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https://metamask.io

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
1
PASS
9
INFO
2

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

Mobile Desktop
28
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
92
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.

4.77 s

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

12.77 s

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

3.93 s

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.

8.27 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.

21.20 s

Page Load Progression

694 ms
1.4 s
2.1 s
2.8 s
3.5 s
4.2 s
4.9 s
5.6 s
Checks
17
9 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
3.8 MB transferred, 88 requests
FIX
3.8 MB transferred, 88 requests
Warning::
Page weighs 10.0 MB (3.8 MB transferred)
Warning::
JavaScript is 1.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.5 MB
Info::
88 HTTP requests
Info::
Estimated 0.79 g CO2 per page load
3.8 MB / 2.4 MB budget
3.8 MB transferred
88 requests
0.79 g CO2 per page load
Other 1.7 MiB 45%
JavaScript 1.5 MiB 39%
Images 223.4 KiB 6%
Fonts 183.8 KiB 5%
CSS 155.7 KiB 4%
HTML 66.7 KiB 2%
Other 5.1 KiB 0%
Other 2.4 KiB 0%
Other 849 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

F
JS Execution Cost
Action
17623ms total JS execution
FIX
17623ms total JS execution
Warning::
https://metamask.io/_next/static/chunks/88abe5af.0...: 7634ms CPU time
Warning::
https://metamask.io/_next/static/chunks/4816-055dd...: 3538ms CPU time
Warning::
https://metamask.io/_next/static/chunks/584bde89-9...: 2631ms CPU time
Warning::
https://metamask.io/: 842ms CPU time
Warning::
Unattributable: 634ms CPU time
Info::
Third-party scripts: 1414ms (8% of total)

Main Thread Breakdown

Script Evaluation 68% Other 12% Style & Layout 11% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://metamask.io/_next/static/chunks/88abe5af.0706f908dc317b11.js7634ms7603ms23ms1st
https://metamask.io/_next/static/chunks/4816-055dd6d610c3074c.js3538ms2039ms20ms1st
https://metamask.io/_next/static/chunks/584bde89-9595039859cc31b6.js2631ms490ms5ms1st
https://metamask.io/842ms174ms39ms1st
Unattributable634ms33ms0ms3rd
https://cmp.osano.com/AzZMxHTbQDOQD8c1J/c7397bc9-ede0-4a67-8e99-ac20272a6829/osano.js557ms486ms14ms3rd
https://metamask.io/_next/static/chunks/2681-1be89bb801254265.js414ms358ms55ms1st
https://metamask.io/_next/static/chunks/51034008-5950fed2277c9bf1.js350ms99ms19ms1st
https://metamask.io/_next/static/chunks/app/%5Blocale%5D/layout-7ad57ee0be342da8.js338ms329ms0ms1st
https://js.hsforms.net/forms/v2.js224ms173ms47ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
36 scripts, 568 KB unused
FIX
36 scripts, 568 KB unused
Warning::
https://metamask.io/_next/static/chunks/5188-f971d...: 165 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://metamask.io/_next/static/chunks/2681-1be89...: 109 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://metamask.io/_next/static/chunks/e8867c6f-d...: 77 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://js.hsforms.net/forms/v2.js: 73 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://metamask.io/_next/static/chunks/2304-4b2bf...: 44 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 568 KB
568 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://metamask.io/_next/static/chunks/5188-f971dfee31d6ef93.js184 KB165 KB (90%)✓1st
https://metamask.io/_next/static/chunks/2681-1be89bb801254265.js156 KB109 KB (70%)✓1st
https://metamask.io/_next/static/chunks/e8867c6f-d571532695aaa15c.js100 KB77 KB (78%)✓1st
https://js.hsforms.net/forms/v2.js194 KB73 KB (39%)✓3rd
https://metamask.io/_next/static/chunks/2304-4b2bfe342f27e873.js66 KB44 KB (67%)✓1st
https://metamask.io/_next/static/chunks/88abe5af.0706f908dc317b11.js39 KB36 KB (95%)✓1st
https://metamask.io/_next/static/chunks/7566a6ad-12c7ae0b19c8d08b.js86 KB36 KB (42%)✓1st
https://metamask.io/_next/static/chunks/4816-055dd6d610c3074c.js59 KB27 KB (46%)✓1st
https://metamask.io/_next/static/chunks/8975-9a2bd08b36ca935d.js18 KB—✓1st
https://metamask.io/_next/static/chunks/app/%5Blocale%5D/%5B...slug%5D/page-4af89b98cf4033de.js5 KB—✓1st

