coursefuture.com - dns.ninja

`coursefuture.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:1bbe^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8f76^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.27.190^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.143.118^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elisa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2636^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c236^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elisa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2236^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elisa.ns.cloudflare.com`
		A	108.162.194.54^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	162.159.38.54^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	172.64.34.54^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
NS	`elliott.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ce4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliott.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elliott.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elliott.ns.cloudflare.com`
		A	108.162.195.228^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliott.ns.cloudflare.com`
		A	162.159.44.228^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliott.ns.cloudflare.com`
		A	172.64.35.228^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliott.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.27.190, 172.67.143.118
		IPv6 hints	2606:4700:3032::6815:1bbe, 2606:4700:3036::ac43:8f76
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOA	`elisa.ns.cloudflare.com`dns@cloudflare.com serial=2406648501

`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=1783840937

Same first word

coursefuture.com

Similar names

futuresource.com

futuresource.org

futuresource.ca

futurecourse.net

futurecourse.com

DNS History

23 records (6 active, 17 former)

●NSelisa.ns.cloudflare.com2026-02-28 → 2026-07-12 · 3 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
● 2026-07-12 07:49:46

●NSelliott.ns.cloudflare.com2026-02-28 → 2026-07-12 · 3 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
● 2026-07-12 07:49:46

○NSns43.domaincontrol.com2019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○NSns44.domaincontrol.com2019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

●A104.21.27.1902026-02-28 → 2026-07-12 · 8 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
○ 2026-03-02 15:42:22
● 2026-03-12 05:29:38
● 2026-06-15 15:14:40
○ 2026-06-19 01:35:10
● 2026-07-08 20:02:02
● 2026-07-12 07:49:46

○A172.64.80.12026-02-28 → 2026-07-12 · 2 obs

○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

●A172.67.143.1182026-02-28 → 2026-07-12 · 8 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
○ 2026-03-02 15:42:22
● 2026-03-12 05:29:38
● 2026-06-15 15:14:40
○ 2026-06-19 01:35:10
● 2026-07-08 20:02:02
● 2026-07-12 07:49:46

○A184.168.221.592019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A184.168.221.612019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A188.114.96.02026-03-02 → 2026-06-19 · 7 obs

○ 2026-02-28 19:56:50
● 2026-03-02 15:42:22
○ 2026-03-12 05:29:38
○ 2026-06-15 15:14:40
● 2026-06-19 01:35:10
○ 2026-07-08 20:02:02
○ 2026-07-12 07:49:46

○A188.114.97.02026-03-02 → 2026-06-19 · 7 obs

○ 2026-02-28 19:56:50
● 2026-03-02 15:42:22
○ 2026-03-12 05:29:38
○ 2026-06-15 15:14:40
● 2026-06-19 01:35:10
○ 2026-07-08 20:02:02
○ 2026-07-12 07:49:46

●A2606:4700:3032::6815:1bbe2026-07-08 → 2026-07-12 · 3 obs

○ 2026-06-19 01:35:10
● 2026-07-08 20:02:02
● 2026-07-12 07:49:46

○A2606:4700:3036::6815:1bbe2026-02-28 → 2026-06-15 · 7 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
○ 2026-03-02 15:42:22
● 2026-03-12 05:29:38
● 2026-06-15 15:14:40
○ 2026-06-19 01:35:10
○ 2026-07-12 07:49:46

●A2606:4700:3036::ac43:8f762026-07-08 → 2026-07-12 · 3 obs

○ 2026-06-19 01:35:10
● 2026-07-08 20:02:02
● 2026-07-12 07:49:46

○A2606:4700:3037::ac43:8f762026-02-28 → 2026-06-15 · 7 obs

○ 2019-03-06 20:37:38
● 2026-02-28 19:56:50
○ 2026-03-02 15:42:22
● 2026-03-12 05:29:38
● 2026-06-15 15:14:40
○ 2026-06-19 01:35:10
○ 2026-07-12 07:49:46

○A2a06:98c1:3120::2026-03-02 → 2026-06-19 · 7 obs

○ 2026-02-28 19:56:50
● 2026-03-02 15:42:22
○ 2026-03-12 05:29:38
○ 2026-06-15 15:14:40
● 2026-06-19 01:35:10
○ 2026-07-08 20:02:02
○ 2026-07-12 07:49:46

○A2a06:98c1:3121::2026-03-02 → 2026-06-19 · 7 obs

○ 2026-02-28 19:56:50
● 2026-03-02 15:42:22
○ 2026-03-12 05:29:38
○ 2026-06-15 15:14:40
● 2026-06-19 01:35:10
○ 2026-07-08 20:02:02
○ 2026-07-12 07:49:46

○A50.63.202.332019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A50.63.202.352019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A50.63.202.442019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A50.63.202.452019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A50.63.202.532019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

○A50.63.202.612019-03-06 → 2019-03-06 · 3 obs

● 2019-03-06 20:37:38
○ 2026-02-28 19:56:50
○ 2026-07-12 07:49:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net...	-
coursefuture.com	elisa.ns.cloudflare.com, elliott.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.54

NS records: elisa.ns.cloudflare.com, elliott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursefuture.com (unsigned zone)

⏱️ Timing

Total: 282ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.143.118, 104.21.27.190`
AAAA	2	`2606:4700:3032::6815:1bbe, 2606:4700:3036::ac43:8f76`
NS	2	`elisa.ns.cloudflare.com, elliott.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elisa.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

coursefuture.com resolves to four IP addresses: 104.21.27.190, 172.67.143.118, 2606:4700:3032::6815:1bbe and 2606:4700:3036::ac43:8f76.

Among the host names that share IP numbers with coursefuture.com are corevippro.nl, kearneyflooring.com, www.yy99bb.com and two others.

Name Servers

Two name servers handle the delegation for coursefuture.com: elisa.ns.cloudflare.com and elliott.ns.cloudflare.com.

coursefuture.com has the same name server delegation as a number of other domains, such as gerd-pfeffer.de, douwifi.com, speedoffer.net and two more.

coursefuture.com has at least partial name server overlap with other domains, such as dunin.pl, wirelessemporium.com, x390.com and two others.

It is common to find these name servers paired with the name servers max.ns.cloudflare.com, clay.ns.cloudflare.com, emma.ns.cloudflare.com and harvey.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

elisa.ns.cloudflare.com resolves to 108.162.194.54, 162.159.38.54 and 172.64.34.54 among others, with 3 other IP addresses in total.

elliott.ns.cloudflare.com resolves to 108.162.195.228, 162.159.44.228 and 172.64.35.228 among others, with 3 other IP addresses in total.