Skip to content
https://www.robinhood.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
54
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

1.97 s

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

3.33 s

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

293 ms

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

0.001

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

4.11 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.

3.90 s

Page Load Progression

832 ms
1.7 s
2.5 s
3.3 s
4.2 s
5.0 s
5.8 s
6.7 s
Checks
14
5 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
8.6 MB transferred, 68 requests
FIX
8.6 MB transferred, 68 requests
Critical::
Page weighs 13.3 MB (8.6 MB transferred)
Warning::
JavaScript is 1.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.7 MB
Info::
68 HTTP requests
Info::
Estimated 1.8 g CO2 per page load
8.6 MB / 2.4 MB budget
8.6 MB transferred
68 requests
1.8 g CO2 per page load
Other 5.8 MiB 67%
JavaScript 1.7 MiB 19%
Images 946.7 KiB 11%
Fonts 171.1 KiB 2%
HTML 34.3 KiB 0%
Other 29.7 KiB 0%
Other 9.8 KiB 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

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 (8.6 MiB of 8.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
28 scripts, 964 KB unused
FIX
28 scripts, 964 KB unused
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 435 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 339 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 119 KB unused (79%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 71 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 964 KB
964 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/ab5b2209-1a6117da6ba683060cf6.js599 KB435 KB (73%)✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/pages/_app-a960c881833e76351891.js525 KB339 KB (65%)✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/93794-e6d277895fc59dff0be4.js151 KB119 KB (79%)✓3rd
https://cdn.robinhood.com/assets/generated_assets/webapp/vendor/user_centrics/3.33.0/bundle.js143 KB71 KB (50%)✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/67893-956ecd225bc57b8a344b.js6 KB—✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/93883-cf7a17e75f5bf4c8a0d4.js8 KB—✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/61011-064b1422eb83b9cd7084.js4 KB—✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/96895-bb4446d4753b5a9f4292.js5 KB—✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/6389-e5af824c86d85f24a1a8.js34 KB—✓3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/64010-57d27a8e802f96227fe2.js5 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

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
8 images, 0 KB saveable
REVIEW
8 images, 0 KB saveable
Info::
All images are well-optimized
8 images 947 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1077ms total JS execution
REVIEW
1077ms total JS execution
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 390ms CPU time
Warning::
https://cdn.robinhood.com/assets/generated_assets/...: 272ms CPU time
Info::
Unattributable: 195ms CPU time
Info::
https://cdn.robinhood.com/assets/generated_assets/...: 123ms CPU time
Info::
https://robinhood.com/eu/fr/: 98ms CPU time
Warning::
Third-party scripts: 1077ms (100% of total)

Main Thread Breakdown

Script Evaluation 59% Script Parsing & Compilation 18% Other 16% Style & Layout 6%
ScriptTotalScriptingParse/CompileParty
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/ab5b2209-1a6117da6ba683060cf6.js390ms291ms84ms3rd
https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/chunks/pages/_app-a960c881833e76351891.js272ms213ms58ms3rd
Unattributable195ms25ms0ms3rd
https://cdn.robinhood.com/assets/generated_assets/webapp/vendor/user_centrics/3.33.0/bundle.js123ms103ms17ms3rd
https://robinhood.com/eu/fr/98ms1ms0ms3rd
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
6 fonts (171 KB)
PASS
6 fonts (171 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

171 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 2.0 s LCP 3.3 shttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Bold__0ef7c688bd1385a7df6941a13f3b4e980cd2f90f01b9268c9bb3e95394eec486.woff2CapsuleSansText-Bold__0... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Bold__0ef7c688bd1385a7df6941a13f3b4e980cd2f90f01b9268c9bb3e95394eec486.woff2 — 19.3 KiB — 0 ms — font-display: swaphttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Book__6573ba5ca76b29d5ffe83d94b27a4a8a09c8d5c8d5f2ca0719aaeef6856042d8.woff2CapsuleSansText-Book__6... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Book__6573ba5ca76b29d5ffe83d94b27a4a8a09c8d5c8d5f2ca0719aaeef6856042d8.woff2 — 19.6 KiB — 0 ms — font-display: swaphttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Medium__d6e0f9a85b076741a771ec8574c1278fb65fe34160e73bd8beffa2f927831302.woff2CapsuleSansText-Medium_... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/CapsuleSansText-Medium__d6e0f9a85b076741a771ec8574c1278fb65fe34160e73bd8beffa2f927831302.woff2 — 19.5 KiB — 0 ms — font-display: swaphttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/MartinaPlantijn-Regular__e02ea76d18e952604fbe5636471d4c7e48f8db1c01fa15ee0e0170347f966405.woff2MartinaPlantijn-Regular... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/MartinaPlantijn-Regular__e02ea76d18e952604fbe5636471d4c7e48f8db1c01fa15ee0e0170347f966405.woff2 — 44.6 KiB — 0 ms — font-display: swaphttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/RHPhonic-Regular__66da8fcfda05a8b53afe5c8697bdb1b2fd883e748a29f65a628d7a98aad40982.woff2RHPhonic-Regular__66da8... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/RHPhonic-Regular__66da8fcfda05a8b53afe5c8697bdb1b2fd883e748a29f65a628d7a98aad40982.woff2 — 33.7 KiB — 0 ms — font-display: swaphttps://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/RHPhonic-Bold__7f2cc2d831ae8cb196f347fee306ddd1ce4eb72b3dd76a05e28720a23f5a4ee3.woff2RHPhonic-Bold__7f2cc2d8... https://cdn.robinhood.com/assets/generated_assets/brand/_next/static/fonts/RHPhonic-Bold__7f2cc2d831ae8cb196f347fee306ddd1ce4eb72b3dd76a05e28720a23f5a4ee3.woff2 — 34.4 KiB — 0 ms — font-display: swap
CapsuleSansText-Bold__0... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
CapsuleSansText-Book__6... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
CapsuleSansText-Medium_... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
MartinaPlantijn-Regular... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
RHPhonic-Regular__66da8... woff2 swap
Size 34 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
RHPhonic-Bold__7f2cc2d8... woff2 swap
Size 34 KB
Load time 0 ms
Start 0 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
68 requests over 0ms
INFO

Performance analysis not available for this result.

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 1077ms · 1299KB · €12/mo
cdn.robinhood.com
Other
Costly
Execution 390ms
Transfer 599 KB
Unused 73%
Monthly Cost €4/mo
cdn.robinhood.com
Other
Costly
Execution 272ms
Transfer 525 KB
Unused 65%
Monthly Cost €3/mo
Unattributable
Other
Optional
Execution 195ms
Transfer 0 KB
Monthly Cost €2/mo
cdn.robinhood.com
Other
Optional
Execution 123ms
Transfer 143 KB
Unused 50%
Monthly Cost €1/mo
robinhood.com
Other
Optional
Execution 98ms
Transfer 33 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • cdn.robinhood.com adds 390ms and costs ~€4/month
  • cdn.robinhood.com adds 272ms 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

cdn.robinhood.com takes 390ms 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

73% of cdn.robinhood.com'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

cdn.robinhood.com takes 272ms 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

65% of cdn.robinhood.com'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