dotnetcoretutorials.com - dns.ninja

`dotnetcoretutorials.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:d94c^{Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2368^{Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.104^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.217.76^{Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`guss.ns.cloudflare.com` ⭐
NS	`kia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab3^{Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2803:f800:50::6ca2:c0b3^{Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
		A	2a06:98c1:50::ac40:20b3^{Cloudflare2a06:98c1:50::/45}
		A	108.162.192.179^{Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.179^{Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.179^{Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=-eZ9Lcmu2vsAMPcXhi7oRLF8gLHDWPI65lX5_otb1U0`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.104, 172.67.217.76
		IPv6 hints	2606:4700:3035::ac43:d94c, 2606:4700:3036::6815:2368
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`guss.ns.cloudflare.com`dns@cloudflare.com serial=2406750123

`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=1783022566

Subdomains

www.dotnetcoretutorials.com

Same first word

dotnetcoretutorials.com

DNS History

25 records (11 active, 14 former)

○NSdns1.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○NSdns2.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

●NSguss.ns.cloudflare.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●NSkia.ns.cloudflare.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●MXalt1.aspmx.l.google.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●MXalt2.aspmx.l.google.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●MXalt3.aspmx.l.google.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●MXalt4.aspmx.l.google.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

●MXaspmx.l.google.com2026-02-25 → 2026-07-02 · 3 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-07-02 20:13:54

○MXeforward1.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○MXeforward2.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○MXeforward3.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○MXeforward4.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○MXeforward5.registrar-servers.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

●A104.21.35.1042026-06-10 → 2026-07-02 · 3 obs

○ 2026-05-07 04:55:50
● 2026-06-10 22:05:52
● 2026-07-02 20:13:54

○A162.144.18.1612017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 18:20:40
○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

●A172.67.217.762026-06-10 → 2026-07-02 · 3 obs

○ 2026-05-07 04:55:50
● 2026-06-10 22:05:52
● 2026-07-02 20:13:54

○A2600:1f10:4c55:e23d:5d5b:8bb5:8ae2:1fff2026-02-25 → 2026-04-16 · 8 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-03-23 20:41:50
○ 2026-03-24 22:26:44
○ 2026-03-25 04:37:06
● 2026-04-16 23:04:22
○ 2026-05-07 04:55:50
○ 2026-07-02 20:13:54

○A2600:1f13:393:63e:d83b:f450:487:59b62026-02-25 → 2026-07-02 · 2 obs

○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

●A2606:4700:3035::ac43:d94c2026-06-10 → 2026-07-02 · 3 obs

○ 2026-05-07 04:55:50
● 2026-06-10 22:05:52
● 2026-07-02 20:13:54

●A2606:4700:3036::6815:23682026-06-10 → 2026-07-02 · 3 obs

○ 2026-05-07 04:55:50
● 2026-06-10 22:05:52
● 2026-07-02 20:13:54

○A2a05:d014:776:a63e:ceb:15ad:bbb7:6a9d2026-03-24 → 2026-05-07 · 7 obs

○ 2026-03-23 20:41:50
● 2026-03-24 22:26:44
● 2026-03-25 04:37:06
○ 2026-04-16 23:04:22
● 2026-05-07 04:55:50
○ 2026-06-10 22:05:52
○ 2026-07-02 20:13:54

○A35.155.180.2182026-02-25 → 2026-07-02 · 2 obs

○ 2026-02-25 09:26:40
○ 2026-07-02 20:13:54

○A52.57.221.1212026-03-24 → 2026-05-07 · 7 obs

○ 2026-03-23 20:41:50
● 2026-03-24 22:26:44
● 2026-03-25 04:37:06
○ 2026-04-16 23:04:22
● 2026-05-07 04:55:50
○ 2026-06-10 22:05:52
○ 2026-07-02 20:13:54

○A54.85.8.2292026-02-25 → 2026-04-16 · 8 obs

○ 2017-01-04 18:20:40
● 2026-02-25 09:26:40
● 2026-03-23 20:41:50
○ 2026-03-24 22:26:44
○ 2026-03-25 04:37:06
● 2026-04-16 23:04:22
○ 2026-05-07 04:55:50
○ 2026-07-02 20:13:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dotnetcoretutorials.com	guss.ns.cloudflare.com, kia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.179

NS records: guss.ns.cloudflare.com, kia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dotnetcoretutorials.com (unsigned zone)

⏱️ Timing

Total: 3793ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.217.76, 104.21.35.104`
AAAA	2	`2606:4700:3032::6815:2368, 2606:4700:3034::ac43:d94c`
NS	2	`guss.ns.cloudflare.com, kia.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=-eZ9Lcmu2vsAMPc`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`guss.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

dotnetcoretutorials.com serves as the parent of www.dotnetcoretutorials.com.

IP Addresses

dotnetcoretutorials.com has four IP addresses: 104.21.35.104, 172.67.217.76, 2606:4700:3035::ac43:d94c and 2606:4700:3036::6815:2368.

Name Servers

dotnetcoretutorials.com uses two name servers for its delegation: guss.ns.cloudflare.com and kia.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname kia.ns.cloudflare.com directs to 108.162.192.179, 172.64.32.179 and 173.245.58.179 along with 3 other IP addresses.

Mail Servers

Mail for dotnetcoretutorials.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com directs traffic to 142.251.179.26 and 2607:f8b0:4004:c1f::1a.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.