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Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
7
PASS
7
INFO
3

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

Mobile Desktop
83
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.

989 ms

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

1.66 s

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

176 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.114

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

1.42 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.

2.84 s

Page Load Progression

384 ms
768 ms
1.2 s
1.5 s
1.9 s
2.3 s
2.7 s
3.1 s
Checks
22
7 PASS 7 REVIEW 5 FIX
D
Page Weight Budget
Action
2.4 MB transferred, 56 requests
FIX
2.4 MB transferred, 56 requests
Info::
Page weighs 6.9 MB (2.4 MB transferred)
Warning::
JavaScript is 1.8 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.8 MB
Info::
56 HTTP requests
Info::
Estimated 0.50 g CO2 per page load
2.4 MB / 2.4 MB budget
2.4 MB transferred
56 requests
0.50 g CO2 per page load
JavaScript 1.8 MiB 76%
Images 350.7 KiB 14%
CSS 104.5 KiB 4%
Fonts 51.1 KiB 2%
Other 30.8 KiB 1%
Other 28.6 KiB 1%
HTML 13.7 KiB 1%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

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 (2.4 MiB of 2.4 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
25 scripts, 845 KB unused
FIX
25 scripts, 845 KB unused
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 238 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://resource.digital.voice.va.gov/wdcvoice/2/o...: 216 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 106 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 82 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-YPB3...: 63 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 845 KB
845 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.entry.js536 KB238 KB (44%)✓3rd
https://resource.digital.voice.va.gov/wdcvoice/2/onsite/generic1773344517037.js372 KB216 KB (58%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e6562147 KB106 KB (72%)✓3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/vendor.entry.js198 KB82 KB (42%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-YPB3FD0PQ9&cx=c&gtm=4e6562144 KB63 KB (44%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147 KB62 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WFJWBD149 KB48 KB (33%)✓3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.js70 KB28 KB (41%)✓3rd
https://www.va.gov/generated/vet-center-hours-widget.entry.js1 KB—✓3rd
https://www.va.gov/generated/facility-detail.entry.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

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

F
Page Weight Inventory
Action
56 resources · 2.4 MB · 845 KB savings available
FIX
56 resources · 2.4 MB · 845 KB savings available
Warning::
Page weight 2.4 MB exceeds 1 MB target by 1.4 MB
Got: 2.4 MB Expected: ≤ 1 MB
Info::
~845 KB of savings available
Warning::
55 third-party resources (100% of weight)
Info::
3 resources over 200KB
56 resources · 2.4 MiB · 55 third-party 1.4 MiB over 1MB target
JavaScript 76% · 1.8 MiB
Image 16% · 381.2 KiB
CSS 4% · 104.5 KiB
Font 2% · 51.1 KiB
Other 1% · 28.6 KiB
Document 1% · 14.0 KiB

~844.8 KiB of savings available

Remove unused JavaScript: 844.8 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.

B
Image Optimization
14 images, 0 KB saveable
REVIEW
14 images, 0 KB saveable
Warning::
https://s3-us-gov-west-1.amazonaws.com/content.www... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
14 images 351 KB
0 oversized -0 KB
12 legacy format
1 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

C
JS Execution Cost
Action
1063ms total JS execution
REVIEW
1063ms total JS execution
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 297ms CPU time
Info::
Unattributable: 162ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-WFJ...: 126ms CPU time
Info::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 124ms CPU time
Info::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 103ms CPU time
Warning::
Third-party scripts: 1063ms (100% of total)

Main Thread Breakdown

Script Evaluation 62% Script Parsing & Compilation 15% Other 13% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.entry.js297ms226ms66ms3rd
Unattributable162ms16ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WFJWBD126ms109ms15ms3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.js124ms107ms8ms3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/vendor.entry.js103ms72ms30ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L95ms71ms16ms3rd
https://www.va.gov/90ms5ms3ms3rd
https://www.googletagmanager.com/gtag/js?id=G-YPB3FD0PQ9&cx=c&gtm=4e656267ms56ms10ms3rd
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
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
3 fonts (51 KB)
PASS
3 fonts (51 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

