`bluebookcap.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:82bf^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:389^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.3.137^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.130.191^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`isla.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c077^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`isla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2077^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`isla.ns.cloudflare.com`
		A	108.162.192.119^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	172.64.32.119^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	173.245.58.119^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
NS	`lynn.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bc9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lynn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lynn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lynn.ns.cloudflare.com`
		A	108.162.193.201^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lynn.ns.cloudflare.com`
		A	172.64.33.201^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lynn.ns.cloudflare.com`
		A	173.245.59.201^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lynn.ns.cloudflare.com`
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`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.3.137, 172.67.130.191
		IPv6	2606:4700:3031::ac43:82bf, 2606:4700:3034::6815:389
SOA	`isla.ns.cloudflare.com`dns@cloudflare.com serial=2398373968

`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=1774664172

Same first word

bluebookcap.com

DNS History

13 records (8 active, 5 former)

●NSisla.ns.cloudflare.com2026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●NSlynn.ns.cloudflare.com2026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

○NSns1.digitalocean.com2020-04-09 → 2020-04-09 · 3 obs

● 2020-04-09 02:22:18
○ 2026-03-17 15:45:34
○ 2026-03-28 02:34:38

○NSns2.digitalocean.com2020-04-09 → 2020-04-09 · 3 obs

● 2020-04-09 02:22:18
○ 2026-03-17 15:45:34
○ 2026-03-28 02:34:38

○NSns3.digitalocean.com2020-04-09 → 2020-04-09 · 3 obs

● 2020-04-09 02:22:18
○ 2026-03-17 15:45:34
○ 2026-03-28 02:34:38

○MXmail.bluebookcap.com2020-04-09 → 2020-04-09 · 3 obs

● 2020-04-09 02:22:18
○ 2026-03-17 15:45:34
○ 2026-03-28 02:34:38

●MXmx00.ionos.com2026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●MXmx01.ionos.com2026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●A104.21.3.1372026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●A172.67.130.1912026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●A2606:4700:3031::ac43:82bf2026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

●A2606:4700:3034::6815:3892026-03-17 → 2026-03-28 · 3 obs

○ 2020-04-09 02:22:18
● 2026-03-17 15:45:34
● 2026-03-28 02:34:38

○A68.183.121.212020-04-09 → 2020-04-09 · 3 obs

● 2020-04-09 02:22:18
○ 2026-03-17 15:45:34
○ 2026-03-28 02:34:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
bluebookcap.com	isla.ns.cloudflare.com, lynn.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.201

NS records: isla.ns.cloudflare.com, lynn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bluebookcap.com (unsigned zone)

⏱️ Timing

Total: 340ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.3.137, 172.67.130.191`
AAAA	2	`2606:4700:3031::ac43:82bf, 2606:4700:3034::6815:389`
NS	2	`isla.ns.cloudflare.com, lynn.ns.cloudflare.com`
MX	2	`mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`isla.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (isla.ns.cloudflare.com, isla.ns.cloudflare.com, isla.ns.cloudflare.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by bluebookcap.com: 2606:4700:3031::ac43:82bf, 2606:4700:3034::6815:389, 104.21.3.137 and 172.67.130.191.

other host names including 52977.cn, kaiyun2.tsmj.cn, 0316pc.com, riling.org and cp88866.com share IP numbers with bluebookcap.com.

Name Servers

bluebookcap.com is delegated to two name servers isla.ns.cloudflare.com and lynn.ns.cloudflare.com.

bluebookcap.com shares the same name server setup as other domains, for instance assetgroup.com.au, productdesignonline.com, assettraining.net, flexcareers.co.nz and goodlawproject.org.

bluebookcap.com at least partially shares name servers with other domains, for instance kidstay.com, nmjinhua.com, imailo.nl, insidetsf.org and vuelaalavida.com.

These name servers are commonly used with howard.ns.cloudflare.com, ophelia.ns.cloudflare.com and ian.ns.cloudflare.com.

Host names with six IP numbers:

Host name isla.ns.cloudflare.com points to: 2606:4700:50::adf5:3a77, 2803:f800:50::6ca2:c077, 2a06:98c1:50::ac40:2077, 108.162.192.119, 172.64.32.119 and 173.245.58.119.

Host name lynn.ns.cloudflare.com points to: 2606:4700:58::adf5:3bc9, 2803:f800:50::6ca2:c1c9, 2a06:98c1:50::ac40:21c9, 108.162.193.201, 172.64.33.201 and 173.245.59.201.

Mail Servers

Two mail servers handle bluebookcap.com: mx00.ionos.com and mx01.ionos.com.

bluebookcap.com shares the same mail server setup as other domains, for instance derrickc.com, erikgoebel.com, cappuccinomediagroup.com, mass-lift.com and austinhillcountryretreat.com.

bluebookcap.com shares mail servers with other domains to some extent, for instance friendsofscas.org.

Host names with one IP number:

mx00.ionos.com points to 74.208.5.3

mx01.ionos.com points to 74.208.5.21

bluebookcap.com - robtex.com

bluebookcap.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`bluebookcap.com`

`com`