coursemith.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`coursemith.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:43e9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:b67d^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.67.233^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.182.125^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dolly.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a62^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c062^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dolly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2062^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dolly.ns.cloudflare.com`
		A	108.162.192.98^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	172.64.32.98^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	173.245.58.98^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
NS	`kellen.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kellen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kellen.ns.cloudflare.com`
		A	108.162.195.160^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	162.159.44.160^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	172.64.35.160^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.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	104.21.67.233, 172.67.182.125
		IPv6 hints	2606:4700:3033::6815:43e9, 2606:4700:3036::ac43:b67d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOA	`dolly.ns.cloudflare.com`dns@cloudflare.com serial=2412091744

`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=1786963059

Same first word

coursemith.com

Similar names

DNS History

15 records (11 active, 4 former)

●NSdolly.ns.cloudflare.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●NSkellen.ns.cloudflare.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●MXeforward1.registrar-servers.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●MXeforward2.registrar-servers.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●MXeforward3.registrar-servers.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●MXeforward4.registrar-servers.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●MXeforward5.registrar-servers.com2026-08-15 → 2026-08-17 · 2 obs

● 2026-08-15 20:59:20
● 2026-08-17 11:01:20

●A104.21.67.2332026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-15 20:59:20
● 2026-08-17 11:01:18
● 2026-08-17 11:01:20

●A172.67.182.1252026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-15 20:59:20
● 2026-08-17 11:01:18
● 2026-08-17 11:01:20

○A188.114.96.02026-08-15 → 2026-08-15 · 3 obs

● 2026-08-15 20:59:20
○ 2026-08-17 11:01:18
○ 2026-08-17 11:01:20

○A188.114.97.02026-08-15 → 2026-08-15 · 3 obs

● 2026-08-15 20:59:20
○ 2026-08-17 11:01:18
○ 2026-08-17 11:01:20

●A2606:4700:3033::6815:43e92026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-15 20:59:20
● 2026-08-17 11:01:18
● 2026-08-17 11:01:20

●A2606:4700:3036::ac43:b67d2026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-15 20:59:20
● 2026-08-17 11:01:18
● 2026-08-17 11:01:20

○A2a06:98c1:3120::42026-08-15 → 2026-08-15 · 3 obs

● 2026-08-15 20:59:20
○ 2026-08-17 11:01:18
○ 2026-08-17 11:01:20

○A2a06:98c1:3121::42026-08-15 → 2026-08-15 · 3 obs

● 2026-08-15 20:59:20
○ 2026-08-17 11:01:18
○ 2026-08-17 11:01:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coursemith.com	dolly.ns.cloudflare.com, kellen.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.160

NS records: dolly.ns.cloudflare.com, kellen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursemith.com (unsigned zone)

⏱️ Timing

Total: 251ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.182.125, 104.21.67.233`
AAAA	2	`2606:4700:3036::ac43:b67d, 2606:4700:3033::6815:43e9`
NS	2	`dolly.ns.cloudflare.com, kellen.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	`dolly.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

coursemith.com directs to four IP numbers, which are 104.21.67.233, 172.67.182.125, 2606:4700:3033::6815:43e9 and 2606:4700:3036::ac43:b67d.

Two other host names, along with kurnia898kaya.com, ptitvl.com and felixthomson.com, also share IP numbers with coursemith.com.

Name Servers

coursemith.com is served by two delegated name servers, dolly.ns.cloudflare.com and kellen.ns.cloudflare.com.

coursemith.com shares its NS records with other domains, for example vn558.com, vn516.com, blackops-official.ink and two others.

There is at least partial name server overlap between coursemith.com and other domains — nirsc.com, clin-tech.co.uk, mingduty.com and two more among them.

These name servers frequently co-occur with the name servers dom.ns.cloudflare.com and poppy.ns.cloudflare.com.

DNS names with 6 IP addresses:

dolly.ns.cloudflare.com carries IP addresses 108.162.192.98, 172.64.32.98 and 173.245.58.98, with 3 other addresses beyond those.

kellen.ns.cloudflare.com carries IP addresses 108.162.195.160, 162.159.44.160 and 172.64.35.160, with 3 other addresses beyond those.

Mail Servers

Five mail servers handle coursemith.com: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

There is at least a partial MX overlap between coursemith.com and other domains, including james.party, africanyellowpages.net, ciwilaa.com and two others.

eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com are mail servers that frequently appear together with these mail servers.

Host names that point to one IP address:

eforward1.registrar-servers.com points to the IP address 162.255.118.51.

eforward2.registrar-servers.com points to the IP address 162.255.118.52.

eforward3.registrar-servers.com points to the IP address 162.255.118.51.

eforward4.registrar-servers.com points to the IP address 162.255.118.52.

eforward5.registrar-servers.com points to the IP address 162.255.118.51.

Each of eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com resolves to 162.255.118.51.

These two host names — eforward2.registrar-servers.com and eforward4.registrar-servers.com — each point to 162.255.118.52 IP addresses.