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https://yellowpages.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
3
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
60
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

3.44 s

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

8.06 s

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

321 ms

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.

4.17 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.

8.11 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
9 PASS 3 REVIEW 3 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.1 MiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2116ms total JS execution
FIX
2116ms total JS execution
Warning::
https://www.yellowpages.com/: 542ms CPU time
Warning::
Unattributable: 420ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-0EQT...: 365ms CPU time
Warning::
https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79...: 272ms CPU time
Warning::
https://www.yellowpages.com/cdn-cgi/challenge-plat...: 261ms CPU time
Warning::
Third-party scripts: 2116ms (100% of total)

Main Thread Breakdown

Script Evaluation 49% Other 23% Style & Layout 17% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
https://www.yellowpages.com/542ms54ms5ms3rd
Unattributable420ms10ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34W365ms306ms54ms3rd
https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79470272ms215ms10ms3rd
https://www.yellowpages.com/cdn-cgi/challenge-platform/scripts/jsd/main.js261ms248ms3ms3rd
https://i1.ypcdn.com/ypu/vendor/index.bundle.js?7e79470189ms156ms20ms3rd
https://i2.ypcdn.com/ypu/vendor/jquery-ui-1.10.3.custom.min.js?7e7947067ms39ms24ms3rd
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
Page Weight Budget
1.1 MB transferred, 50 requests
REVIEW
1.1 MB transferred, 50 requests
Info::
Page weighs 2.0 MB (1.1 MB transferred)
Info::
50 HTTP requests
Info::
Estimated 0.23 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
50 requests
0.23 g CO2 per page load
Images 665.0 KiB 60%
JavaScript 384.6 KiB 35%
CSS 25.4 KiB 2%
HTML 21.1 KiB 2%
Other 3.1 KiB 0%
Other 2.9 KiB 0%
Other 552 B 0%
Other 552 B 0%
0 2.4 MB 4.9 MB
Under budget
B
Image Optimization
22 images, 0 KB saveable
REVIEW
22 images, 0 KB saveable
Info::
All images are well-optimized
22 images 665 KB
0 oversized -0 KB
22 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
11 scripts, 157 KB unused
REVIEW
11 scripts, 157 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-0EQT...: 70 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://i2.ypcdn.com/ypu/vendor/jquery-ui-1.10.3.c...: 54 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://i1.ypcdn.com/ypu/vendor/index.bundle.js?7e...: 33 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 157 KB
157 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34W177 KB70 KB (40%)✓3rd
https://i2.ypcdn.com/ypu/vendor/jquery-ui-1.10.3.custom.min.js?7e7947061 KB54 KB (90%)✓3rd
https://i1.ypcdn.com/ypu/vendor/index.bundle.js?7e7947067 KB33 KB (50%)✓3rd
https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e7947020 KB—✓3rd
https://i1.ypcdn.com/ypu/js/yp.js?7e794700 KB—✓3rd
https://i1.ypcdn.com/ypu/js/views/view.js?7e794701 KB—✓3rd
https://i1.ypcdn.com/ypu/js/compiled/desktop.js?7e7947028 KB—✓3rd
https://i1.ypcdn.com/ypu/js/compiled/homepage.js?7e794708 KB—✓3rd
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 KB—✓3rd
https://metrics.yellowpages.com/id?d_visid_ver=4.4.0&d_fieldgroup=MC&mcorgid=A57E776A5245AEA80A490D44%40AdobeOrg&ts=17768879911451 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

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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
Page Weight Inventory
50 resources · 1.1 MB · 157 KB savings available
PASS
50 resources · 1.1 MB · 157 KB savings available
Warning::
Page weight 79 KB over 1MB target
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~157 KB of savings available
Warning::
49 third-party resources (100% of weight)
Info::
1 resources over 200KB
50 resources · 1.1 MiB · 49 third-party 79.2 KiB over 1MB target
Image 60% · 665.8 KiB
JavaScript 35% · 385.2 KiB
CSS 2% · 25.4 KiB
Document 2% · 21.1 KiB
Other 1% · 5.7 KiB