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

D
Page Weight Inventory
Action
88 resources · 3.8 MB · 568 KB savings available
FIX
88 resources · 3.8 MB · 568 KB savings available
Warning::
Page weight 2.8 MB over 1MB target
Got: 3.8 MB Expected: ≤ 1 MB
Info::
~568 KB of savings available
Info::
26 third-party resources (32% of weight)
Info::
2 resources over 200KB
88 resources · 3.8 MiB · 26 third-party 2.8 MiB over 1MB target
Other 45% · 1.7 MiB
JavaScript 39% · 1.5 MiB
Image 6% · 225.9 KiB
Font 5% · 183.8 KiB
CSS 4% · 155.7 KiB
Document 2% · 66.7 KiB

~567.7 KiB of savings available

Remove unused JavaScript: 567.7 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
B
Image Optimization
14 images, 0 KB saveable
REVIEW
14 images, 0 KB saveable
Info::
All images are well-optimized
14 images 223 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
A
Third-Party Impact
32% third-party, 0 ms blocking
PASS
32% third-party, 0 ms blocking
Info::
Third-party code accounts for 32% of page weight (1.2 MiB of 3.8 MiB)
Info::
Third-party blocking time is low (0 ms)
68%
32%
First-party Third-party
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
5 fonts (184 KB)
PASS
5 fonts (184 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

184 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.8 s LCP 12.8 shttps://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff231ed70c509aa5870-s.p.woff2 https://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff2 — 34.7 KiB — 27 ms — font-display: swaphttps://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff27a00e16d33add871-s.p.woff2 https://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff2 — 34.9 KiB — 77 ms — font-display: swaphttps://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2a757f97c389def12-s.p.woff2 https://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2 — 18.7 KiB — 77 ms — font-display: swaphttps://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2cbb70915db1e6525-s.p.woff2 https://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2 — 53.6 KiB — 97 ms — font-display: swaphttps://metamask.io/_next/static/media/ea533aa8097cccf0-s.p.woff2ea533aa8097cccf0-s.p.woff2 https://metamask.io/_next/static/media/ea533aa8097cccf0-s.p.woff2 — 41.9 KiB — 111 ms — font-display: swap
31ed70c509aa5870-s.p.woff2 woff2 swap
Size 35 KB
Load time 27 ms
Start 287 ms
Risk FOUT — text flashes from fallback to web font
7a00e16d33add871-s.p.woff2 woff2 swap
Size 35 KB
Load time 77 ms
Start 289 ms
Risk FOUT — text flashes from fallback to web font
a757f97c389def12-s.p.woff2 woff2 swap
Size 19 KB
Load time 77 ms
Start 289 ms
Risk FOUT — text flashes from fallback to web font
cbb70915db1e6525-s.p.woff2 woff2 swap
Size 54 KB
Load time 97 ms
Start 289 ms
Risk FOUT — text flashes from fallback to web font
ea533aa8097cccf0-s.p.woff2 woff2 swap
Size 42 KB
Load time 111 ms
Start 290 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
8 hints, 0 missing preconnects
PASS
8 hints, 0 missing preconnects
Info::
Page uses 8 resource hint(s)

