`isc.training`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4aa1^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:9fde^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.74.161^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.159.222^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alice.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a3c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c03c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alice.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:203c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alice.ns.cloudflare.com`
		A	108.162.192.60^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	172.64.32.60^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	173.245.58.60^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
NS	`quentin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c07^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c307^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`quentin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2307^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`quentin.ns.cloudflare.com`
		A	108.162.195.7^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	162.159.44.7^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	172.64.35.7^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
MX	`_dc-mx.2ed3695909f7.isc.training` ⭐
TXT	`google-site-verification=KuERBXGBAZa97Eb0JsXSmf9hTsXKHEDpzC7HCNkpfVA`
TXT	`google-site-verification=hztQuvbrCuuySIz4b9a9pifTgmiVyQ0sQTxWVetOKU4`
TXT	`v=spf1 +a +mx +ip4:65.108.205.151+ip4:94.23.69.198 +include:_spf.mailersend.n...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.74.161, 172.67.159.222
		IPv6 hints	2606:4700:3030::6815:4aa1, 2606:4700:3036::ac43:9fde
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=196, name=cloudflare-ech.com
SOA	`alice.ns.cloudflare.com`dns@cloudflare.com serial=2407020310

`training`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.training` ⭐
	NS	`v0n1.nic.training`
	NS	`v0n2.nic.training`
	NS	`v0n3.nic.training`
	NS	`v2n0.nic.training`
	NS	`v2n1.nic.training`
	SOA	`v0n0.nic.training`hostmaster@donuts.email serial=1783255416

🔒 HSTS Preload (+subdomains)

Same first word

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DNS History

7 records (7 active, 0 former)

●NSalice.ns.cloudflare.com2026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●NSquentin.ns.cloudflare.com2026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●MX_dc-mx.2ed3695909f7.isc.training2026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●A104.21.74.1612026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●A172.67.159.2222026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●A2606:4700:3030::6815:4aa12026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

●A2606:4700:3036::ac43:9fde2026-07-03 → 2026-07-05 · 2 obs

● 2026-07-03 12:40:24
● 2026-07-05 12:54:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
training	v2n0.nic.training, v2n1.nic.training, v0n2.nic.training, v0n0.nic.training...	12 records
isc.training	alice.ns.cloudflare.com, quentin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.60

NS records: alice.ns.cloudflare.com, quentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isc.training (unsigned zone)

⏱️ Timing

Total: 977ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.159.222, 104.21.74.161`
AAAA	2	`2606:4700:3036::ac43:9fde, 2606:4700:3030::6815:4aa1`
NS	2	`alice.ns.cloudflare.com, quentin.ns.cloudflare.com`
MX	1	`_dc-mx.2ed3695909f7.isc.training (pri: 0`
TXT	3	`google-site-verification=KuERBXGBAZa97Eb, google-site-verification=hztQuvbrCuuySIz...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alice.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.training, v0n1.nic.training, v0n2.nic.training...)

Analysis

IP Addresses

isc.training has four IP addresses: 104.21.74.161, 172.67.159.222, 2606:4700:3030::6815:4aa1 and 2606:4700:3036::ac43:9fde.

Among the host names that share IP numbers with isc.training are thethirdeye.com, banks.tips, mail.congresodesaludmental.com.mx and two others.

Name Servers

isc.training uses two name servers for its delegation: alice.ns.cloudflare.com and quentin.ns.cloudflare.com.

isc.training shares its name server configuration with other domains, including atcfloorsanddoors.com, psychotherapycourses.com and hoox.tv.

isc.training shares at least some of its name servers with other domains, including avenuebistro.gr, mellstroygamer.uno, zeemedical.com and two others.

These name servers are frequently paired with the name servers lia.ns.cloudflare.com, princess.ns.cloudflare.com and arushi.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname alice.ns.cloudflare.com directs to 108.162.192.60, 172.64.32.60 and 173.245.58.60 along with 3 other IP addresses.

Hostname quentin.ns.cloudflare.com directs to 108.162.195.7, 162.159.44.7 and 172.64.35.7 along with 3 other IP addresses.

Mail Servers

isc.training routes its mail through a single mail server, _dc-mx.2ed3695909f7.isc.training.

isc.training - robtex.com

isc.training

training

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

Mail Servers

`isc.training`

`training`