Performance
· 15 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.
721 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.09 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
494 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.
1.63 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.
5.09 s
Page Load Progression
475 ms
950 ms
1.4 s
1.9 s 2.4 s
2.8 s 3.3 s
3.8 sFPage Weight BudgetAction3.9 MB transferred, 164 requestsFIX
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
Subset fonts to include only used characters, or switch to system font stacks.
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.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DJS Execution CostAction2973ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://fortune.com/_next/static/chunks/1414-21f4376c804ee58e.js | 931ms | 761ms | 25ms | 1st |
| https://fortune.com/ | 474ms | 25ms | 18ms | 1st |
| Unattributable | 400ms | 47ms | 0ms | 3rd |
| https://fortune.com/_next/static/chunks/webpack-1f44bbff9e5cc18e.js | 184ms | 177ms | 0ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-N68KRG3>m_auth=vyyzgXnL2OSk1qxPfrdxWw>m_preview=env-2>m_cookies_win=x | 165ms | 142ms | 14ms | 3rd |
| https://cdn.p-n.io/pushly-sdk.min.js?domain_key=V8bksA3sRGGY3t747NnWl0xCeIHaGvbR9fxg | 141ms | 119ms | 6ms | 3rd |
| https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js | 123ms | 93ms | 5ms | 3rd |
| https://s.ntv.io/serve/load.js | 112ms | 88ms | 22ms | 3rd |
| https://cdn.fortune.com/api/tinypass.min.js | 109ms | 69ms | 22ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202512.1.0/otBannerSdk.js | 87ms | 60ms | 12ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction85 scripts, 905 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://s.ntv.io/serve/load.js | 251 KB | 195 KB (78%) | ✓ | 3rd |
| https://fortune.com/_next/static/chunks/1414-21f4376c804ee58e.js | 216 KB | 131 KB (61%) | ✓ | 1st |
| https://accounts.google.com/gsi/client | 96 KB | 72 KB (75%) | ✓ | 3rd |
| https://cdn.fortune.com/api/tinypass.min.js | 133 KB | 68 KB (52%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202512.1.0/otBannerSdk.js | 126 KB | 63 KB (50%) | ✓ | 3rd |
| https://cdn.optimizely.com/js/5509364224622592.js | 90 KB | 58 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N68KRG3>m_auth=vyyzgXnL2OSk1qxPfrdxWw>m_preview=env-2>m_cookies_win=x | 146 KB | 57 KB (39%) | ✓ | 3rd |
| https://vx.fortune.com/_sam/H4sIAAAAAAAA_z3IwQ6AIAgA0B9KmJ76m4bJHI6oBa7f7-bt7eEnrXNgEw8Mvh6lYBy-DHVaU95QpTqS9an0pgwFSkHJu63T-yTlgy1Nh-E_BjVxNVoAAAA?compressed=true&v=16.760.0 | 53 KB | 37 KB (70%) | ✓ | 3rd |
| https://fortune.com/_next/static/chunks/app/(default)/(dotCom)/(ads)/layout-1be916cd3596b13d.js | 34 KB | 32 KB (95%) | ✓ | 1st |
| https://2e5567a8-b7dd-4f2f-b97e-e43268059a3a.redfastlabs.com/assets/redfast.js | 66 KB | 32 KB (48%) | ✓ | 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 InventoryAction164 resources · 3.9 MB · 905 KB savings availableFIX
~905.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 164 resources | 3.9 MiB | ||||||
BImage Optimization28 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachings-maxage=600, stale-while-revalidate=31535400REVIEW
s-maxage=600, stale-while-revalidate=31535400
| Directive | Value | Meaning |
|---|---|---|
| s-maxage | 600 | CDN caches for 10 minutes |
| stale-while-revalidate | 31535400 | Serve stale for 52 weeks while fetching fresh |
AThird-Party Impact39% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading7 fonts (259 KB)PASS
Web fonts
7
259 KB total
Render-blocking
0
of 7
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
Network Waterfall164 requests over 5965msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 400ms | 0 KB | — | €7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 165ms | 146 KB | 39% | €3/mo | Optional |
cdn.p-n.io cdn.p-n.io | Other | 141ms | 46 KB | — | €2/mo | Optional |
cdnjs cdnjs.cloudflare.com | CDN | 123ms | 30 KB | — | €2/mo | Optional |
s.ntv.io s.ntv.io | Other | 112ms | 251 KB | 78% | €2/mo | Optional |
cdn.fortune.com cdn.fortune.com | Other | 109ms | 133 KB | 52% | €2/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 87ms | 126 KB | 50% | €2/mo | Essential |
OneTrust cdn.cookielaw.org | Consent | 73ms | 22 KB | — | €1/mo | Essential |
OneTrust cdn.cookielaw.org | Consent | 60ms | 38 KB | — | €1/mo | Essential |
vx.fortune.com vx.fortune.com | Other | 57ms | 53 KB | 70% | €1/mo | Optional |
id.fortune.com id.fortune.com | Other | 56ms | 1 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 400ms and costs ~€7/month
47% of JavaScript execution time comes from third-party scripts.
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 400ms 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
78% of s.ntv.io'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
52% of cdn.fortune.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
70% of vx.fortune.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