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.
1.07 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.64 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
326 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.
1.86 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.
3.21 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
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/m202604200101/pubads_impl.js?cb=31097964 | 188 KB | 128 KB (68%) | ✓ | 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/eNqlU0uC2yAMvVAph-i2l5CNjJUKSEHYyZy-wpnMZIjjWXSFfk9IT5ItAkKjDRCF0Z6KDSqYBSIxgyljTsw_7NeoMYVzihilWIqCOQJbhxPmht-EjK4HMQ2l-U9_K-Zr71VHFWISwmKGSixmJZlNF61hY8lTbw7JVcbyWJjki4Fp0pQgaAS8x9xbmeIfk3HNJLfaFR8wj3gUd0AGXm5k0NsNs_X7ZPzvBEYphqoMnbl6ik8sKIbh7WrAHXy1kvOo74zkZ_k1Q_T4m4pgVCr2jB-5HpJ4ToPOfkZwG6o9e3ERFvJqTNFOlVm3CjEatXbqq50ZOCU3pxrdzt4sGF3KFqqk9iWj4F4NU8qhTTg6aoWYgpDH-cnwGuobC8B34Fd1bwjtdGCFwzUdoGxNTIwXGhgfh3bvfqkHDUVci7asK2I0rlOPDjeA3372NB0VuJDDZE7rmeHajuRdeDUpLj8HX1D2Cg7oCN4Ttiysm9Wp3ywP8HmGATVAiW_r0xu-wftMbsPdhSeucTEYSB7v_NOl6Qj_ATcv_j4.min.js | 102 KB | 66 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-XMRMNPB3BJ&cx=c>m=4e64k0h2 | 166 KB | 65 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64k0h2 | 123 KB | 61 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0h2 | 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=ddaf0b48-e3fe-47cb-9450-4f2e455015a5 | 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 InventoryAction61 resources · 1.8 MB · 543 KB savings availableFIX
~543.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 61 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, 61 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
BImage Optimization28 images, 0 KB saveableREVIEW
CJS Execution CostAction1486ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.verywellhealth.com/ | 206ms | 36ms | 10ms | 3rd |
| Unattributable | 202ms | 5ms | 0ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otGPP.js | 200ms | 181ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 167ms | 128ms | 24ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0h2 | 146ms | 110ms | 21ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-XMRMNPB3BJ&cx=c>m=4e64k0h2 | 129ms | 106ms | 22ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 | 127ms | 92ms | 31ms | 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 | 118ms | 69ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64k0h2 | 79ms | 61ms | 16ms | 3rd |
| https://www.verywellhealth.com/static/8.218.0/cache/eNqlU0uC2yAMvVAph-i2l5CNjJUKSEHYyZy-wpnMZIjjWXSFfk9IT5ItAkKjDRCF0Z6KDSqYBSIxgyljTsw_7NeoMYVzihilWIqCOQJbhxPmht-EjK4HMQ2l-U9_K-Zr71VHFWISwmKGSixmJZlNF61hY8lTbw7JVcbyWJjki4Fp0pQgaAS8x9xbmeIfk3HNJLfaFR8wj3gUd0AGXm5k0NsNs_X7ZPzvBEYphqoMnbl6ik8sKIbh7WrAHXy1kvOo74zkZ_k1Q_T4m4pgVCr2jB-5HpJ4ToPOfkZwG6o9e3ERFvJqTNFOlVm3CjEatXbqq50ZOCU3pxrdzt4sGF3KFqqk9iWj4F4NU8qhTTg6aoWYgpDH-cnwGuobC8B34Fd1bwjtdGCFwzUdoGxNTIwXGhgfh3bvfqkHDUVci7asK2I0rlOPDjeA3372NB0VuJDDZE7rmeHajuRdeDUpLj8HX1D2Cg7oCN4Ttiysm9Wp3ywP8HmGATVAiW_r0xu-wftMbsPdhSeucTEYSB7v_NOl6Qj_ATcv_j4.min.js | 58ms | 42ms | 11ms | 3rd |
Showing top 10 of 11 scripts
A+Text CompressionAll text resources are compressedPASS
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+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall61 requests over 2480msINFO
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 | 206ms | 55 KB | — | $3/mo | Costly |
Unattributable Unattributable | Other | 202ms | 0 KB | — | $3/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 200ms | 22 KB | — | $3/mo | Essential |
Google Tag Manager www.googletagmanager.com | Tag Manager | 167ms | 139 KB | 41% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 146ms | 151 KB | 40% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 129ms | 166 KB | 39% | $2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 127ms | 188 KB | 68% | $2/mo | Optional |
www.verywellhealth.com www.verywellhealth.com | Other | 118ms | 46 KB | 67% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 79ms | 123 KB | 50% | $1/mo | Optional |
www.verywellhealth.com www.verywellhealth.com | Other | 58ms | 102 KB | 65% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 53ms | 124 KB | 60% | $1/mo | Essential |
These scripts may cost more than they're worth
- www.verywellhealth.com adds 206ms and costs ~$3/month
- Unattributable adds 202ms 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.verywellhealth.com takes 206ms 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 202ms 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
68% 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
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
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