lessonslearned.com - dns.ninja

`lessonslearned.com`

DNSSEC	⚠️ Not signed
A	109.203.120.71^{🇬🇧 AS31727109.203.120.0/24}
		PTR	`euk-85279.eukservers.com`
NS	`ns1045.ui-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:522d:100^{IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
		A	217.160.82.45^{IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
NS	`ns1045.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:512d:100^{IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
		A	217.160.81.45^{IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
NS	`ns1045.ui-dns.de`
		A	2001:8d8:fe:53:0:d9a0:502d:100^{IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
		A	217.160.80.45^{IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
NS	`ns1045.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:532d:100^{IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
		A	217.160.83.45^{IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
MX	`lessonslearned-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::5^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00205.inbound.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::1^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr07cu00301.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
TXT	`v=spf1 mx a ip4:109.203.120.71 include:spf.protection.outlook.com -all`
TXT	`MS=ms68905360`
TXT	`k9qhdpur8aohkeajp2d2or17vs`
TXT	`nch6snr5ktboc6tls5te5qgkj6`
TXT	`1ibej5m2980rat3e9b2du8640n`
TXT	`zone-ownership-verification-7e9e8626e62cb1114bcb0641c086a624c21ae56b290714837...`
TXT	`google-site-verification=gDrPmf5D_XjyGicjQKJzXXgs9ElUhqZnE3_fQo9gi7E`
TXT	`mil26pv7scoktd7sfke1boufvf`
SOA	`ns1045.ui-dns.com`hostmaster@1und1.com 2017-06-01 #54

`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=1783254616

Subdomains

is1.lessonslearned.com

dsi-server2.lessonslearned.com

Same first word

lessonslearned.at

lessonslearned.io

lessonslearned.com

lessonslearned.in

lessonslearned.cc

lessonslearned.co

lessonslearned.org

DNS History

14 records (6 active, 8 former)

○NSns.123-reg.co.uk2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

●NSns1045.ui-dns.biz2026-02-22 → 2026-07-06 · 3 obs

○ 2018-01-24 09:43:00
● 2026-02-22 02:40:18
● 2026-07-06 19:34:54

●NSns1045.ui-dns.com2026-02-22 → 2026-07-06 · 3 obs

○ 2018-01-24 09:43:00
● 2026-02-22 02:40:18
● 2026-07-06 19:34:54

●NSns1045.ui-dns.de2026-02-22 → 2026-07-06 · 3 obs

○ 2018-01-24 09:43:00
● 2026-02-22 02:40:18
● 2026-07-06 19:34:54

●NSns1045.ui-dns.org2026-02-22 → 2026-07-06 · 3 obs

○ 2018-01-24 09:43:00
● 2026-02-22 02:40:18
● 2026-07-06 19:34:54

○NSns2.123-reg.co.uk2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

○MXalt1.aspmx.l.google.com2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

○MXalt2.aspmx.l.google.com2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

○MXaspmx.l.google.com2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

○MXaspmx2.googlemail.com2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

○MXaspmx3.googlemail.com2015-07-08 → 2018-01-24 · 4 obs

● 2015-07-08 10:44:08
● 2018-01-24 09:43:00
○ 2026-02-22 02:40:18
○ 2026-07-06 19:34:54

●MXlessonslearned-com.mail.protection.outlook.com2026-02-22 → 2026-07-06 · 3 obs

○ 2018-01-24 09:43:00
● 2026-02-22 02:40:18
● 2026-07-06 19:34:54

●A109.203.120.712018-01-24 → 2026-07-06 · 3 obs

○ 2016-12-30 03:28:20
● 2018-01-24 09:43:00
● 2026-07-06 19:34:54

○A178.16.224.1242015-07-08 → 2016-12-30 · 4 obs

● 2015-07-08 10:44:08
● 2016-12-30 03:28:20
○ 2018-01-24 09:43:00
○ 2026-07-06 19:34:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
lessonslearned.com	ns1045.ui-dns.de, ns1045.ui-dns.biz, ns1045.ui-dns.org, ns1045.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.82.45

NS records: ns1045.ui-dns.de, ns1045.ui-dns.biz, ns1045.ui-dns.org, ns1045.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lessonslearned.com (unsigned zone)

⏱️ Timing

Total: 1497ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`109.203.120.71`
NS	4	`ns1045.ui-dns.de, ns1045.ui-dns.org...`
MX	1	`lessonslearned-com.mail.protection.outlo`
TXT	8	`google-site-verification=gDrPmf5D_XjyGic, MS=ms68905360...`
SOA	1	`ns1045.ui-dns.com hostmaster.1und1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1045.ui-dns.com, ns1045.ui-dns.com)

Analysis

Hierarchy

lessonslearned.com serves as the parent of is1.lessonslearned.com and dsi-server2.lessonslearned.com.

IP Addresses

lessonslearned.com has exactly one IP address — 109.203.120.71.

Among others, forschoolseducation.co.uk, euk-85279.eukservers.com, is1.lessonslearned.com and dsi-server2.lessonslearned.com resolve to the same IP numbers as lessonslearned.com.

Name Servers

Four name servers handle the delegation for lessonslearned.com: ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and ns1045.ui-dns.org.

Each of the four hosts ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and ns1045.ui-dns.org has two IP addresses. ns1045.ui-dns.biz points to 217.160.81.45 and 2001:8d8:fe:53:0:d9a0:512d:100. ns1045.ui-dns.com points to 217.160.82.45 and 2001:8d8:fe:53:0:d9a0:522d:100. ns1045.ui-dns.de points to 217.160.80.45 and 2001:8d8:fe:53:0:d9a0:502d:100. ns1045.ui-dns.org points to 217.160.83.45 and 2001:8d8:fe:53:0:d9a0:532d:100.

Mail Servers

lessonslearned.com uses one mail server — lessonslearned-com.mail.protection.outlook.com.

lessonslearned-com.mail.protection.outlook.com has 8 IP addresses: 52.101.68.12, 52.101.68.36, 52.101.73.15 plus 5 more.