courseya.com - dns.ninja

`courseya.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:184c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:d9c8^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.24.76^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.217.200^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gwen.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aa0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gwen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gwen.ns.cloudflare.com`
		A	108.162.192.160^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	172.64.32.160^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	173.245.58.160^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
NS	`theo.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b90^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c190^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`theo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2190^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`theo.ns.cloudflare.com`
		A	108.162.193.144^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	172.64.33.144^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	173.245.59.144^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
TXT	`google-site-verification=5ipbPZFqqkc7qbwFLgq7fVC9ka4_4sJaz2BGmCHvyHM`
TXT	`google-site-verification=qsGZM1b7X8JucihMDShVzlDXJcU5kyuuBm0gzkwZ8Vc`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.24.76, 172.67.217.200
		IPv6 hints	2606:4700:3030::6815:184c, 2606:4700:3030::ac43:d9c8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=110, name=cloudflare-ech.com
SOA	`gwen.ns.cloudflare.com`dns@cloudflare.com serial=2410093288

`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=1785580502

Same first word

courseya.com

Similar names

yourcase.com.ua

youscare.com

yourcase.com

yourcase.com.au

casoyeru.blogspot.com

yasucore.com

yourcase.jp

yourcase.ru

DNS History

16 records (6 active, 10 former)

○NSdns1.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

○NSdns2.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

●NSgwen.ns.cloudflare.com2026-02-20 → 2026-08-01 · 3 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-08-01 11:03:10

●NStheo.ns.cloudflare.com2026-02-20 → 2026-08-01 · 3 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-08-01 11:03:10

○MXeforward1.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

○MXeforward2.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

○MXeforward3.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

○MXeforward4.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

○MXeforward5.registrar-servers.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

●A104.21.24.762026-02-20 → 2026-08-01 · 3 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-08-01 11:03:10

○A172.104.182.1692019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 20:09:34
○ 2026-02-20 02:02:00
○ 2026-08-01 11:03:10

●A172.67.217.2002026-02-20 → 2026-08-01 · 3 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-08-01 11:03:10

●A2606:4700:3030::6815:184c2026-06-26 → 2026-08-01 · 3 obs

○ 2026-06-10 05:27:06
● 2026-06-26 10:05:06
● 2026-08-01 11:03:10

●A2606:4700:3030::ac43:d9c82026-06-26 → 2026-08-01 · 3 obs

○ 2026-06-10 05:27:06
● 2026-06-26 10:05:06
● 2026-08-01 11:03:10

○A2606:4700:3037::6815:184c2026-02-20 → 2026-06-10 · 5 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-06-10 05:27:06
○ 2026-06-26 10:05:06
○ 2026-08-01 11:03:10

○A2606:4700:3037::ac43:d9c82026-02-20 → 2026-06-10 · 5 obs

○ 2019-12-17 20:09:34
● 2026-02-20 02:02:00
● 2026-06-10 05:27:06
○ 2026-06-26 10:05:06
○ 2026-08-01 11:03:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net...	-
courseya.com	theo.ns.cloudflare.com, gwen.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.144

NS records: theo.ns.cloudflare.com, gwen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseya.com (unsigned zone)

⏱️ Timing

Total: 426ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.24.76, 172.67.217.200`
AAAA	2	`2606:4700:3030::ac43:d9c8, 2606:4700:3030::6815:184c`
NS	2	`gwen.ns.cloudflare.com, theo.ns.cloudflare.com`
TXT	2	`google-site-verification=5ipbPZFqqkc7qbw, google-site-verification=qsGZM1b7X8Jucih`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gwen.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

courseya.com points to the four IP addresses 104.21.24.76, 172.67.217.200, 2606:4700:3030::6815:184c and 2606:4700:3030::ac43:d9c8.

Two other host names, along with cpcontacts.vademia.com.mx, qianleyou.com and maxi(0x6675636b).com, also share IP numbers with courseya.com.

Name Servers

DNS delegation for courseya.com points to two name servers: gwen.ns.cloudflare.com and theo.ns.cloudflare.com.

courseya.com shares its NS records with other domains, for example aironeparapente.com, napamustangdays.com, middleburgumc.org and two others.

There is at least partial name server overlap between courseya.com and other domains — easytab.in, somi.is, stocksaudi.top and two more among them.

These name servers frequently co-occur with the name servers galilea.ns.cloudflare.com and aiden.ns.cloudflare.com.

DNS names with 6 IP addresses:

gwen.ns.cloudflare.com has IP addresses 108.162.192.160, 172.64.32.160 and 173.245.58.160, plus 3 other.

theo.ns.cloudflare.com has IP addresses 108.162.193.144, 172.64.33.144 and 173.245.59.144, plus 3 other.