`bookcodex.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:b5d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a5b6^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.93^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.165.182^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`danica.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26bb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`danica.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`danica.ns.cloudflare.com`
		A	108.162.194.187^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	162.159.38.187^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	172.64.34.187^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
NS	`ray.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ray.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ray.ns.cloudflare.com`
		A	108.162.193.138^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	172.64.33.138^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	173.245.59.138^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.93, 172.67.165.182
		IPv6 hints	2606:4700:3035::6815:b5d, 2606:4700:3035::ac43:a5b6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOA	`danica.ns.cloudflare.com`dns@cloudflare.com serial=2407981108

`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=1785954379

Same first word

bookcodex.com

Similar names

codexbook.net

codexbook.pages.dev

codexbook.com

codexbook.org

DNS History

26 records (6 active, 20 former)

●NSdanica.ns.cloudflare.com2026-06-26 → 2026-08-05 · 3 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
● 2026-08-05 18:47:46

○NSns.udag.de2017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

○NSns.udag.net2017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

○NSns.udag.org2017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

○NSns1.swva.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 21:19:28
○ 2015-06-08 22:45:00
○ 2026-08-05 18:47:46

○NSns2.swva.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 21:19:28
○ 2015-06-08 22:45:00
○ 2026-08-05 18:47:46

○NSns27.domaincontrol.com2015-06-08 → 2016-03-29 · 5 obs

○ 2008-03-15 21:19:28
● 2015-06-08 22:45:00
● 2016-03-29 07:27:42
○ 2016-07-18 23:14:08
○ 2026-08-05 18:47:46

○NSns28.domaincontrol.com2015-06-08 → 2016-03-29 · 5 obs

○ 2008-03-15 21:19:28
● 2015-06-08 22:45:00
● 2016-03-29 07:27:42
○ 2016-07-18 23:14:08
○ 2026-08-05 18:47:46

●NSray.ns.cloudflare.com2026-06-26 → 2026-08-05 · 3 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
● 2026-08-05 18:47:46

○MXmailstore1.secureserver.net2015-06-08 → 2016-03-29 · 5 obs

○ 2008-03-15 21:19:28
● 2015-06-08 22:45:00
● 2016-03-29 07:27:42
○ 2016-07-18 23:14:08
○ 2026-08-05 18:47:46

○MXmx00.udag.de2017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

○MXmx01.udag.de2017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

○MXsmtp.secureserver.net2015-06-08 → 2016-03-29 · 5 obs

○ 2008-03-15 21:19:28
● 2015-06-08 22:45:00
● 2016-03-29 07:27:42
○ 2016-07-18 23:14:08
○ 2026-08-05 18:47:46

●A104.21.11.932026-06-26 → 2026-08-05 · 4 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
○ 2026-07-09 17:31:54
● 2026-08-05 18:47:46

●A172.67.165.1822026-06-26 → 2026-08-05 · 4 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
○ 2026-07-09 17:31:54
● 2026-08-05 18:47:46

○A184.168.221.392015-06-08 → 2016-03-29 · 5 obs

○ 2008-03-15 21:19:28
● 2015-06-08 22:45:00
● 2016-03-29 07:27:42
○ 2016-07-18 23:14:08
○ 2026-08-05 18:47:46

○A188.114.96.02026-07-09 → 2026-07-09 · 3 obs

○ 2026-06-26 22:19:26
● 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

○A188.114.97.02026-07-09 → 2026-07-09 · 3 obs

○ 2026-06-26 22:19:26
● 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

○A2606:4700:3030::ac43:a5b62026-06-26 → 2026-06-26 · 4 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
○ 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

○A2606:4700:3031::6815:b5d2026-06-26 → 2026-06-26 · 4 obs

○ 2020-03-05 21:00:38
● 2026-06-26 22:19:26
○ 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

●A2606:4700:3035::6815:b5d2026-08-05 → 2026-08-05 · 2 obs

○ 2026-07-09 17:31:54
● 2026-08-05 18:47:46

●A2606:4700:3035::ac43:a5b62026-08-05 → 2026-08-05 · 2 obs

○ 2026-07-09 17:31:54
● 2026-08-05 18:47:46

○A2a06:98c1:3120::2026-07-09 → 2026-07-09 · 3 obs

○ 2026-06-26 22:19:26
● 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

○A2a06:98c1:3121::2026-07-09 → 2026-07-09 · 3 obs

○ 2026-06-26 22:19:26
● 2026-07-09 17:31:54
○ 2026-08-05 18:47:46

○A66.37.69.2512008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 21:19:28
○ 2015-06-08 22:45:00
○ 2026-08-05 18:47:46

○A89.31.143.12017-03-31 → 2020-03-05 · 5 obs

○ 2016-07-18 23:14:08
● 2017-03-31 18:29:42
● 2020-03-05 21:00:38
○ 2026-06-26 22:19:26
○ 2026-08-05 18:47:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
bookcodex.com	ray.ns.cloudflare.com, danica.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.187

NS records: ray.ns.cloudflare.com, danica.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookcodex.com (unsigned zone)

⏱️ Timing

Total: 1016ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.165.182, 104.21.11.93`
AAAA	2	`2606:4700:3035::ac43:a5b6, 2606:4700:3035::6815:b5d`
NS	2	`danica.ns.cloudflare.com, ray.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`danica.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

bookcodex.com resolves to four IP addresses: 104.21.11.93, 172.67.165.182, 2606:4700:3035::6815:b5d and 2606:4700:3035::ac43:a5b6.

Two other host names, along with f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.f413dfea90b5.weridevietnam.com, dby0415.com and nnagency.com, also share IP numbers with bookcodex.com.

Name Servers

bookcodex.com uses two name servers for its delegation: danica.ns.cloudflare.com and ray.ns.cloudflare.com.

The domains tinylittleme.com, typingoo.com, getppcbetter.com and italianradio.eu share a common name server delegation with bookcodex.com.

bookcodex.com has at least partial name server overlap with other domains, such as fcommunity.ru, theshiver.net, priv.io and two others.

These name servers tend to appear together with the name servers adam.ns.cloudflare.com, marjory.ns.cloudflare.com and leonidas.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname danica.ns.cloudflare.com directs to 108.162.194.187, 162.159.38.187 and 172.64.34.187 along with 3 other IP addresses.

Hostname ray.ns.cloudflare.com directs to 108.162.193.138, 172.64.33.138 and 173.245.59.138 along with 3 other IP addresses.

bookcodex.com - robtex.com

bookcodex.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`bookcodex.com`

`com`