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https://utah.gov

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
77
GRADE
C
FIX
3
REVIEW
5
PASS
5
INFO
2

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

Mobile Desktop
70
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

2.25 s

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

2.35 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.

0.001

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

4.45 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.

2.35 s

Page Load Progression

834 ms
1.7 s
2.5 s
3.3 s
4.2 s
5.0 s
5.8 s
6.7 s
Checks
15
5 PASS 5 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 (1.8 MiB of 1.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
55 resources · 1.8 MB · 161 KB savings available
FIX
55 resources · 1.8 MB · 161 KB savings available
Warning::
Page weight 847 KB over 1MB target
Got: 1.8 MB Expected: ≤ 1 MB
Info::
~161 KB of savings available
Warning::
54 third-party resources (100% of weight)
Info::
3 resources over 200KB
55 resources · 1.8 MiB · 54 third-party 847.0 KiB over 1MB target
Image 70% · 1.3 MiB
JavaScript 20% · 378.1 KiB
CSS 6% · 104.7 KiB
Font 2% · 42.0 KiB
Other 1% · 18.7 KiB
Document 1% · 16.1 KiB

~161.2 KiB of savings available

Remove unused JavaScript: 161.2 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
Page Weight Budget
Action
1.8 MB transferred, 55 requests
REVIEW
1.8 MB transferred, 55 requests
Info::
Page weighs 2.6 MB (1.8 MB transferred)
Warning::
Images are 1.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.3 MB
Info::
55 HTTP requests
Info::
Estimated 0.38 g CO2 per page load
1.8 MB / 2.4 MB budget
1.8 MB transferred
55 requests
0.38 g CO2 per page load
Images 1.3 MiB 70%
JavaScript 378.1 KiB 20%
CSS 104.7 KiB 6%
Fonts 42.0 KiB 2%
HTML 15.1 KiB 1%
Other 12.0 KiB 1%
Other 5.6 KiB 0%
Other 3.0 KiB 0%
Other 1.1 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

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

B
Image Optimization
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Info::
All images are well-optimized
21 images 1.3 MB
0 oversized -0 KB
21 legacy format
0 missing dimensions CLS risk
B
JS Execution Cost
657ms total JS execution
REVIEW
657ms total JS execution
Warning::
https://www.utah.gov/index.html: 305ms CPU time
Info::
https://siteintercept.qualtrics.com/dxjsmodule/12....: 142ms CPU time
Info::
Unattributable: 133ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-621Q...: 77ms CPU time
Warning::
Third-party scripts: 657ms (100% of total)

Main Thread Breakdown

Script Evaluation 42% Other 29% Style & Layout 17% Script Parsing & Compilation 6% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://www.utah.gov/index.html305ms64ms1ms3rd
https://siteintercept.qualtrics.com/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.gov142ms125ms6ms3rd
Unattributable133ms8ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJ77ms45ms20ms3rd
C
JS Bundles
Action
11 scripts, 161 KB unused
REVIEW
11 scripts, 161 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-621Q...: 63 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.utah.gov/js/scripts.min.js?v=20260410: 56 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://siteintercept.qualtrics.com/dxjsmodule/12....: 21 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://siteintercept.qualtrics.com/dxjsmodule/Cor...: 21 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 161 KB
161 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJ157 KB63 KB (40%)✓3rd
https://www.utah.gov/js/scripts.min.js?v=2026041091 KB56 KB (61%)✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.gov36 KB21 KB (60%)✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/CoreModule.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=utconcierge31 KB21 KB (68%)✓3rd
https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/utah-design-system-header.5.0.0.1.umd.js0 KB—✓3rd
https://znbpzg8vfyvvbekxw-utconcierge.siteintercept.qualtrics.com/SIE/?Q_ZID=ZN_bPzG8VFyVvBeKxw5 KB—✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.gov19 KB—✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/7.f7df015b06d8a90ce822.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=utconcierge1 KB—✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/1.bc67e778235741631577.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=utconcierge7 KB—✓3rd
https://siteintercept.qualtrics.com/dxjsmodule/FeedbackButtonModule.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=utconcierge19 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
1 fonts (42 KB)
PASS
1 fonts (42 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