51 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 989 ms LCP 1.7 shttps://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2sourcesanspro-bold-webf... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2 — 20.6 KiB — 157 ms — font-display: swaphttps://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2sourcesanspro-regular-w... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2 — 20.7 KiB — 173 ms — font-display: swaphttps://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2bitter-bold.woff2 https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2 — 9.8 KiB — 186 ms — font-display: swap
sourcesanspro-bold-webf... woff2 swap
Size 21 KB
Load time 157 ms
Start 320 ms
Risk FOUT — text flashes from fallback to web font
sourcesanspro-regular-w... woff2 swap
Size 21 KB
Load time 173 ms
Start 321 ms
Risk FOUT — text flashes from fallback to web font
bitter-bold.woff2 woff2 swap
Size 10 KB
Load time 186 ms
Start 321 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
Network Waterfall
56 requests over 3047ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 989 ms LCP 1.7 shttps://va.gov// https://va.gov/ — 301 — 255 B — 118 ms — http/1.1https://www.va.gov/www.va.gov/ https://www.va.gov/ — 200 — 13.7 KiB — 190 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.cssprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.css — 200 — 3.6 KiB — 158 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.jsprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.js — 200 — 69.7 KiB — 223 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2prod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2 — 200 — 20.6 KiB — 157 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2prod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2 — 200 — 20.7 KiB — 173 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2prod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2 — 200 — 9.8 KiB — 186 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/style.cssprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/style.css — 200 — 91.7 KiB — 215 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/assets/content-build.csss3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/assets/content-build.css — 200 — 6.3 KiB — 184 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.cssprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.css — 200 — 2.9 KiB — 171 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/icon-dot-gov.svgs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/icon-dot-gov.svg — 200 — 951 B — 181 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/icon-https.svgs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/icon-https.svg — 200 — 849 B — 180 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/arrow-right-white.svgs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/arrow-right-white.svg — 200 — 1.0 KiB — 58 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/header-logo.pngs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/header-logo.png — 200 — 15.4 KiB — 60 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/styles/crop_square/public/news_promos/Health-and-benefits-distro-graphics_sq.jpgs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/styles/crop_square/public/news_promos/Health-and-benefits-distro-graphics_sq.jpg — 200 — 27.9 KiB — 92 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/vendor.entry.jsprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/vendor.entry.js — 200 — 198.2 KiB — 114 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.entry.jsprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.entry.js — 200 — 535.6 KiB — 128 ms — http/1.1https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=VAdap.digitalgov.gov/Universal-Federa... https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=VA — 200 — 9.5 KiB — 37 ms — h3https://siteimproveanalytics.com/js/siteanalyze_6319010.jssiteimproveanalytics.com/js/siteana... https://siteimproveanalytics.com/js/siteanalyze_6319010.js — 200 — 14.1 KiB — 37 ms — h3https://resource.digital.voice.va.gov/wdcvoice/2/onsite/embed.jsresource.digital.voice.va.gov/wdcvo... https://resource.digital.voice.va.gov/wdcvoice/2/onsite/embed.js — 200 — 1.6 KiB — 252 ms — http/1.1https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/tiny-usa-flag.pngs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/tiny-usa-flag.png — 200 — 985 B — 62 ms — http/1.1https://www.googletagmanager.com/gtm.js?id=GTM-WFJWBDwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WFJWBD — 200 — 148.5 KiB — 106 ms — h2https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/homepage/veterans-banner-desktop-2.pngs3-us-gov-west-1.amazonaws.com/cont... https://s3-us-gov-west-1.amazonaws.com/content.www.va.gov/img/homepage/veterans-banner-desktop-2.png — 200 — 280.7 KiB — 147 ms — http/1.1https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-b3ff2b.entry.jswww.va.gov/generated/node_modules_d... https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-b3ff2b.entry.js — 200 — 2.1 KiB — 46 ms — http/1.1https://www.va.gov/generated/vendors-node_modules_department-of-veterans-affairs_component-library_node_modules_department-d3396a.entry.jswww.va.gov/generated/vendors-node_m... https://www.va.gov/generated/vendors-node_modules_department-of-veterans-affairs_component-library_node_modules_department-d3396a.entry.js — 200 — 5.8 KiB — 103 ms — http/1.1https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-76071c.entry.jswww.va.gov/generated/node_modules_d... https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-76071c.entry.js — 200 — 5.1 KiB — 133 ms — http/1.1https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-2d1dd3.entry.jswww.va.gov/generated/node_modules_d... https://www.va.gov/generated/node_modules_department-of-veterans-affairs_component-library_node_modules_department-of-vete-2d1dd3.entry.js — 200 — 2.9 KiB — 132 ms — http/1.1https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.jsdap.digitalgov.gov/web-vitals/dist/... https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js — 200 — 4.5 KiB — 9 ms — h3https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4Lwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L — 200 — 147.0 KiB — 66 ms — h2https://eauth.va.gov/keepaliveeauth.va.gov/keepalive https://eauth.va.gov/keepalive — 200 — 2.9 KiB — 366 ms — http/1.1
0 ms 1.0 s 2.0 s 3.0 s FCP 989 ms LCP 1.7 shttps://va.gov// https://va.gov/ — 301 — 255 B — 118 ms — http/1.1https://www.va.gov/www.va.gov/ https://www.va.gov/ — 200 — 13.7 KiB — 190 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.cssprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.css — 200 — 3.6 KiB — 158 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.jsprod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.js — 200 — 69.7 KiB — 223 ms — http/1.1https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2prod-va-gov-assets.s3-us-gov-west-1... https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2 — 200 — 20.6 KiB — 157 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 1063ms · 1257KB · $14/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Costly
Execution 297ms
Transfer 536 KB
Unused 44%
Monthly Cost $4/mo
Unattributable
Other
Optional
Execution 162ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 126ms
Transfer 149 KB
Unused 33%
Monthly Cost $2/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Optional
Execution 124ms
Transfer 70 KB
Unused 41%
Monthly Cost $2/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Optional
Execution 103ms
Transfer 198 KB
Unused 42%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 95ms
Transfer 147 KB
Unused 42%
Monthly Cost $1/mo
www.va.gov
Other
Optional
Execution 90ms
Transfer 14 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 67ms
Transfer 144 KB
Unused 44%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com adds 297ms 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

prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com takes 297ms 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

How third-party costs are calculated

Image Optimization
8 images, 14 KB total, 13 KB wasted
INFO

Image Optimization Audit

Total Images

8

Total Size

14 KB

Oversized

4

Wasted

13 KB

2 missing alt text 6 missing dimensions 4 missing lazy loading
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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