`gdbtutorial.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:5294^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9eaf^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.82.148^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.175^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alan.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b39^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c139^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2139^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alan.ns.cloudflare.com`
		A	108.162.193.57^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alan.ns.cloudflare.com`
		A	172.64.33.57^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alan.ns.cloudflare.com`
		A	173.245.59.57^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alan.ns.cloudflare.com`
NS	`chloe.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c055^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chloe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2055^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chloe.ns.cloudflare.com`
		A	108.162.192.85^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	172.64.32.85^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	173.245.58.85^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
MX	`us2.mx1.mailhostbox.com` ⭐
		A	162.215.3.26^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-3-26.unifiedlayer.com`
MX	`us2.mx2.mailhostbox.com` ⭐
		A	162.215.2.27^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-2-27.unifiedlayer.com`
MX	`us2.mx3.mailhostbox.com` ⭐
		A	162.215.3.25^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-3-25.unifiedlayer.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.82.148, 172.67.158.175
		IPv6 hints	2606:4700:3033::6815:5294, 2606:4700:3037::ac43:9eaf
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=92, name=cloudflare-ech.com
SOA	`alan.ns.cloudflare.com`dns@cloudflare.com serial=2406697057

`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=1781314243

Same first word

gdbtutorial.com

DNS History

20 records (9 active, 11 former)

●NSalan.ns.cloudflare.com2026-02-27 → 2026-06-13 · 3 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
● 2026-06-13 02:00:20

●NSchloe.ns.cloudflare.com2026-02-27 → 2026-06-13 · 3 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
● 2026-06-13 02:00:20

○NSns1.linode.com2016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

○NSns2.linode.com2016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

○NSns3.linode.com2016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

○NSns4.linode.com2016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

○NSns5.linode.com2016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

●MXus2.mx1.mailhostbox.com2016-08-08 → 2026-06-13 · 2 obs

● 2016-08-08 08:36:52
● 2026-06-13 02:00:20

●MXus2.mx2.mailhostbox.com2016-08-08 → 2026-06-13 · 2 obs

● 2016-08-08 08:36:52
● 2026-06-13 02:00:20

●MXus2.mx3.mailhostbox.com2016-08-08 → 2026-06-13 · 2 obs

● 2016-08-08 08:36:52
● 2026-06-13 02:00:20

●A104.21.82.1482026-03-25 → 2026-06-13 · 7 obs

○ 2026-02-27 15:22:16
● 2026-03-25 13:58:30
● 2026-03-26 19:01:28
○ 2026-03-28 14:29:00
○ 2026-04-22 01:33:38
● 2026-05-20 06:55:10
● 2026-06-13 02:00:20

●A172.67.158.1752026-03-25 → 2026-06-13 · 7 obs

○ 2026-02-27 15:22:16
● 2026-03-25 13:58:30
● 2026-03-26 19:01:28
○ 2026-03-28 14:29:00
○ 2026-04-22 01:33:38
● 2026-05-20 06:55:10
● 2026-06-13 02:00:20

○A188.114.96.02026-02-27 → 2026-04-22 · 8 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
○ 2026-03-25 13:58:30
○ 2026-03-26 19:01:28
● 2026-03-28 14:29:00
● 2026-04-22 01:33:38
○ 2026-05-20 06:55:10
○ 2026-06-13 02:00:20

○A188.114.97.02026-02-27 → 2026-04-22 · 8 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
○ 2026-03-25 13:58:30
○ 2026-03-26 19:01:28
● 2026-03-28 14:29:00
● 2026-04-22 01:33:38
○ 2026-05-20 06:55:10
○ 2026-06-13 02:00:20

○A23.239.18.1312016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

○A2600:3c02::f03c:91ff:fe73:78562016-08-08 → 2020-01-06 · 4 obs

● 2016-08-08 08:36:52
● 2020-01-06 11:49:16
○ 2026-02-27 15:22:16
○ 2026-06-13 02:00:20

