`claude-code-tutorial.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:556d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:cca2^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.109^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.204.162^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`barbara.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`barbara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`barbara.ns.cloudflare.com`
		A	108.162.192.248^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	172.64.32.248^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	173.245.58.248^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
NS	`cory.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b5d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cory.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cory.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cory.ns.cloudflare.com`
		A	108.162.193.93^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cory.ns.cloudflare.com`
		A	172.64.33.93^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cory.ns.cloudflare.com`
		A	173.245.59.93^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cory.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.109, 172.67.204.162
		IPv6 hints	2606:4700:3035::6815:556d, 2606:4700:3035::ac43:cca2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com
SOA	`barbara.ns.cloudflare.com`dns@cloudflare.com serial=2400764421

`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=1776091722

Same first word

claude-code-tutorial.com

DNS History

6 records (6 active, 0 former)

●NSbarbara.ns.cloudflare.com2026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

●NScory.ns.cloudflare.com2026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

●A104.21.85.1092026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

●A172.67.204.1622026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

●A2606:4700:3035::6815:556d2026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

●A2606:4700:3035::ac43:cca22026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:34:40
● 2026-04-13 15:05:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...	-
claude-code-tutorial.com	cory.ns.cloudflare.com, barbara.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.93

NS records: cory.ns.cloudflare.com, barbara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for claude-code-tutorial.com (unsigned zone)

⏱️ Timing

Total: 165ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.85.109, 172.67.204.162`
AAAA	2	`2606:4700:3035::ac43:cca2, 2606:4700:3035::6815:556d`
NS	2	`barbara.ns.cloudflare.com, cory.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`barbara.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

claude-code-tutorial.com resolves to four IP numbers: 2606:4700:3035::6815:556d, 2606:4700:3035::ac43:cca2, 104.21.85.109 and 172.67.204.162.

other host names for instance herringmd.com, highrisefinancial.com, bb479.com, top-site-streaming.fr and dthq.org share IP numbers with claude-code-tutorial.com.

Name Servers

claude-code-tutorial.com is delegated to two name servers: barbara.ns.cloudflare.com and cory.ns.cloudflare.com.

claude-code-tutorial.com shares the same name server setup as other domains, for example thefamily(0x736578)tube.com, codingstream.org, livcity.com, sendstar.com and idre.am.

claude-code-tutorial.com at least partially shares name servers with other domains, for instance elburnlions.com, eleven.org, ppsfs.com.hk, proeflokaalbakker.nl and ouja.com.

These name servers are commonly used with rodney.ns.cloudflare.com, trevor.ns.cloudflare.com and wally.ns.cloudflare.com.

Host names with six IP numbers:

barbara.ns.cloudflare.com points to: 2606:4700:50::adf5:3af8, 2803:f800:50::6ca2:c0f8, 2a06:98c1:50::ac40:20f8, 108.162.192.248, 172.64.32.248 and 173.245.58.248; cory.ns.cloudflare.com points to: 2606:4700:58::adf5:3b5d, 2803:f800:50::6ca2:c15d, 2a06:98c1:50::ac40:215d, 108.162.193.93, 172.64.33.93 and 173.245.59.93.

claude-code-tutorial.com - robtex.com