42 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 2.3 s LCP 2.4 shttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 42.0 KiB — 11 ms — font-display: swap
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 11 ms
Start 2.9 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
55 requests over 5015ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 2.3 s LCP 2.4 shttps://utah.gov// https://utah.gov/ — 302 — 124 B — 611 ms — http/1.0https://www.utah.gov/www.utah.gov/ https://www.utah.gov/ — 302 — 306 B — 1.1 s — h2http://www.utah.gov/index.htmlwww.utah.gov/index.html http://www.utah.gov/index.html — 307 — 0 B — 1 ms — http/1.1https://www.utah.gov/index.htmlwww.utah.gov/index.html https://www.utah.gov/index.html — 200 — 15.1 KiB — 164 ms — h2https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/style.5.0.0.1.csscdn.utah.gov/dts-ds-custom-header-p... https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/style.5.0.0.1.css — -1 — 0 B — 481 ms — https://www.utah.gov/css/styles.css?v=20260410www.utah.gov/css/styles.css?v=20260... https://www.utah.gov/css/styles.css?v=20260410 — 200 — 102.2 KiB — 832 ms — h2https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/utah-design-system-header.5.0.0.1.umd.jscdn.utah.gov/dts-ds-custom-header-p... https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/utah-design-system-header.5.0.0.1.umd.js — -1 — 0 B — 483 ms — https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJ — 200 — 157.3 KiB — 75 ms — h2https://www.utah.gov/img/misc/gov-legislative.pngwww.utah.gov/img/misc/gov-legislati... https://www.utah.gov/img/misc/gov-legislative.png — 200 — 4.5 KiB — 502 ms — h2https://www.utah.gov/img/misc/local-community.pngwww.utah.gov/img/misc/local-communi... https://www.utah.gov/img/misc/local-community.png — 200 — 4.7 KiB — 500 ms — h2https://www.utah.gov/img/misc/employment-carreers.pngwww.utah.gov/img/misc/employment-ca... https://www.utah.gov/img/misc/employment-carreers.png — 200 — 11.1 KiB — 476 ms — h2https://www.utah.gov/img/misc/visit-hike.pngwww.utah.gov/img/misc/visit-hike.pn... https://www.utah.gov/img/misc/visit-hike.png — 200 — 4.3 KiB — 171 ms — h2https://www.utah.gov/img/services/dnr-stateparks.pngwww.utah.gov/img/services/dnr-state... https://www.utah.gov/img/services/dnr-stateparks.png — 200 — 11.0 KiB — 174 ms — h2https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700&family=Open+Sans:wght@300;400;600;700&display=swapfonts.googleapis.com/css2?family=Me... https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700&family=Open+Sans:wght@300;400;600;700&display=swap — 200 — 2.5 KiB — 49 ms — h2https://www.utah.gov/js/scripts.min.js?v=20260410www.utah.gov/js/scripts.min.js?v=20... https://www.utah.gov/js/scripts.min.js?v=20260410 — 200 — 91.3 KiB — 508 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-621Q114PFJ&gtm=45je64h1h1v9102131922za200zd9102131922&_p=1776805214819&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1522629664.1776805215&frm=0&pscdl=noapi&rcb=8&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938465~115938469~117266401~117884344&sid=1776805214&sct=1&seg=0&dl=https%3A%2F%2Fwww.utah.gov%2Findex.html&dt=Home%20%7C%20Utah.gov&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=2811region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-621Q114PFJ&gtm=45je64h1h1v9102131922za200zd9102131922&_p=1776805214819&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1522629664.1776805215&frm=0&pscdl=noapi&rcb=8&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938465~115938469~117266401~117884344&sid=1776805214&sct=1&seg=0&dl=https%3A%2F%2Fwww.utah.gov%2Findex.html&dt=Home%20%7C%20Utah.gov&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=2811 — 204 — 547 B — 75 ms — h2https://www.utah.gov/img/deviceIcons/manifest.jsonwww.utah.gov/img/deviceIcons/manife... https://www.utah.gov/img/deviceIcons/manifest.json — 200 — 1.1 KiB — 180 ms — h2https://www.utah.gov/img/misc/def-more.pngwww.utah.gov/img/misc/def-more.png https://www.utah.gov/img/misc/def-more.png — 200 — 1.2 KiB — 163 ms — h2https://www.utah.gov/img/icons/search.svgwww.utah.gov/img/icons/search.svg https://www.utah.gov/img/icons/search.svg — 200 — 835 B — 170 ms — h2https://www.utah.gov/img/icons/person_pin.svgwww.utah.gov/img/icons/person_pin.s... https://www.utah.gov/img/icons/person_pin.svg — 200 — 758 B — 476 ms — h2https://www.utah.gov/img/icons/more.svgwww.utah.gov/img/icons/more.svg https://www.utah.gov/img/icons/more.svg — 200 — 621 B — 478 ms — h2https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2fonts.gstatic.com/s/opensans/v44/me... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 200 — 42.0 KiB — 11 ms — h3https://www.utah.gov/js/data/backgrounds.jsonwww.utah.gov/js/data/backgrounds.js... https://www.utah.gov/js/data/backgrounds.json — 200 — 1.3 KiB — 506 ms — h2https://www.utah.gov/js/data/services.jsonwww.utah.gov/js/data/services.json https://www.utah.gov/js/data/services.json — 200 — 2.5 KiB — 474 ms — h2https://www.utah.gov/js/data/search.jsonwww.utah.gov/js/data/search.json https://www.utah.gov/js/data/search.json — 200 — 1.3 KiB — 475 ms — h2https://znbpzg8vfyvvbekxw-utconcierge.siteintercept.qualtrics.com/SIE/?Q_ZID=ZN_bPzG8VFyVvBeKxwznbpzg8vfyvvbekxw-utconcierge.sitei... https://znbpzg8vfyvvbekxw-utconcierge.siteintercept.qualtrics.com/SIE/?Q_ZID=ZN_bPzG8VFyVvBeKxw — 200 — 4.6 KiB — 30 ms — h2https://www.utah.gov/img/deviceIcons/favicon-32x32.pngwww.utah.gov/img/deviceIcons/favico... https://www.utah.gov/img/deviceIcons/favicon-32x32.png — 200 — 2.0 KiB — 162 ms — h2https://siteintercept.qualtrics.com/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.govsiteintercept.qualtrics.com/dxjsmod... https://siteintercept.qualtrics.com/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.gov — 200 — 18.6 KiB — 22 ms — h2https://siteintercept.qualtrics.com/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.govsiteintercept.qualtrics.com/dxjsmod... https://siteintercept.qualtrics.com/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.utah.gov — 200 — 35.9 KiB — 21 ms — h2https://siteintercept.qualtrics.com/WRSiteInterceptEngine/Targeting.php?Q_ZoneID=ZN_bPzG8VFyVvBeKxw&Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=websiteintercept.qualtrics.com/WRSiteI... https://siteintercept.qualtrics.com/WRSiteInterceptEngine/Targeting.php?Q_ZoneID=ZN_bPzG8VFyVvBeKxw&Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web — 200 — 7.9 KiB — 131 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 2.3 s LCP 2.4 shttps://utah.gov// https://utah.gov/ — 302 — 124 B — 611 ms — http/1.0https://www.utah.gov/www.utah.gov/ https://www.utah.gov/ — 302 — 306 B — 1.1 s — h2http://www.utah.gov/index.htmlwww.utah.gov/index.html http://www.utah.gov/index.html — 307 — 0 B — 1 ms — http/1.1https://www.utah.gov/index.htmlwww.utah.gov/index.html https://www.utah.gov/index.html — 200 — 15.1 KiB — 164 ms — h2https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/style.5.0.0.1.csscdn.utah.gov/dts-ds-custom-header-p... https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/style.5.0.0.1.css — -1 — 0 B — 481 ms — https://www.utah.gov/css/styles.css?v=20260410www.utah.gov/css/styles.css?v=20260... https://www.utah.gov/css/styles.css?v=20260410 — 200 — 102.2 KiB — 832 ms — h2https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/utah-design-system-header.5.0.0.1.umd.jscdn.utah.gov/dts-ds-custom-header-p... https://cdn.utah.gov/dts-ds-custom-header-plugin/header-dist/v5/beta/utah-design-system-header.5.0.0.1.umd.js — -1 — 0 B — 483 ms — https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-621Q114PFJ — 200 — 157.3 KiB — 75 ms — h2https://www.utah.gov/img/misc/gov-legislative.pngwww.utah.gov/img/misc/gov-legislati... https://www.utah.gov/img/misc/gov-legislative.png — 200 — 4.5 KiB — 502 ms — h2https://www.utah.gov/img/misc/local-community.pngwww.utah.gov/img/misc/local-communi... https://www.utah.gov/img/misc/local-community.png — 200 — 4.7 KiB — 500 ms — h2https://www.utah.gov/img/misc/employment-carreers.pngwww.utah.gov/img/misc/employment-ca... https://www.utah.gov/img/misc/employment-carreers.png — 200 — 11.1 KiB — 476 ms — h2https://www.utah.gov/img/misc/visit-hike.pngwww.utah.gov/img/misc/visit-hike.pn... https://www.utah.gov/img/misc/visit-hike.png — 200 — 4.3 KiB — 171 ms — h2https://www.utah.gov/img/services/dnr-stateparks.pngwww.utah.gov/img/services/dnr-state... https://www.utah.gov/img/services/dnr-stateparks.png — 200 — 11.0 KiB — 174 ms — h2https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700&family=Open+Sans:wght@300;400;600;700&display=swapfonts.googleapis.com/css2?family=Me... https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700&family=Open+Sans:wght@300;400;600;700&display=swap — 200 — 2.5 KiB — 49 ms — h2https://www.utah.gov/js/scripts.min.js?v=20260410www.utah.gov/js/scripts.min.js?v=20... https://www.utah.gov/js/scripts.min.js?v=20260410 — 200 — 91.3 KiB — 508 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-621Q114PFJ&gtm=45je64h1h1v9102131922za200zd9102131922&_p=1776805214819&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1522629664.1776805215&frm=0&pscdl=noapi&rcb=8&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938465~115938469~117266401~117884344&sid=1776805214&sct=1&seg=0&dl=https%3A%2F%2Fwww.utah.gov%2Findex.html&dt=Home%20%7C%20Utah.gov&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=2811region1.google-analytics.com/g/coll... 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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 657ms · 208KB · $9/mo
www.utah.gov
Other
Costly
Execution 305ms
Transfer 15 KB
Monthly Cost $4/mo
siteintercept.qualtrics.com
Other
Optional
Execution 142ms
Transfer 36 KB
Unused 60%
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 133ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 77ms
Transfer 157 KB
Unused 40%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.utah.gov adds 305ms 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

www.utah.gov takes 305ms 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

60% of siteintercept.qualtrics.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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