`katharinakollmann.com`

DNSSEC	⚠️ Not signed
A	81.19.159.89^{🇦🇹 IONOS-AS81.19.144.0/20 World4You.com}
		PTR	`www89sni.world4you.com`
NS	`ns1.world4you.at` ⭐
		A	2607:f1c0:fe:53:185:132:32:253^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1.world4you.at`
		A	185.132.32.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1.world4you.at`
NS	`ns2.world4you.at`
		A	2001:8d8:fe:53:217:160:82:253^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns2.world4you.at`
		A	217.160.82.253^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns2.world4you.at`
MX	`mail.katharinakollmann.com` ⭐
		A	81.19.149.76^{🇦🇹 IONOS-AS81.19.144.0/20 World4You.com}
			PTR	`mail23.world4you.com`
TXT	`google-site-verification=8ITQw1DiMWp4n-icURsOmS2SBDf7-SgTlumo_jpGYQU`
TXT	`v=spf1 mx include:spf.w4ymail.at -all`
SOA	`ns1.world4you.at`hostmaster@world4you.com 2025-03-21 #10

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1777044096

Subdomains

mail.katharinakollmann.com

DNS History

6 records (4 active, 2 former)

●NSns1.world4you.at2015-08-19 → 2026-04-24 · 2 obs

● 2015-08-19 06:25:34
● 2026-04-24 15:25:34

●NSns2.world4you.at2015-08-19 → 2026-04-24 · 2 obs

● 2015-08-19 06:25:34
● 2026-04-24 15:25:34

●MXmail.katharinakollmann.com2015-08-19 → 2026-04-24 · 2 obs

● 2015-08-19 06:25:34
● 2026-04-24 15:25:34

○A188.172.196.292017-04-18 → 2017-04-18 · 4 obs

○ 2016-09-18 15:28:36
● 2017-04-18 11:34:10
○ 2026-04-24 15:25:32
○ 2026-04-24 15:25:34

○A81.19.145.1592015-08-19 → 2016-09-18 · 4 obs

● 2015-08-19 06:25:34
● 2016-09-18 15:28:36
○ 2017-04-18 11:34:10
○ 2026-04-24 15:25:34

●A81.19.159.892026-04-24 → 2026-04-24 · 3 obs

○ 2017-04-18 11:34:10
● 2026-04-24 15:25:32
● 2026-04-24 15:25:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...	-
katharinakollmann.com	ns1.world4you.at, ns2.world4you.at	-

✅ Authoritative Response

Server:217.160.82.253

NS records: ns1.world4you.at, ns2.world4you.at

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for katharinakollmann.com (unsigned zone)

⏱️ Timing

Total: 861ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.19.159.89`
NS	2	`ns1.world4you.at, ns2.world4you.at`
MX	1	`mail.katharinakollmann.com (pri: 10)`
TXT	2	`google-site-verification=8ITQw1DiMWp4n-i, v=spf1 mx include:spf.w4ymail.at -all`
SOA	1	`ns1.world4you.at hostmaster.world4you.co`

Analysis

Hierarchy

katharinakollmann.com is a parent of mail.katharinakollmann.com.

IP Addresses

katharinakollmann.com points to a single IP number: 81.19.159.89.

Other host names, for instance kickmeier.at, 4immo.at, www.salamanda.at, g-tech1.at and bulgarini.at share IP numbers with katharinakollmann.com.

Name Servers

Delegation for katharinakollmann.com rests with two name servers, ns1.world4you.at and ns2.world4you.at.

katharinakollmann.com shares the same name server setup as other domains, including tb-indutherm.at, drehscheibe24.at, strats-welt.at, zwcad.at and lohfeyer-partner.at.

Host names with two IP numbers: ns1.world4you.at points to 2607:f1c0:fe:53:185:132:32:253 and 185.132.32.253; ns2.world4you.at points to 2001:8d8:fe:53:217:160:82:253 and 217.160.82.253.

Mail Servers

katharinakollmann.com is handled by a single mail server, mail.katharinakollmann.com.

mail.katharinakollmann.com points to a single IP: 81.19.149.76.

katharinakollmann.com - robtex.com