kidshealth.org

Readiness by lane

Green: kidshealth.org. Thin bar: Fitness & Health peer median.

Priority fixes for kidshealth.org

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Accelerate

   Modern image formats in use

   Observed: The homepage had 9 images and none used WebP or AVIF.

   Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.

   What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

   On Cloudflare: Cloudflare Polish can convert images to WebP.

   45% of Fitness & Health peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

2. Priority 2 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 6 external scripts without async or defer.

   What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.

   45% of Fitness & Health peers do this.

   Guide: Control Third-Party Scripts Before They Control Your Page

3. Priority 3 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 9 images and none used loading="lazy".

   What to do: Add loading="lazy" to images below the fold. Do not lazy-load the main hero image, because that delays the largest visible element.

   68% of Fitness & Health peers do this.

   Guide: Lazy Loading Without Broken Pages

4. Priority 4 · Accelerate

   HTTP/3 advertised

   Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.

   What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.

   On Cloudflare: Enable HTTP/3 (with QUIC) under Speed > Optimization > Protocol Optimization.

   29% of Fitness & Health peers do this.

   Guide: CDN Guide for Website Owners

What kidshealth.org already does well

Practices fewer than half of Fitness & Health peers use.

• Reachable over IPv6IPv6 address published.36% of peers
• Content Security Policy presentContent-Security-Policy present.38% of peers
• HSTS kept for at least a yearHSTS with a 730-day max-age covering subdomains.43% of peers

What we saw

Homepage checked

https://kidshealth.org/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-16

CDN or edge

Cloudflare

Platform or framework

Adobe Experience Manager

DNS operators

Cloudflare

HSTS

max-age 730 days, includeSubDomains, preload

DMARC policy

p=reject

Homepage HTML

45 KB, gzip

Images on homepage

9 (svg 6, png 3)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Compare with other Fitness & Health sites

• beastlife.in77
• bebodywise.com77
• blackgirlvitamins.co77
• netmeds.com77
• prevention.com77

Fitness & Health readiness benchmark