`buchholz-software.de`

DNSSEC	⚠️ Not signed
A	89.117.59.225^{🇩🇪 CONTABO89.117.48.0/20}
		PTR	`mail.buchholz-software.de`
NS	`ns1.icyteas.de` ⭐
		A	2001:8d8:fe:53:217:160:80:161^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
		A	217.160.80.161^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
NS	`ns2.icyteas.de`
		A	2001:8d8:fe:53:217:160:81:161^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.biz`
		A	217.160.81.161^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.biz`
NS	`ns3.icyteas.de`
		A	2607:f1c0:fe:53:185:132:35:161^{🇺🇸 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	`ns-ix2.ui-dns.org`
		A	185.132.35.161^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-ix2.ui-dns.org`
NS	`ns4.icyteas.de`
		A	2607:f1c0:fe:53:185:132:34:161^{🇺🇸 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	`ns-ix2.ui-dns.com`
		A	185.132.34.161^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-ix2.ui-dns.com`
MX	`buchholz-software.de` ⭐
		A	89.117.59.225^{🇩🇪 CONTABO89.117.48.0/20}
			PTR	`mail.buchholz-software.de`
TXT	`v=spf1 ip4:89.117.59.225 mx:buchholz-software.de ~all`
TXT	`MS=53C4022ED86F7AAF98C695115F10E3CB4B3A4D1E`
SOA	`ns1.icyteas.de`hbuchholz@buchholz-software.de 2025-12-10 #1

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1786514153

WOT: SAFE (50/100)

MX for

mail.buchholz-software.de

buchholz-software.de

Subdomains

mail.buchholz-software.de

89.buchholz-software.de

www.buchholz-software.de

Same first word

buchholz-software.de

DNS History

9 records (6 active, 3 former)

●NSns1.icyteas.de2015-06-10 → 2026-08-12 · 2 obs

● 2015-06-10 17:57:36
● 2026-08-12 06:30:30

●NSns2.icyteas.de2015-06-10 → 2026-08-12 · 2 obs

● 2015-06-10 17:57:36
● 2026-08-12 06:30:30

●NSns3.icyteas.de2015-06-10 → 2026-08-12 · 2 obs

● 2015-06-10 17:57:36
● 2026-08-12 06:30:30

●NSns4.icyteas.de2015-06-10 → 2026-08-12 · 2 obs

● 2015-06-10 17:57:36
● 2026-08-12 06:30:30

●MXbuchholz-software.de2026-02-16 → 2026-08-12 · 3 obs

○ 2020-02-11 21:25:48
● 2026-02-16 11:01:58
● 2026-08-12 06:30:30

○MXmail.buchholz-software.de2015-06-10 → 2020-02-11 · 4 obs

● 2015-06-10 17:57:36
● 2020-02-11 21:25:48
○ 2026-02-16 11:01:58
○ 2026-08-12 06:30:30

○A213.136.77.1552015-06-10 → 2017-02-14 · 4 obs

● 2015-06-10 17:57:36
● 2017-02-14 06:00:08
○ 2020-02-11 21:25:48
○ 2026-08-12 06:30:30

○A85.214.59.582020-02-11 → 2020-02-11 · 4 obs

○ 2017-02-14 06:00:08
● 2020-02-11 21:25:48
○ 2026-02-16 11:01:58
○ 2026-08-12 06:30:30

●A89.117.59.2252026-02-16 → 2026-08-12 · 3 obs

○ 2020-02-11 21:25:48
● 2026-02-16 11:01:58
● 2026-08-12 06:30:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
buchholz-software.de	ns3.icyteas.de, ns2.icyteas.de, ns1.icyteas.de, ns4.icyteas.de	8 records

✅ Authoritative Response

Server:89.146.248.122

NS records: ns3.icyteas.de, ns2.icyteas.de, ns1.icyteas.de, ns4.icyteas.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for buchholz-software.de (unsigned zone)

⏱️ Timing

Total: 634ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.117.59.225`
NS	4	`ns4.icyteas.de, ns3.icyteas.de...`
MX	1	`buchholz-software.de (pri: 10)`
TXT	2	`MS=53C4022ED86F7AAF98C695115F10E3CB4B3A4, v=spf1 ip4:89.117.59.225 mx:buchholz-sof`
SOA	1	`ns1.icyteas.de hbuchholz.buchholz-softwa`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns4.icyteas.de, ns3.icyteas.de, ns2.icyteas.de...)

Analysis

Hierarchy

The domain buchholz-software.de is parent to mail.buchholz-software.de, 89.buchholz-software.de and www.buchholz-software.de.

Mail Server Role

buchholz-software.de serves as a mail server for both mail.buchholz-software.de and buchholz-software.de.

IP Addresses

buchholz-software.de points to a single IP number: 89.117.59.225.

Additional host names — www.buchholz-software.de, buchholz-computer.de, mail.buchholz-software.de and two others — share IP numbers with buchholz-software.de.

Name Servers

buchholz-software.de has four authoritative name servers: ns1.icyteas.de, ns2.icyteas.de, ns3.icyteas.de and ns4.icyteas.de.

At least some of buchholz-software.de's name servers are shared with other domains, for example 68.137.83.in-addr.arpa, dahlum-evangelisch.de, hifreak.de and two more.

These name servers tend to be used in conjunction with the name servers a.ns14.net.

Four hostnames, each resolving to a pair of IP addresses: ns1.icyteas.de directs to 217.160.80.161 and 2001:8d8:fe:53:217:160:80:161; ns2.icyteas.de directs to 217.160.81.161 and 2001:8d8:fe:53:217:160:81:161; ns3.icyteas.de directs to 185.132.35.161 and 2607:f1c0:fe:53:185:132:35:161; ns4.icyteas.de directs to 185.132.34.161 and 2607:f1c0:fe:53:185:132:34:161.

Mail Servers

buchholz-software.de has a single mail server: buchholz-software.de itself.

buchholz-software.de shares its mail server setup with other domains, such as mail.buchholz-software.de.

There is one IP number for buchholz-software.de: 89.117.59.225.

buchholz-software.de - robtex.com