mail.ut-tek.com - robtex.com

mail.ut-tek.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:aa6e🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:1c55🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.85Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.110🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.85, 172.67.170.110
IPv6 hints2606:4700:3032::ac43:aa6e, 2606:4700:3034::6815:1c55
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com

ut-tek.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:aa6e🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:1c55🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.85Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.110🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdan.ns.cloudflare.com ⭐
NSlisa.ns.cloudflare.com
MXuttek-com0e.mail.protection.outlook.com ⭐
TXTMS=ms82320278
TXTv=spf1 mx include:spf.protection.outlook.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.85, 172.67.170.110
IPv6 hints2606:4700:3032::ac43:aa6e, 2606:4700:3034::6815:1c55
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAdan.ns.cloudflare.comdns@cloudflare.com serial=2409103830

Previously MX for

ut-tek.com

Same first word

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DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026A104.21.28.85172.67.170.1102606:4700:3032::ac43:aa6e2606:4700:3034::6815:1c55123.254.111.190192.99.205.227CNAMEmail.ultimate-thinking.com
●A104.21.28.852026-07-13 → 2026-07-13 · 3 obs
○ 2016-04-13 08:31:10
● 2026-07-13 05:42:04
● 2026-07-13 05:42:06
○A123.254.111.1902015-06-22 → 2015-06-22 · 3 obs
● 2015-06-22 01:45:08
○ 2026-07-13 05:42:04
○ 2026-07-13 05:42:06
●A172.67.170.1102026-07-13 → 2026-07-13 · 3 obs
○ 2016-04-13 08:31:10
● 2026-07-13 05:42:04
● 2026-07-13 05:42:06
○A192.99.205.2272015-06-22 → 2016-04-13 · 4 obs
● 2015-06-22 01:45:08
● 2016-04-13 08:31:10
○ 2026-07-13 05:42:04
○ 2026-07-13 05:42:06
●A2606:4700:3032::ac43:aa6e2026-07-13 → 2026-07-13 · 3 obs
○ 2016-04-13 08:31:10
● 2026-07-13 05:42:04
● 2026-07-13 05:42:06
●A2606:4700:3034::6815:1c552026-07-13 → 2026-07-13 · 3 obs
○ 2016-04-13 08:31:10
● 2026-07-13 05:42:04
● 2026-07-13 05:42:06
○CNAMEmail.ultimate-thinking.com2026-07-13 → 2026-07-13 · 2 obs
○ 2026-07-13 05:42:04
○ 2026-07-13 05:42:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...-
ut-tek.comdan.ns.cloudflare.com, lisa.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.131

NS records: dan.ns.cloudflare.com, lisa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ut-tek.com (unsigned zone)

⏱️ Timing

Total: 467ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.28.85, 172.67.170.110
AAAA22606:4700:3032::ac43:aa6e, 2606:4700:3034::6815:1c55
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.ut-tek.com resolves to four IP addresses: 104.21.28.85, 172.67.170.110, 2606:4700:3032::ac43:aa6e and 2606:4700:3034::6815:1c55.

Additional host names — multi.ecardwidget.com, librairie-arthaud.fr, rzhsysc.com and two others — share IP numbers with mail.ut-tek.com.