Skip to content
https://genome.gov

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
71
GRADE
C
FIX
5
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
72
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.

1.11 s

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

4.97 s

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

24 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.

1.81 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.02 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
15
5 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
5.9 MB transferred, 45 requests
FIX
5.9 MB transferred, 45 requests
Critical::
Page weighs 9.1 MB (5.9 MB transferred)
Warning::
Images are 4.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.4 MB
Warning::
JavaScript is 1.3 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.3 MB
Info::
45 HTTP requests
Info::
Estimated 1.2 g CO2 per page load
5.9 MB / 2.4 MB budget
5.9 MB transferred
45 requests
1.2 g CO2 per page load
Images 4.4 MiB 76%
JavaScript 1.3 MiB 21%
CSS 86.9 KiB 1%
Fonts 42.0 KiB 1%
HTML 40.3 KiB 1%
Other 7.7 KiB 0%
Other 956 B 0%
Other 558 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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 (5.9 MiB of 5.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
11 scripts, 487 KB unused
FIX
11 scripts, 487 KB unused
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://www.genome.gov/sites/default/files/js/js_w...: 86 KB unused (79%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://code.jquery.com/ui/1.12.1/jquery-ui.js: 75 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://code.jquery.com/ui/1.12.1/jquery-ui.js: unminified — 32 KB could be saved
Warning::
https://www.googletagmanager.com/gtag/js?id=G-1GVM...: 62 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 61 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 487 KB
487 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1147 KB106 KB (72%)✓3rd
https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8110 KB86 KB (79%)✓3rd
https://code.jquery.com/ui/1.12.1/jquery-ui.js122 KB75 KB (84%)✗3rd
https://www.googletagmanager.com/gtag/js?id=G-1GVMC3FXSC&cx=c&gtm=4e64h1148 KB62 KB (41%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147 KB61 KB (42%)✓3rd
https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9db124 KB61 KB (50%)✓3rd
https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8455 KB35 KB (8%)✓3rd
https://script.crazyegg.com/pages/scripts/0097/2751.js0 KB—✓3rd
https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=HHS&subagency=NIH9 KB—✓3rd
https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js4 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
45 resources · 5.9 MB · 487 KB savings available
FIX
45 resources · 5.9 MB · 487 KB savings available
Warning::
Page weight 4.9 MB over 1MB target
Got: 5.9 MB Expected: ≤ 1 MB
Info::
~487 KB of savings available
Warning::
44 third-party resources (100% of weight)
Info::
2 resources over 200KB
45 resources · 5.9 MiB · 44 third-party 4.9 MiB over 1MB target
Image 76% · 4.5 MiB
JavaScript 21% · 1.3 MiB
CSS 1% · 86.9 KiB
Font 1% · 42.0 KiB
Document 1% · 40.3 KiB
Other 0% · 1.6 KiB

~486.8 KiB of savings available

Remove unused JavaScript: 486.8 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
23 images, 0 KB saveable
REVIEW
23 images, 0 KB saveable
Warning::
https://www.genome.gov/themes/custom/nhgri/assets/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
23 images 4.4 MB
0 oversized -0 KB
3 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
1336ms total JS execution
REVIEW
1336ms total JS execution
Warning::
https://www.genome.gov/: 480ms CPU time
Warning::
Unattributable: 421ms CPU time
Info::
https://www.genome.gov/sites/default/files/js/js_x...: 159ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 77ms CPU time
Info::
https://www.genome.gov/sites/default/files/google_...: 77ms CPU time
Warning::
Third-party scripts: 1336ms (100% of total)