~157.1 KiB of savings available

Remove unused JavaScript: 157.1 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
50 requests over 862ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 3.4 s LCP 8.1 shttps://yellowpages.com// https://yellowpages.com/ — 301 — 98 B — 25 ms — h2https://www.yellowpages.com/www.yellowpages.com/ https://www.yellowpages.com/ — 200 — 17.9 KiB — 191 ms — h2https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34Wwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34W — 200 — 177.1 KiB — 119 ms — h2https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79470i1.ypcdn.com/ypu/vendor/VisitorAPI.... https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79470 — 200 — 20.1 KiB — 39 ms — h2https://i3.ypcdn.com/ypu/css/common.min.css?7e79470i3.ypcdn.com/ypu/css/common.min.css... https://i3.ypcdn.com/ypu/css/common.min.css?7e79470 — 200 — 10.1 KiB — 50 ms — h2https://i3.ypcdn.com/ypu/css/jquery-ui-1.10.3.custom.min.css?7e79470i3.ypcdn.com/ypu/css/jquery-ui-1.10... https://i3.ypcdn.com/ypu/css/jquery-ui-1.10.3.custom.min.css?7e79470 — 200 — 5.7 KiB — 52 ms — h2https://i1.ypcdn.com/ypu/css/home.min.css?7e79470i1.ypcdn.com/ypu/css/home.min.css?7... https://i1.ypcdn.com/ypu/css/home.min.css?7e79470 — 200 — 9.7 KiB — 35 ms — h2https://i3.ypcdn.com/ypu/images/svgs/log-in.svg?7e79470i3.ypcdn.com/ypu/images/svgs/log-in... https://i3.ypcdn.com/ypu/images/svgs/log-in.svg?7e79470 — 200 — 921 B — 43 ms — h2https://i2.ypcdn.com/ypu/images/svgs/sign-up.svg?7e79470i2.ypcdn.com/ypu/images/svgs/sign-u... https://i2.ypcdn.com/ypu/images/svgs/sign-up.svg?7e79470 — 200 — 1.1 KiB — 55 ms — h2https://dpm.demdex.net/id?d_visid_ver=4.4.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_verify=1&d_orgid=A57E776A5245AEA80A490D44%40AdobeOrg&d_nsid=0&ts=1776887990900dpm.demdex.net/id?d_visid_ver=4.4.0... https://dpm.demdex.net/id?d_visid_ver=4.4.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_verify=1&d_orgid=A57E776A5245AEA80A490D44%40AdobeOrg&d_nsid=0&ts=1776887990900 — 302 — 676 B — 207 ms — h2https://i2.ypcdn.com/ypu/images/svgs/small_avatar.svg?7e79470i2.ypcdn.com/ypu/images/svgs/small_... https://i2.ypcdn.com/ypu/images/svgs/small_avatar.svg?7e79470 — 200 — 838 B — 20 ms — h2https://i1.ypcdn.com/ypu/images/svgs/explore-cities.svg?7e79470i1.ypcdn.com/ypu/images/svgs/explor... https://i1.ypcdn.com/ypu/images/svgs/explore-cities.svg?7e79470 — 200 — 852 B — 21 ms — h2https://i3.ypcdn.com/ypu/images/svgs/download.svg?7e79470i3.ypcdn.com/ypu/images/svgs/downlo... https://i3.ypcdn.com/ypu/images/svgs/download.svg?7e79470 — 200 — 565 B — 23 ms — h2https://c.ypcdn.com/2/p/m.yp.com?ptid=MOBWEB&rid=m.yp.com-75132a1f-814b-467f-a7f2-d1139697186f&vrid=83f3a4b6-d43b-44ae-a375-e4077a7ad949c.ypcdn.com/2/p/m.yp.com?ptid=MOBWE... https://c.ypcdn.com/2/p/m.yp.com?ptid=MOBWEB&rid=m.yp.com-75132a1f-814b-467f-a7f2-d1139697186f&vrid=83f3a4b6-d43b-44ae-a375-e4077a7ad949 — 200 — 538 B — 131 ms — h2https://i3.ypcdn.com/ypu/images/svgs/mobile_yp_logo.svg?7e79470i3.ypcdn.com/ypu/images/svgs/mobile... https://i3.ypcdn.com/ypu/images/svgs/mobile_yp_logo.svg?7e79470 — 200 — 1.2 KiB — 25 ms — h2https://i4.ypcdn.com/ypu/images/svgs/yp.svg?7e79470i4.ypcdn.com/ypu/images/svgs/yp.svg... https://i4.ypcdn.com/ypu/images/svgs/yp.svg?7e79470 — 200 — 3.1 KiB — 90 ms — h2https://i1.ypcdn.com/ypu/images/svgs/advertise-w-us.svg?7e79470i1.ypcdn.com/ypu/images/svgs/advert... https://i1.ypcdn.com/ypu/images/svgs/advertise-w-us.svg?7e79470 — 200 — 534 B — 15 ms — h2https://i2.ypcdn.com/ypu/images/home/claim@2x.png?7e79470i2.ypcdn.com/ypu/images/home/claim@... https://i2.ypcdn.com/ypu/images/home/claim@2x.png?7e79470 — 200 — 117.5 KiB — 88 ms — h2https://i3.ypcdn.com/ypu/images/home/qna@2x.png?7e79470i3.ypcdn.com/ypu/images/home/qna@2x... https://i3.ypcdn.com/ypu/images/home/qna@2x.png?7e79470 — 200 — 218.5 KiB — 93 ms — h2https://i3.ypcdn.com/ypu/images/home/advertise@2x.jpg?7e79470i3.ypcdn.com/ypu/images/home/advert... https://i3.ypcdn.com/ypu/images/home/advertise@2x.jpg?7e79470 — 200 — 80.4 KiB — 93 ms — h2https://i1.ypcdn.com/ypu/images/home/app@2x.png?7e79470i1.ypcdn.com/ypu/images/home/app@2x... https://i1.ypcdn.com/ypu/images/home/app@2x.png?7e79470 — 200 — 105.2 KiB — 87 ms — h2https://i1.ypcdn.com/ypu/images/home/badge_google_store.svg?7e79470i1.ypcdn.com/ypu/images/home/badge_... https://i1.ypcdn.com/ypu/images/home/badge_google_store.svg?7e79470 — 200 — 4.6 KiB — 72 ms — h2https://i4.ypcdn.com/ypu/images/home/badge_apple_store.svg?7e79470i4.ypcdn.com/ypu/images/home/badge_... https://i4.ypcdn.com/ypu/images/home/badge_apple_store.svg?7e79470 — 200 — 8.0 KiB — 83 ms — h2https://i1.ypcdn.com/ypu/images/intelius-logo.png?7e79470i1.ypcdn.com/ypu/images/intelius-lo... https://i1.ypcdn.com/ypu/images/intelius-logo.png?7e79470 — 200 — 1.4 KiB — 58 ms — h2https://i1.ypcdn.com/ypu/vendor/index.bundle.js?7e79470i1.ypcdn.com/ypu/vendor/index.bundl... https://i1.ypcdn.com/ypu/vendor/index.bundle.js?7e79470 — 200 — 66.9 KiB — 90 ms — h2https://i2.ypcdn.com/ypu/vendor/jquery-ui-1.10.3.custom.min.js?7e79470i2.ypcdn.com/ypu/vendor/jquery-ui-1... https://i2.ypcdn.com/ypu/vendor/jquery-ui-1.10.3.custom.min.js?7e79470 — 200 — 60.7 KiB — 83 ms — h2https://i1.ypcdn.com/ypu/js/yp.js?7e79470i1.ypcdn.com/ypu/js/yp.js?7e79470 https://i1.ypcdn.com/ypu/js/yp.js?7e79470 — 200 — 397 B — 26 ms — h2https://i1.ypcdn.com/ypu/js/views/view.js?7e79470i1.ypcdn.com/ypu/js/views/view.js?7... https://i1.ypcdn.com/ypu/js/views/view.js?7e79470 — 200 — 1.3 KiB — 51 ms — h2https://i1.ypcdn.com/ypu/js/compiled/desktop.js?7e79470i1.ypcdn.com/ypu/js/compiled/deskto... https://i1.ypcdn.com/ypu/js/compiled/desktop.js?7e79470 — 200 — 27.7 KiB — 76 ms — h2https://i1.ypcdn.com/ypu/js/compiled/homepage.js?7e79470i1.ypcdn.com/ypu/js/compiled/homepa... https://i1.ypcdn.com/ypu/js/compiled/homepage.js?7e79470 — 200 — 7.8 KiB — 54 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 3.4 s LCP 8.1 shttps://yellowpages.com// https://yellowpages.com/ — 301 — 98 B — 25 ms — h2https://www.yellowpages.com/www.yellowpages.com/ https://www.yellowpages.com/ — 200 — 17.9 KiB — 191 ms — h2https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34Wwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-0EQTJQH34W — 200 — 177.1 KiB — 119 ms — h2https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79470i1.ypcdn.com/ypu/vendor/VisitorAPI.... https://i1.ypcdn.com/ypu/vendor/VisitorAPI.js?7e79470 — 200 — 20.1 KiB — 39 ms — h2https://i3.ypcdn.com/ypu/css/common.min.css?7e79470i3.ypcdn.com/ypu/css/common.min.css... https://i3.ypcdn.com/ypu/css/common.min.css?7e79470 — 200 — 10.1 KiB — 50 ms — h2https://i3.ypcdn.com/ypu/css/jquery-ui-1.10.3.custom.min.css?7e79470i3.ypcdn.com/ypu/css/jquery-ui-1.10... https://i3.ypcdn.com/ypu/css/jquery-ui-1.10.3.custom.min.css?7e79470 — 200 — 5.7 KiB — 52 ms — h2https://i1.ypcdn.com/ypu/css/home.min.css?7e79470i1.ypcdn.com/ypu/css/home.min.css?7... https://i1.ypcdn.com/ypu/css/home.min.css?7e79470 — 200 — 9.7 KiB — 35 ms — h2https://i3.ypcdn.com/ypu/images/svgs/log-in.svg?7e79470i3.ypcdn.com/ypu/images/svgs/log-in... https://i3.ypcdn.com/ypu/images/svgs/log-in.svg?7e79470 — 200 — 921 B — 43 ms — h2https://i2.ypcdn.com/ypu/images/svgs/sign-up.svg?7e79470i2.ypcdn.com/ypu/images/svgs/sign-u... https://i2.ypcdn.com/ypu/images/svgs/sign-up.svg?7e79470 — 200 — 1.1 KiB — 55 ms — h2https://dpm.demdex.net/id?d_visid_ver=4.4.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_verify=1&d_orgid=A57E776A5245AEA80A490D44%40AdobeOrg&d_nsid=0&ts=1776887990900dpm.demdex.net/id?d_visid_ver=4.4.0... https://dpm.demdex.net/id?d_visid_ver=4.4.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_verify=1&d_orgid=A57E776A5245AEA80A490D44%40AdobeOrg&d_nsid=0&ts=1776887990900 — 302 — 676 B — 207 ms — h2https://i2.ypcdn.com/ypu/images/svgs/small_avatar.svg?7e79470i2.ypcdn.com/ypu/images/svgs/small_... https://i2.ypcdn.com/ypu/images/svgs/small_avatar.svg?7e79470 — 200 — 838 B — 20 ms — h2https://i1.ypcdn.com/ypu/images/svgs/explore-cities.svg?7e79470i1.ypcdn.com/ypu/images/svgs/explor... https://i1.ypcdn.com/ypu/images/svgs/explore-cities.svg?7e79470 — 200 — 852 B — 21 ms — h2https://i3.ypcdn.com/ypu/images/svgs/download.svg?7e79470i3.ypcdn.com/ypu/images/svgs/downlo... https://i3.ypcdn.com/ypu/images/svgs/download.svg?7e79470 — 200 — 565 B — 23 ms — h2https://c.ypcdn.com/2/p/m.yp.com?ptid=MOBWEB&rid=m.yp.com-75132a1f-814b-467f-a7f2-d1139697186f&vrid=83f3a4b6-d43b-44ae-a375-e4077a7ad949c.ypcdn.com/2/p/m.yp.com?ptid=MOBWE... https://c.ypcdn.com/2/p/m.yp.com?ptid=MOBWEB&rid=m.yp.com-75132a1f-814b-467f-a7f2-d1139697186f&vrid=83f3a4b6-d43b-44ae-a375-e4077a7ad949 — 200 — 538 B — 131 ms — h2https://i3.ypcdn.com/ypu/images/svgs/mobile_yp_logo.svg?7e79470i3.ypcdn.com/ypu/images/svgs/mobile... https://i3.ypcdn.com/ypu/images/svgs/mobile_yp_logo.svg?7e79470 — 200 — 1.2 KiB — 25 ms — h2https://i4.ypcdn.com/ypu/images/svgs/yp.svg?7e79470i4.ypcdn.com/ypu/images/svgs/yp.svg... https://i4.ypcdn.com/ypu/images/svgs/yp.svg?7e79470 — 200 — 3.1 KiB — 90 ms — h2https://i1.ypcdn.com/ypu/images/svgs/advertise-w-us.svg?7e79470i1.ypcdn.com/ypu/images/svgs/advert... https://i1.ypcdn.com/ypu/images/svgs/advertise-w-us.svg?7e79470 — 200 — 534 B — 15 ms — h2https://i2.ypcdn.com/ypu/images/home/claim@2x.png?7e79470i2.ypcdn.com/ypu/images/home/claim@... https://i2.ypcdn.com/ypu/images/home/claim@2x.png?7e79470 — 200 — 117.5 KiB — 88 ms — h2https://i3.ypcdn.com/ypu/images/home/qna@2x.png?7e79470i3.ypcdn.com/ypu/images/home/qna@2x... https://i3.ypcdn.com/ypu/images/home/qna@2x.png?7e79470 — 200 — 218.5 KiB — 93 ms — h2https://i3.ypcdn.com/ypu/images/home/advertise@2x.jpg?7e79470i3.ypcdn.com/ypu/images/home/advert... https://i3.ypcdn.com/ypu/images/home/advertise@2x.jpg?7e79470 — 200 — 80.4 KiB — 93 ms — h2https://i1.ypcdn.com/ypu/images/home/app@2x.png?7e79470i1.ypcdn.com/ypu/images/home/app@2x... https://i1.ypcdn.com/ypu/images/home/app@2x.png?7e79470 — 200 — 105.2 KiB — 87 ms — h2https://i1.ypcdn.com/ypu/images/home/badge_google_store.svg?7e79470i1.ypcdn.com/ypu/images/home/badge_... https://i1.ypcdn.com/ypu/images/home/badge_google_store.svg?7e79470 — 200 — 4.6 KiB — 72 ms — h2https://i4.ypcdn.com/ypu/images/home/badge_apple_store.svg?7e79470i4.ypcdn.com/ypu/images/home/badge_... https://i4.ypcdn.com/ypu/images/home/badge_apple_store.svg?7e79470 — 200 — 8.0 KiB — 83 ms — h2https://i1.ypcdn.com/ypu/images/intelius-logo.png?7e79470i1.ypcdn.com/ypu/images/intelius-lo... https://i1.ypcdn.com/ypu/images/intelius-logo.png?7e79470 — 200 — 1.4 KiB — 58 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 2116ms · 343KB · $28/mo
www.yellowpages.com
Other
Costly
Execution 542ms
Transfer 18 KB
Monthly Cost $7/mo
Unattributable
Other
Costly
Execution 420ms
Transfer 0 KB
Monthly Cost $6/mo
Google Tag Manager
Tag Manager
Costly
Execution 365ms
Transfer 177 KB
Unused 40%
Monthly Cost $5/mo
i1.ypcdn.com
Other
Costly
Execution 272ms
Transfer 20 KB
Monthly Cost $4/mo
www.yellowpages.com
Other
Costly
Execution 261ms
Transfer 0 KB
Monthly Cost $3/mo
i1.ypcdn.com
Other
Optional
Execution 189ms
Transfer 67 KB
Unused 50%
Monthly Cost $3/mo
i2.ypcdn.com
Other
Optional
Execution 67ms
Transfer 61 KB
Unused 90%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.yellowpages.com adds 542ms and costs ~$7/month
  • Unattributable adds 420ms and costs ~$6/month
  • Google Tag Manager adds 365ms and costs ~$5/month
  • i1.ypcdn.com adds 272ms and costs ~$4/month
  • www.yellowpages.com adds 261ms 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

www.yellowpages.com takes 542ms 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 420ms 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 365ms 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

i1.ypcdn.com 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

www.yellowpages.com takes 261ms 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

90% of i2.ypcdn.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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