marrow.org

Marrow.org

About the National Marrow Donor Program The National Marrow Donor Program (NMDP) helps people who need a life-saving marrow or blood cell transplant.

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Authority

80/100

Safety

90/100

Registered

Aug 25, 1995

31 years old · Network Solutions, LLC

4 of 5 safety checks passed (Sep 9, 2026).

AboutUs has not vetted this site. 1 of 5 automated safety check did not pass. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.

Current facts

What AboutUs observed on the live site and in WHOIS/DNS today. These are measurements, not an endorsement of the site.

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Domain registered Aug 25, 1995 — 31 years old.

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Registrar today: Network Solutions, LLC — unchanged since AboutUs began tracking (Sep 4, 2026).

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Live site responds over HTTPS.

Trust record

Authority & Safety, with the evidence

How this is scored →

Authority 80/100 — ahead of 80% of scored sitesClear

Why this authority score

Prominence (Tranco rank #459,220; Open PageRank 3.4/10)+9
Verified continuity: 30.9 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+18

Every point maps to a sentence. These lines sum to the model score of 41/99, which is what places this site at 80/100 against every other scored site.

Safety evidence

Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date.

1995
Domain registered (Aug 25, 1995).
2026
Checked today — 4 of 5 safety checks passed (Sep 9, 2026).

✓ domain continuity 31 years registered✓ live verified Sep 9, 2026

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