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.
5.53 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
14.75 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.38 s
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.
6.78 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.
14.80 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction6106ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.verywellhealth.com/ | 1040ms | 127ms | 41ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otGPP.js | 853ms | 759ms | 22ms | 3rd |
| Unattributable | 686ms | 23ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-XMRMNPB3BJ&cx=c>m=4e64h1h1 | 494ms | 400ms | 90ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 482ms | 381ms | 86ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64h1h1 | 478ms | 392ms | 78ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 453ms | 330ms | 108ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64h1h1 | 403ms | 282ms | 68ms | 3rd |
| https://www.verywellhealth.com/static/8.218.0/cache/eNp9lFFugzAMhi-0jDNs07SnStXWC5hgICPEKHao2tMvoK0F5vIQlOT74zi_EwoWEGeLHoJ4LL65kAgWn4r1vKV-oIBBuPBwoSST8puNbdF2W3FGnqDCSgGWqHPICknivBOd1cHs4Yr6XT4dqXOh2RWNGCqKhbSRJE89CIMGKn7I7HlUWJ87powI3UAuW3iTZNYieGl3E_NwvbC7YnabQu2arcS7kte6vAlGRiuOwk4lLcd6_mg5w6XUPBigQTM6PO_EbaSfS-2d7cyf91qsVHIq74Cq5HE-yufpdWqP0Bwzd95HXNq5UEH1a5aBwa1HSiJvh6MWRCnKcocDSnSWT1MyGFVNmktgak8Ut0NtwZcn_Twfx9PUNCQQG5TpdjPU6B2LpmK7vrh3EjG7mPC0rdOioHnlpGwG0QPUEbmF0uPL_7dxu538nMKIzrf5D8A_w4ms_Q.min.js | 400ms | 314ms | 28ms | 3rd |
| https://www.verywellhealth.com/static/8.218.0/cache/eNqlU0Fi4yAM_NCyPKLX_YRsZKysgBSE3fT1FU7TTYnjHvaEkGbEMAhbBIRGGyAKoz0VGzQwC0RiBlPGnJh_2e-oMYVzihilWIqCOQJbhxPmxt-CjK4nMQ2l1U-vFfOlr2qhCjEJYTFDJRazksymQytsLHnq0yG5yljuhUl-MzBN2hIEjYD3mPssU_xrMq6Z5Kpd-QHziEe4AzPw7WoGvV85230fkv_dwKjFUNWhM1dP8cEF5TC8Xwy4g6NWch51nZH8LC8zRI9_qAhGtWIv-dXrronnNOjbzwhuY7VlDxdhIa_JFO1UmXWqEKPRbLd9NjMDp-TmVKPbmZsFo0vZQpXUjmQU3NMwpRzaC0dHTYgpCHmcHxLPqb65AHwjft8ejSK4GQstm9hb_IW_XXGpB6ojrkXvpXNgFNdtj35nAL8d62k6UriQw2RO65nh0n7CZ_DsObj8HnxB2RMc0BF8NmxdWMen2_4wIcDnGQZUgLrbZqRP_MD3mdzGuwUPXuNiMJDcf-Z_JW1H-AF-ePRH.min.js | 325ms | 216ms | 57ms | 3rd |
Showing top 10 of 13 scripts
FJS BundlesAction15 scripts, 543 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 129 KB (69%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otBannerSdk.js | 124 KB | 74 KB (60%) | ✓ | 3rd |
| https://www.verywellhealth.com/static/8.218.0/cache/eNqlU0Fi4yAM_NCyPKLX_YRsZKysgBSE3fT1FU7TTYnjHvaEkGbEMAhbBIRGGyAKoz0VGzQwC0RiBlPGnJh_2e-oMYVzihilWIqCOQJbhxPmxt-CjK4nMQ2l1U-vFfOlr2qhCjEJYTFDJRazksymQytsLHnq0yG5yljuhUl-MzBN2hIEjYD3mPssU_xrMq6Z5Kpd-QHziEe4AzPw7WoGvV85230fkv_dwKjFUNWhM1dP8cEF5TC8Xwy4g6NWch51nZH8LC8zRI9_qAhGtWIv-dXrronnNOjbzwhuY7VlDxdhIa_JFO1UmXWqEKPRbLd9NjMDp-TmVKPbmZsFo0vZQpXUjmQU3NMwpRzaC0dHTYgpCHmcHxLPqb65AHwjft8ejSK4GQstm9hb_IW_XXGpB6ojrkXvpXNgFNdtj35nAL8d62k6UriQw2RO65nh0n7CZ_DsObj8HnxB2RMc0BF8NmxdWMen2_4wIcDnGQZUgLrbZqRP_MD3mdzGuwUPXuNiMJDcf-Z_JW1H-AF-ePRH.min.js | 101 KB | 66 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-XMRMNPB3BJ&cx=c>m=4e64h1h1 | 166 KB | 65 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64h1h1 | 123 KB | 61 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64h1h1 | 151 KB | 60 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 139 KB | 57 KB (41%) | ✓ | 3rd |
| https://www.verywellhealth.com/static/8.218.0/cache/eNp9lFFugzAMhi-0jDNs07SnStXWC5hgICPEKHao2tMvoK0F5vIQlOT74zi_EwoWEGeLHoJ4LL65kAgWn4r1vKV-oIBBuPBwoSST8puNbdF2W3FGnqDCSgGWqHPICknivBOd1cHs4Yr6XT4dqXOh2RWNGCqKhbSRJE89CIMGKn7I7HlUWJ87powI3UAuW3iTZNYieGl3E_NwvbC7YnabQu2arcS7kte6vAlGRiuOwk4lLcd6_mg5w6XUPBigQTM6PO_EbaSfS-2d7cyf91qsVHIq74Cq5HE-yufpdWqP0Bwzd95HXNq5UEH1a5aBwa1HSiJvh6MWRCnKcocDSnSWT1MyGFVNmktgak8Ut0NtwZcn_Twfx9PUNCQQG5TpdjPU6B2LpmK7vrh3EjG7mPC0rdOioHnlpGwG0QPUEbmF0uPL_7dxu538nMKIzrf5D8A_w4ms_Q.min.js | 46 KB | 31 KB (67%) | ✓ | 3rd |
