doi.org
Observed 2026-07-18T04:28:01.001Z (6h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byZoho Mail
Registered withCloudflare, Inc.
IPv6 · 3 subdomains · tranco_1k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat doi.org actually stands on - every host below is a signed observation
doi.org
A / AAAA
104.26.4.132104.26.5.132172.67.69.32606:4700:20::ac43:4503+2 more
Cloudflareserves the site
NS
josh.ns.cloudflare.comzita.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mx3.zoho.eumx2.zoho.eumx.zoho.eu
Zoho Mailreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.doi.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time24 ms
DNS resolutionNOERROR
Redirect chain
https://www.doi.org/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 3
104.26.4.132104.26.5.132172.67.69.3
AAAA 3
2606:4700:20::ac43:45032606:4700:20::681a:4842606:4700:20::681a:584
MX 3
50mx3.zoho.eu20mx2.zoho.eu10mx.zoho.eu
TXT 4
zoho-verification=zb37490279.zmverify.zoho.euv=spf1 include:zohomail.eu include:cnri.net include:amazonses.com ~allv=DMARC1; p=quarantine; pct=100; rua=mailto:4346ea155d494c77bb5cb3dfcf540754@dmarc-reports.cloudflare.net; sp=quarantine;aspf=r;adkim=r;ri=86400v=DNSSEC1; (detected)
NS 2
josh.ns.cloudflare.comzita.ns.cloudflare.com
SOA 1
josh.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (0)
None.
Subdomains (3)
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
abbce837-a3fa-4abd-a9fd-71b711c49ae1- Output Hash
66ac6644857de6882933bdc106fdcf3f9092fac17e518ab99e42432d706507e9- Signature
ed25519:53bd76a9e2c57132040bf78699af86542de950127b78c0d89d15c8d1001305ff95fdd540450d3cc2eefdbbeec00c3cc276da95db1455cb8fae78e3f70a030707- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast