`rocketsciencebook.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:5319^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d2e3^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.25^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.210.227^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`nena.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nena.ns.cloudflare.com`
		A	108.162.194.161^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	162.159.38.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	172.64.34.161^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.83.25, 172.67.210.227
		IPv6	2606:4700:3030::6815:5319, 2606:4700:3033::ac43:d2e3
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2399163085

`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=1775024597

Same first word

rocketsciencebook.com

DNS History

21 records (6 active, 15 former)

●NSharlan.ns.cloudflare.com2026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

●NSnena.ns.cloudflare.com2026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

○NSns07.domaincontrol.com2015-06-10 → 2016-04-14 · 4 obs

● 2015-06-10 09:56:54
● 2016-04-14 06:21:28
○ 2016-11-30 02:48:06
○ 2026-04-01 06:28:28

○NSns08.domaincontrol.com2015-06-10 → 2016-04-14 · 4 obs

● 2015-06-10 09:56:54
● 2016-04-14 06:21:28
○ 2016-11-30 02:48:06
○ 2026-04-01 06:28:28

○NSns41.domaincontrol.com2017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○NSns42.domaincontrol.com2017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○MXmailstore1.secureserver.net2015-06-10 → 2016-04-14 · 4 obs

● 2015-06-10 09:56:54
● 2016-04-14 06:21:28
○ 2016-11-30 02:48:06
○ 2026-04-01 06:28:28

○MXsmtp.secureserver.net2015-06-10 → 2016-04-14 · 4 obs

● 2015-06-10 09:56:54
● 2016-04-14 06:21:28
○ 2016-11-30 02:48:06
○ 2026-04-01 06:28:28

●A104.21.83.252026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

●A172.67.210.2272026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

○A184.168.221.312017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A184.168.221.392015-06-10 → 2016-04-14 · 4 obs

● 2015-06-10 09:56:54
● 2016-04-14 06:21:28
○ 2016-11-30 02:48:06
○ 2026-04-01 06:28:28

○A184.168.221.82017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A184.168.221.92017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

●A2606:4700:3030::6815:53192026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

●A2606:4700:3033::ac43:d2e32026-03-20 → 2026-04-01 · 3 obs

○ 2017-11-05 11:54:24
● 2026-03-20 18:00:36
● 2026-04-01 06:28:28

○A50.63.202.112017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A50.63.202.182017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A50.63.202.242017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A50.63.202.312017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

○A50.63.202.72017-11-05 → 2017-11-05 · 4 obs

○ 2016-11-30 02:48:06
● 2017-11-05 11:54:24
○ 2026-03-20 18:00:36
○ 2026-04-01 06:28:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net...	-
rocketsciencebook.com	nena.ns.cloudflare.com, harlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.161

NS records: nena.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rocketsciencebook.com (unsigned zone)

⏱️ Timing

Total: 323ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.210.227, 104.21.83.25`
AAAA	2	`2606:4700:3030::6815:5319, 2606:4700:3033::ac43:d2e3`
NS	2	`harlan.ns.cloudflare.com, nena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

rocketsciencebook.com resolves to four IPs: 2606:4700:3030::6815:5319, 2606:4700:3033::ac43:d2e3, 104.21.83.25 and 172.67.210.227.

Other host names, for instance igdamct.guru, www.citroendenizli.com, www.croydondentalcare.co.uk, gamerader.net and szzklc.com share IP numbers with rocketsciencebook.com.

Name Servers

rocketsciencebook.com has two name servers: harlan.ns.cloudflare.com and nena.ns.cloudflare.com.

rocketsciencebook.com shares the same name server setup as other domains, for example premier-sourcecu.com, nicolewarnerblog.com, feiniubus.com, visit(0x787878)videos.com and coulsonpritchard.com.

rocketsciencebook.com shares some name servers with other domains, for example ufaro8888.company, spinogambino-casino.ch, alucoils.com, safencingcenter.com and amwps.com.

These name servers are often used together with amalia.ns.cloudflare.com, emerson.ns.cloudflare.com and aida.ns.cloudflare.com.

Host names with six IP numbers: harlan.ns.cloudflare.com points to: 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250; nena.ns.cloudflare.com points to: 2606:4700:50::a29f:26a1, 2803:f800:50::6ca2:c2a1, 2a06:98c1:50::ac40:22a1, 108.162.194.161, 162.159.38.161 and 172.64.34.161.

rocketsciencebook.com - robtex.com