`db2tutorial.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:2175^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a255^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.33.117^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.85^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
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`
NS	`tia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tia.ns.cloudflare.com`
		A	108.162.192.229^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	172.64.32.229^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	173.245.58.229^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
MX	`mail.db2tutorial.com` ⭐
		A	2606:4700:3033::6815:2175^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2606:4700:3033::ac43:a255^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	104.21.33.117^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.67.162.85^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.33.117, 172.67.162.85
		IPv6 hints	2606:4700:3033::6815:2175, 2606:4700:3033::ac43:a255
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=121, name=cloudflare-ech.com
SOA	`cory.ns.cloudflare.com`dns@cloudflare.com serial=2398407309

`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=1776964896

Subdomains

mail.db2tutorial.com

Same first word

db2tutorial.com

DNS History

13 records (7 active, 6 former)

○NSbuy.internettraffic.com2015-07-18 → 2015-07-18 · 3 obs

● 2015-07-18 11:10:46
○ 2015-11-29 20:25:48
○ 2026-04-23 17:25:36

●NScory.ns.cloudflare.com2026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

○NSns1.bluehost.com2020-02-06 → 2020-02-06 · 4 obs

○ 2015-11-29 20:25:48
● 2020-02-06 18:03:12
○ 2026-02-15 01:19:24
○ 2026-04-23 17:25:36

○NSns2.bluehost.com2020-02-06 → 2020-02-06 · 4 obs

○ 2015-11-29 20:25:48
● 2020-02-06 18:03:12
○ 2026-02-15 01:19:24
○ 2026-04-23 17:25:36

○NSsell.internettraffic.com2015-07-18 → 2015-07-18 · 3 obs

● 2015-07-18 11:10:46
○ 2015-11-29 20:25:48
○ 2026-04-23 17:25:36

●NStia.ns.cloudflare.com2026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

●MXmail.db2tutorial.com2020-02-06 → 2026-04-23 · 2 obs

● 2020-02-06 18:03:12
● 2026-04-23 17:25:36

●A104.21.33.1172026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

○A162.241.244.1422020-02-06 → 2020-02-06 · 4 obs

○ 2015-11-29 20:25:48
● 2020-02-06 18:03:12
○ 2026-02-15 01:19:24
○ 2026-04-23 17:25:36

●A172.67.162.852026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

●A2606:4700:3033::6815:21752026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

●A2606:4700:3033::ac43:a2552026-02-15 → 2026-04-23 · 3 obs

○ 2020-02-06 18:03:12
● 2026-02-15 01:19:24
● 2026-04-23 17:25:36

○A69.172.201.2082015-07-18 → 2015-07-18 · 3 obs

● 2015-07-18 11:10:46
○ 2015-11-29 20:25:48
○ 2026-04-23 17:25:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net...	-
db2tutorial.com	cory.ns.cloudflare.com, tia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.229

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for db2tutorial.com (unsigned zone)

⏱️ Timing

Total: 147ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.33.117, 172.67.162.85`
AAAA	2	`2606:4700:3033::6815:2175, 2606:4700:3033::ac43:a255`
NS	2	`cory.ns.cloudflare.com, tia.ns.cloudflare.com`
MX	1	`mail.db2tutorial.com (pri: 0)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cory.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

mail.db2tutorial.com is a child of db2tutorial.com.

IP Addresses

db2tutorial.com refers to four IP numbers: 2606:4700:3033::6815:2175, 2606:4700:3033::ac43:a255, 104.21.33.117 and 172.67.162.85.

Other host names, for instance www.linuxgamecast.com, mr005.rajaalam89b.store, events.com.fj, brynotexil.my and linuxgamecast.com share IP numbers with db2tutorial.com.

Name Servers

db2tutorial.com's delegation uses two name servers: cory.ns.cloudflare.com and tia.ns.cloudflare.com.

db2tutorial.com uses the same name server setup as other domains, such as novataxis.net.au, csc-scs.com, limetaxis.com, sydneycabs.com.au and taxitech.com.au.

db2tutorial.com at least partially shares name servers with other domains, including dosuba.com, canadanlc.com, scrra.com, greensboroyp.com and typlaceee.win.

These name servers are commonly used with aria.ns.cloudflare.com, janet.ns.cloudflare.com and clara.ns.cloudflare.com.

Host names with six IP numbers:

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.

tia.ns.cloudflare.com points to 2606:4700:50::adf5:3ae5, 2803:f800:50::6ca2:c0e5, 2a06:98c1:50::ac40:20e5, 108.162.192.229, 172.64.32.229 and 173.245.58.229.

Mail Servers

A single mail server handles db2tutorial.com, mail.db2tutorial.com.

mail.db2tutorial.com maps to four IP numbers: 2606:4700:3033::6815:2175, 2606:4700:3033::ac43:a255, 104.21.33.117 and 172.67.162.85.

db2tutorial.com - robtex.com

db2tutorial.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`db2tutorial.com`

`com`