| https://d30qdagvt44524.cloudfront.net/production/segments?muid=cccb97ef-754b-40ab-906d-0965da63551c | 0 KB | — | ✓ | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 | 7 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 InventoryAction45 resources · 1.8 MB · 543 KB savings availableFIX
~542.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 45 resources | 1.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.8 MB transferred, 45 requestsREVIEW
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
A+Text CompressionAll text resources are compressedPASS
AImage Optimization13 images, 0 KB saveablePASS
A+Font Loading2 fonts (62 KB)PASS
Web fonts
2
62 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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)
Fixing the unchecked items could save ~13 KB and ~26 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall45 requests over 2534msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.verywellhealth.com www.verywellhealth.com | Other | 1040ms | 75 KB | — | $14/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 853ms | 22 KB | — | $11/mo | Essential |
Unattributable Unattributable | Other | 686ms | 0 KB | — | $9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 494ms | 166 KB | 39% | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 482ms | 139 KB | 41% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 478ms | 151 KB | 40% | $6/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 453ms | 188 KB | 69% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 403ms | 123 KB | 50% | $5/mo | Costly |
www.verywellhealth.com www.verywellhealth.com | Other | 400ms | 46 KB | 67% | $5/mo | Costly |
www.verywellhealth.com www.verywellhealth.com | Other | 325ms | 101 KB | 65% | $4/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 241ms | 124 KB | 60% | $3/mo | Essential |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 131ms | 34 KB | — | $2/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 119ms | 9 KB | — | $2/mo | Essential |
These scripts may cost more than they're worth
- www.verywellhealth.com adds 1040ms and costs ~$14/month
- Unattributable adds 686ms and costs ~$9/month
- Google Tag Manager adds 494ms and costs ~$7/month
- Google Tag Manager adds 482ms and costs ~$6/month
- Google Tag Manager adds 478ms and costs ~$6/month
- securepubads.g.doubleclick.net adds 453ms and costs ~$6/month
- Google Tag Manager adds 403ms and costs ~$5/month
- www.verywellhealth.com adds 400ms and costs ~$5/month
- www.verywellhealth.com adds 325ms 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
www.verywellhealth.com takes 1040ms 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 686ms 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
Google Tag Manager takes 494ms 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
Google Tag Manager takes 482ms 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
Google Tag Manager takes 478ms 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 453ms 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
Google Tag Manager takes 403ms 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.verywellhealth.com 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
67% of www.verywellhealth.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.verywellhealth.com takes 325ms 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
65% of www.verywellhealth.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
60% of OneTrust'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