Performance
· 23 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.
1.17 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.82 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
64 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.531
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.33 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.
5.91 s
Page Load Progression
FPage Weight BudgetAction6.9 MB transferred, 117 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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction29 scripts, 1.3 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://app-assets.project1content.com/tour/vendors~main.b315c841.js | 708 KB | 411 KB (58%) | ✓ | 3rd |
| https://onelist.project1content.com/static/js/main.19d9ed75.js | 392 KB | 258 KB (66%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/nY0xPItgwtlvjEjk2TqdwOQz/recaptcha__en.js | 0 KB | 182 KB (52%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/nY0xPItgwtlvjEjk2TqdwOQz/recaptcha__en.js | 346 KB | 182 KB (52%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/nY0xPItgwtlvjEjk2TqdwOQz/recaptcha__en.js | 347 KB | 182 KB (52%) | ✓ | 3rd |
| https://onenavigation.project1content.com/static/js/main.2d855f99.js | 195 KB | 97 KB (50%) | ✓ | 3rd |
| https://app-assets.project1content.com/tour/main.2dc69336.js | 134 KB | 67 KB (51%) | ✓ | 3rd |
| https://app-assets.project1content.com/tour/@one/blocks/async/FeaturedSceneListBlock.fd34cc40.js | 9 KB | — | ✓ | 3rd |
| https://www.milfed.com/_p1cdn/tour/atlaslib-js.ef4819d8.js | 15 KB | — | ✓ | 3rd |
| https://app-assets.project1content.com/tour/@one/blocks/async/Rte2Block.0cd8fe9a.js | 2 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
FPage Weight InventoryAction117 resources · 6.9 MB · 1.3 MB savings availableFIX
~1.3 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 117 resources | 6.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction59 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
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
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
CJS Execution CostAction1801ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://app-assets.project1content.com/tour/vendors~main.b315c841.js | 458ms | 301ms | 44ms | 3rd |
| https://app-assets.project1content.com/tour/main.2dc69336.js | 386ms | 343ms | 10ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/nY0xPItgwtlvjEjk2TqdwOQz/recaptcha__en.js | 257ms | 217ms | 22ms | 3rd |
| https://www.milfed.com/ | 197ms | 8ms | 21ms | 3rd |
| Unattributable | 194ms | 7ms | 0ms | 1st |
| https://onelist.project1content.com/static/js/main.19d9ed75.js | 141ms | 99ms | 24ms | 3rd |
| https://onenavigation.project1content.com/static/js/main.2d855f99.js | 113ms | 89ms | 12ms | 3rd |
| https://www.milfed.com/_p1cdn/tour/atlaslib-js.ef4819d8.js | 55ms | 50ms | 1ms | 3rd |
CDocument CompressionActionDocument response served uncompressedREVIEW
CAsset CompressionAction1 of 2 asset hosts serve text uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (115 KB)PASS
Web fonts
5
115 KB total
Render-blocking
0
of 5
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 HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall117 requests over 2330msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
app-assets.project1content.com app-assets.project1content.com | Other | 458ms | 708 KB | 58% | $6/mo | Costly |
app-assets.project1content.com app-assets.project1content.com | Other | 386ms | 134 KB | 51% | $5/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 257ms | 0 KB | 52% | $3/mo | Costly |
www.milfed.com www.milfed.com | Other | 197ms | 60 KB | — | $3/mo | Optional |
onelist.project1content.com onelist.project1content.com | Other | 141ms | 392 KB | 66% | $2/mo | Optional |
onenavigation.project1content.com onenavigation.project1content.com | Other | 113ms | 195 KB | 50% | $1/mo | Optional |
www.milfed.com www.milfed.com | Other | 55ms | 15 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- app-assets.project1content.com adds 458ms and costs ~$6/month
- app-assets.project1content.com adds 386ms and costs ~$5/month
- www.gstatic.com adds 257ms and costs ~$3/month
89% 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
app-assets.project1content.com takes 458ms 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 app-assets.project1content.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
app-assets.project1content.com takes 386ms 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
51% of app-assets.project1content.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
www.gstatic.com takes 257ms 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
52% of www.gstatic.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
66% of onelist.project1content.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
Image Optimization14 images, 2212 KB total, 1830 KB wastedINFO
Image Optimization Audit
Total Images
14
Total Size
2212 KB
Oversized
9
Wasted
1830 KB