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Gridlode
Rank #783Updated November 10, 2026

heart.org

heart.org is registered with MarkMonitor Inc. since January 12, 1995 (31.8 years). The registration expires on March 21, 2033. The site runs on ASP.NET, Cloudflare Web Analytics, Azure Front Door and 9 other technologies. Its email security grade is B. Its SSL certificate is issued by Google Trust Services and is valid for 79 more days.

Domain age
31.8 yrs
Technologies
12
Email security
B
SSL days left
79

Registration

RegistrarMarkMonitor Inc.
IANA ID292
RegisteredJanuary 12, 1995
ExpiresMarch 21, 2033
UpdatedOctober 30, 2026
Statusclient delete prohibited, server delete prohibited, client transfer prohibited, server transfer prohibited, client update prohibited, server update prohibited
Name serversns1.heart.org, ns2.heart.org, ns3.heart.org
DNSSECNot signed

DNS records

TypeValueTTL
A104.18.26.1583600
A104.18.27.1583600
MXmxa-004ad404.gslb.pphosted.com 10300
MXmxb-004ad404.gslb.pphosted.com 10300
NSns3.heart.org3600
NSns1.heart.org3600
NSns2.heart.org3600
TXTpardot_367141_*=3282f7e18b8fb276c10484d6e64943069e1bf4b644c5a45ee2a1ac1179563b7060
TXTamazonses:VfiqZkP9hhG7win/TuoC8MhmBZUJIbafUqyg/Ri35ds=60
TXTamazonses:3PjxBfH8x2mjt00HCfj3yreBMgunFmcMdITdJHaJMsw=60
TXT2013hywoiu9839t543j0s7543uw160
TXTsmartsheet-site-validation=NBYCJH_FAkfczv0NWHYCz23BupfUqiP160
TXTonetrust-domain-verification=a10e41a3f7374ac8bbd077607bc1d2a860
TXTpardot788973=573c3698502c38becff7f68e601b25dde1ae6a5c4e13567f8b61ac1f1114e93f60
TXTeT43WZq3lX0x1cYG1yhc7ovUHMMImOHjqLkhYBrBSEJik9/mik/Yh6DZYIRfV2ntkQocksPYXOF5w59/AE/EcQ==60
TXTzapier-domain-verification-challenge=1d357551-81ba-440c-b06d-ba69803b1aa760
TXT91304c6a8883069f8782dae2cb90a46df779c79bf757f98f827a4ebdce2dcfac60
TXTasv=df7641ed9e80a58c5c3bdd02c0c3025d60
TXTgoogle-site-verification=jLdtJKzWFGlXOGUizOFYYy4y1Mq3lXhIXYMxmQYR7s460

Technology stack

Analytics and advertising IDs

google_tag_manager:GTM-PRLD9XQ

SSL certificate

ValidValid
IssuerUS, WE1, Google Trust Services
ExpiresJanuary 28, 2027
Days remaining79
ProtocolTLSv1.3
Namesheart.org, *.heart.org

Email security

BScore 85/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is reject: mail that fails authentication is blocked.
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • goodDKIM keys found (selector: selector1, s1, s2).
  • good2 MX record(s) found. Mail is handled by Proofpoint.

About heart.org

Who is the registrar of heart.org?

heart.org is registered with MarkMonitor Inc. (IANA ID 292).

When does heart.org expire?

The current registration of heart.org expires on March 21, 2033. It was first registered on January 12, 1995.

What technology does heart.org use?

We detected 12 technologies on heart.org, including Cloudflare Web Analytics, Azure Front Door, Cloudflare, jsDelivr, Google Fonts, jQuery.

Does heart.org protect its email with SPF and DMARC?

heart.org scores 85/100 (grade B) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.

What are the name servers of heart.org?

heart.org uses ns3.heart.org, ns1.heart.org, ns2.heart.org.