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https://hud.gov

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
5
REVIEW
2
PASS
6
INFO
2

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

Mobile Desktop
50
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
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.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

1.45 s

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

3.68 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.

0.745

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

1.81 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.

3.68 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
15
6 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
3.7 MB transferred, 40 requests
FIX
3.7 MB transferred, 40 requests
Warning::
Page weighs 4.4 MB (3.7 MB transferred)
Warning::
Images are 3.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.1 MB
Info::
40 HTTP requests
Info::
Estimated 0.78 g CO2 per page load
3.7 MB / 2.4 MB budget
3.7 MB transferred
40 requests
0.78 g CO2 per page load
Images 3.1 MiB 82%
JavaScript 394.9 KiB 10%
HTML 151.7 KiB 4%
Fonts 67.7 KiB 2%
CSS 40.0 KiB 1%
Other 15.6 KiB 0%
Other 547 B 0%
Other 371 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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 (3.7 MiB of 3.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
5 scripts, 211 KB unused
FIX
5 scripts, 211 KB unused
Warning::
https://www.hud.gov/sites/default/files/js/js_Levb...: 68 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hud.gov/core/assets/vendor/jquery/jque...: 62 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 60 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hud.gov/sites/all/themes/bootstrap_hud...: 21 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hud.gov/sites/all/themes/bootstrap_hud...: unminified — 26 KB could be saved
Info::
Total unused JavaScript: 211 KB
211 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.hud.gov/sites/default/files/js/js_LevbP7cMcpmkZENVB_-kzNQz39UDvfkiWONCEu8qm3M.js?scope=footer&delta=0&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxFyEsKgDAMBcALlfZM6QeJBF5IXsXju1JnOR1gMsSbw3GtKP0bAkb1khRqUke2GdvF6j9lINbbU8VwVDnlfgAt8yMA94 KB68 KB (72%)✓3rd
https://www.hud.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.186 KB62 KB (73%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147 KB60 KB (41%)✓3rd
https://www.hud.gov/sites/all/themes/bootstrap_hudgov/bootstrap/js/Univ-Federated-Analytics.js60 KB21 KB (35%)✗3rd
https://cdn.gtranslate.net/widgets/latest/float.js7 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

D
Page Weight Inventory
Action
40 resources · 3.7 MB · 211 KB savings available
FIX
40 resources · 3.7 MB · 211 KB savings available
Warning::
Page weight 2.7 MB over 1MB target
Got: 3.7 MB Expected: ≤ 1 MB
Info::
~211 KB of savings available
Warning::
39 third-party resources (100% of weight)
Info::
5 resources over 200KB
40 resources · 3.7 MiB · 39 third-party 2.7 MiB over 1MB target
Image 83% · 3.1 MiB
JavaScript 10% · 394.9 KiB
Document 4% · 152.1 KiB
Font 2% · 67.7 KiB
CSS 1% · 40.0 KiB
Other 0% · 656 B

~211.2 KiB of savings available

Remove unused JavaScript: 211.2 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
17 images, 0 KB saveable
REVIEW
17 images, 0 KB saveable
Warning::
https://www.hud.gov/sites/default/files/Main/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.hud.gov/sites/dfiles/Main/images/hudfo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.hud.gov/sites/dfiles/Main/images/us_fl... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.hud.gov/sites/dfiles/Main/images/foote... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.hud.gov/sites/default/files/Main/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
17 images 3.1 MB
0 oversized -0 KB
16 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

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+
JS Execution Cost
301ms total JS execution
PASS
301ms total JS execution
Info::
https://www.hud.gov/: 119ms CPU time
Info::
Unattributable: 107ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 75ms CPU time
Warning::
Third-party scripts: 301ms (100% of total)

Main Thread Breakdown

Script Evaluation 32% Other 32% Style & Layout 19% Script Parsing & Compilation 9% Parse HTML & CSS 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.hud.gov/119ms6ms2ms3rd
Unattributable107ms3ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L75ms61ms13ms3rd
A+
Font Loading
7 fonts (68 KB)
PASS
7 fonts (68 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

