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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
5
REVIEW
2
PASS
5
INFO
2

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

Mobile Desktop
92
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.
77
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.

551 ms

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

931 ms

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

202 ms

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

0.002

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

1.20 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.

4.41 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
5 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
2.8 MB transferred, 159 requests
FIX
2.8 MB transferred, 159 requests
Warning::
Page weighs 8.4 MB (2.8 MB transferred)
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 MB
Warning::
159 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.59 g CO2 per page load
2.8 MB / 2.4 MB budget
2.8 MB transferred
159 requests
0.59 g CO2 per page load
JavaScript 1.9 MiB 69%
Images 543.3 KiB 19%
Fonts 163.9 KiB 6%
CSS 113.6 KiB 4%
HTML 56.0 KiB 2%
Other 5.5 KiB 0%
Other 4.8 KiB 0%
Other 4.7 KiB 0%
Other 3.7 KiB 0%
Other 851 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

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
68% third-party, 0 ms blocking
FIX
68% third-party, 0 ms blocking
Warning::
Third-party code accounts for 68% of page weight (1.9 MiB of 2.8 MiB)
Info::
Third-party blocking time is low (0 ms)
32%
68%
First-party Third-party
F
JS Execution Cost
Action
9227ms total JS execution
FIX
9227ms total JS execution
Warning::
https://www.etsy.com/: 7419ms CPU time
Warning::
Unattributable: 559ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-KWW...: 174ms CPU time
Info::
https://www.etsy.com/include/tags.js: 157ms CPU time
Info::
https://www.etsy.com/ac/evergreenVendor/js/en-US/a...: 121ms CPU time
Info::
Third-party scripts: 1361ms (15% of total)

Main Thread Breakdown

Rendering 33% Other 30% Style & Layout 21% Script Evaluation 13%
ScriptTotalScriptingParse/CompileParty
https://www.etsy.com/7419ms24ms5ms1st
Unattributable559ms26ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KWW5SS174ms147ms19ms3rd
https://www.etsy.com/include/tags.js157ms129ms3ms1st
https://www.etsy.com/ac/evergreenVendor/js/en-US/app-shell/globals/index.2a97df21982eda4da590.js121ms105ms14ms1st
https://www.etsy.com/ac/evergreenVendor/js/en-US/vesta_homepage/bootstrap.3ed0a75e5b062b362051.js116ms82ms29ms1st
https://www.googletagmanager.com/gtag/js?id=G-KR3J610VYM&cx=c&gtm=4e6411113ms84ms13ms3rd
https://www.googletagmanager.com/gtag/destination?id=AW-995917074&cx=c&gtm=4e641189ms77ms12ms3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js87ms73ms12ms3rd
https://www.googletagmanager.com/gtag/destination?id=AW-658194373&cx=c&gtm=4e641185ms73ms11ms3rd

Showing top 10 of 15 scripts

F
JS Bundles
Action
48 scripts, 912 KB unused
FIX
48 scripts, 912 KB unused
Warning::
https://www.etsy.com/ac/evergreenVendor/js/en-US/v...: 164 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.etsy.com/ac/evergreenVendor/js/en-US/v...: 95 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.etsy.com/ac/evergreenVendor/js/en-US/a...: 89 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://accounts.google.com/gsi/client: 69 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-KR3J...: 66 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 912 KB
912 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.etsy.com/ac/evergreenVendor/js/en-US/vesta_homepage/bootstrap.3ed0a75e5b062b362051.js241 KB164 KB (69%)✓1st
https://www.etsy.com/ac/evergreenVendor/js/en-US/vendor_bundle.1e397356b19ae5cf6c49.js133 KB95 KB (72%)✓1st
https://www.etsy.com/ac/evergreenVendor/js/en-US/app-shell/globals/index.2a97df21982eda4da590.js134 KB89 KB (66%)✓1st
https://accounts.google.com/gsi/client93 KB69 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-KR3J610VYM&cx=c&gtm=4e6411171 KB66 KB (38%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=DC-9910951&cx=c&gtm=4e6411128 KB61 KB (48%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=DC-14895689&cx=c&gtm=4e6411128 KB61 KB (48%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=AW-995917074&cx=c&gtm=4e6411145 KB59 KB (41%)✓3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js110 KB59 KB (54%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=AW-658194373&cx=c&gtm=4e6411145 KB59 KB (41%)✓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

