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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
6
REVIEW
7
PASS
10
INFO
3

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

Mobile Desktop
46
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.

3.48 s

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

4.61 s

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

1.99 s

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

0.061

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

4.66 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.

16.57 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
26
10 PASS 7 REVIEW 6 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 54 requests
FIX
2.1 MB transferred, 54 requests
Info::
Page weighs 6.6 MB (2.1 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::
54 HTTP requests
Info::
Estimated 0.44 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
54 requests
0.44 g CO2 per page load
JavaScript 1.8 MiB 86%
CSS 104.5 KiB 5%
Images 70.3 KiB 3%
Fonts 51.0 KiB 2%
Other 31.5 KiB 1%
Other 30.7 KiB 1%
HTML 13.8 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 (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4373ms total JS execution
FIX
4373ms total JS execution
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 1261ms CPU time
Warning::
Unattributable: 577ms CPU time
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 462ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WFJ...: 406ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-YPB3...: 360ms CPU time
Warning::
Third-party scripts: 4373ms (100% of total)

Main Thread Breakdown

Script Evaluation 64% Script Parsing & Compilation 15% Other 13% Style & Layout 4%
ScriptTotalScriptingParse/CompileParty
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/static-pages.entry.js1261ms958ms251ms3rd
Unattributable577ms42ms0ms3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/vendor.entry.js462ms341ms119ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WFJWBD406ms349ms54ms3rd
https://www.googletagmanager.com/gtag/js?id=G-YPB3FD0PQ9&cx=c&gtm=4e6562360ms316ms42ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L348ms268ms40ms3rd
https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/web-components.entry.js342ms255ms59ms3rd
https://www.va.gov/239ms16ms13ms3rd
https://resource.digital.voice.va.gov/wdcvoice/2/onsite/generic1773344517037.js112ms72ms40ms3rd
https://siteimproveanalytics.com/js/siteanalyze_6319010.js69ms64ms5ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
25 scripts, 842 KB unused
FIX
25 scripts, 842 KB unused
Warning::
https://prod-va-gov-assets.s3-us-gov-west-1.amazon...: 236 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: 842 KB
842 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 KB236 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
54 resources · 2.1 MB · 842 KB savings available
FIX
54 resources · 2.1 MB · 842 KB savings available
Warning::
Page weight 2.1 MB exceeds 1 MB target by 1.1 MB
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~842 KB of savings available
Warning::
53 third-party resources (100% of weight)
Info::
2 resources over 200KB
54 resources · 2.1 MiB · 53 third-party 1.1 MiB over 1MB target
JavaScript 86% · 1.8 MiB
CSS 5% · 104.5 KiB
Image 5% · 100.8 KiB
Font 2% · 51.0 KiB
Other 1% · 31.5 KiB
Document 1% · 14.0 KiB

~842.5 KiB of savings available

Remove unused JavaScript: 842.5 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
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://www.va.gov/img/tiny-usa-flag.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 70 KB
0 oversized -0 KB
11 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

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.
B
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
2 JS blocking issue(s) detected
Warning::
3 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
Total JS execution time is 4.4 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
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 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.5 s LCP 4.6 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 — 20.5 KiB — 162 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 — 175 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 — 199 ms — font-display: swap
sourcesanspro-bold-webf... woff2 swap
Size 21 KB
Load time 162 ms
Start 672 ms
Risk FOUT — text flashes from fallback to web font
sourcesanspro-regular-w... woff2 swap
Size 21 KB
Load time 175 ms
Start 672 ms
Risk FOUT — text flashes from fallback to web font
bitter-bold.woff2 woff2 swap
Size 10 KB
Load time 199 ms
Start 673 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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Warning::
3 font preload(s) missing `crossorigin` -- font will be downloaded twice
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2, https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2, https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
2
preload
3
dns-prefetch
—
prefetch
—

5 resource hints configured

Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-bold-webfont.woff2, https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/sourcesanspro-regular-webfont.woff2, https://prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com/generated/bitter-bold.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.
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
CSS Performance Depth
1 CSS depth issue(s) detected
PASS
1 CSS depth issue(s) detected
Warning::
4 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall
54 requests over 2299ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.5 s LCP 4.6 shttps://va.gov// https://va.gov/ — 301 — 255 B — 483 ms — http/1.1https://www.va.gov/www.va.gov/ https://www.va.gov/ — 200 — 13.8 KiB — 168 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 — 69.6 KiB — 240 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 — 20.5 KiB — 162 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 — 175 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 — 199 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 — 266 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 — 128 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 — 192 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 — 163 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 — 172 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 — 66 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 — 106 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 — 97 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 — 159 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 — 29 ms — h3https://siteimproveanalytics.com/js/siteanalyze_6319010.jssiteimproveanalytics.com/js/siteana... https://siteimproveanalytics.com/js/siteanalyze_6319010.js — 200 — 14.1 KiB — 29 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 — 211 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 — 68 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 — 94 ms — h2https://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 — 49 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 — 5.9 KiB — 105 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 — 127 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 — 129 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 — 11 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 4373ms · 1885KB · $58/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Costly
Execution 1261ms
Transfer 536 KB
Unused 44%
Monthly Cost $17/mo
Unattributable
Other
Costly
Execution 577ms
Transfer 0 KB
Monthly Cost $8/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Costly
Execution 462ms
Transfer 198 KB
Unused 42%
Monthly Cost $6/mo
Google Tag Manager
Tag Manager
Costly
Execution 406ms
Transfer 149 KB
Unused 33%
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 360ms
Transfer 144 KB
Unused 44%
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 348ms
Transfer 147 KB
Unused 42%
Monthly Cost $5/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Costly
Execution 342ms
Transfer 70 KB
Unused 41%
Monthly Cost $5/mo
www.va.gov
Other
Costly
Execution 239ms
Transfer 14 KB
Monthly Cost $3/mo
resource.digital.voice.va.gov
Other
Optional
Execution 112ms
Transfer 372 KB
Unused 58%
Monthly Cost $1/mo
siteimproveanalytics.com
Other
Optional
Execution 69ms
Transfer 14 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 68ms
Transfer 147 KB
Unused 72%
Monthly Cost $1/mo
dap.digitalgov.gov
Other
Optional
Execution 67ms
Transfer 5 KB
Monthly Cost $1/mo
prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com
Other
Optional
Execution 62ms
Transfer 92 KB
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 1261ms and costs ~$17/month
  • Unattributable adds 577ms and costs ~$8/month
  • prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com adds 462ms and costs ~$6/month
  • Google Tag Manager adds 406ms and costs ~$5/month
  • Google Tag Manager adds 360ms and costs ~$5/month
  • Google Tag Manager adds 348ms and costs ~$5/month
  • prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com adds 342ms and costs ~$5/month
  • www.va.gov adds 239ms 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

prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com takes 1261ms 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 577ms 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

prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com takes 462ms 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 406ms 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 360ms 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 348ms 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

prod-va-gov-assets.s3-us-gov-west-1.amazonaws.com takes 342ms 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.va.gov takes 239ms 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

58% of resource.digital.voice.va.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

72% 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

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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