`alfa.udger.com`

DNSSEC	⚠️ Not signed
A	2a01:5f0:c001:119:216:3eff:fe01:38b^{🇨🇿 COOLHOUSING-AS2a01:5f0::/32 Network of Coolhousing}
		PTR	`alfa.udger.com`
A	89.187.145.139^{🇨🇿 COOLHOUSING-AS89.187.144.0/23 Network of Coolhousing}
TXT	`v=spf1 a mx ~all`

`udger.com`

	DNSSEC	🔒 Signed (DS record present)
	A	2a01:5f0:c001:119:216:3eff:fe01:38b^{🇨🇿 COOLHOUSING-AS2a01:5f0::/32 Network of Coolhousing}
	A	89.187.145.139^{🇨🇿 COOLHOUSING-AS89.187.144.0/23 Network of Coolhousing}
	NS	`ns1.websupport.cz` ⭐
	NS	`ns2.websupport.cz`
	NS	`ns3.websupport.eu`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	SOA	`ns1.websupport.cz`admin@websupport.cz serial=1764421044

WOT: SAFE (62/100)
rank #533564 globally
rank #232556 in the tld
WOT: SAFE (70/100)

PTR for

b.8.3.0.1.0.e.f.f.f.e.3.6.1.2.0.9.1.1.0.1.0.0.c.0.f.5.0.1.0.a.2.ip6.arpa

139.145.187.89.in-addr.arpa

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DNS History

2 records (2 active, 0 former)

●A2a01:5f0:c001:119:216:3eff:fe01:38b2017-01-08 → 2026-05-09 · 2 obs

● 2017-01-08 06:53:14
● 2026-05-09 10:01:56

●A89.187.145.1392017-01-08 → 2026-05-09 · 2 obs

● 2017-01-08 06:53:14
● 2026-05-09 10:01:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
udger.com	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:185.71.159.12

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 734ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.187.145.139`
AAAA	1	`2a01:5f0:c001:119:216:3eff:fe01:38b`
TXT	1	`v=spf1 a mx ~all`

Analysis

IP Addresses

alfa.udger.com resolves to two IP numbers: 2a01:5f0:c001:119:216:3eff:fe01:38b and 89.187.145.139.

Other host names, for instance, udger.com and user-agent-string.info share IP numbers with alfa.udger.com.

alfa.udger.com - robtex.com

alfa.udger.com

udger.com