Main Thread Breakdown

Other 52% Script Evaluation 25% Style & Layout 11% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
https://www.genome.gov/480ms1ms0ms3rd
Unattributable421ms2ms0ms3rd
https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8159ms83ms45ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L77ms64ms12ms3rd
https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9db77ms56ms16ms3rd
https://www.googletagmanager.com/gtag/js?id=G-1GVMC3FXSC&cx=c&gtm=4e64h167ms55ms11ms3rd
https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl855ms33ms18ms3rd
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 4.0 s 5.0 s FCP 1.1 s LCP 5.0 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 — 7 ms — font-display: swap
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 7 ms
Start 421 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
Network Waterfall
45 requests over 1642ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 1.1 s LCP 5.0 shttps://genome.gov// https://genome.gov/ — 301 — 172 B — 62 ms — http/1.0https://www.genome.gov/www.genome.gov/ https://www.genome.gov/ — 200 — 40.3 KiB — 106 ms — h2https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9dbwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9db — 200 — 123.5 KiB — 49 ms — h2https://www.genome.gov/sites/default/files/css/css_7bNgxpTyyDOGVcNhI8rWh6jpOc1eJhVRYW5xpsCoGb0.css?delta=0&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_7bNgxpTyyDOGVcNhI8rWh6jpOc1eJhVRYW5xpsCoGb0.css?delta=0&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 1.9 KiB — 13 ms — h2https://www.genome.gov/sites/default/files/css/css_S9fxr0VKT9XswDa4m5Lk9YATdxRc8X_jIkStpGRT9KQ.css?delta=1&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_S9fxr0VKT9XswDa4m5Lk9YATdxRc8X_jIkStpGRT9KQ.css?delta=1&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 81.7 KiB — 32 ms — h2https://www.genome.gov/sites/default/files/css/css_Bja-lTOnFQWXVat4QvC77PLgdp_NcCLsyu8dFIw6hzM.css?delta=2&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_Bja-lTOnFQWXVat4QvC77PLgdp_NcCLsyu8dFIw6hzM.css?delta=2&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 991 B — 18 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/global/logo-light-nhgri.webpwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/global/logo-light-nhgri.webp — 200 — 14.5 KiB — 20 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/global/NHGRI_grey_teal.svgwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/global/NHGRI_grey_teal.svg — 200 — 25.6 KiB — 28 ms — h2https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8 — 200 — 454.6 KiB — 79 ms — h2https://code.jquery.com/ui/1.12.1/jquery-ui.jscode.jquery.com/ui/1.12.1/jquery-ui... https://code.jquery.com/ui/1.12.1/jquery-ui.js — 200 — 121.9 KiB — 63 ms — h2https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8 — 200 — 109.6 KiB — 75 ms — h2https://script.crazyegg.com/pages/scripts/0097/2751.jsscript.crazyegg.com/pages/scripts/0... https://script.crazyegg.com/pages/scripts/0097/2751.js — 200 — 230 B — 30 ms — h3https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=HHS&subagency=NIHdap.digitalgov.gov/Universal-Federa... https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=HHS&subagency=NIH — 200 — 9.4 KiB — 46 ms — h3https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700;800&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700;800&display=swap — 200 — 2.4 KiB — 53 ms — h2https://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 — 12 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 — 147.3 KiB — 95 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/images/trans.pngwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/images/trans.png — 200 — 3.0 MiB — 221 ms — h2https://www.genome.gov/sites/default/files/media/images/2025-02/Homepage-candida_copy.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2025-02/Homepage-candida_copy.webp — 200 — 72.7 KiB — 29 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/images/bg.pngwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/images/bg.png — 200 — 5.1 KiB — 25 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/StrategicVisionFigure1-01.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/StrategicVisionFigure1-01.webp — 200 — 85.5 KiB — 75 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/For_Scientists.