du.edu
Observed 2026-07-14T08:58:31.951Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byProofpoint
Also usesGoogle Search ConsoleFacebook/MetaDocuSign
IPv6 · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat du.edu actually stands on - every host below is a signed observation
du.edu
A / AAAA
23.185.0.12620:12a:8000::12620:12a:8001::1
Cloudflareserves the site
NS
ns3.p201.dns.oraclecloud.netns2.p201.dns.oraclecloud.netns1.p201.dns.oraclecloud.netns4.p201.dns.oraclecloud.net
oraclecloud.netanswers its DNS
MX
mxb-00241a02.gslb.pphosted.commxa-00241a02.gslb.pphosted.com
Proofpointreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.du.edu/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time34 ms
DNS resolutionNOERROR
Redirect chain
https://www.du.edu/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8000::12620:12a:8001::1
MX 2
10mxb-00241a02.gslb.pphosted.com10mxa-00241a02.gslb.pphosted.com
TXT 27
intersight=42d79a3618a8843e27174d6405d1c1effacecef29f248ec259a1133d043b5c5agoogle-site-verification=BEXpZiSjkKq5DyMW_NJO4HJozpNKhd-RFoZ1SU2AlZ03uell7slaqp2luvba6no4mq9ahfacebook-domain-verification=4o143ljo7p1bpjzt0vsxrqalpvrmiqadobe-idp-site-verification=fcc78d68a8825dbfa9937ca2e8cbb9823ad970f9a896ffe042d05f46d9af86f0asv=4d037429df1c38a629a2c2c1e9d75714MS=ms18061669v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.comautodesk-domain-verification=T1ZbSb-RI16TMKr4rKqI
NS 4
ns3.p201.dns.oraclecloud.netns2.p201.dns.oraclecloud.netns1.p201.dns.oraclecloud.netns4.p201.dns.oraclecloud.net
SOA 1
nsipsvc03-vwp.du.edu info-dns.du.edu
TLS Certificates (0)
None.
Subdomains (13)
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
b021da4a-0e62-4cbb-952d-783d033b9bb5- Output Hash
bf457973851bcb0dc4d233b381631af4e2983b3b853fa00f8bd13d88431916d3- Signature
ed25519:fc6c1178ded25c4e405eec72dbb4c1d7ce23a475671887032464300640ddfa9942959a7952b4fd7f8eb7b5628774a2149d4fe1ac3ebda9957d1d859de804f003- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast