bic4.com - dns.ninja

`bic4.com`

DNSSEC	⚠️ Not signed
A	185.243.11.73^{🇩🇪 netcup-AS185.243.11.0/24}
		PTR	`rw0b49.webhosting.systems`
NS	`root-dns.netcup.net` ⭐
		A	2a03:4000:0:1::e1e1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`root-dns.netcup.net`
		A	46.38.225.225^{🇩🇪 netcup-AS46.38.225.0/24}
			PTR	`root-dns.netcup.net`
NS	`second-dns.netcup.net`
		A	2a03:4000:2:24b::c7c7^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`second-dns.netcup.net`
		A	37.221.199.199^{🇩🇪 netcup-AS37.221.196.0/22}
			PTR	`second-dns.netcup.net`
NS	`third-dns.netcup.net`
		A	2a03:4001:0:106::3f44^{🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
		A	188.68.63.68^{🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
MX	`mail.bic4.com` ⭐
		A	185.243.11.73^{🇩🇪 netcup-AS185.243.11.0/24}
			PTR	`rw0b49.webhosting.systems`
MX	`rw0b49.webhosting.systems`⁽⁵⁰⁾
		A	185.243.11.73^{🇩🇪 netcup-AS185.243.11.0/24}
			PTR	`rw0b49.webhosting.systems`
TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2023-08-29 #13

`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=1785873254

Subdomains

mail1.bic4.com

mail.bic4.com

Same first word

bic4.azurewebsites.net

bic4.net

bic4.com

bic4.de

Similar names

c4bi.com

ci4b.de

4cib.com

4cbi.co.uk

4ibc.com

b4ic.com

b4ci.com

bi4c.at

b4ic.net

ci4b.com

DNS History

11 records (6 active, 5 former)

○NSns.namespace4you.de2015-06-09 → 2017-10-04 · 4 obs

● 2015-06-09 00:59:34
● 2017-10-04 05:03:48
○ 2026-02-16 02:22:58
○ 2026-08-04 20:12:50

○NSns2.namespace4you.de2015-06-09 → 2017-10-04 · 4 obs

● 2015-06-09 00:59:34
● 2017-10-04 05:03:48
○ 2026-02-16 02:22:58
○ 2026-08-04 20:12:50

●NSroot-dns.netcup.net2026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

●NSsecond-dns.netcup.net2026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

●NSthird-dns.netcup.net2026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

●MXmail.bic4.com2026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

○MXmx2.bic4.net2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 00:59:34
○ 2015-10-16 03:49:24
○ 2026-08-04 20:12:50

○MXmx3.bic4.net2015-10-16 → 2017-10-04 · 5 obs

○ 2015-06-09 00:59:34
● 2015-10-16 03:49:24
● 2017-10-04 05:03:48
○ 2026-02-16 02:22:58
○ 2026-08-04 20:12:50

●MXrw0b49.webhosting.systems2026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

●A185.243.11.732026-02-16 → 2026-08-04 · 3 obs

○ 2017-10-04 05:03:48
● 2026-02-16 02:22:58
● 2026-08-04 20:12:50

○A217.11.59.1182015-06-09 → 2017-10-04 · 4 obs

● 2015-06-09 00:59:34
● 2017-10-04 05:03:48
○ 2026-02-16 02:22:58
○ 2026-08-04 20:12:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...	-
bic4.com	root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net	-

✅ Authoritative Response

Server:188.68.63.68

NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bic4.com (unsigned zone)

⏱️ Timing

Total: 714ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.243.11.73`
NS	3	`third-dns.netcup.net, root-dns.netcup.net...`
MX	2	`mail.bic4.com (pri: 10), rw0b49.webhosting.systems (pri: 50)`
TXT	1	`v=spf1 mx a include:_spf.webhosting.syst`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

mail1.bic4.com and mail.bic4.com are both subdomains of bic4.com.

IP Addresses

bic4.com resolves to one IP address: 185.243.11.73.

mail.familienzentrum-niederwenigern.de, mail.steuer-kaufmann.eu, arnusch.info and two other host names share IP numbers with bic4.com.

Name Servers

Three name servers are authoritative for bic4.com: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

bic4.com partially shares its NS delegation with several other domains, including cashbox.cc, christusgemeinde.com, almi.wtf and two others.

root-dns.netcup.net resolves to 46.38.225.225 and 2a03:4000:0:1::e1e1. second-dns.netcup.net resolves to 37.221.199.199 and 2a03:4000:2:24b::c7c7. third-dns.netcup.net resolves to 188.68.63.68 and 2a03:4001:0:106::3f44. All three hostnames point to two IP numbers each.

Mail Servers

Mail for bic4.com is handled by two mail servers — mail.bic4.com and rw0b49.webhosting.systems.

bic4.com has at least partial mail server overlap with other domains such as funkcenter.de, radiologie-kl.de, steuerkaufmann.com and two more.

These mail servers commonly co-occur with mail servers mail.radiologie-kl.de, mail.steuerkaufmann.com, mail.steuerkaufmann.eu and 5 others.

mail.bic4.com and rw0b49.webhosting.systems share one IP address between them — 185.243.11.73.

These two host names — mail.bic4.com and rw0b49.webhosting.systems — each point to 185.243.11.73 IP addresses.