●A2606:4700:3033::6815:52942026-03-25 → 2026-06-13 · 7 obs

○ 2026-02-27 15:22:16
● 2026-03-25 13:58:30
● 2026-03-26 19:01:28
○ 2026-03-28 14:29:00
○ 2026-04-22 01:33:38
● 2026-05-20 06:55:10
● 2026-06-13 02:00:20

●A2606:4700:3037::ac43:9eaf2026-03-25 → 2026-06-13 · 7 obs

○ 2026-02-27 15:22:16
● 2026-03-25 13:58:30
● 2026-03-26 19:01:28
○ 2026-03-28 14:29:00
○ 2026-04-22 01:33:38
● 2026-05-20 06:55:10
● 2026-06-13 02:00:20

○A2a06:98c1:3120::2026-02-27 → 2026-04-22 · 8 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
○ 2026-03-25 13:58:30
○ 2026-03-26 19:01:28
● 2026-03-28 14:29:00
● 2026-04-22 01:33:38
○ 2026-05-20 06:55:10
○ 2026-06-13 02:00:20

○A2a06:98c1:3121::2026-02-27 → 2026-04-22 · 8 obs

○ 2020-01-06 11:49:16
● 2026-02-27 15:22:16
○ 2026-03-25 13:58:30
○ 2026-03-26 19:01:28
● 2026-03-28 14:29:00
● 2026-04-22 01:33:38
○ 2026-05-20 06:55:10
○ 2026-06-13 02:00:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
gdbtutorial.com	chloe.ns.cloudflare.com, alan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.57

NS records: chloe.ns.cloudflare.com, alan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gdbtutorial.com (unsigned zone)

⏱️ Timing

Total: 261ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.158.175, 104.21.82.148`
AAAA	2	`2606:4700:3037::ac43:9eaf, 2606:4700:3033::6815:5294`
NS	2	`alan.ns.cloudflare.com, chloe.ns.cloudflare.com`
MX	3	`us2.mx1.mailhostbox.com (pri: 10), us2.mx2.mailhostbox.com (pri: 10)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alan.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

gdbtutorial.com points to four IP numbers: 104.21.82.148, 172.67.158.175, 2606:4700:3033::6815:5294 and 2606:4700:3037::ac43:9eaf.

Two other host names, along with mail.myhomewarrantyprofessional.com, i.hdrezka.info and lilac-ave.com, also share IP numbers with gdbtutorial.com.

Name Servers

Two name servers handle the delegation for gdbtutorial.com: alan.ns.cloudflare.com and chloe.ns.cloudflare.com.

gdbtutorial.com shares its NS records with other domains, for example keyrun.net, fallonconsultants.com, synergyixs.com and two others.

gdbtutorial.com has at least partial name server overlap with other domains, such as 6396o.com, nyegroup.org, airshooting.it and two others.

It is common to see these name servers used together with name servers patryk.ns.cloudflare.com and jonah.ns.cloudflare.com.

DNS names with 6 IP addresses:

alan.ns.cloudflare.com resolves to 108.162.193.57, 172.64.33.57 and 173.245.59.57 among others, with 3 other IP addresses in total.

chloe.ns.cloudflare.com resolves to 108.162.192.85, 172.64.32.85 and 173.245.58.85 among others, with 3 other IP addresses in total.

Mail Servers

gdbtutorial.com has three mail servers: us2.mx1.mailhostbox.com, us2.mx2.mailhostbox.com and us2.mx3.mailhostbox.com.

There is at least a partial MX overlap between gdbtutorial.com and other domains, including pudu.ca, rakeshtanna.com, reluctantscribe.com and two others.

These mail servers tend to appear in combination with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 6 others.

us2.mx1.mailhostbox.com points to 162.215.3.26; us2.mx2.mailhostbox.com points to 162.215.2.27; us2.mx3.mailhostbox.com points to 162.215.3.25 — each hostname maps to exactly one IP address.

gdbtutorial.com - robtex.com

gdbtutorial.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

`gdbtutorial.com`

`com`