68 KB total

Render-blocking

0

of 7

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 1.4 s LCP 3.7 shttps://fonts.gstatic.com/s/ibmplexserif/v20/jizDREVNn1dOx-zrZ2X3pZvkTiUf2zcZiVbJ.woff2jizDREVNn1dOx-zrZ2X3pZv... https://fonts.gstatic.com/s/ibmplexserif/v20/jizDREVNn1dOx-zrZ2X3pZvkTiUf2zcZiVbJ.woff2 — 14.6 KiB — 10 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLEj6Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2 — 7.8 KiB — 14 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2pxiEyp8kv8JHgFVrJJfecnF... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 7.7 KiB — 7 ms — font-display: swaphttps://fonts.gstatic.com/s/ibmplexserif/v20/jizAREVNn1dOx-zrZ2X3pZvkTi2k_iI0q1vjitOh.woff2jizAREVNn1dOx-zrZ2X3pZv... https://fonts.gstatic.com/s/ibmplexserif/v20/jizAREVNn1dOx-zrZ2X3pZvkTi2k_iI0q1vjitOh.woff2 — 14.6 KiB — 15 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLCz7Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2 — 7.7 KiB — 11 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLGT9Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2 — 7.6 KiB — 9 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLDz8Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2 — 7.7 KiB — 7 ms — font-display: swap
jizDREVNn1dOx-zrZ2X3pZv... woff2 swap
Size 15 KB
Load time 10 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLEj6Z1x... woff2 swap
Size 8 KB
Load time 14 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
pxiEyp8kv8JHgFVrJJfecnF... woff2 swap
Size 8 KB
Load time 7 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
jizAREVNn1dOx-zrZ2X3pZv... woff2 swap
Size 15 KB
Load time 15 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLCz7Z1x... woff2 swap
Size 8 KB
Load time 11 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLGT9Z1x... woff2 swap
Size 8 KB
Load time 9 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDz8Z1x... woff2 swap
Size 8 KB
Load time 7 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
Network Waterfall
40 requests over 2363ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.4 s LCP 3.7 shttps://hud.gov// https://hud.gov/ — 301 — 109 B — 272 ms — http/1.0https://www.hud.gov/www.hud.gov/ https://www.hud.gov/ — 200 — 151.7 KiB — 678 ms — http/1.1https://www.hud.gov/sites/default/files/css/css_Yd7dQPQjg5lzg3O6_W-wP44lFS5Xmn66WVmyRfBFAGw.css?delta=0&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxVyEEKgDAMBMAPFfum1MYitmzYjYi_9-wcR6_SV20mLw1IJS3qQVv-gFfZQa-dd9jcghh06Zf9tInxAfAuG9Awww.hud.gov/sites/default/files/css... https://www.hud.gov/sites/default/files/css/css_Yd7dQPQjg5lzg3O6_W-wP44lFS5Xmn66WVmyRfBFAGw.css?delta=0&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxVyEEKgDAMBMAPFfum1MYitmzYjYi_9-wcR6_SV20mLw1IJS3qQVv-gFfZQa-dd9jcghh06Zf9tInxAfAuG9A — 200 — 5.0 KiB — 294 ms — http/1.1https://www.hud.gov/sites/default/files/css/css_waSfeNmszORsR2rItxNZpdo-nOxn4xztnicTujU3Ngk.css?delta=1&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxVyEEKgDAMBMAPFfum1MYitmzYjYi_9-wcR6_SV20mLw1IJS3qQVv-gFfZQa-dd9jcghh06Zf9tInxAfAuG9Awww.hud.gov/sites/default/files/css... https://www.hud.gov/sites/default/files/css/css_waSfeNmszORsR2rItxNZpdo-nOxn4xztnicTujU3Ngk.css?delta=1&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxVyEEKgDAMBMAPFfum1MYitmzYjYi_9-wcR6_SV20mLw1IJS3qQVv-gFfZQa-dd9jcghh06Zf9tInxAfAuG9A — 200 — 24.7 KiB — 389 ms — http/1.1https://fonts.googleapis.com/css?family=Open+Sans|Open+Sans+Condensed:300,700fonts.googleapis.com/css?family=Ope... https://fonts.googleapis.com/css?family=Open+Sans|Open+Sans+Condensed:300,700 — 200 — 1.8 KiB — 42 ms — h2https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700fonts.googleapis.com/css?family=Pop... https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700 — 200 — 1.0 KiB — 38 ms — h2https://fonts.googleapis.com/css?family=IBM+Plex+Serif:300,400,500,600,700fonts.googleapis.com/css?family=IBM... https://fonts.googleapis.com/css?family=IBM+Plex+Serif:300,400,500,600,700 — 200 — 842 B — 40 ms — h2https://www.hud.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.1www.hud.gov/core/assets/vendor/jque... https://www.hud.