courseph.com - dns.ninja

`courseph.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9b08^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:3a1a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.58.26^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.8^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amit.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amit.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amit.ns.cloudflare.com`
		A	108.162.193.63^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	172.64.33.63^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	173.245.59.63^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
NS	`phoenix.ns.cloudflare.com`
		A	2606:4700:50::a29f:26c9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phoenix.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2c9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`phoenix.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22c9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`phoenix.ns.cloudflare.com`
		A	108.162.194.201^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phoenix.ns.cloudflare.com`
		A	162.159.38.201^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phoenix.ns.cloudflare.com`
		A	172.64.34.201^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phoenix.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.58.26, 172.67.155.8
		IPv6 hints	2606:4700:3032::ac43:9b08, 2606:4700:3034::6815:3a1a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=13, name=cloudflare-ech.com
SOA	`amit.ns.cloudflare.com`dns@cloudflare.com serial=2410821104

`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=1785998784

🔒 HSTS Preload (+subdomains)

Same first word

courseph.com

Similar names

DNS History

15 records (11 active, 4 former)

●NSamit.ns.cloudflare.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●NSphoenix.ns.cloudflare.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●MXeforward1.registrar-servers.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●MXeforward2.registrar-servers.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●MXeforward3.registrar-servers.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●MXeforward4.registrar-servers.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●MXeforward5.registrar-servers.com2026-07-31 → 2026-08-06 · 2 obs

● 2026-07-31 14:17:02
● 2026-08-06 06:50:28

●A104.21.58.262026-08-06 → 2026-08-06 · 3 obs

○ 2026-07-31 14:17:02
● 2026-08-06 06:50:26
● 2026-08-06 06:50:28

●A172.67.155.82026-08-06 → 2026-08-06 · 3 obs

○ 2026-07-31 14:17:02
● 2026-08-06 06:50:26
● 2026-08-06 06:50:28

○A188.114.96.02026-07-31 → 2026-07-31 · 3 obs

● 2026-07-31 14:17:02
○ 2026-08-06 06:50:26
○ 2026-08-06 06:50:28

○A188.114.97.02026-07-31 → 2026-07-31 · 3 obs

● 2026-07-31 14:17:02
○ 2026-08-06 06:50:26
○ 2026-08-06 06:50:28

●A2606:4700:3032::ac43:9b082026-08-06 → 2026-08-06 · 3 obs

○ 2026-07-31 14:17:02
● 2026-08-06 06:50:26
● 2026-08-06 06:50:28

●A2606:4700:3034::6815:3a1a2026-08-06 → 2026-08-06 · 3 obs

○ 2026-07-31 14:17:02
● 2026-08-06 06:50:26
● 2026-08-06 06:50:28

○A2a06:98c1:3120::2026-07-31 → 2026-07-31 · 3 obs

● 2026-07-31 14:17:02
○ 2026-08-06 06:50:26
○ 2026-08-06 06:50:28

○A2a06:98c1:3121::2026-07-31 → 2026-07-31 · 3 obs

● 2026-07-31 14:17:02
○ 2026-08-06 06:50:26
○ 2026-08-06 06:50:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
courseph.com	amit.ns.cloudflare.com, phoenix.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.63

NS records: amit.ns.cloudflare.com, phoenix.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseph.com (unsigned zone)

⏱️ Timing

Total: 177ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.155.8, 104.21.58.26`
AAAA	2	`2606:4700:3032::ac43:9b08, 2606:4700:3034::6815:3a1a`
NS	2	`amit.ns.cloudflare.com, phoenix.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amit.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

courseph.com resolves to four IP addresses: 104.21.58.26, 172.67.155.8, 2606:4700:3032::ac43:9b08 and 2606:4700:3034::6815:3a1a.

Among the host names that share IP numbers with courseph.com are atlaseletro.com.br, tiksp.vip, edi210.com and two others.

Name Servers

courseph.com is delegated to two name servers: amit.ns.cloudflare.com and phoenix.ns.cloudflare.com.

courseph.com has the same name server delegation as a number of other domains, such as tiktokverified.com, tiktokcheck.com, habeer3.co.il and two more.

courseph.com shares at least some of its name servers with other domains, including leguinastore.com.co, gzt26.com, dinle.az and two others.

These name servers are frequently paired with the name servers lamar.ns.cloudflare.com, margo.ns.cloudflare.com and raegan.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

amit.ns.cloudflare.com resolves to 108.162.193.63, 172.64.33.63, 173.245.59.63 and 3 other IP addresses.

phoenix.ns.cloudflare.com resolves to 108.162.194.201, 162.159.38.201, 172.64.34.201 and 3 other IP addresses.

Mail Servers

courseph.com is handled by five mail servers: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

courseph.com shares at least some of its mail servers with other domains — for example 924b2aa34436.info, terminu.com, realmarkhewitt.com and two more.

It is common for these mail servers to co-occur with eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com as mail servers.

Hosts that resolve to one IP address:

eforward1.registrar-servers.com points to 162.255.118.51.

eforward2.registrar-servers.com points to 162.255.118.52.

eforward3.registrar-servers.com points to 162.255.118.51.

eforward4.registrar-servers.com points to 162.255.118.52.

eforward5.registrar-servers.com points to 162.255.118.51.

eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com all direct to 162.255.118.51.

eforward2.registrar-servers.com and eforward4.registrar-servers.com are host names that each point to 162.255.118.52 IP addresses.