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https://www.paypal.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
0
PASS
7
INFO
2

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

Mobile Desktop
79
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

1.05 s

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

2.85 s

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

34 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.

2.04 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.

3.21 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
14
7 PASS 5 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 112 requests
FIX
2.3 MB transferred, 112 requests
Info::
Page weighs 7.6 MB (2.3 MB transferred)
Warning::
JavaScript is 1.6 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.6 MB
Info::
Fonts are 211 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 211 KB
Warning::
112 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.48 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
112 requests
0.48 g CO2 per page load
JavaScript 1.6 MiB 69%
Images 271.3 KiB 12%
Fonts 211.3 KiB 9%
CSS 128.6 KiB 6%
HTML 81.5 KiB 4%
Other 27.6 KiB 1%
Other 5.5 KiB 0%
Other 4.5 KiB 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
96% third-party, 0 ms blocking
FIX
96% third-party, 0 ms blocking
Warning::
Third-party code accounts for 96% of page weight (2.2 MiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
D
JS Execution Cost
Action
2289ms total JS execution
FIX
2289ms total JS execution
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 729ms CPU time
Warning::
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-...: 592ms CPU time
Warning::
Unattributable: 437ms CPU time
Warning::
https://www.paypal.com/us/home: 276ms CPU time
Info::
https://www.paypal.com/cdn-cgi/challenge-platform/...: 162ms CPU time
Warning::
Third-party scripts: 1850ms (81% of total)

Main Thread Breakdown

Script Evaluation 62% Other 20% Style & Layout 8% Garbage Collection 4%
ScriptTotalScriptingParse/CompileParty
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js729ms638ms28ms3rd
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/pp-com-components-513864be.js592ms435ms1ms3rd
Unattributable437ms57ms0ms3rd
https://www.paypal.com/us/home276ms54ms9ms1st
https://www.paypal.com/cdn-cgi/challenge-platform/scripts/jsd/main.js162ms153ms3ms1st
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/datadog-629d9f48.js93ms64ms0ms3rd
F
JS Bundles
Action
54 scripts, 833 KB unused
FIX
54 scripts, 833 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 162 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 162 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 162 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-...: 130 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.paypalobjects.com/pa/3pjs/glassbox/det...: 98 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 833 KB
833 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB162 KB (45%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB162 KB (45%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js0 KB162 KB (45%)✓3rd
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/pp-com-components-513864be.js240 KB130 KB (54%)✓3rd
https://www.paypalobjects.com/pa/3pjs/glassbox/detector-bootstrap.min.js142 KB98 KB (69%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T562K64Q&l=gtmMktgDataLayer110 KB72 KB (66%)✓3rd
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/datadog-629d9f48.js54 KB28 KB (53%)✓3rd
https://www.paypalobjects.com/martech/tm/paypal/3pjs/adobe/alloy.min.js39 KB21 KB (53%)✓3rd
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/BrandMomentSection-3a9df7a2.js2 KB—✓3rd
https://www.paypalobjects.com/ppcmsnodeweb/pp-com-components/LayeredCardSection-920370df.js1 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
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.

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
Image Optimization
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 271 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (211 KB)
PASS
4 fonts (211 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

211 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.1 s LCP 2.9 shttps://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Plain/PayPalPlain-Regular.woff2PayPalPlain-Regular.woff2 https://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Plain/PayPalPlain-Regular.woff2 — 77.6 KiB — 0 ms — font-display: swaphttps://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Plain/PayPalPlain-Medium.woff2PayPalPlain-Medium.woff2 https://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Plain/PayPalPlain-Medium.woff2 — 77.7 KiB — 0 ms — font-display: swaphttps://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Pro/PayPalProSWeb-Book.woff2PayPalProSWeb-Book.woff2 https://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Pro/PayPalProSWeb-Book.woff2 — 29.0 KiB — 0 ms — font-display: swaphttps://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Pro/PayPalProSWeb-Black.woff2PayPalProSWeb-Black.woff2 https://www.paypalobjects.com/marketing/pp-com-components/fonts/PayPal%20Pro/PayPalProSWeb-Black.woff2 — 27.0 KiB — 0 ms — font-display: swap
PayPalPlain-Regular.woff2 woff2 swap
Size 78 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
PayPalPlain-Medium.woff2 woff2 swap
Size 78 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
PayPalProSWeb-Book.woff2 woff2 swap
Size 29 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
PayPalProSWeb-Black.woff2 woff2 swap
Size 27 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
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
112 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
81% of JavaScript execution is third-party
First-party Third-party 1850ms · 294KB · $11/mo
www.gstatic.com
Other
Costly
Execution 729ms
Transfer 0 KB
Unused 45%
Monthly Cost $4/mo
www.paypalobjects.com
Other
Costly
Execution 592ms
Transfer 240 KB
Unused 54%
Monthly Cost $3/mo
Unattributable
Other
Costly
Execution 437ms
Transfer 0 KB
Monthly Cost $2/mo
www.paypalobjects.com
Other
Optional
Execution 93ms
Transfer 54 KB
Unused 53%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.gstatic.com adds 729ms and costs ~$4/month
  • www.paypalobjects.com adds 592ms and costs ~$3/month
  • Unattributable adds 437ms and costs ~$2/month

81% 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.gstatic.com takes 729ms 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.paypalobjects.com takes 592ms 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

54% of www.paypalobjects.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

Unattributable takes 437ms 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

53% of www.paypalobjects.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.

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