`biesterfeldpolychem.com`

DNSSEC	⚠️ Not signed
A	91.227.98.70^{🇩🇪 BIT-SERV91.227.98.0/23 GmbH Germany}
		PTR	`rev70.biesterfeld.com`
NS	`dns2.technorail.com` ⭐
		A	2a00:6d42:3:2096::f:1^{🇮🇹 ARUBA-ASN2a00:6d42::/32 Aruba S.p.A. IPv6 Network}
			PTR	`dns2.technorail.com`
		A	95.110.136.8^{🇮🇹 ARUBA-ASN95.110.136.0/21 Aruba S.p.A. Network}
			PTR	`dns2.technorail.com`
NS	`dns.technorail.com`
		A	2a00:6d40:2:2082::f:1^{🇮🇹 ARUBA-ASN2a00:6d40::/32 Aruba S.p.A. IPv6 Network}
			PTR	`dns.technorail.com`
		A	94.177.210.13^{🇮🇹 ARUBA-ASN94.177.208.0/22 Aruba S.p.A. Network}
			PTR	`dns.technorail.com`
NS	`dns3.arubadns.net`
		A	2a00:6d41:3:206e::f:1^{🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network}
			PTR	`dns3.arubadns.net`
		A	95.110.220.5^{🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network}
			PTR	`dns3.arubadns.net`
NS	`dns4.arubadns.cz`
		A	2001:15e8:104:4::d8ee^{🇨🇿 INTERNET-CZ2001:15e8::/32}
			PTR	`dns4.arubadns.cz`
		A	81.2.216.238^{🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.}
			PTR	`dns4.arubadns.cz`
MX	`biesterfeldpolychem-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::c^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.16^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00400.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
TXT	`MS=ms97526382`
TXT	`v=spf1 mx include:_spf.aruba.it ip4:185.89.228.130 exists:%{i}.spf.hc318-95.e...`
TXT	`atlassian-domain-verification=VbYonlhhBMyvUG2m5BYhnUe2GnV7xsbMLQayTmSbKbhI+Ir...`
TXT	`cisco-ci-domain-verification=56a4fb588edc428329f4dbf40a9f0505d5741a890923da64...`
SOA	`dns.technorail.com`hostmaster@biesterfeldpolychem.com 2025-02-24 #3

`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=1774635092

Same first word

biesterfeldpolychem.com

biesterfeldpolychem.eu

DNS History

18 records (6 active, 12 former)

●NSdns.technorail.com2015-07-14 → 2026-03-27 · 2 obs

● 2015-07-14 00:40:22
● 2026-03-27 18:32:24

●NSdns2.technorail.com2015-07-14 → 2026-03-27 · 2 obs

● 2015-07-14 00:40:22
● 2026-03-27 18:32:24

●NSdns3.arubadns.net2017-03-19 → 2026-03-27 · 3 obs

○ 2015-07-14 00:40:22
● 2017-03-19 12:16:52
● 2026-03-27 18:32:24

●NSdns4.arubadns.cz2017-03-19 → 2026-03-27 · 3 obs

○ 2015-07-14 00:40:22
● 2017-03-19 12:16:52
● 2026-03-27 18:32:24

●MXbiesterfeldpolychem-com.mail.protection.outlook.com2026-03-27 → 2026-03-27 · 3 obs

○ 2019-12-30 06:18:24
● 2026-03-27 18:32:22
● 2026-03-27 18:32:24

○MXmailin1.rmx.de2019-12-30 → 2019-12-30 · 4 obs

○ 2017-03-19 12:16:52
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○MXmailin2.rmx.de2019-12-30 → 2019-12-30 · 4 obs

○ 2017-03-19 12:16:52
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○MXmailin3.rmx.de2019-12-30 → 2019-12-30 · 4 obs

○ 2017-03-19 12:16:52
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○MXmailin4.rmx.de2019-12-30 → 2019-12-30 · 4 obs

○ 2017-03-19 12:16:52
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○MXvmail.biesterfeldpolychem.com2015-07-14 → 2017-03-19 · 4 obs

● 2015-07-14 00:40:22
● 2017-03-19 12:16:52
○ 2019-12-30 06:18:24
○ 2026-03-27 18:32:24

○MXvmail2.biesterfeldpolychem.com2017-03-19 → 2017-03-19 · 4 obs

○ 2015-07-14 00:40:22
● 2017-03-19 12:16:52
○ 2019-12-30 06:18:24
○ 2026-03-27 18:32:24

○A62.149.128.1512015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○A62.149.128.1542015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○A62.149.128.1572015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○A62.149.128.1602015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○A62.149.128.1632015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

○A62.149.128.1662015-07-14 → 2019-12-30 · 4 obs

● 2015-07-14 00:40:22
● 2019-12-30 06:18:24
○ 2026-03-27 18:32:22
○ 2026-03-27 18:32:24

●A91.227.98.702026-03-27 → 2026-03-27 · 3 obs

○ 2019-12-30 06:18:24
● 2026-03-27 18:32:22
● 2026-03-27 18:32:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
biesterfeldpolychem.com	dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz, dns3.arubadns.net	4 records

✅ Authoritative Response

Server:81.2.216.238

NS records: dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz, dns3.arubadns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biesterfeldpolychem.com (unsigned zone)

⏱️ Timing

Total: 279ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.227.98.70`
NS	4	`dns3.arubadns.net, dns4.arubadns.cz...`
MX	1	`biesterfeldpolychem-com.mail.protection.`
TXT	4	`MS=ms97526382, cisco-ci-domain-verification=56a4fb588ed...`
SOA	1	`dns.technorail.com hostmaster.biesterfel`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns2.technorail.com, dns2.technorail.com, dns.technorail.com...)

Analysis

IP Addresses

biesterfeldpolychem.com points to a single IP: 91.227.98.70.

Other host names, for example www.biesterfeld.com, www.biesterfeld-international.com, biesterfeldus.com and biesterfeldpolybass.com share IP numbers with biesterfeldpolychem.com.

Name Servers

biesterfeldpolychem.com's delegation is handled by four name servers: dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz and dns3.arubadns.net.

biesterfeldpolychem.com partially shares name servers with other domains; examples include psicologoacilia.it, studiolegalecalabritto.it, cybersolution.eu, andreaferroni.it and opendatasrl.com.

Host names with two IPs:

dns2.technorail.com points to 2a00:6d42:3:2096::f:1 and 95.110.136.8

dns.technorail.com points to 2a00:6d40:2:2082::f:1 and 94.177.210.13

dns4.arubadns.cz points to 2001:15e8:104:4::d8ee and 81.2.216.238

dns3.arubadns.net points to 2a00:6d41:3:206e::f:1 and 95.110.220.5

Mail Servers

biesterfeldpolychem.com is handled by a single mail server, biesterfeldpolychem-com.mail.protection.outlook.com.

Hostname biesterfeldpolychem-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::c, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::5, 2a01:111:f403:ca09::b, 52.101.68.3, 52.101.68.16, 52.101.68.29 and 52.101.73.1.

biesterfeldpolychem.com - robtex.com