`leanbooks.us`

DNSSEC	⚠️ Not signed
A	199.34.228.76^{🇺🇸 WEEBLY199.34.228.0/24}
		PTR	`pages-custom-28.weebly.com`
NS	`dns156.a.register.com` ⭐ ⚠️ Not in parent delegation
		A	216.21.231.156^{🇺🇸 Jacksonville216.21.231.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns156.a.register.com`
NS	`dns043.c.register.com` ⚠️ Not in parent delegation
		A	216.21.235.43^{🇺🇸 Jacksonville216.21.234.0/23 NF ATL SUBNETS}
			PTR	`dns043.c.register.com`
NS	`dns083.d.register.com` ⚠️ Not in parent delegation
		A	216.21.236.83^{🇺🇸 Jacksonville216.21.236.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns083.d.register.com`
NS	`dns1.register.com` ⚠️ Not in zone NS records
		A	162.159.27.248^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`dns132.b.register.com` ⚠️ Not in parent delegation
		A	216.21.232.132^{🇺🇸 Jacksonville216.21.232.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns132.b.register.com`
NS	`dns2.register.com` ⚠️ Not in zone NS records
		A	162.159.26.197^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c0d::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dl-in-f26.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.27^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:1015::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f26.1e100.net`
		A	172.253.135.27^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f26.1e100.net`
SOA	`dns156.a.register.com`root@register.com 2024-08-14 #4

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1778669551

Same first word

leanbooks.us

Similar names

lansebook.com

lanebooks.com

koolbeans.us

DNS History

12 records (12 active, 0 former)

●NSdns043.c.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●NSdns083.d.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●NSdns1.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●NSdns132.b.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●NSdns156.a.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●NSdns2.register.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●MXalt1.aspmx.l.google.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●MXalt2.aspmx.l.google.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●MXalt3.aspmx.l.google.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●MXalt4.aspmx.l.google.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●MXaspmx.l.google.com2026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

●A199.34.228.762026-05-07 → 2026-05-13 · 2 obs

● 2026-05-07 11:48:50
● 2026-05-13 11:31:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	m.cctld.us, k.cctld.us, b.cctld.us, x.cctld.us...	-
leanbooks.us	dns2.register.com, dns1.register.com	-

✅ Authoritative Response

Server:162.159.26.197

NS records: dns2.register.com, dns1.register.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leanbooks.us (unsigned zone)

⏱️ Timing

Total: 993ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`199.34.228.76`
NS	4	`dns043.c.register.com, dns083.d.register.com...`
MX	5	`alt1.aspmx.l.google.com (pri: 5), alt3.aspmx.l.google.com (pri: 10)...`
SOA	1	`dns156.a.register.com root.register.com`