Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.22 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
748 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.
4.56 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.
9.62 s
Page Load Progression
FPage Weight BudgetAction4.0 MB transferred, 53 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2652ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://company.wizards.com/en | 545ms | 10ms | 23ms | 3rd |
| Unattributable | 507ms | 191ms | 0ms | 3rd |
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 473ms | 335ms | 124ms | 3rd |
| https://company.wizards.com/_nuxt/13.fe9d82e04fcd9b267eee.js | 468ms | 430ms | 12ms | 3rd |
| https://company.wizards.com/_nuxt/33.56616fe909b8bde9b5bc.js | 249ms | 146ms | 61ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P794DQ7 | 181ms | 147ms | 30ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DQ11JKKJVD&cx=c>m=4e64h1 | 179ms | 134ms | 44ms | 3rd |
| https://www.google-analytics.com/analytics.js | 51ms | 40ms | 5ms | 3rd |
DJS BundlesAction21 scripts, 382 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 259 KB | 119 KB (46%) | ✓ | 3rd |
| https://company.wizards.com/_nuxt/33.56616fe909b8bde9b5bc.js | 177 KB | 102 KB (58%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P794DQ7 | 132 KB | 66 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DQ11JKKJVD&cx=c>m=4e64h1 | 152 KB | 65 KB (42%) | ✓ | 3rd |
| https://company.wizards.com/_nuxt/14.26b3af9e506eba32939a.js | 77 KB | 31 KB (40%) | ✓ | 3rd |
| https://company.wizards.com/_nuxt/36.1ed2f350f22d89278e24.js | 10 KB | — | ✓ | 3rd |
| https://company.wizards.com/_nuxt/13.fe9d82e04fcd9b267eee.js | 43 KB | — | ✓ | 3rd |
| https://company.wizards.com/_nuxt/54.27266e7a13f882ca58ef.js | 5 KB | — | ✓ | 3rd |
| https://company.wizards.com/_nuxt/52.31ea3286c5df8c41ac21.js | 5 KB | — | ✓ | 3rd |
| https://company.wizards.com/_nuxt/44.a2b129b90f1a4395519e.js | 10 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
DPage Weight InventoryAction53 resources · 4.0 MB · 382 KB savings availableFIX
~381.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 53 resources | 4.0 MiB | ||||||
CImage OptimizationAction14 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingmax-age=0REVIEW
max-age=0
| Directive | Value | Meaning |
|---|---|---|
| max-age | 0 | Cache for 0 seconds |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (95 KB)PASS
Web fonts
3
95 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints1 hints, 0 missing preconnectsPASS
Current Resource Hints
1 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall53 requests over 1500msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
company.wizards.com company.wizards.com | Other | 545ms | 40 KB | — | $9/mo | Costly |
Unattributable Unattributable | Other | 507ms | 0 KB | — | $9/mo | Costly |
cdn.ketchjs.com cdn.ketchjs.com | Other | 473ms | 259 KB | 46% | $8/mo | Costly |
company.wizards.com company.wizards.com | Other | 468ms | 43 KB | — | $8/mo | Costly |
company.wizards.com company.wizards.com | Other | 249ms | 177 KB | 58% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 181ms | 132 KB | 50% | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 179ms | 152 KB | 42% | $3/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 51ms | 21 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- company.wizards.com adds 545ms and costs ~$9/month
- Unattributable adds 507ms and costs ~$9/month
- cdn.ketchjs.com adds 473ms and costs ~$8/month
- company.wizards.com adds 468ms and costs ~$8/month
- company.wizards.com adds 249ms and costs ~$4/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
company.wizards.com takes 545ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 507ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cdn.ketchjs.com takes 473ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
company.wizards.com takes 468ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
company.wizards.com takes 249ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
58% of company.wizards.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev