`mx1.eglearn.cz`

DNSSEC	⚠️ Not signed
A	212.69.128.133^{🇨🇿 CC_INTERNET212.69.128.0/24}
		PTR	`mx1.eglearn.cz`

`eglearn.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	212.69.128.133^{🇨🇿 CC_INTERNET212.69.128.0/24}
	NS	`ns1.aerohosting.cz` ⭐
	NS	`ns2.aerohosting.net`
	NS	`ns3.aerohosting.eu`
	MX	`mx1.eglearn.cz` ⭐
	MX	`mx2.improvmx.com`⁽¹⁰⁰⁾
	TXT	`MS=ms38363768`
	TXT	`v=spf1 ip4:212.69.128.133 include:spf.improvmx.com -all`
	TXT	`facebook-domain-verification=sbb1a3s0xvdvng98ofd9ibl8axt9jv`
	TXT	`google-site-verification=cyIHNkuWlQnvRbq0MyoMe6oSOYs9TgBoQoh2N-f__NE`
	TXT	`google-site-verification=rHsIgHKktDxHPxmAq4BZuoVLVZ36DioxILv5l0dsCT8`
	SOA	`ns1.aerohosting.cz`dns@aerohosting.cz 2026-04-11 #1

PTR for

133.128.69.212.in-addr.arpa

MX for

eglearn.cz

Same first word

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DNS History

1 record (1 active, 0 former)

●A212.69.128.1332026-04-20 → 2026-04-24 · 2 obs

● 2026-04-20 08:15:42
● 2026-04-24 03:04:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
eglearn.cz	ns1.aerohosting.cz, ns2.aerohosting.net, ns3.aerohosting.eu	2 records

✅ Authoritative Response

Server:77.81.243.62

NS records: ns1.aerohosting.cz, ns2.aerohosting.net, ns3.aerohosting.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1232ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.69.128.133`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.aerohosting.cz, ns1.aerohosting.cz)

Analysis

Mail Server Role

mx1.eglearn.cz serves as the mail server for eglearn.cz.

Together with mx1.eglearn.cz, mx2.improvmx.com is commonly used as a mail server.

IP Addresses

mx1.eglearn.cz resolves to a single IP: 212.69.128.133.

Other host names, for instance, eglearn.cz and as128133.agonet.it share IP numbers with mx1.eglearn.cz.

mx1.eglearn.cz - robtex.com

mx1.eglearn.cz

eglearn.cz