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: max-age=0, private, no-cache, no-store, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

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

DirectiveValueMeaning
max-age0Cache for 0 seconds
private—Only browser cache, not CDN/proxy
no-cache—Cache but always revalidate first
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
B
Image Optimization
31 images, 0 KB saveable
REVIEW
31 images, 0 KB saveable
Info::
All images are well-optimized
31 images 543 KB
0 oversized -0 KB
13 legacy format
0 missing dimensions CLS risk
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
5 fonts (164 KB)
PASS
5 fonts (164 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

164 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 500 ms 1.0 s FCP 551 ms LCP 931 mshttps://www.etsy.com/assets/type/Graphik-Regular-Web.woff2Graphik-Regular-Web.woff2 https://www.etsy.com/assets/type/Graphik-Regular-Web.woff2 — 28.5 KiB — 0 ms — font-display: swaphttps://www.etsy.com/assets/type/Graphik-Medium-Web.woff2Graphik-Medium-Web.woff2 https://www.etsy.com/assets/type/Graphik-Medium-Web.woff2 — 31.9 KiB — 0 ms — font-display: swaphttps://www.etsy.com/assets/type/ABCDiatype-Regular.woff2?v=260318ABCDiatype-Regular.woff2 https://www.etsy.com/assets/type/ABCDiatype-Regular.woff2?v=260318 — 32.5 KiB — 0 ms — font-display: swaphttps://www.etsy.com/assets/type/ABCDiatype-Bold.woff2?v=260318ABCDiatype-Bold.woff2 https://www.etsy.com/assets/type/ABCDiatype-Bold.woff2?v=260318 — 34.2 KiB — 0 ms — font-display: swaphttps://www.etsy.com/assets/type/ABCOtto-Regular.woff2?v=260318ABCOtto-Regular.woff2 https://www.etsy.com/assets/type/ABCOtto-Regular.woff2?v=260318 — 36.9 KiB — 0 ms — font-display: swap
Graphik-Regular-Web.woff2 woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Graphik-Medium-Web.woff2 woff2 swap
Size 32 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ABCDiatype-Regular.woff2 woff2 swap
Size 33 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ABCDiatype-Bold.woff2 woff2 swap
Size 34 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ABCOtto-Regular.woff2 woff2 swap
Size 37 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
159 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
15% of JavaScript execution is third-party
First-party Third-party 1361ms · 1059KB · $18/mo
Unattributable
Other
Costly
Execution 559ms
Transfer 0 KB
Monthly Cost $7/mo
Google Tag Manager
Tag Manager
Optional
Execution 174ms
Transfer 175 KB
Unused 32%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 113ms
Transfer 171 KB
Unused 38%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 89ms
Transfer 145 KB
Unused 41%
Monthly Cost $1/mo
analytics.tiktok.com
Other
Optional
Execution 87ms
Transfer 110 KB
Unused 54%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 85ms
Transfer 145 KB
Unused 41%
Monthly Cost $1/mo
res4.applovin.com
Other
Optional
Execution 77ms
Transfer 31 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 66ms
Transfer 128 KB
Unused 48%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 58ms
Transfer 128 KB
Unused 48%
Monthly Cost $1/mo
s.pinimg.com
Other
Optional
Execution 51ms
Transfer 27 KB
Unused 78%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 559ms and costs ~$7/month

Unattributable takes 559ms 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 analytics.tiktok.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

78% of s.pinimg.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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