`learnaboutstructures.com`

DNSSEC	⚠️ Not signed
A	2607:f1c0:100f:f000::2b5^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`2607-f1c0-100f-f000-0000-0000-0000-02b5.elastic-ssl.ui-r.com`
A	74.208.236.226^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
NS	`ns1110.ui-dns.org` ⭐
		A	2001:8d8:fe:53:0:d9a0:536e:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.org`
		A	217.160.83.110^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.org`
NS	`ns1110.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:516e:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.biz`
		A	217.160.81.110^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.biz`
NS	`ns1110.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:526e:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.com`
		A	217.160.82.110^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.com`
NS	`ns1110.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:110^{🇺🇸 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	`ns1110.ui-dns.de`
		A	185.132.32.110^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1110.ui-dns.de`
		A	217.160.80.110^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1110.ui-dns.de`
MX	`mx00.ionos.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1110.ui-dns.org`hostmaster@1and1.com 2017-05-13 #14

`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=1771291435

Same first word

learnaboutstructures.com

DNS History

16 records (8 active, 8 former)

○NSns-us.1and1-dns.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

○NSns-us.1and1-dns.de2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

○NSns-us.1and1-dns.org2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

○NSns-us.1and1-dns.us2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

●NSns1110.ui-dns.biz2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

●NSns1110.ui-dns.com2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

●NSns1110.ui-dns.de2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

●NSns1110.ui-dns.org2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

○MXmx00.1and1.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

●MXmx00.ionos.com2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

○MXmx01.1and1.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

●MXmx01.ionos.com2026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

○A2607:f1c0:1000:40ae:8d7a:b5d7:2fb3:e8202016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

●A2607:f1c0:100f:f000::2b52026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

○A74.208.215.1732016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 02:24:42
○ 2026-03-20 10:33:12
○ 2026-03-22 19:28:10

●A74.208.236.2262026-03-20 → 2026-03-22 · 3 obs

○ 2016-12-20 02:24:42
● 2026-03-20 10:33:12
● 2026-03-22 19:28:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
learnaboutstructures.com	ns1110.ui-dns.de, ns1110.ui-dns.biz, ns1110.ui-dns.org, ns1110.ui-dns.com	2 records

✅ Authoritative Response

Server: 217.160.82.110

NS records: ns1110.ui-dns.de, ns1110.ui-dns.biz, ns1110.ui-dns.org, ns1110.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learnaboutstructures.com (unsigned zone)

⏱️ Timing

Total: 766ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.236.226`
AAAA	1	`2607:f1c0:100f:f000::2b5`
NS	4	`ns1110.ui-dns.org, ns1110.ui-dns.biz...`
MX	2	`mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1110.ui-dns.org hostmaster.1and1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1110.ui-dns.com, ns1110.ui-dns.com)

Analysis

IP Addresses

learnaboutstructures.com resolves to two IP numbers: 2607:f1c0:100f:f000::2b5 and 74.208.236.226.

Other host names, for instance pinetreesolutions.com, www.sara-nasserzadeh.com, jaypeak.com, hurricanechecklist.com and millnesstradefinance.com share IP numbers with learnaboutstructures.com.

Name Servers

learnaboutstructures.com's delegation is handled by four name servers: ns1110.ui-dns.biz, ns1110.ui-dns.com, ns1110.ui-dns.de and ns1110.ui-dns.org.

learnaboutstructures.com partially shares name servers with other domains; examples include zimdahl.com, hoeglauer-muc.com, polwein.de, acesurgicalsolutions.net and august-pfueller.net.

These name servers are commonly used alongside ns1041.ui-dns.org, ns1028.ui-dns.de, ns1102.ui-dns.biz, ns1075.ui-dns.de, ns1043.ui-dns.com, ns1024.ui-dns.biz, ns1040.ui-dns.com, ns1054.ui-dns.com, ns1056.ui-dns.biz and ns1076.ui-dns.org.

Host names with three IP numbers:

ns1110.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:110, 185.132.32.110 and 217.160.80.110.

Host names with two IP numbers:

ns1110.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:516e:100 and 217.160.81.110.

ns1110.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:526e:100 and 217.160.82.110.

ns1110.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:536e:100 and 217.160.83.110.

Mail Servers

learnaboutstructures.com is handled by two mail servers: mx00.ionos.com and mx01.ionos.com.

learnaboutstructures.com has the same mail server setup as other domains, including zhivebelarus.com, truenim.com, amiestoneking.com, inspiredharbor.com and player-u.com.

Some mail servers are shared between learnaboutstructures.com and other domains, for example veho.de.

Host names with one IP number: The host name mx00.ionos.com points to 74.208.5.3 and the host name mx01.ionos.com points to 74.208.5.21.

learnaboutstructures.com - robtex.com