mail.umdstudents.com - robtex.com

mail.umdstudents.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:8e1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:9e14🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.225Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.20🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.8.225, 172.67.158.20
IPv6 hints2606:4700:3031::6815:8e1, 2606:4700:3034::ac43:9e14
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com

umdstudents.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:8e1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:9e14🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.225Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.20🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnorman.ns.cloudflare.com ⭐
NStia.ns.cloudflare.com
MXroute1.mx.cloudflare.net ⭐
MXroute2.mx.cloudflare.net(31)
MXroute3.mx.cloudflare.net(94)
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.8.225, 172.67.158.20
IPv6 hints2606:4700:3031::6815:8e1, 2606:4700:3034::ac43:9e14
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com
SOAnorman.ns.cloudflare.comdns@cloudflare.com serial=2402411612
WOT: SAFE (61/100)

Previously MX for

www.umdstudents.com
umdstudents.com

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DNS History

4 records (4 active, 0 former)

A104.21.8.225172.67.158.202606:4700:3031::6815:8e12606:4700:3034::ac43:9e14
●A104.21.8.2252026-04-28 → 2026-04-28 · 2 obs
● 2026-04-28 04:47:14
● 2026-04-28 04:47:16
●A172.67.158.202026-04-28 → 2026-04-28 · 2 obs
● 2026-04-28 04:47:14
● 2026-04-28 04:47:16
●A2606:4700:3031::6815:8e12026-04-28 → 2026-04-28 · 2 obs
● 2026-04-28 04:47:14
● 2026-04-28 04:47:16
●A2606:4700:3034::ac43:9e142026-04-28 → 2026-04-28 · 2 obs
● 2026-04-28 04:47:14
● 2026-04-28 04:47:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net...-
umdstudents.comtia.ns.cloudflare.com, norman.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.229

NS records: tia.ns.cloudflare.com, norman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for umdstudents.com (unsigned zone)

⏱️ Timing

Total: 94ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.8.225, 172.67.158.20
AAAA22606:4700:3031::6815:8e1, 2606:4700:3034::ac43:9e14
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (tia.ns.cloudflare.com, tia.ns.cloudflare.com, tia.ns.cloudflare.com...)

Analysis

IP Addresses

mail.umdstudents.com points to four IP numbers: 2606:4700:3031::6815:8e1, 2606:4700:3034::ac43:9e14, 104.21.8.225 and 172.67.158.20.

Other host names, for instance glassproxy.com, www.gjyqesori-rks.org, fehocaxiusanalytics.click, kanjuruhan.com and thedacs.com share IP numbers with mail.umdstudents.com.