`21stcenturycement.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::232^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0232.elastic-ssl.ui-r.com`
A	217.160.0.141^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1088.ui-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:5258:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.com`
		A	217.160.82.88^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.com`
NS	`ns1088.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5158:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.biz`
		A	217.160.81.88^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.biz`
NS	`ns1088.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:88^{🇺🇸 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	`ns1088.ui-dns.de`
		A	217.160.80.88^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.de`
NS	`ns1088.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5358:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.org`
		A	217.160.83.88^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1088.ui-dns.org`
MX	`mx00.ionos.co.uk` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.co.uk` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	`ns1088.ui-dns.com`hostmaster@1and1.com 2017-05-04 #4

`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=1777182256

Same first word

21stcenturycement.com

DNS History

18 records (8 active, 10 former)

○NSns-uk.1and1-dns.biz2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

○NSns-uk.1and1-dns.co.uk2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

○NSns-uk.1and1-dns.com2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

○NSns-uk.1and1-dns.org2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

●NSns1088.ui-dns.biz2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

●NSns1088.ui-dns.com2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

●NSns1088.ui-dns.de2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

●NSns1088.ui-dns.org2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

○MXmx00.1and1.co.uk2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

●MXmx00.ionos.co.uk2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

○MXmx01.1and1.co.uk2016-04-02 → 2017-04-18 · 4 obs

● 2016-04-02 20:43:32
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

●MXmx01.ionos.co.uk2026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

○A2001:8d8:1001:53c6:da85:2009:4f94:e8512016-09-15 → 2017-04-18 · 5 obs

○ 2016-04-02 20:43:32
● 2016-09-15 18:56:12
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

○A2001:8d8:1001:53c6:fada:d71f:1e83:98222016-04-02 → 2016-04-02 · 3 obs

● 2016-04-02 20:43:32
○ 2016-09-15 18:56:12
○ 2026-04-26 05:47:56

●A2001:8d8:100f:f000::2322026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

●A217.160.0.1412026-02-28 → 2026-04-26 · 3 obs

○ 2017-04-18 20:02:52
● 2026-02-28 08:12:20
● 2026-04-26 05:47:56

○A217.160.231.722016-09-15 → 2017-04-18 · 5 obs

○ 2016-04-02 20:43:32
● 2016-09-15 18:56:12
● 2017-04-18 20:02:52
○ 2026-02-28 08:12:20
○ 2026-04-26 05:47:56

○A82.165.32.1422016-04-02 → 2016-04-02 · 3 obs

● 2016-04-02 20:43:32
○ 2016-09-15 18:56:12
○ 2026-04-26 05:47:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21stcenturycement.com	ns1088.ui-dns.de, ns1088.ui-dns.biz, ns1088.ui-dns.org, ns1088.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.82.88

NS records: ns1088.ui-dns.de, ns1088.ui-dns.biz, ns1088.ui-dns.org, ns1088.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21stcenturycement.com (unsigned zone)

⏱️ Timing

Total: 510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.141`
AAAA	1	`2001:8d8:100f:f000::232`
NS	4	`ns1088.ui-dns.de, ns1088.ui-dns.biz...`
MX	2	`mx00.ionos.co.uk (pri: 10), mx01.ionos.co.uk (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1088.ui-dns.com hostmaster.1and1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1088.ui-dns.com, ns1088.ui-dns.com)

Analysis

IP Addresses

21stcenturycement.com resolves to two IP numbers: 2001:8d8:100f:f000::232 and 217.160.0.141.

other host names including hannoverschokolade.com, personalpoint.eu, empatech.de, s192905269.online.de and morante-torero.com share IP numbers with 21stcenturycement.com.

Name Servers

21stcenturycement.com is delegated to four name servers: ns1088.ui-dns.biz, ns1088.ui-dns.com, ns1088.ui-dns.de and ns1088.ui-dns.org.

21stcenturycement.com at least partially shares name servers with other domains, for instance lakefly.at, ortocenter.net, modehaus.name, kinder-und-heimatfeste.de and ldcdrivingschools.com.

These name servers are commonly used alongside ns1030.ui-dns.de and ns1045.ui-dns.de.

Host names with two IP numbers:

ns1088.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5158:100 and 217.160.81.88; ns1088.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5258:100 and 217.160.82.88; ns1088.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:88 and 217.160.80.88; ns1088.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5358:100 and 217.160.83.88.

Mail Servers

Two mail servers handle 21stcenturycement.com: mx00.ionos.co.uk and mx01.ionos.co.uk.

21stcenturycement.com shares the same mail server setup as other domains, for instance f-whs.com, martinstewart.co.uk, seemyphysio.com, paservice.co.uk and sweetsweat.eu.

21stcenturycement.com shares some mail servers with other domains, at least partially, for example zombie-fest.com and debwilf.wilf.co.uk.

Host names with one IP number:

mx00.ionos.co.uk points to 212.227.15.41

mx01.ionos.co.uk points to 217.72.192.67

21stcenturycement.com - robtex.com