nrdc.org
Observed 2026-07-12T16:30:36.685Z (16h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byProofpoint
Also usesDocuSignGoogle Search Console
2 subdomains · non_profit
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nrdc.org actually stands on - every host below is a signed observation
nrdc.org
A / AAAA
172.104.26.72
Cloudflareserves the site
NS
ns1-02.azure-dns.comns3-02.azure-dns.orgns4-02.azure-dns.infons2-02.azure-dns.net
azure-dns.com + azure-dns.org + moreanswers its DNS
MX
mxb-0030d801.gslb.pphosted.commxa-0030d801.gslb.pphosted.com
Proofpointreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.nrdc.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time113 ms
DNS resolutionNOERROR
Redirect chain
https://www.nrdc.org/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
172.104.26.72
MX 2
10mxb-0030d801.gslb.pphosted.com10mxa-0030d801.gslb.pphosted.com
TXT 10
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~allciscocidomainverification=616ed4ff71808abf72d6167da65a9e3df85155f6d1101adf7360fec0883883d2docusign=64d531ea-6334-42a0-9208-bbf4a8b0bf9agoogle-site-verification=zrhr9nQnHuMhostFkDekqBzebjI3L_0x7hcKLpbs0kwpexip-ms-tenant-domain-verification=dc2c0cca-0666-451f-bbe0-001aa984617dgoogle-site-verification=gc_l4pkaXkT_GbFvYvA2z1TQs1LgMFaPFdJP-bqdfrYapple-domain-verification=8MFTcrXRWQIWYOigg5/aA3/CpAYFd1PtcJMCh+/M0fex9tqF9UxJv7TMt608PM6c8Y+wTpd58rJxPvN50X4WpYSC7j1pl6uEGNgD2Q==795981589-23226688v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
NS 4
ns1-02.azure-dns.comns3-02.azure-dns.orgns4-02.azure-dns.infons2-02.azure-dns.net
SOA 1
ns1-02.azure-dns.com azuredns-hostmaster.microsoft.com
TLS Certificates (0)
None.
Subdomains (2)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
66ca4da6-7b3c-40fc-9fc8-713a84d2e8c9- Output Hash
74e28242be081137f8ad4bdd1b40f042ab537a66ca2b56730035bf54e06ddb00- Signature
ed25519:047a5564bdad6268695d374138c68a1c91e47a02ce323d0b05a14baaab82bfcf199112a3a469a006763c4e80d447b9e11960fbc3fd2fa97c53650afbedf2ba0b- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast