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.
1.19 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.21 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
289 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.
2.43 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.
7.05 s
Page Load Progression
FPage Weight BudgetAction4.6 MB transferred, 171 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2921ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.theverge.com/_next/static/chunks/pages/_app-ab7ce795839f258f.js | 585ms | 453ms | 49ms | 3rd |
| https://www.theverge.com/ | 399ms | 8ms | 0ms | 3rd |
| Unattributable | 387ms | 24ms | 0ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604130101/pubads_impl.js?cb=31097816 | 384ms | 310ms | 11ms | 3rd |
| https://www.theverge.com/_next/static/chunks/framework-8e0f3cf51af7b1e2.js | 326ms | 312ms | 5ms | 3rd |
| https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js | 215ms | 172ms | 7ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202602.1.0/otTCF.js | 189ms | 173ms | 1ms | 3rd |
| https://www.theverge.com/metrics/gtm.js?id=GTM-WQ5FM5W | 101ms | 83ms | 16ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js | 82ms | 50ms | 10ms | 3rd |
| https://client.aps.amazon-adsystem.com/publisher.js | 79ms | 70ms | 7ms | 3rd |
Showing top 10 of 13 scripts
FJS BundlesAction58 scripts, 1.5 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.theverge.com/metrics/gtm.js?id=GTM-WQ5FM5W | 697 KB | 213 KB (31%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.theverge.com/_next/static/chunks/pages/_app-ab7ce795839f258f.js | 442 KB | 170 KB (39%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604130101/pubads_impl.js?cb=31097816 | 188 KB | 129 KB (69%) | ✓ | 3rd |
| https://assets.bounceexchange.com/assets/smart-tag/versioned/main-v2_a8ec0b4e51efd1e1ddbdf1b4c6576803.br.js | 116 KB | 87 KB (75%) | ✓ | 3rd |
| https://www.theverge.com/metrics/gtd?id=AW-926030959&cx=c>m=4e64e1&bs=ctrl | 143 KB | 73 KB (51%) | ✓ | 3rd |
| https://cdn.bullwhip.cloud/sonar/vox-verge.umd.js | 125 KB | 68 KB (55%) | ✓ | 3rd |
| https://www.theverge.com/metrics/?id=G-9GXHZT6RVE&cx=c>m=4e64e1&bs=ctrl | 156 KB | 64 KB (41%) | ✓ | 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 InventoryAction171 resources · 4.6 MB · 1.5 MB savings availableFIX
~1.5 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 171 resources | 4.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization24 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
A+Text CompressionAll text resources are compressedPASS
A+Font Loading18 fonts (707 KB)PASS
Web fonts
18
707 KB total
Render-blocking
0
of 18
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: Axis12 Ltd
Network Waterfall171 requests over 10236msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.theverge.com www.theverge.com | Other | 585ms | 442 KB | 39% | $8/mo | Costly |
www.theverge.com www.theverge.com | Other | 399ms | 62 KB | — | $5/mo | Costly |
Unattributable Unattributable | Other | 387ms | 0 KB | — | $5/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 384ms | 188 KB | 69% | $5/mo | Costly |
www.theverge.com www.theverge.com | Other | 326ms | 42 KB | — | $4/mo | Costly |
cdn.concert.io cdn.concert.io | Other | 215ms | 104 KB | — | $3/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 189ms | 18 KB | — | $3/mo | Essential |
www.theverge.com www.theverge.com | Other | 101ms | 697 KB | 31% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 82ms | 129 KB | 47% | $1/mo | Essential |
client.aps.amazon-adsystem.com client.aps.amazon-adsystem.com | Other | 79ms | 91 KB | 41% | $1/mo | Optional |
www.theverge.com www.theverge.com | Other | 63ms | 156 KB | 41% | $1/mo | Optional |
www.gstatic.com www.gstatic.com | Other | 58ms | 0 KB | 49% | $1/mo | Optional |
www.theverge.com www.theverge.com | Other | 52ms | 143 KB | 51% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.theverge.com adds 585ms and costs ~$8/month
- www.theverge.com adds 399ms and costs ~$5/month
- Unattributable adds 387ms and costs ~$5/month
- securepubads.g.doubleclick.net adds 384ms and costs ~$5/month
- www.theverge.com adds 326ms and costs ~$4/month
- cdn.concert.io adds 215ms and costs ~$3/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
www.theverge.com takes 585ms 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
www.theverge.com takes 399ms 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 387ms 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
securepubads.g.doubleclick.net takes 384ms 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
69% of securepubads.g.doubleclick.net'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.theverge.com takes 326ms 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.concert.io takes 215ms 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 www.theverge.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