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/For_Scientists.webp — 200 — 96.1 KiB — 119 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/scd-dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/scd-dyn.webp — 200 — 11.7 KiB — 112 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/grant_seekers.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/grant_seekers.webp — 200 — 58.7 KiB — 116 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/SBIR_thumb.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/SBIR_thumb.webp — 200 — 70.6 KiB — 119 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/For_Health_Professional.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/For_Health_Professional.webp — 200 — 82.4 KiB — 120 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/HPEW%20dyn%20%280-00-05-17%29.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/HPEW%20dyn%20%280-00-05-17%29.webp — 200 — 13.8 KiB — 118 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/Education.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/Education.webp — 200 — 173.9 KiB — 123 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/ulc_dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/ulc_dyn.webp — 200 — 15.1 KiB — 123 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/homepage_generalpublic1.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/homepage_generalpublic1.webp — 200 — 97.0 KiB — 132 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/hgp_specialty_folded_dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/hgp_specialty_folded_dyn.webp — 200 — 105.2 KiB — 133 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 1.1 s LCP 5.0 shttps://genome.gov// https://genome.gov/ — 301 — 172 B — 62 ms — http/1.0https://www.genome.gov/www.genome.gov/ https://www.genome.gov/ — 200 — 40.3 KiB — 106 ms — h2https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9dbwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/google_analytics/gtag.js?tdw9db — 200 — 123.5 KiB — 49 ms — h2https://www.genome.gov/sites/default/files/css/css_7bNgxpTyyDOGVcNhI8rWh6jpOc1eJhVRYW5xpsCoGb0.css?delta=0&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_7bNgxpTyyDOGVcNhI8rWh6jpOc1eJhVRYW5xpsCoGb0.css?delta=0&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 1.9 KiB — 13 ms — h2https://www.genome.gov/sites/default/files/css/css_S9fxr0VKT9XswDa4m5Lk9YATdxRc8X_jIkStpGRT9KQ.css?delta=1&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_S9fxr0VKT9XswDa4m5Lk9YATdxRc8X_jIkStpGRT9KQ.css?delta=1&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 81.7 KiB — 32 ms — h2https://www.genome.gov/sites/default/files/css/css_Bja-lTOnFQWXVat4QvC77PLgdp_NcCLsyu8dFIw6hzM.css?delta=2&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/css/css_Bja-lTOnFQWXVat4QvC77PLgdp_NcCLsyu8dFIw6hzM.css?delta=2&language=en&theme=nhgri&include=eJyFkFFywzAIRC9kW0fS4AhJdJDQgJQ0PX3t1Gk-4k4_2X3LLIAZdk_1Ay9d1F3MlkAx-ivhbYJ3M7GswL6AJqpnQJaCDRL6SJ--Y2n_QWhnhGITo05SvWVQ9OvoXeop29O-59TJpOGI_s0o_q5_tI6i_tlwotJUrhh8GdzJG_IWdVRsqjkpuSi1ww1t45_KYJ737GxMAfWQfz53DBWqJGBGvR_K19B1jjJqgP3qqYFCUmjZXNDRgJeXsozaxspkGcNkd9ve7FYw_AY3VbZ9 — 200 — 991 B — 18 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/global/logo-light-nhgri.webpwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/global/logo-light-nhgri.webp — 200 — 14.5 KiB — 20 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/global/NHGRI_grey_teal.svgwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/global/NHGRI_grey_teal.svg — 200 — 25.6 KiB — 28 ms — h2https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/js/js_xi0FtGdjW2Z6VR7E4ps29cMkIygxI-vuQpt3k_8ypz4.js?scope=footer&delta=0&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8 — 200 — 454.6 KiB — 79 ms — h2https://code.jquery.com/ui/1.12.1/jquery-ui.jscode.jquery.com/ui/1.12.1/jquery-ui... https://code.jquery.com/ui/1.12.1/jquery-ui.js — 200 — 121.9 KiB — 63 ms — h2https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8www.