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https://ca.gov

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
2
REVIEW
5
PASS
8
INFO
2

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

Mobile Desktop
78
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.

2.03 s

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

2.94 s

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

521 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.

4.21 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.

6.51 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
8 PASS 5 REVIEW 2 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 (675.3 KiB of 675.4 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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
Image Optimization
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 51 KB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1503ms total JS execution
REVIEW
1503ms total JS execution
Warning::
https://www.googletagmanager.com/gtag/js?id=G-TM1X...: 338ms CPU time
Warning::
Unattributable: 295ms CPU time
Warning::
https://www.ca.gov/: 275ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-69TD...: 268ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-PZG...: 243ms CPU time
Warning::
Third-party scripts: 1503ms (100% of total)

Main Thread Breakdown

Script Evaluation 54% Other 16% Style & Layout 13% Script Parsing & Compilation 12%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtag/js?id=G-TM1XPW93HF&cx=c&gtm=4e64f0338ms270ms65ms3rd
Unattributable295ms102ms0ms3rd
https://www.ca.gov/275ms13ms2ms3rd
https://www.googletagmanager.com/gtag/js?id=G-69TD0KNT0F&cx=c&gtm=4e64f0268ms195ms61ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PZGPNNV243ms192ms48ms3rd
https://www.ca.gov/js/cagov-custom.min.js?vjan26a84ms45ms16ms3rd
C
JS Bundles
Action
6 scripts, 224 KB unused
REVIEW
6 scripts, 224 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-TM1X...: 65 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PZG...: 64 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-69TD...: 62 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ca.gov/js/cagov-custom.min.js?vjan26a: 32 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 224 KB
224 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-TM1XPW93HF&cx=c&gtm=4e64f0153 KB65 KB (43%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PZGPNNV124 KB64 KB (52%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-69TD0KNT0F&cx=c&gtm=4e64f0146 KB62 KB (42%)✓3rd
https://www.ca.gov/js/cagov-custom.min.js?vjan26a42 KB32 KB (77%)✓3rd
https://www.ca.gov/js/custom.min.js?vjan26a4 KB—✓3rd
https://alert.cdt.ca.gov/0 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

B
Page Weight Inventory
25 resources · 675 KB · 224 KB savings available
REVIEW
25 resources · 675 KB · 224 KB savings available
Info::
Within 1MB page-weight target
Got: 675 KB
Info::
~224 KB of savings available
Warning::
24 third-party resources (100% of weight)
25 resources · 675.4 KiB · 24 third-party Within 1MB page-weight target
JavaScript 70% · 470.1 KiB
Font 17% · 112.9 KiB
Image 9% · 59.9 KiB
CSS 4% · 24.6 KiB
Document 1% · 7.3 KiB
Other 0% · 594 B

~223.8 KiB of savings available

Remove unused JavaScript: 223.8 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
675 KB transferred, 25 requests
PASS
675 KB transferred, 25 requests
Info::
Page weighs 1.6 MB (675 KB transferred)
Info::
25 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
675 KB / 2.4 MB budget
675 KB transferred
25 requests
0.14 g CO2 per page load
JavaScript 470.1 KiB 70%
Fonts 112.9 KiB 17%
Images 51.3 KiB 8%
CSS 24.6 KiB 4%
Other 8.7 KiB 1%
HTML 7.2 KiB 1%
Other 594 B 0%
0 2.4 MB 4.9 MB
Under budget
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
2 fonts (113 KB)
PASS
2 fonts (113 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

113 KB total

Render-blocking

0

of 2

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 2.0 s LCP 2.9 shttps://fonts.gstatic.com/s/publicsans/v18/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2ijwRs572Xtc6ZYQws9YVwnN... https://fonts.gstatic.com/s/publicsans/v18/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2 — 26.0 KiB — 13 ms — font-display: swaphttps://www.ca.gov/fonts/CaGov.woff2CaGov.woff2 https://www.ca.gov/fonts/CaGov.woff2 — 86.8 KiB — 526 ms — font-display: swap
ijwRs572Xtc6ZYQws9YVwnN... woff2 swap
Size 26 KB
Load time 13 ms
Start 756 ms
Risk FOUT — text flashes from fallback to web font
CaGov.woff2 woff2 swap
Size 87 KB
Load time 526 ms
Start 756 ms
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

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
Network Waterfall
25 requests over 2721ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.0 s LCP 2.9 shttps://ca.gov// https://ca.gov/ — 301 — 147 B — 19 ms — h2https://www.ca.gov/www.ca.gov/ https://www.ca.gov/ — 200 — 7.2 KiB — 722 ms — h2https://fonts.gstatic.com/s/publicsans/v18/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2fonts.gstatic.com/s/publicsans/v18/... https://fonts.gstatic.com/s/publicsans/v18/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2 — 200 — 26.0 KiB — 13 ms — h3https://www.ca.gov/fonts/CaGov.woff2www.ca.gov/fonts/CaGov.woff2 https://www.ca.gov/fonts/CaGov.woff2 — 200 — 86.8 KiB — 526 ms — h2https://www.ca.gov/css/cagov-custom.min.css?vjan26awww.ca.gov/css/cagov-custom.min.css... https://www.ca.gov/css/cagov-custom.min.css?vjan26a — 200 — 24.6 KiB — 1.1 s — h2https://www.ca.gov/js/custom.min.js?vjan26awww.ca.gov/js/custom.min.js?vjan26a https://www.ca.gov/js/custom.min.js?vjan26a — 200 — 4.2 KiB — 899 ms — h2https://www.ca.gov/images/CAgov-logo.svg?v7F3Awww.ca.gov/images/CAgov-logo.svg?v7... https://www.ca.gov/images/CAgov-logo.svg?v7F3A — 200 — 1.8 KiB — 702 ms — h2https://www.ca.gov/js/cagov-custom.min.js?vjan26awww.ca.gov/js/cagov-custom.min.js?v... https://www.ca.gov/js/cagov-custom.min.js?vjan26a — 200 — 42.0 KiB — 450 ms — h2https://alert.cdt.ca.gov/alert.cdt.ca.gov/ https://alert.cdt.ca.gov/ — 200 — 288 B — 74 ms — h2data:image/svg+xml,<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 498"><po…www.w3.org/2000/svg" viewBox="0 0 1... data:image/svg+xml,<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 498"><po… — 200 — 0 B — 0 ms — datahttps://www.ca.gov/images/highlight-1.webpwww.ca.gov/images/highlight-1.webp https://www.ca.gov/images/highlight-1.webp — 200 — 9.8 KiB — 178 ms — h2https://www.ca.gov/images/highlight-2.webpwww.ca.gov/images/highlight-2.webp https://www.ca.gov/images/highlight-2.webp — 200 — 15.9 KiB — 229 ms — h2https://www.ca.gov/images/highlight-3.webpwww.ca.gov/images/highlight-3.webp https://www.ca.gov/images/highlight-3.webp — 200 — 23.8 KiB — 181 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-PZGPNNVwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-PZGPNNV — 200 — 124.1 KiB — 32 ms — h2https://www.googletagmanager.com/gtag/js?id=G-TM1XPW93HF&cx=c&gtm=4e64f0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-TM1XPW93HF&cx=c&gtm=4e64f0 — 200 — 153.1 KiB — 38 ms — h2https://www.googletagmanager.com/gtag/js?id=G-69TD0KNT0F&cx=c&gtm=4e64f0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-69TD0KNT0F&cx=c&gtm=4e64f0 — 200 — 146.5 KiB — 20 ms — h2https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtm.init&eid=2&h=Ag&tr=1ogtautoevents.1ogt1pdatav2.1ccdgafirst.1setproductsettings.1ccdgaregscope.1ccdemdownload.1ccdconversionmarking.1ccdautoredact.1ccdgalast&ti=2ogtautoevents.2ogt1pdatav2.2ccdgafirst.2setproductsettings.2ccdgaregscope.2ccdemdownload.2ccdconversionmarking.2ccdautoredact.2ccdgalast&z=0www.googletagmanager.com/a?id=G-69T... https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtm.init&eid=2&h=Ag&tr=1ogtautoevents.1ogt1pdatav2.1ccdgafirst.1setproductsettings.1ccdgaregscope.1ccdemdownload.1ccdconversionmarking.1ccdautoredact.1ccdgalast&ti=2ogtautoevents.2ogt1pdatav2.2ccdgafirst.2setproductsettings.2ccdgaregscope.2ccdemdownload.2ccdconversionmarking.2ccdautoredact.2ccdgalast&z=0 — 200 — 11 B — 6 ms — h3https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtag.config&eid=3&u=AAAAAAAI&h=Ag&epr=1G&tr=1gct&ti=2gct&z=0www.googletagmanager.com/a?id=G-69T... https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtag.config&eid=3&u=AAAAAAAI&h=Ag&epr=1G&tr=1gct&ti=2gct&z=0 — 200 — 11 B — 7 ms — h3https://www.google-analytics.com/g/collect?v=2&tid=G-69TD0KNT0F&gtm=45je64f0v886148400z8830688936za20gzb830688936zd830688936&_p=1776361569463&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=166346869.1776361570&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938466~115938468~117266401~118128922&sid=1776361569&sct=1&seg=0&dl=https%3A%2F%2Fwww.ca.gov%2F&dt=California%20State%20Portal%20%7C%20CA.gov&_tu=QA&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=2174www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-69TD0KNT0F&gtm=45je64f0v886148400z8830688936za20gzb830688936zd830688936&_p=1776361569463&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=166346869.1776361570&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938466~115938468~117266401~118128922&sid=1776361569&sct=1&seg=0&dl=https%3A%2F%2Fwww.ca.gov%2F&dt=California%20State%20Portal%20%7C%20CA.gov&_tu=QA&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=2174 — 204 — 546 B — 32 ms — h2https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtm.dom&eid=6&u=AAAAAAAIAAAAACCAAAE&h=Ag&z=0www.googletagmanager.com/a?id=G-69T... https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&es=1&e=gtm.dom&eid=6&u=AAAAAAAIAAAAACCAAAE&h=Ag&z=0 — 200 — 11 B — 5 ms — h3https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&e=gtag.config&eid=3&u=AAAAAAAIAAAAACCAAAE&h=Ag&epr=2G&z=0www.googletagmanager.com/a?id=G-69T... https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&e=gtag.config&eid=3&u=AAAAAAAIAAAAACCAAAE&h=Ag&epr=2G&z=0 — 200 — 11 B — 5 ms — h3https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&e=gtm.init&eid=2&u=AAAAAAAIAAAAACCAAAE&h=Ag&tr=5ogtautoevents.5ogt1pdatav2.5ccdgafirst.5setproductsettings.5ccdgaregscope.5ccdemdownload.5ccdconversionmarking.5ccdautoredact.5ccdgalast&ti=2ogtautoevents.2ogt1pdatav2.2ccdgafirst.2setproductsettings.2ccdgaregscope.2ccdemdownload.2ccdconversionmarking.2ccdautoredact.2ccdgalast&z=0www.googletagmanager.com/a?id=G-69T... https://www.googletagmanager.com/a?id=G-69TD0KNT0F&v=3&t=t&pid=1808631312&gtm=45je64f0v886148400za20gzb830688936zd830688936&cv=3&rv=64f0&tc=10&tag_exp=0~115616985~115938466~115938468~117266401~118128922&e=gtm.init&eid=2&u=AAAAAAAIAAAAACCAAAE&h=Ag&tr=5ogtautoevents.5ogt1pdatav2.5ccdgafirst.5setproductsettings.5ccdgaregscope.5ccdemdownload.5ccdconversionmarking.5ccdautoredact.5ccdgalast&ti=2ogtautoevents.2ogt1pdatav2.2ccdgafirst.2setproductsettings.2ccdgaregscope.2ccdemdownload.2ccdconversionmarking.2ccdautoredact.2ccdgalast&z=0 — 200 — 11 B — 6 ms — h3https://www.google-analytics.com/g/collect?v=2&tid=G-TM1XPW93HF&gtm=45je64f0v889680573z8830688936za20gzb830688936zd830688936&_p=1776361569463&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=166346869.1776361570&frm=0&pscdl=noapi&rcb=4&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938466~115938468~117266400~117384405~118131809&sid=1776361569&sct=1&seg=0&dl=https%3A%2F%2Fwww.ca.gov%2F&dt=California%20State%20Portal%20%7C%20CA.gov&_tu=QA&en=page_view&_fv=1&_ss=1&tfd=2286www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-TM1XPW93HF&gtm=45je64f0v889680573z8830688936za20gzb830688936zd830688936&_p=1776361569463&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=166346869.1776361570&frm=0&pscdl=noapi&rcb=4&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938466~115938468~117266400~117384405~118131809&sid=1776361569&sct=1&seg=0&dl=https%3A%2F%2Fwww.ca.gov%2F&dt=California%20State%20Portal%20%7C%20CA.gov&_tu=QA&en=page_view&_fv=1&_ss=1&tfd=2286 — 204 — 48 B — 27 ms — h2https://www.ca.gov/favicon.icowww.ca.gov/favicon.ico https://www.ca.gov/favicon.ico — 200 — 4.5 KiB — 225 ms — h2https://www.ca.gov/images/apple-touch-icon-57x57.pngwww.ca.gov/images/apple-touch-icon-... https://www.ca.gov/images/apple-touch-icon-57x57.png — 200 — 4.1 KiB — 178 ms — h2
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 1503ms · 473KB · $20/mo
Google Tag Manager
Tag Manager
Costly
Execution 338ms
Transfer 153 KB
Unused 43%
Monthly Cost $4/mo
Unattributable
Other
Costly
Execution 295ms
Transfer 0 KB
Monthly Cost $4/mo
www.ca.gov
Other
Costly
Execution 275ms
Transfer 7 KB
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 268ms
Transfer 146 KB
Unused 42%
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 243ms
Transfer 124 KB
Unused 52%
Monthly Cost $3/mo
www.ca.gov
Other
Optional
Execution 84ms
Transfer 42 KB
Unused 77%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 338ms and costs ~$4/month
  • Unattributable adds 295ms and costs ~$4/month
  • www.ca.gov adds 275ms and costs ~$4/month
  • Google Tag Manager adds 268ms and costs ~$4/month
  • Google Tag Manager adds 243ms 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

Google Tag Manager takes 338ms 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 295ms 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.ca.gov takes 275ms 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 268ms 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 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

52% of Google Tag Manager'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

77% of www.ca.gov'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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