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 — 200 — 86.0 KiB — 539 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/us_flag_small.pngwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/us_flag_small.png — 200 — 663 B — 95 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/icon-dot-gov.svgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/icon-dot-gov.svg — 200 — 1.3 KiB — 148 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/icon-https.svgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/icon-https.svg — 200 — 1.2 KiB — 156 ms — http/1.1https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.cssmaxcdn.bootstrapcdn.com/font-awesom... https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css — 200 — 6.6 KiB — 20 ms — h3https://www.hud.gov/sites/default/files/Main/images/hud-seal-white4.pngwww.hud.gov/sites/default/files/Mai... https://www.hud.gov/sites/default/files/Main/images/hud-seal-white4.png — 200 — 18.5 KiB — 219 ms — http/1.1https://www.hud.gov/sites/default/files/Main/images/homes-with-flag.jpgwww.hud.gov/sites/default/files/Mai... https://www.hud.gov/sites/default/files/Main/images/homes-with-flag.jpg — 200 — 661.2 KiB — 1.1 s — http/1.1https://www.hud.gov/sites/default/files/js/js_LevbP7cMcpmkZENVB_-kzNQz39UDvfkiWONCEu8qm3M.js?scope=footer&delta=0&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxFyEsKgDAMBcALlfZM6QeJBF5IXsXju1JnOR1gMsSbw3GtKP0bAkb1khRqUke2GdvF6j9lINbbU8VwVDnlfgAt8yMAwww.hud.gov/sites/default/files/js/... https://www.hud.gov/sites/default/files/js/js_LevbP7cMcpmkZENVB_-kzNQz39UDvfkiWONCEu8qm3M.js?scope=footer&delta=0&language=en&theme=bootstrap_hudgov_v2021_t1&include=eJxFyEsKgDAMBcALlfZM6QeJBF5IXsXju1JnOR1gMsSbw3GtKP0bAkb1khRqUke2GdvF6j9lINbbU8VwVDnlfgAt8yMA — 200 — 94.3 KiB — 448 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/hudfooter11.jpgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/hudfooter11.jpg — 200 — 1.1 MiB — 1.2 s — http/1.1https://www.hud.gov/sites/dfiles/Main/images/footeragencyicons_vertical3.pngwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/footeragencyicons_vertical3.png — 200 — 18.0 KiB — 96 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/footersocialicons4.pngwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/footersocialicons4.png — 200 — 3.0 KiB — 94 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/footeragencyicons_horizontal4.jpgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/footeragencyicons_horizontal4.jpg — 200 — 10.8 KiB — 96 ms — http/1.1https://cdn.gtranslate.net/widgets/latest/float.jscdn.gtranslate.net/widgets/latest/f... https://cdn.gtranslate.net/widgets/latest/float.js — 200 — 7.1 KiB — 23 ms — h2data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512' viewBox='0 0 …www.w3.org/2000/svg' width='512' he... data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512' viewBox='0 0 … — 200 — 0 B — 0 ms — datahttps://www.hud.gov/sites/dfiles/Main/images/hamburger_nav.pngwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/hamburger_nav.png — 200 — 1.4 KiB — 95 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/hudfeature2.jpgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/hudfeature2.jpg — 200 — 299.4 KiB — 494 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/hudfeature3.jpgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/hudfeature3.jpg — 200 — 399.8 KiB — 503 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/search_icon_blue.pngwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/search_icon_blue.png — 200 — 1.8 KiB — 159 ms — http/1.1https://www.hud.gov/sites/dfiles/Main/images/hudfeature4.jpgwww.hud.gov/sites/dfiles/Main/image... https://www.hud.gov/sites/dfiles/Main/images/hudfeature4.jpg — 200 — 617.9 KiB — 844 ms — http/1.1https://fonts.gstatic.com/s/ibmplexserif/v20/jizDREVNn1dOx-zrZ2X3pZvkTiUf2zcZiVbJ.woff2fonts.gstatic.com/s/ibmplexserif/v2... https://fonts.gstatic.com/s/ibmplexserif/v20/jizDREVNn1dOx-zrZ2X3pZvkTiUf2zcZiVbJ.woff2 — 200 — 14.6 KiB — 10 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2 — 200 — 7.8 KiB — 14 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 200 — 7.7 KiB — 7 ms — h3https://fonts.gstatic.com/s/ibmplexserif/v20/jizAREVNn1dOx-zrZ2X3pZvkTi2k_iI0q1vjitOh.woff2fonts.gstatic.com/s/ibmplexserif/v2... https://fonts.gstatic.com/s/ibmplexserif/v20/jizAREVNn1dOx-zrZ2X3pZvkTi2k_iI0q1vjitOh.woff2 — 200 — 14.6 KiB — 15 ms — h3
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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 301ms · 299KB · $4/mo
www.hud.gov
Other
Optional
Execution 119ms
Transfer 152 KB
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 107ms
Transfer 0 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 75ms
Transfer 147 KB
Unused 41%
Monthly Cost $1/mo

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

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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