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/js/js_wY7SbSc8raFRw1fRnmuVtinauFDQqI3EBpM2ZlZ-Jrw.js?scope=footer&delta=2&language=en&theme=nhgri&include=eJxljkEOgzAMBD8UmidZBkwwcmwUJ1B4fZEKl_a2O1qtBt2pAutCQ7USF3-tzWcYTCtphZ5EbAeeoEelEvBvXimvMPEbFLcwFDwPSik-ISSzJASoKEflweMvCJzXYhuNkJtUBie5viNnDzqnwnG6VHAnt0wPaSLdiok6Fx4vqy9OYj3KXRTVEopQOW5yttJ3kzUdsbLpB2MdYl8 — 200 — 109.6 KiB — 75 ms — h2https://script.crazyegg.com/pages/scripts/0097/2751.jsscript.crazyegg.com/pages/scripts/0... https://script.crazyegg.com/pages/scripts/0097/2751.js — 200 — 230 B — 30 ms — h3https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=HHS&subagency=NIHdap.digitalgov.gov/Universal-Federa... https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=HHS&subagency=NIH — 200 — 9.4 KiB — 46 ms — h3https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700;800&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700;800&display=swap — 200 — 2.4 KiB — 53 ms — h2https://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 — 12 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 — 147.3 KiB — 95 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/images/trans.pngwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/images/trans.png — 200 — 3.0 MiB — 221 ms — h2https://www.genome.gov/sites/default/files/media/images/2025-02/Homepage-candida_copy.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2025-02/Homepage-candida_copy.webp — 200 — 72.7 KiB — 29 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/images/bg.pngwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/images/bg.png — 200 — 5.1 KiB — 25 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/StrategicVisionFigure1-01.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/StrategicVisionFigure1-01.webp — 200 — 85.5 KiB — 75 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/For_Scientists.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/For_Scientists.webp — 200 — 96.1 KiB — 119 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/scd-dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/scd-dyn.webp — 200 — 11.7 KiB — 112 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/grant_seekers.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/grant_seekers.webp — 200 — 58.7 KiB — 116 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/SBIR_thumb.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/SBIR_thumb.webp — 200 — 70.6 KiB — 119 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/For_Health_Professional.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/For_Health_Professional.webp — 200 — 82.4 KiB — 120 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/HPEW%20dyn%20%280-00-05-17%29.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/HPEW%20dyn%20%280-00-05-17%29.webp — 200 — 13.8 KiB — 118 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-10/Education.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-10/Education.webp — 200 — 173.9 KiB — 123 ms — h2https://www.genome.gov/sites/default/files/media/images/2024-09/ulc_dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2024-09/ulc_dyn.webp — 200 — 15.1 KiB — 123 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/homepage_generalpublic1.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/homepage_generalpublic1.webp — 200 — 97.0 KiB — 132 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/hgp_specialty_folded_dyn.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/hgp_specialty_folded_dyn.webp — 200 — 105.2 KiB — 133 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/gray.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/gray.webp — 200 — 184.0 KiB — 140 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/educators_hero_new8.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/educators_hero_new8.webp — 200 — 123.4 KiB — 144 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/health-professionals3-NOpatterns1.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/health-professionals3-NOpatterns1.webp — 200 — 106.6 KiB — 148 ms — h2https://www.genome.gov/sites/default/files/media/images/2023-08/Grant-Seekers_hero14.webpwww.genome.gov/sites/default/files/... https://www.genome.gov/sites/default/files/media/images/2023-08/Grant-Seekers_hero14.webp — 200 — 125.1 KiB — 155 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 — 7 ms — h3https://www.googletagmanager.com/gtag/js?id=G-1GVMC3FXSC&cx=c&gtm=4e64h1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-1GVMC3FXSC&cx=c&gtm=4e64h1 — 200 — 148.4 KiB — 58 ms — h2https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.9 KiB — 41 ms — h2https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1 — 200 — 147.0 KiB — 52 ms — h2https://www.genome.gov/themes/custom/nhgri/assets/global/logo-dark-nhgri.webpwww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/assets/global/logo-dark-nhgri.webp — 200 — 14.8 KiB — 13 ms — h2data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0…data:image/gif;base64,iVBORw0KGgoAA... data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFAAAABQCAYAAACOEfKtAAAGvklEQVR4AeybgXIbOQxD/fr//3xnL…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFAAAABQCAYAAACOEfKtAAAGvklEQVR4AeybgXIbOQxD/fr//3xnL… — 200 — 0 B — 0 ms — datahttps://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200&_p=1776892088570&gcd=13l3l3l3l1l1&npa=0&dma=0&gdid=dMDhkMT&are=1&cid=48412804.1776892090&frm=0&pscdl=noapi&rcb=13&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=0~115616986~115938465~115938469~117266400~117512543&dl=https%3A%2F%2Fgenome.gov%2F&dt=National%20Human%20Genome%20Research%20Institute%20Home%20%7C%20NHGRI&dr=&sid=1776892089&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=HHS&ep.subagency=NIH&ep.site_topic=unspecified%3Agenome.gov&ep.site_platform=unspecified%3Agenome.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=genome.gov&tfd=1446www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200&_p=1776892088570&gcd=13l3l3l3l1l1&npa=0&dma=0&gdid=dMDhkMT&are=1&cid=48412804.1776892090&frm=0&pscdl=noapi&rcb=13&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=0~115616986~115938465~115938469~117266400~117512543&dl=https%3A%2F%2Fgenome.gov%2F&dt=National%20Human%20Genome%20Research%20Institute%20Home%20%7C%20NHGRI&dr=&sid=1776892089&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=HHS&ep.subagency=NIH&ep.site_topic=unspecified%3Agenome.gov&ep.site_platform=unspecified%3Agenome.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=genome.gov&tfd=1446 — 204 — 407 B — 56 ms — h2https://analytics.google.com/g/collect?v=2&tid=G-1GVMC3FXSC&gtm=45je64k0v9126754795za20g&_p=1776892088570&_gaz=1&gcd=13l3l3l3l3l1&npa=1&dma=0&gdid=dMDhkMT&_eu=AAAIAGA&are=1&cid=48412804.1776892090&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&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117512543~118463261&sid=1776892089&sct=1&seg=0&dl=https%3A%2F%2Fwww.genome.gov%2F&dt=National%20Human%20Genome%20Research%20Institute%20Home%20%7C%20NHGRI&en=page_view&_fv=1&_ss=1&ep.anonymize_ip=true&ep.page_placeholder=PLACEHOLDER_page_path&tfd=1601analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-1GVMC3FXSC&gtm=45je64k0v9126754795za20g&_p=1776892088570&_gaz=1&gcd=13l3l3l3l3l1&npa=1&dma=0&gdid=dMDhkMT&_eu=AAAIAGA&are=1&cid=48412804.1776892090&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&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117512543~118463261&sid=1776892089&sct=1&seg=0&dl=https%3A%2F%2Fwww.genome.gov%2F&dt=National%20Human%20Genome%20Research%20Institute%20Home%20%7C%20NHGRI&en=page_view&_fv=1&_ss=1&ep.anonymize_ip=true&ep.page_placeholder=PLACEHOLDER_page_path&tfd=1601 — 204 — 549 B — 42 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-1GVMC3FXSC&cid=48412804.1776892090&gtm=45je64k0v9126754795za20g&rcb=8&aip=1&dma=0&gcd=13l3l3l3l3l1&npa=1&frm=0&tag_exp=0~115938465~115938469~117266400~117512543~118463261stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-1GVMC3FXSC&cid=48412804.1776892090&gtm=45je64k0v9126754795za20g&rcb=8&aip=1&dma=0&gcd=13l3l3l3l3l1&npa=1&frm=0&tag_exp=0~115938465~115938469~117266400~117512543~118463261 — 204 — 558 B — 36 ms — h2https://www.genome.gov/themes/custom/nhgri/favicon.icowww.genome.gov/themes/custom/nhgri/... https://www.genome.gov/themes/custom/nhgri/favicon.ico — 200 — 7.5 KiB — 9 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 1336ms · 1024KB · $18/mo
www.genome.gov
Other
Costly
Execution 480ms
Transfer 40 KB
Monthly Cost $6/mo
Unattributable
Other
Costly
Execution 421ms
Transfer 0 KB
Monthly Cost $6/mo
www.genome.gov
Other
Optional
Execution 159ms
Transfer 455 KB
Unused 8%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 77ms
Transfer 147 KB
Unused 42%
Monthly Cost $1/mo
www.genome.gov
Other
Optional
Execution 77ms
Transfer 124 KB
Unused 50%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 67ms
Transfer 148 KB
Unused 41%
Monthly Cost $1/mo
www.genome.gov
Other
Optional
Execution 55ms
Transfer 110 KB
Unused 79%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.genome.gov adds 480ms and costs ~$6/month
  • Unattributable adds 421ms and costs ~$6/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.genome.gov takes 480ms 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 421ms 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

79% of www.genome.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.

Send Feedback