mail.seijsener.com - robtex.com

mail.seijsener.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:c629🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:420c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.12Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.41🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.66.12, 172.67.198.41
IPv6 hints2606:4700:3031::ac43:c629, 2606:4700:3033::6815:420c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com

seijsener.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:c629🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:420c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.12Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.41🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdonovan.ns.cloudflare.com ⭐
NSvirginia.ns.cloudflare.com
MXseijsener-com.mail.protection.outlook.com ⭐
TXTv=spf1 ip4:195.20.9.21 include:spf.protection.outlook.com include:spf.eu.excl...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.66.12, 172.67.198.41
IPv6 hints2606:4700:3031::ac43:c629, 2606:4700:3033::6815:420c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com
SOAdonovan.ns.cloudflare.comdns@cloudflare.com serial=2403287187

Previously MX for

seijsener.com

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026A104.21.66.12172.67.198.412606:4700:3031::ac43:c6292606:4700:3033::6815:420c185.104.29.130213.222.25.54
●A104.21.66.122026-05-12 → 2026-05-13 · 3 obs
○ 2016-04-24 21:48:08
● 2026-05-12 20:19:40
● 2026-05-13 14:24:30
●A172.67.198.412026-05-12 → 2026-05-13 · 3 obs
○ 2016-04-24 21:48:08
● 2026-05-12 20:19:40
● 2026-05-13 14:24:30
○A185.104.29.1302026-05-12 → 2026-05-13 · 2 obs
○ 2026-05-12 20:19:40
○ 2026-05-13 14:24:30
○A213.222.25.542015-07-12 → 2016-04-24 · 4 obs
● 2015-07-12 23:39:40
● 2016-04-24 21:48:08
○ 2026-05-12 20:19:40
○ 2026-05-13 14:24:30
●A2606:4700:3031::ac43:c6292026-05-12 → 2026-05-13 · 3 obs
○ 2016-04-24 21:48:08
● 2026-05-12 20:19:40
● 2026-05-13 14:24:30
●A2606:4700:3033::6815:420c2026-05-12 → 2026-05-13 · 3 obs
○ 2016-04-24 21:48:08
● 2026-05-12 20:19:40
● 2026-05-13 14:24:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net...-
seijsener.comvirginia.ns.cloudflare.com, donovan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.114

NS records: virginia.ns.cloudflare.com, donovan.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 437ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.198.41, 104.21.66.12
AAAA22606:4700:3033::6815:420c, 2606:4700:3031::ac43:c629
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.seijsener.com refers to four IP numbers: 2606:4700:3031::ac43:c629, 2606:4700:3033::6815:420c, 104.21.66.12 and 172.67.198.41.

Other host names, for instance missav.lkj954.com, cmsteleconference.com, archcircuitry.site, eightiesvintagestyle.com and jzlnet.com share IP numbers with mail.seijsener.com.