Current Resource Hints

preconnect
—
preload
8
dns-prefetch
—
prefetch
—

8 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
88 requests over 3419ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.8 s LCP 12.8 shttps://metamask.io// https://metamask.io/ — 200 — 66.7 KiB — 294 ms — h2https://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff2/_next/static/media/31ed70c509aa587... https://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff2 — 200 — 34.7 KiB — 27 ms — h2https://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff2/_next/static/media/7a00e16d33add87... https://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff2 — 200 — 34.9 KiB — 77 ms — h2https://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2/_next/static/media/a757f97c389def1... https://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2 — 200 — 18.7 KiB — 77 ms — h2https://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2/_next/static/media/cbb70915db1e652... https://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2 — 200 — 53.6 KiB — 97 ms — h2https://metamask.io/_next/static/media/ea533aa8097cccf0-s.p.woff2/_next/static/media/ea533aa8097cccf... https://metamask.io/_next/static/media/ea533aa8097cccf0-s.p.woff2 — 200 — 41.9 KiB — 111 ms — h2https://metamask.io/_next/static/css/1023c1996f732bfe.css/_next/static/css/1023c1996f732bfe.... https://metamask.io/_next/static/css/1023c1996f732bfe.css — 200 — 13.3 KiB — 41 ms — h2https://metamask.io/_next/static/css/002b311fc8a2a182.css/_next/static/css/002b311fc8a2a182.... https://metamask.io/_next/static/css/002b311fc8a2a182.css — 200 — 713 B — 34 ms — h2https://metamask.io/_next/static/css/dc75f1d0b9da038a.css/_next/static/css/dc75f1d0b9da038a.... https://metamask.io/_next/static/css/dc75f1d0b9da038a.css — 200 — 681 B — 35 ms — h2https://metamask.io/_next/static/css/e1c63b9090117b9e.css/_next/static/css/e1c63b9090117b9e.... https://metamask.io/_next/static/css/e1c63b9090117b9e.css — 200 — 609 B — 32 ms — h2https://metamask.io/_next/static/css/118e88afbfa68fe1.css/_next/static/css/118e88afbfa68fe1.... https://metamask.io/_next/static/css/118e88afbfa68fe1.css — 200 — 578 B — 36 ms — h2https://metamask.io/_next/static/css/56cab8e8454a8aad.css/_next/static/css/56cab8e8454a8aad.... https://metamask.io/_next/static/css/56cab8e8454a8aad.css — 200 — 6.2 KiB — 37 ms — h2https://metamask.io/_next/static/css/343664d0e29cd8c4.css/_next/static/css/343664d0e29cd8c4.... https://metamask.io/_next/static/css/343664d0e29cd8c4.css — 200 — 3.8 KiB — 38 ms — h2https://metamask.io/_next/static/css/ff8134e802dd5a47.css/_next/static/css/ff8134e802dd5a47.... https://metamask.io/_next/static/css/ff8134e802dd5a47.css — 200 — 13.0 KiB — 50 ms — h2https://metamask.io/_next/static/css/6589007be680cda0.css/_next/static/css/6589007be680cda0.... https://metamask.io/_next/static/css/6589007be680cda0.css — 200 — 16.8 KiB — 51 ms — h2https://metamask.io/_next/static/css/a2e987daa5b92a44.css/_next/static/css/a2e987daa5b92a44.... https://metamask.io/_next/static/css/a2e987daa5b92a44.css — 200 — 6.9 KiB — 42 ms — h2https://metamask.io/_next/static/css/76bd2d8b17d4c0e5.css/_next/static/css/76bd2d8b17d4c0e5.... https://metamask.io/_next/static/css/76bd2d8b17d4c0e5.css — 200 — 16.8 KiB — 71 ms — h2https://metamask.io/_next/static/css/50e8d794999f6012.css/_next/static/css/50e8d794999f6012.... https://metamask.io/_next/static/css/50e8d794999f6012.css — 200 — 8.3 KiB — 43 ms — h2https://metamask.io/_next/static/css/66cbc2eb39471080.css/_next/static/css/66cbc2eb39471080.... https://metamask.io/_next/static/css/66cbc2eb39471080.css — 200 — 1.1 KiB — 44 ms — h2https://metamask.io/_next/static/css/c21e3aba1ba9fbc3.css/_next/static/css/c21e3aba1ba9fbc3.... https://metamask.io/_next/static/css/c21e3aba1ba9fbc3.css — 200 — 647 B — 84 ms — h2https://metamask.io/_next/static/css/ab0888582feb9a0f.css/_next/static/css/ab0888582feb9a0f.... https://metamask.io/_next/static/css/ab0888582feb9a0f.css — 200 — 4.4 KiB — 84 ms — h2https://metamask.io/_next/static/css/1bf7c84330a11a79.css/_next/static/css/1bf7c84330a11a79.... https://metamask.io/_next/static/css/1bf7c84330a11a79.css — 200 — 15.3 KiB — 84 ms — h2https://metamask.io/_next/static/css/22afd965e73007e2.css/_next/static/css/22afd965e73007e2.... https://metamask.io/_next/static/css/22afd965e73007e2.css — 200 — 12.7 KiB — 84 ms — h2https://metamask.io/_next/static/css/504bcd11f1b01373.css/_next/static/css/504bcd11f1b01373.... https://metamask.io/_next/static/css/504bcd11f1b01373.css — 200 — 15.5 KiB — 86 ms — h2https://metamask.io/_next/static/css/298b448a740eb375.css/_next/static/css/298b448a740eb375.... https://metamask.io/_next/static/css/298b448a740eb375.css — 200 — 6.3 KiB — 84 ms — h2https://metamask.io/_next/static/css/245c74e0aee85b01.css/_next/static/css/245c74e0aee85b01.... https://metamask.io/_next/static/css/245c74e0aee85b01.css — 200 — 11.7 KiB — 86 ms — h2https://metamask.io/_next/static/css/1809e393fbe91cdb.css/_next/static/css/1809e393fbe91cdb.... https://metamask.io/_next/static/css/1809e393fbe91cdb.css — 200 — 687 B — 84 ms — h2https://cmp.osano.com/AzZMxHTbQDOQD8c1J/c7397bc9-ede0-4a67-8e99-ac20272a6829/osano.jscmp.osano.com/AzZMxHTbQDOQD8c1J/c73... https://cmp.osano.com/AzZMxHTbQDOQD8c1J/c7397bc9-ede0-4a67-8e99-ac20272a6829/osano.js — 200 — 43.4 KiB — 134 ms — h3https://www.googletagmanager.com/gtm.js?id=GTM-M67JQ84www.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-M67JQ84 — 200 — 162.4 KiB — 240 ms — h2https://metamask.io/_next/static/chunks/webpack-f29ae17b4a25bbf7.js/_next/static/chunks/webpack-f29ae1... https://metamask.io/_next/static/chunks/webpack-f29ae17b4a25bbf7.js — 200 — 2.6 KiB — 94 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.8 s LCP 12.8 shttps://metamask.io// https://metamask.io/ — 200 — 66.7 KiB — 294 ms — h2https://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff2/_next/static/media/31ed70c509aa587... https://metamask.io/_next/static/media/31ed70c509aa5870-s.p.woff2 — 200 — 34.7 KiB — 27 ms — h2https://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff2/_next/static/media/7a00e16d33add87... https://metamask.io/_next/static/media/7a00e16d33add871-s.p.woff2 — 200 — 34.9 KiB — 77 ms — h2https://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2/_next/static/media/a757f97c389def1... https://metamask.io/_next/static/media/a757f97c389def12-s.p.woff2 — 200 — 18.7 KiB — 77 ms — h2https://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2/_next/static/media/cbb70915db1e652... https://metamask.io/_next/static/media/cbb70915db1e6525-s.p.woff2 — 200 — 53.6 KiB — 97 ms — 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blob:https://metamask.io/1a48338e-3d21-444f-aacd-e558183ff6a2 — 200 — 0 B — 1 ms — blobblob:https://metamask.io/b86e0909-6d2b-4af4-b020-21d644b6a1a6metamask.io/b86e0909-6d2b-4af4-b020... blob:https://metamask.io/b86e0909-6d2b-4af4-b020-21d644b6a1a6 — 200 — -1 B — 14 ms — blobhttps://forms-na1.hsforms.com/embed/v3/counters.gif?key=forms-embed-v2-DEFINITION_SUCCESS&count=1forms-na1.hsforms.com/embed/v3/coun... https://forms-na1.hsforms.com/embed/v3/counters.gif?key=forms-embed-v2-DEFINITION_SUCCESS&count=1 — 200 — 393 B — 181 ms — h3https://forms-na1.hsforms.com/embed/v3/counters.gif?key=forms-embed-v2-RENDER_SUCCESS&count=1forms-na1.hsforms.com/embed/v3/coun... https://forms-na1.hsforms.com/embed/v3/counters.gif?key=forms-embed-v2-RENDER_SUCCESS&count=1 — 200 — 429 B — 127 ms — h3https://metamask.io/glb/default.jpg/glb/default.jpg https://metamask.io/glb/default.jpg — 200 — 121.1 KiB — 25 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
8% of JavaScript execution is third-party
First-party Third-party 1414ms · 237KB · $19/mo
Unattributable
Other
Costly
Execution 634ms
Transfer 0 KB
Monthly Cost $8/mo
cmp.osano.com
Other
Costly
Execution 557ms
Transfer 43 KB
Monthly Cost $7/mo
js.hsforms.net
Other
Costly
Execution 224ms
Transfer 194 KB
Unused 39%
Monthly Cost $3/mo

These scripts may cost more than they're worth

  • Unattributable adds 634ms and costs ~$8/month
  • cmp.osano.com adds 557ms and costs ~$7/month
  • js.hsforms.net adds 224ms and costs ~$3/month

Unattributable takes 634ms 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

cmp.osano.com takes 557ms 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

js.hsforms.net takes 224ms 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

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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