`coursesite.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:8ddf^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5979^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.121^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.141.223^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clarissa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:267b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clarissa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c27b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clarissa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:227b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clarissa.ns.cloudflare.com`
		A	108.162.194.123^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clarissa.ns.cloudflare.com`
		A	162.159.38.123^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clarissa.ns.cloudflare.com`
		A	172.64.34.123^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clarissa.ns.cloudflare.com`
NS	`colin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`colin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`colin.ns.cloudflare.com`
		A	108.162.195.75^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	162.159.44.75^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	172.64.35.75^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
MX	`smtp.coursesite.com` ⭐
		A	67.227.250.190^{🇺🇸 LiquidWeb67.227.128.0/17 Liquidweb LLC}
			PTR	`server.c9m.com`
TXT	`v=spf1 include:smtp.couresite.com include:spf.ahasend.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.89.121, 172.67.141.223
		IPv6 hints	2606:4700:3032::ac43:8ddf, 2606:4700:3037::6815:5979
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com
SOA	`clarissa.ns.cloudflare.com`dns@cloudflare.com serial=2400242675

`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=1778395406

Same first word

coursesite.com

coursesite.biz

Similar names

DNS History

16 records (7 active, 9 former)

●NSclarissa.ns.cloudflare.com2026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

●NScolin.ns.cloudflare.com2026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

○NSns05.domaincontrol.com2015-06-17 → 2019-12-23 · 3 obs

● 2015-06-17 12:46:30
● 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

○NSns06.domaincontrol.com2015-06-17 → 2019-12-23 · 3 obs

● 2015-06-17 12:46:30
● 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

○NSns1.dyna-ns.net2026-05-10 → 2026-05-10 · 1 obs

○ 2026-05-10 07:04:00

○NSns2.dyna-ns.net2026-05-10 → 2026-05-10 · 1 obs

○ 2026-05-10 07:04:00

○MXmailstore1.secureserver.net2015-06-17 → 2019-12-23 · 3 obs

● 2015-06-17 12:46:30
● 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

●MXsmtp.coursesite.com2026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

○MXsmtp.secureserver.net2015-06-17 → 2019-12-23 · 3 obs

● 2015-06-17 12:46:30
● 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

●A104.21.89.1212026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

○A132.148.19.92019-12-23 → 2019-12-23 · 3 obs

○ 2017-02-02 07:15:56
● 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

●A172.67.141.2232026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

●A2606:4700:3032::ac43:8ddf2026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

●A2606:4700:3037::6815:59792026-05-10 → 2026-05-10 · 2 obs

○ 2019-12-23 23:09:38
● 2026-05-10 07:04:00

○A64.131.82.1482015-06-17 → 2017-02-02 · 4 obs

● 2015-06-17 12:46:30
● 2017-02-02 07:15:56
○ 2019-12-23 23:09:38
○ 2026-05-10 07:04:00

○A67.227.250.1902026-05-10 → 2026-05-10 · 1 obs

○ 2026-05-10 07:04:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net...	-
coursesite.com	clarissa.ns.cloudflare.com, colin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.75

NS records: clarissa.ns.cloudflare.com, colin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursesite.com (unsigned zone)

⏱️ Timing

Total: 314ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.89.121, 172.67.141.223`
AAAA	2	`2606:4700:3037::6815:5979, 2606:4700:3032::ac43:8ddf`
NS	2	`clarissa.ns.cloudflare.com, colin.ns.cloudflare.com`
MX	1	`smtp.coursesite.com (pri: 0)`
TXT	1	`v=spf1 include:smtp.couresite.com includ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clarissa.ns.cloudflare.com dns.cloudflar`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

coursesite.com maps to four IP numbers: 2606:4700:3032::ac43:8ddf, 2606:4700:3037::6815:5979, 104.21.89.121 and 172.67.141.223.

other host names include smgwomenshealth.sg, zonep2p.pl, ftp.seafiji.net, darii.ru and reducedshakespeare.com; they share IP numbers with coursesite.com.

Name Servers

Two name servers clarissa.ns.cloudflare.com and colin.ns.cloudflare.com handle the delegation for coursesite.com.

coursesite.com shares the same name server setup as other domains, for instance scgmbhd.com, strobic.com, diplomas.org, cora.com.br and courses.com.

coursesite.com at least partially shares name servers with other domains, for instance vip66.channel, ecm.mn, insightquill.com, fenalu.com and raptorweb.net.

These name servers are commonly used with the following: noor.ns.cloudflare.com, laylah.ns.cloudflare.com, jay.ns.cloudflare.com and jarred.ns.cloudflare.com.

Six IP addresses per host:

clarissa.ns.cloudflare.com points to 2606:4700:50::a29f:267b, 2803:f800:50::6ca2:c27b, 2a06:98c1:50::ac40:227b, 108.162.194.123, 162.159.38.123 and 172.64.34.123; colin.ns.cloudflare.com points to 2606:4700:58::a29f:2c4b, 2803:f800:50::6ca2:c34b, 2a06:98c1:50::ac40:234b, 108.162.195.75, 162.159.44.75 and 172.64.35.75

Mail Servers

coursesite.com is handled by a single mail server, smtp.coursesite.com.

The host name smtp.coursesite.com points to IP 67.227.250.190.

coursesite.com - robtex.com

coursesite.com

com

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

`coursesite.com`

`com`