heart.org website report
Authority, global rank, the websites that link to heart.org, when it was registered and where it's hosted – free, from public data.
authority
global rank of 133,241,980
websites link to it
domain age
How strong is heart.org?
heart.org has an XKey authority of 66 out of 100, which makes it a very strong website. It ranks #629 of 133,241,980 websites by how central it is to the web's links – the top 0.01%. 54,617 different websites link to it.
Authority comes from Common Crawl's map of links between websites (July–September 2026): a site linked from many well-linked sites scores high. Google doesn't use this number, but it tracks the kind of link strength that helps pages rank. What is domain authority?
Which websites link to heart.org?
The 50 strongest websites linking to heart.org, by link strength (0–100). Select any one to see its own report.
| # | Website linking to it | Link strength |
|---|---|---|
| 1 | googleapis.com | 100 |
| 2 | google.com | 99 |
| 3 | apple.com | 88 |
| 4 | wikipedia.org | 88 |
| 5 | europa.eu | 84 |
| 6 | amazon.com | 84 |
| 7 | cloudfront.net | 84 |
| 8 | amazonaws.com | 83 |
| 9 | t.me | 83 |
| 10 | blogspot.com | 82 |
| 11 | squarespace.com | 82 |
| 12 | bit.ly | 81 |
| 13 | nih.gov | 80 |
| 14 | adobe.com | 80 |
| 15 | github.io | 78 |
| 16 | weebly.com | 78 |
| 17 | medium.com | 78 |
| 18 | wikimedia.org | 77 |
| 19 | wixsite.com | 76 |
| 20 | cdc.gov | 76 |
| 21 | linktr.ee | 75 |
| 22 | harvard.edu | 75 |
| 23 | substack.com | 75 |
| 24 | bund.de | 74 |
| 25 | jotform.com | 74 |
| 26 | outlook.com | 74 |
| 27 | tinyurl.com | 74 |
| 28 | nature.com | 74 |
| 29 | wiley.com | 74 |
| 30 | bing.com | 74 |
| 31 | myshopify.com | 73 |
| 32 | ca.gov | 73 |
| 33 | businessinsider.com | 73 |
| 34 | mit.edu | 72 |
| 35 | stanford.edu | 72 |
| 36 | imgur.com | 72 |
| 37 | mayoclinic.org | 72 |
| 38 | mail.ru | 72 |
| 39 | time.com | 72 |
| 40 | epa.gov | 71 |
| 41 | prnewswire.com | 71 |
| 42 | usda.gov | 71 |
| 43 | mckinsey.com | 71 |
| 44 | psychologytoday.com | 71 |
| 45 | fda.gov | 71 |
| 46 | twitch.tv | 71 |
| 47 | nasa.gov | 71 |
| 48 | cbsnews.com | 71 |
| 49 | ted.com | 71 |
| 50 | mdpi.com | 71 |
Showing the strongest 50 of 54,617. Compare heart.org with a competitor in the backlink checker.
When was heart.org registered?
heart.org was registered on 12 January 1995 through MarkMonitor Inc., and is paid up until 20 March 2033.
| Registered | 12 January 1995 |
|---|---|
| Expires | 20 March 2033 |
| Last updated | 29 October 2026 |
| Registrar | MarkMonitor Inc. |
| Name servers | ns1.heart.org, ns2.heart.org, ns3.heart.org |
Straight from the domain registry. Owners' personal details are hidden by law, so to reach the owner use the website's own contact page or the registrar. Full record: WHOIS lookup.
Where is heart.org hosted, and what is it built with?
We check the live website when you ask, so this page stays fast.
More free checks for heart.org
- Full SEO check – about 50 checks for Google and AI search
- SSL checker – certificate and https
- DNS lookup and MX lookup
- Hosting checker and technology checker
- Domain age checker for up to 100 sites at once
Link data: Common Crawl web graph, July–September 2026. Registration data: the domain registry, checked 1 November 2026. Look up another website on the website report page.