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.
1.09 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.55 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.19 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.
3.55 s
Page Load Progression
FPage Weight BudgetAction3.7 MB transferred, 240 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
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
FJS BundlesAction80 scripts, 550 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://deadspin.com/_next/static/chunks/pages/%5B...article%5D-8950cd320a2ba6d6.js | 36 KB | 139 KB (96%) | ✓ | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-TFDJ9ZQ3 | 111 KB | 72 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-QC7VNH4BEF | 158 KB | 64 KB (41%) | ✓ | 3rd |
| https://deadspin.com/_next/static/chunks/4927-e7ea590c5cd2f8d3.js | 19 KB | 58 KB (78%) | ✓ | 1st |
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/691-bundle.js | 101 KB | 54 KB (54%) | ✓ | 3rd |
| https://static-cdn.spot.im/production/ads/tags/v22.32.1/ads/ads.js | 76 KB | 45 KB (59%) | ✓ | 3rd |
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/296-bundle.js | 55 KB | 37 KB (69%) | ✓ | 3rd |
| https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-22 | 101 KB | 36 KB (35%) | ✓ | 3rd |
| https://faves.grow.me/app.9.42.0.js | 64 KB | 23 KB (36%) | ✓ | 3rd |
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/467-bundle.js | 30 KB | 22 KB (73%) | ✓ | 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 InventoryAction240 resources · 3.7 MB · 550 KB savings availableFIX
~550.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 240 resources | 3.7 MiB | ||||||
BThird-Party Impact56% third-party, 0 ms blockingREVIEW
BImage Optimization55 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
CJS Execution CostAction1576ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/691-bundle.js | 517ms | 451ms | 6ms | 3rd |
| Unattributable | 345ms | 34ms | 0ms | 3rd |
| https://deadspin.com/ | 210ms | 9ms | 1ms | 1st |
| https://deadspin.com/_next/static/chunks/framework-006f0c32e3c31919.js | 155ms | 124ms | 4ms | 1st |
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/696-bundle.js | 129ms | 24ms | 0ms | 3rd |
| https://static-cdn.spot.im/production/social/tags/v5.26.0/launcher/entry-bundle.js | 85ms | 81ms | 1ms | 3rd |
| https://eu-us-cdn.consentmanager.net/delivery/customdata/bV8xLndfMTM0MzQ5LnJfR0RQUi5sX2VuLmRfNTIzNDIueF80Mi52LnAudF81MjM0Mi54dF8yNTc2.js | 74ms | 59ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-QC7VNH4BEF | 61ms | 52ms | 8ms | 3rd |
BHTTP Cachings-maxage=10, stale-while-revalidateREVIEW
s-maxage=10, stale-while-revalidate
| Directive | Value | Meaning |
|---|---|---|
| s-maxage | 10 | CDN caches for 10 seconds |
| stale-while-revalidate | — | Serve stale while revalidating |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading16 fonts (108 KB)PASS
Web fonts
16
108 KB total
Render-blocking
0
of 16
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+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall240 requests over 4794msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static-cdn.spot.im static-cdn.spot.im | Other | 517ms | 101 KB | 54% | $3/mo | Costly |
Unattributable Unattributable | Other | 345ms | 0 KB | — | $2/mo | Costly |
static-cdn.spot.im static-cdn.spot.im | Other | 129ms | 7 KB | — | $1/mo | Optional |
static-cdn.spot.im static-cdn.spot.im | Other | 85ms | 15 KB | — | $0/mo | Optional |
eu-us-cdn.consentmanager.net eu-us-cdn.consentmanager.net | Other | 74ms | 26 KB | — | $0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 61ms | 158 KB | 41% | $0/mo | Optional |
These scripts may cost more than they're worth
- static-cdn.spot.im adds 517ms and costs ~$3/month
- Unattributable adds 345ms and costs ~$2/month
77% 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
static-cdn.spot.im takes 517ms 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
54% of static-cdn.spot.im'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
Unattributable takes 345ms 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