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

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
3
REVIEW
2
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.
100
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.

851 ms

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

1.27 s

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

377 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.

1.21 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.

5.18 s

Page Load Progression

408 ms
816 ms
1.2 s
1.6 s
2.0 s
2.4 s
2.9 s
3.3 s
Checks
14
7 PASS 2 REVIEW 3 FIX
F
Page Weight Budget
Action
6.4 MB transferred, 317 requests
FIX
6.4 MB transferred, 317 requests
Critical::
Page weighs 21.1 MB (6.4 MB transferred)
Warning::
JavaScript is 941 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 941 KB
Warning::
317 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.3 g CO2 per page load
6.4 MB / 2.4 MB budget
6.4 MB transferred
317 requests
1.3 g CO2 per page load
Other 3.2 MiB 49%
Other 1.2 MiB 19%
JavaScript 941.3 KiB 14%
Other 407.1 KiB 6%
HTML 314.0 KiB 5%
Images 271.1 KiB 4%
Fonts 116.5 KiB 2%
Other 7.8 KiB 0%
CSS 6.5 KiB 0%
Other 4.1 KiB 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
95% third-party, 0 ms blocking
FIX
95% third-party, 0 ms blocking
Warning::
Third-party code accounts for 95% of page weight (6.0 MiB of 6.4 MiB)
Info::
Third-party blocking time is low (0 ms)
95%
First-party Third-party
F
JS Execution Cost
Action
5363ms total JS execution
FIX
5363ms total JS execution
Warning::
https://www.wix.com/: 2005ms CPU time
Warning::
Unattributable: 1243ms CPU time
Warning::
https://bundler-velo.parastorage.com/v_metaSiteId_...: 988ms CPU time
Warning::
https://static.parastorage.com/unpkg/react@18.3.1/...: 274ms CPU time
Warning::
https://static.parastorage.com/services/wix-thunde...: 270ms CPU time
Warning::
Third-party scripts: 3358ms (63% of total)

Main Thread Breakdown

Script Evaluation 37% Other 26% Rendering 16% Style & Layout 11% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
https://www.wix.com/2005ms134ms31ms1st
Unattributable1243ms532ms0ms3rd
https://bundler-velo.parastorage.com/v_metaSiteId_b2f90cc7-6144-47ab-a357-d6d5ac377688/gridAppId_c920683b-4229-43e4-b31f-f51c9427db00/filePath_public_delimiter_custom-elements_delimiter_aria-avatar.js/fileType_js/compression_gzip/depToken_/bundlerRuntimeExperiments_bundlerTrafficToAws-typescriptListExportedFunctions/additionalOptions_noUMD-true?no-umd=true&init-platform-api-provider=true&get-app-def-id-from-package-name=false&disable-yarn-pnp-mode=false988ms431ms8ms3rd
https://static.parastorage.com/unpkg/react@18.3.1/umd/react.production.min.js274ms269ms1ms3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/ooiTpaSharedConfig.f99f86a0.chunk.min.js270ms55ms215ms3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/group_6.5840a531.chunk.min.js157ms75ms11ms3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/thunderbolt-commons.29930cb6.bundle.min.js150ms116ms7ms3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/main.36fd51d5.bundle.min.js89ms63ms9ms3rd
https://static.parastorage.com/services/wix-header/5f10f445c9954ea3ed77cf0067a2ab1d76c0cd67f393d3b46585abc9/app.bundle.min.js68ms47ms9ms3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/group_2.50e484ab.chunk.min.js66ms64ms2ms3rd

Showing top 10 of 11 scripts

C
JS Bundles
Action
132 scripts, 174 KB unused
REVIEW
132 scripts, 174 KB unused
Warning::
https://accounts.google.com/gsi/client: 70 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.parastorage.com/services/wix-thunde...: 37 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.parastorage.com/services/wix-thunde...: 22 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.parastorage.com/services/wix-thunde...: 22 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.parastorage.com/services/wix-thunde...: 22 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 174 KB
174 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://accounts.google.com/gsi/client93 KB70 KB (75%)✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/group_6.5840a531.chunk.min.js66 KB37 KB (56%)✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/main.36fd51d5.bundle.min.js55 KB22 KB (41%)✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/motion.03a29b87.chunk.min.js29 KB22 KB (78%)✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/thunderbolt-commons.29930cb6.bundle.min.js50 KB22 KB (45%)✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/navigation.857097f4.chunk.min.js0 KB—✓3rd
https://static.parastorage.com/services/wix-thunderbolt/dist/windowScroll.b6975c2a.chunk.min.js0 KB—✓3rd
https://browser.sentry-cdn.com/7.120.3/modulemetadata.es5.min.js2 KB—✓3rd
https://static.parastorage.com/unpkg/react@18.3.1/umd/react.production.min.js4 KB—✓3rd
https://static.parastorage.com/unpkg/react-dom@18.3.1/umd/react-dom.production.min.js40 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

