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Domain report

heartmath.org

heartmath.org ranks in the top 0.018% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 10 distinct hosts observed under it.

Explore heartmath.org in the Web Graph

Connectivity

#23,593harmonic-centrality rank
Top percentile
0.018%
Hosts observed
10

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://heartmath.org/ answered with HTTP 200.

DNS records

A
  • 104.26.2.145
  • 104.26.3.145
  • 172.67.68.62
AAAA
  • 2606:4700:20::681a:291
  • 2606:4700:20::681a:391
  • 2606:4700:20::ac43:443e
MX
  • 10 us-smtp-inbound-1.mimecast.com.
  • 10 us-smtp-inbound-2.mimecast.com.
NS
  • algin.ns.cloudflare.com.
  • melinda.ns.cloudflare.com.

Live preview

Screenshot of heartmath.org

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since heartmath.org can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=UTF-8
Cache-Control
max-age=86400, stale-while-revalidate=3600, public
Content-Encoding
Not sent

Security

Content-Security-Policy
frame-ancestors 'self' https://heartmath.org https://*.heartmath.org https://*.na3.netsuite.com https://*.facebook.com https://*.pardot.com http://heartmath.org.local http://heartmath.org.localhost
Strict-Transport-Security
max-age=63072000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
accelerometer=(), autoplay=(*), camera=(), encrypted-media=(), fullscreen=(self), geolocation=(self), gyroscope=(), magnetometer=(), microphone=(), midi=(), usb=()

What each security header does

Redirect chain

  1. 1.http://heartmath.org/HTTP 301

    → https://www.heartmath.org/

  2. 2.https://www.heartmath.org/HTTP 200

Meta tags

Title
HeartMath Institute
Description
HeartMath Institute is a 501(c)(3) nonprofit organization and has developed reliable, scientifically validated tools since 1991 to help people reduce and avoid stress while experiencing increased peace, satisfaction and enjoyment. Research at the HeartMath Institute shows that, adding heart to our daily activities and connections produces measurable benefits to our own and others' well-being.
Canonical
https://www.heartmath.org/
Robots
index, follow
Generator
Not set
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
Not set
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
0

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • WordPresscms

    Found "wp-includes/" in the page's HTML

  • Google Analyticsanalytics

    Found "www.google-analytics.com" in the page's HTML

  • Google Tag Manageranalytics

    Found "googletagmanager.com/gtm.js" in the page's HTML

  • HubSpotanalytics

    Found "js.hs-scripts.com" in the page's HTML

  • PHPother

    Cookie set: PHPSESSID

Related domains

Similar connectivity

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