

Execution 5386ms

Transfer 66 KB

Monthly Cost $93/mo

Unattributable

Other

Costly

Execution 4116ms

Transfer 0 KB

Monthly Cost $71/mo

www.kayak.com

Other

Costly

Execution 4098ms

Transfer 230 KB

Monthly Cost $71/mo

content.r9cdn.net

Other

Costly

Execution 1743ms

Transfer 47 KB

Unused 57%

Monthly Cost $30/mo

(program):2

Other

Costly

Execution 656ms

Transfer 0 KB

Monthly Cost $11/mo

securepubads.g.doubleclick.net

Other

Costly

Execution 639ms

Transfer 186 KB

Unused 54%

Monthly Cost $11/mo

Google Tag Manager

Tag Manager

Costly

Execution 603ms

Transfer 172 KB

Unused 37%

Monthly Cost $10/mo

content.r9cdn.net

Other

Costly

Execution 454ms

Transfer 576 KB

Unused 47%

Monthly Cost $8/mo

Google Tag Manager

Tag Manager

Costly

Execution 340ms

Transfer 144 KB

Unused 39%

Monthly Cost $6/mo

Google Tag Manager

Tag Manager

Costly

Execution 339ms

Transfer 129 KB

Unused 47%

Monthly Cost $6/mo

fundingchoicesmessages.google.com

Other

Costly

Execution 317ms

Transfer 70 KB

Unused 54%

Monthly Cost $5/mo

Google Tag Manager

Tag Manager

Costly

Execution 283ms

Transfer 168 KB

Unused 35%

Monthly Cost $5/mo

Google Tag Manager

Tag Manager

Costly

Execution 272ms

Transfer 134 KB

Unused 45%

Monthly Cost $5/mo

ads.pubmatic.com

Other

Costly

Execution 267ms

Transfer 136 KB

Unused 65%

Monthly Cost $5/mo

analytics.tiktok.com

Other

Costly

Execution 243ms

Transfer 106 KB

Unused 55%

Monthly Cost $4/mo

www.googletagservices.com

Other

Optional

Execution 199ms

Transfer 34 KB

Monthly Cost $3/mo

content.r9cdn.net

Other

Optional

Execution 178ms

Transfer 26 KB

Monthly Cost $3/mo

w.usabilla.com

Other

Optional

Execution 100ms

Transfer 14 KB

Monthly Cost $2/mo

content.r9cdn.net

Other

Optional

Execution 96ms

Transfer 5 KB

Monthly Cost $2/mo

72164059993b.cdn4.forter.com

Other

Optional

Execution 91ms

Transfer 211 KB

Unused 43%

Monthly Cost $2/mo

Bing UET

Advertising

Optional

Execution 77ms

Transfer 16 KB

Monthly Cost $1/mo

ep2.adtrafficquality.google

Other

Optional

Execution 73ms

Transfer 8 KB

Monthly Cost $1/mo

analytics.tiktok.com

Other

Optional

Execution 61ms

Transfer 40 KB

Monthly Cost $1/mo

content.r9cdn.net

Other

Optional

Execution 60ms

Transfer 48 KB

Monthly Cost $1/mo

Bing UET

Advertising

Optional

Execution 56ms

Transfer 15 KB

Monthly Cost $1/mo

/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=kernel_loader,loader_js_executable

Other

Optional

Execution 56ms

Transfer 0 KB

Monthly Cost $1/mo

fundingchoicesmessages.google.com

Other

Optional

Execution 53ms

Transfer 4 KB

Monthly Cost $1/mo

content.r9cdn.net

Other

Optional

Execution 51ms

Transfer 2 KB

Monthly Cost $1/mo

accounts.google.com

Other

Optional

Execution 51ms

Transfer 96 KB

Monthly Cost $1/mo

These scripts may cost more than they're worth

content.r9cdn.net adds 5386ms and costs ~$93/month
Unattributable adds 4116ms and costs ~$71/month
www.kayak.com adds 4098ms and costs ~$71/month
content.r9cdn.net adds 1743ms and costs ~$30/month
(program):2 adds 656ms and costs ~$11/month
securepubads.g.doubleclick.net adds 639ms and costs ~$11/month
Google Tag Manager adds 603ms and costs ~$10/month
content.r9cdn.net adds 454ms and costs ~$8/month
Google Tag Manager adds 340ms and costs ~$6/month
Google Tag Manager adds 339ms and costs ~$6/month
fundingchoicesmessages.google.com adds 317ms and costs ~$5/month
Google Tag Manager adds 283ms and costs ~$5/month
Google Tag Manager adds 272ms and costs ~$5/month
ads.pubmatic.com adds 267ms and costs ~$5/month
analytics.tiktok.com adds 243ms 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

content.r9cdn.net takes 5386ms 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 4116ms 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.kayak.com takes 4098ms 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

content.r9cdn.net takes 1743ms 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

57% of content.r9cdn.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

(program):2 takes 656ms 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 639ms 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

Google Tag Manager takes 603ms 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

content.r9cdn.net takes 454ms 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 340ms 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 339ms 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

fundingchoicesmessages.google.com takes 317ms 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 fundingchoicesmessages.google.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

Google Tag Manager takes 283ms 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 272ms 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

ads.pubmatic.com takes 267ms 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 ads.pubmatic.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

analytics.tiktok.com takes 243ms 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

55% of analytics.tiktok.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.