`yellowbookltd.com`

DNSSEC	⚠️ Not signed
A	64.64.8.113^{🇺🇸 LEASEWEB-US64.64.0.0/20 Leaseweb USA, Inc.}
NS	`ns1-08.azure-dns.com` ⭐
		A	2603:1061:0:700::8^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-08.azure-dns.com`
		A	13.107.236.8^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-08.azure-dns.com`
NS	`ns2-08.azure-dns.net`
		A	2620:1ec:8ec:700::8^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-08.azure-dns.net`
		A	150.171.21.8^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-08.azure-dns.net`
NS	`ns3-08.azure-dns.org`
		A	2a01:111:4000:700::8^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-08.azure-dns.org`
		A	204.14.183.8^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-08.azure-dns.org`
NS	`ns4-08.azure-dns.info`
		A	2620:1ec:bda:700::8^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-08.azure-dns.info`
		A	208.84.5.8^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-08.azure-dns.info`
MX	`yellowbookltd-com.mail.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::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::1^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr07cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::9^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr04cu00801.inbound.protection.outlook.com`
		A	52.101.68.25^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db8pr02cu00101.inbound.protection.outlook.com`
		A	52.101.68.32^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00200.inbound.protection.outlook.com`
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms24331738`
SOA	`ns1-08.azure-dns.com`azuredns-hostmaster@microsoft.com serial=1

`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=1776196512

Same first word

yellowbookltd.com

DNS History

10 records (6 active, 4 former)

●NSns1-08.azure-dns.com2026-03-09 → 2026-04-14 · 3 obs

○ 2016-12-22 10:02:12
● 2026-03-09 19:04:32
● 2026-04-14 19:56:12

○NSns1.dnsfarm.org2015-05-20 → 2016-12-22 · 4 obs

● 2015-05-20 22:58:52
● 2016-12-22 10:02:12
○ 2026-03-09 19:04:32
○ 2026-04-14 19:56:12

●NSns2-08.azure-dns.net2026-03-09 → 2026-04-14 · 3 obs

○ 2016-12-22 10:02:12
● 2026-03-09 19:04:32
● 2026-04-14 19:56:12

○NSns2.dnsfarm.org2015-05-20 → 2016-12-22 · 4 obs

● 2015-05-20 22:58:52
● 2016-12-22 10:02:12
○ 2026-03-09 19:04:32
○ 2026-04-14 19:56:12

●NSns3-08.azure-dns.org2026-03-09 → 2026-04-14 · 3 obs

○ 2016-12-22 10:02:12
● 2026-03-09 19:04:32
● 2026-04-14 19:56:12

○NSns3.dnsfarm.org2015-05-20 → 2016-12-22 · 4 obs

● 2015-05-20 22:58:52
● 2016-12-22 10:02:12
○ 2026-03-09 19:04:32
○ 2026-04-14 19:56:12

●NSns4-08.azure-dns.info2026-03-09 → 2026-04-14 · 3 obs

○ 2016-12-22 10:02:12
● 2026-03-09 19:04:32
● 2026-04-14 19:56:12

○MXexchange01.virtuserve.co.uk2015-05-20 → 2016-04-22 · 4 obs

● 2015-05-20 22:58:52
● 2016-04-22 08:03:00
○ 2016-11-29 01:54:30
○ 2026-04-14 19:56:12

●MXyellowbookltd-com.mail.protection.outlook.com2016-11-29 → 2026-04-14 · 3 obs

○ 2016-04-22 08:03:00
● 2016-11-29 01:54:30
● 2026-04-14 19:56:12

●A64.64.8.1132015-05-20 → 2026-04-14 · 2 obs

● 2015-05-20 22:58:52
● 2026-04-14 19:56:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
yellowbookltd.com	ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info	2 records

✅ Authoritative Response

Server:204.14.183.8

NS records: ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yellowbookltd.com (unsigned zone)

⏱️ Timing

Total: 244ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`64.64.8.113`
NS	4	`ns1-08.azure-dns.com, ns2-08.azure-dns.net...`
MX	1	`yellowbookltd-com.mail.protection.outloo`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms24331738`
SOA	1	`ns1-08.azure-dns.com azuredns-hostmaster`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1-08.azure-dns.com, ns1-08.azure-dns.com)

Analysis

IP Addresses

yellowbookltd.com points to a single IP: 64.64.8.113.

Other host names, for instance glasgowcu.co.uk, share IP numbers with yellowbookltd.com.

Name Servers

yellowbookltd.com is delegated to four name servers: ns1-08.azure-dns.com, ns4-08.azure-dns.info, ns2-08.azure-dns.net and ns3-08.azure-dns.org.

yellowbookltd.com at least partially shares its name servers with other domains, for instance schwanscompany.com, craftinghabits.com, jonpalmergolfpro.co.uk, ilnidocc.sa.edu.au and msnhotmial.com.

Host names with two IPs: ns1-08.azure-dns.com points to 2603:1061:0:700::8 and 13.107.236.8; ns4-08.azure-dns.info points to 2620:1ec:bda:700::8 and 208.84.5.8; ns2-08.azure-dns.net points to 2620:1ec:8ec:700::8 and 150.171.21.8; ns3-08.azure-dns.org points to 2a01:111:4000:700::8 and 204.14.183.8.

Mail Servers

yellowbookltd.com is served by a single mail server, yellowbookltd-com.mail.protection.outlook.com.

The host name yellowbookltd-com.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca04::c, 2a01:111:f403:ca04::e, 2a01:111:f403:ca09::1, 2a01:111:f403:ca09::9, 52.101.68.25, 52.101.68.32, 52.101.68.39 and 52.101.73.15.

yellowbookltd.com - robtex.com