extcore.net - dns.ninja

`extcore.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:414^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:838d^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.20^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.141^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cass.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a51^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c051^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cass.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2051^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cass.ns.cloudflare.com`
		A	108.162.192.81^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	172.64.32.81^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	173.245.58.81^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
NS	`donald.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b9e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donald.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donald.ns.cloudflare.com`
		A	108.162.193.158^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	172.64.33.158^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	173.245.59.158^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.20, 172.67.131.141
		IPv6 hints	2606:4700:3030::6815:414, 2606:4700:3032::ac43:838d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOA	`cass.ns.cloudflare.com`dns@cloudflare.com serial=2408931874

`net`

	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=1784910582

Subdomains

www.extcore.net

Same first word

extcore.readthedocs.io

extcore.net

Similar names

coretex.cloud

coretex.co

coretex.xyz

coretex.co.jp

exocert.com

exector.com

exortec.de

recetox.org

coretex.com.au

coexert.com

ecotrex.nl

coxeter.com

xerotec.com

cerotex.com.tr

terexco.com

coxeter.de

recotex.com

xerotec.net

ecortex.de

exector.net

ceetrox.de

cerotex.com

excerto.com

coretex.ch

exector.se

ecortex.ca

recotex.it

coretex.se

coretex.uk

coretex.net

creotex.com

coretex.sk

certexo.com

coretex.de

xerotec.nl

coretex.com

recotex.de

coretex.ag

exortec.com

coretex.be

rexotec.de

DNS History

27 records (6 active, 21 former)

●NScass.ns.cloudflare.com2026-04-03 → 2026-07-24 · 3 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-07-24 16:40:00

●NSdonald.ns.cloudflare.com2026-04-03 → 2026-07-24 · 3 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-07-24 16:40:00

○NSnsa1.srv53.com2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsa1.srv53.net2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsa4.srv53.org2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsb1.srv53.org2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsb2.srv53.com2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsb4.srv53.net2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsc3.srv53.com2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsc3.srv53.net2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsc4.srv53.org2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsd2.srv53.com2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsd2.srv53.net2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○NSnsd2.srv53.org2016-03-15 → 2019-05-16 · 4 obs

● 2016-03-15 20:40:32
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○MXmx.ubrainians.com2016-03-15 → 2017-09-27 · 4 obs

● 2016-03-15 20:40:32
● 2017-09-27 01:33:38
○ 2019-05-16 05:27:40
○ 2026-07-24 16:40:00

●A104.21.4.202026-04-03 → 2026-07-24 · 6 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-05-27 11:22:50
○ 2026-06-27 23:32:22
● 2026-06-30 20:16:40
● 2026-07-24 16:40:00

○A13.93.106.2162017-09-27 → 2017-09-27 · 4 obs

○ 2016-11-29 00:15:32
● 2017-09-27 01:33:38
○ 2019-05-16 05:27:40
○ 2026-07-24 16:40:00

●A172.67.131.1412026-04-03 → 2026-07-24 · 6 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-05-27 11:22:50
○ 2026-06-27 23:32:22
● 2026-06-30 20:16:40
● 2026-07-24 16:40:00

○A188.114.96.02026-06-27 → 2026-06-27 · 5 obs

○ 2026-04-03 11:59:36
○ 2026-05-27 11:22:50
● 2026-06-27 23:32:22
○ 2026-06-30 20:16:40
○ 2026-07-24 16:40:00

○A188.114.97.02026-06-27 → 2026-06-27 · 5 obs

○ 2026-04-03 11:59:36
○ 2026-05-27 11:22:50
● 2026-06-27 23:32:22
○ 2026-06-30 20:16:40
○ 2026-07-24 16:40:00

●A2606:4700:3030::6815:4142026-06-30 → 2026-07-24 · 3 obs

○ 2026-06-27 23:32:22
● 2026-06-30 20:16:40
● 2026-07-24 16:40:00

●A2606:4700:3032::ac43:838d2026-04-03 → 2026-07-24 · 6 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-05-27 11:22:50
○ 2026-06-27 23:32:22
● 2026-06-30 20:16:40
● 2026-07-24 16:40:00

○A2606:4700:3036::6815:4142026-04-03 → 2026-05-27 · 5 obs

○ 2019-05-16 05:27:40
● 2026-04-03 11:59:36
● 2026-05-27 11:22:50
○ 2026-06-27 23:32:22
○ 2026-07-24 16:40:00

○A2a06:98c1:3120::2026-06-27 → 2026-06-27 · 5 obs

○ 2026-04-03 11:59:36
○ 2026-05-27 11:22:50
● 2026-06-27 23:32:22
○ 2026-06-30 20:16:40
○ 2026-07-24 16:40:00

○A2a06:98c1:3121::2026-06-27 → 2026-06-27 · 5 obs

○ 2026-04-03 11:59:36
○ 2026-05-27 11:22:50
● 2026-06-27 23:32:22
○ 2026-06-30 20:16:40
○ 2026-07-24 16:40:00

○A93.190.41.12019-05-16 → 2019-05-16 · 4 obs

○ 2017-09-27 01:33:38
● 2019-05-16 05:27:40
○ 2026-04-03 11:59:36
○ 2026-07-24 16:40:00

○A93.190.45.1542016-03-15 → 2016-11-29 · 4 obs

● 2016-03-15 20:40:32
● 2016-11-29 00:15:32
○ 2017-09-27 01:33:38
○ 2026-07-24 16:40:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net...	-
extcore.net	cass.ns.cloudflare.com, donald.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.158

NS records: cass.ns.cloudflare.com, donald.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for extcore.net (unsigned zone)

⏱️ Timing

Total: 990ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.131.141, 104.21.4.20`
AAAA	2	`2606:4700:3030::6815:414, 2606:4700:3032::ac43:838d`
NS	2	`cass.ns.cloudflare.com, donald.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cass.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

www.extcore.net is a subdomain of extcore.net.

IP Addresses

extcore.net directs to four IP numbers, which are 104.21.4.20, 172.67.131.141, 2606:4700:3030::6815:414 and 2606:4700:3032::ac43:838d.

ileyin.cn, dacapowebdevelopment.com, afrostyle.ru and two other host names share IP numbers with extcore.net.

Name Servers

extcore.net uses two name servers for its delegation: cass.ns.cloudflare.com and donald.ns.cloudflare.com.

extcore.net uses the same name servers as several other domains — among them happyvalentinesday.co.in, experced.fun, interrobang.consulting and two more.

The name servers of extcore.net overlap at least partially with those of other domains — among them (0x666170)(0x666170)desi.com, soletel.com.br, sparmax.ca and two more.

It is common to find these name servers alongside the name servers magnolia.ns.cloudflare.com, nitin.ns.cloudflare.com, josh.ns.cloudflare.com and two others.

Hostnames that resolve to 6 IP addresses:

Hostname cass.ns.cloudflare.com directs to 108.162.192.81, 172.64.32.81 and 173.245.58.81 along with 3 other IP addresses.

Hostname donald.ns.cloudflare.com directs to 108.162.193.158, 172.64.33.158 and 173.245.59.158 along with 3 other IP addresses.