`rackbuilder.info`

DNSSEC	⚠️ Not signed
A	2607:f1c0:100f:f000::280^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`2607-f1c0-100f-f000-0000-0000-0000-0280.elastic-ssl.ui-r.com`
A	74.208.236.7^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
NS	`ns-us.1and1-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:5202:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.com`
		A	217.160.82.2^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.com`
NS	`ns-us.1and1-dns.de`
		A	2001:8d8:fe:53:0:d9a0:5002:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.de`
		A	217.160.80.2^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.de`
NS	`ns-us.1and1-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5302:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.org`
		A	217.160.83.2^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.org`
NS	`ns-us.1and1-dns.us`
		A	2001:8d8:fe:53:0:d9a0:5102:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.us`
		A	217.160.81.2^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-us.1and1-dns.us`
MX	`mx00.1and1.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.1and1.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
SOA	`ns-us.1and1-dns.com`hostmaster@1and1.com 2018-02-21 #0

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1776203395

Same first word

rackbuilder.de

rackbuilder.info

rackbuilder.com

DNS History

16 records (8 active, 8 former)

○NSns-uk.1and1-dns.biz2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

○NSns-uk.1and1-dns.co.uk2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

○NSns-uk.1and1-dns.com2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

○NSns-uk.1and1-dns.org2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

●NSns-us.1and1-dns.com2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

●NSns-us.1and1-dns.de2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

●NSns-us.1and1-dns.org2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

●NSns-us.1and1-dns.us2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

○MXmx00.1and1.co.uk2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

●MXmx00.1and1.com2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

○MXmx01.1and1.co.uk2015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

●MXmx01.1and1.com2026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

○A2001:8d8:830:aeb4:6815:8fb8:2da0:02015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

○A212.227.54.522015-05-12 → 2017-04-18 · 4 obs

● 2015-05-12 01:44:32
● 2017-04-18 23:41:32
○ 2026-03-24 11:21:28
○ 2026-04-14 22:30:58

●A2607:f1c0:100f:f000::2802026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

●A74.208.236.72026-03-24 → 2026-04-14 · 3 obs

○ 2017-04-18 23:41:32
● 2026-03-24 11:21:28
● 2026-04-14 22:30:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
rackbuilder.info	ns-us.1and1-dns.de, ns-us.1and1-dns.org, ns-us.1and1-dns.us, ns-us.1and1-dns.com	-

✅ Authoritative Response

Server:217.160.80.2

NS records: ns-us.1and1-dns.de, ns-us.1and1-dns.org, ns-us.1and1-dns.us, ns-us.1and1-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rackbuilder.info (unsigned zone)

⏱️ Timing

Total: 544ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.236.7`
AAAA	1	`2607:f1c0:100f:f000::280`
NS	4	`ns-us.1and1-dns.us, ns-us.1and1-dns.com...`
MX	2	`mx00.1and1.com (pri: 10), mx01.1and1.com (pri: 10)`
SOA	1	`ns-us.1and1-dns.com hostmaster.1and1.com`

Analysis

IP Addresses

The entity rackbuilder.info points to two IP numbers: 2607:f1c0:100f:f000::280 and 74.208.236.7.

For instance, other host names emboss.ca, mjtcast.com, cyapress.com, rapidclouds.net and tcliberia.com share IP numbers with rackbuilder.info.

Name Servers

rackbuilder.info is delegated to four name servers: ns-us.1and1-dns.com, ns-us.1and1-dns.de, ns-us.1and1-dns.org and ns-us.1and1-dns.us.

rackbuilder.info shares name servers with other domains at least partially, for example raleigh.soccer, vancouvergaragecabinets.com, heliosderm.com, iscape.photography and tcicomm.com.

These name servers are commonly used alongside ns51.1and1.com, ns52.1and1.com, ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and ns1045.ui-dns.org.

Host names with two IP numbers:

ns-us.1and1-dns.com points to: 2001:8d8:fe:53:0:d9a0:5202:100 and 217.160.82.2

ns-us.1and1-dns.de points to: 2001:8d8:fe:53:0:d9a0:5002:100 and 217.160.80.2

ns-us.1and1-dns.org points to: 2001:8d8:fe:53:0:d9a0:5302:100 and 217.160.83.2

ns-us.1and1-dns.us points to: 2001:8d8:fe:53:0:d9a0:5102:100 and 217.160.81.2

Mail Servers

Two mail servers mx00.1and1.com and mx01.1and1.com handle rackbuilder.info.

rackbuilder.info shares the same mail server setup as other domains, for instance thirukkural.org, s115442684.onlinehome.us, univertcondos.ca, lori.ca and forum.matriux.com.

rackbuilder.info shares mail servers with other domains at least partially; for instance lamedtechnology.org, syntheticturfcouncil.org, coachmeika.com, tginside.net and qbpartner.com.

Host names with one IP number:

mx00.1and1.com points to: 74.208.5.3.

mx01.1and1.com points to: 74.208.5.21.

rackbuilder.info - robtex.com