B
HTTP Caching
public,max-age=0,must-revalidate
REVIEW
public,max-age=0,must-revalidate
Info::
Cache-Control header is set
Got: public,max-age=0,must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control

public,max-age=0,must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
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
23 images, 0 KB saveable
PASS
23 images, 0 KB saveable
Info::
All images are well-optimized
23 images 271 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (116 KB)
PASS
4 fonts (116 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

116 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 FCP 851 ms LCP 1.3 shttps://static.parastorage.com/fonts/v2/26656ec7-c27d-4bdc-a9f4-6b498bbfad69/madefor-display.var.original.woff2madefor-display.var.ori... https://static.parastorage.com/fonts/v2/26656ec7-c27d-4bdc-a9f4-6b498bbfad69/madefor-display.var.original.woff2 — 38.0 KiB — 0 ms — font-display: swaphttps://static.parastorage.com/fonts/v2/f73e760d-c6b3-4659-9a8c-9ce1d76c1173/madefor-text.var.original.woff2madefor-text.var.origin... https://static.parastorage.com/fonts/v2/f73e760d-c6b3-4659-9a8c-9ce1d76c1173/madefor-text.var.original.woff2 — 39.3 KiB — 0 ms — font-display: swaphttps://static.parastorage.com/tag-bundler/api/v1/fonts-cache/googlefont/woff2/s/wixmadefortext/v13/-W_lXI_oSymQ8Qj-Apx3HGN_Hu1RZiUR5y4coj8.woff2-W_lXI_oSymQ8Qj-Apx3HGN... https://static.parastorage.com/tag-bundler/api/v1/fonts-cache/googlefont/woff2/s/wixmadefortext/v13/-W_lXI_oSymQ8Qj-Apx3HGN_Hu1RZiUR5y4coj8.woff2 — 19.8 KiB — 0 ms — font-display: swaphttps://static.parastorage.com/tag-bundler/api/v1/fonts-cache/googlefont/woff2/s/wixmadefordisplay/v10/SZcl3EX9IbbyeJ8aOluD52KXgUA_7Ed1CVHuAmddFNA.woff2SZcl3EX9IbbyeJ8aOluD52K... https://static.parastorage.com/tag-bundler/api/v1/fonts-cache/googlefont/woff2/s/wixmadefordisplay/v10/SZcl3EX9IbbyeJ8aOluD52KXgUA_7Ed1CVHuAmddFNA.woff2 — 19.3 KiB — 0 ms — font-display: swap
madefor-display.var.ori... woff2 swap
Size 38 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
madefor-text.var.origin... woff2 swap
Size 39 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
-W_lXI_oSymQ8Qj-Apx3HGN... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SZcl3EX9IbbyeJ8aOluD52K... woff2 swap
Size 19 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: Google Cloud

Network Waterfall
317 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
63% of JavaScript execution is third-party
First-party Third-party 3358ms · 393KB · ₪71/mo
Unattributable
Other
Costly
Execution 1243ms
Transfer 0 KB
Monthly Cost ₪26/mo
bundler-velo.parastorage.com
Other
Costly
Execution 988ms
Transfer 42 KB
Monthly Cost ₪21/mo
static.parastorage.com
Other
Costly
Execution 274ms
Transfer 4 KB
Monthly Cost ₪6/mo
static.parastorage.com
Other
Costly
Execution 270ms
Transfer 111 KB
Monthly Cost ₪6/mo
static.parastorage.com
Other
Optional
Execution 157ms
Transfer 66 KB
Unused 56%
Monthly Cost ₪3/mo
static.parastorage.com
Other
Optional
Execution 150ms
Transfer 50 KB
Unused 45%
Monthly Cost ₪3/mo
static.parastorage.com
Other
Optional
Execution 89ms
Transfer 55 KB
Unused 41%
Monthly Cost ₪2/mo
static.parastorage.com
Other
Optional
Execution 68ms
Transfer 45 KB
Monthly Cost ₪1/mo
static.parastorage.com
Other
Optional
Execution 66ms
Transfer 17 KB
Monthly Cost ₪1/mo
static.parastorage.com
Other
Optional
Execution 52ms
Transfer 2 KB
Monthly Cost ₪1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1243ms and costs ~₪26/month
  • bundler-velo.parastorage.com adds 988ms and costs ~₪21/month
  • static.parastorage.com adds 274ms and costs ~₪6/month
  • static.parastorage.com adds 270ms and costs ~₪6/month

63% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

Unattributable takes 1243ms 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

bundler-velo.parastorage.com takes 988ms 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

static.parastorage.com takes 274ms 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

static.parastorage.com takes 270ms 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

56% of static.parastorage.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