onecoursesource.com - dns.ninja

`onecoursesource.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:573^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:855e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.115^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.133.94^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sam.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b8d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sam.ns.cloudflare.com`
		A	108.162.193.141^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	172.64.33.141^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	173.245.59.141^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
NS	`sandy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3adb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sandy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sandy.ns.cloudflare.com`
		A	108.162.192.219^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	172.64.32.219^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	173.245.58.219^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
MX	`mail.onecoursesource.com` ⭐
		A	38.89.139.86^{🇺🇸 AS1388638.89.139.0/24}
			PTR	`www.onecoursesource.com`
TXT	`v=spf1 ip4:38.89.139.86 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.115, 172.67.133.94
		IPv6 hints	2606:4700:3033::6815:573, 2606:4700:3037::ac43:855e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com
SOA	`sam.ns.cloudflare.com`dns@cloudflare.com serial=2408972419

`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=1785098042

WOT: SAFE (63/100)

Subdomains

www.onecoursesource.com

mail.onecoursesource.com

Same first word

onecoursesource.com

DNS History

16 records (7 active, 9 former)

●NSsam.ns.cloudflare.com2026-02-25 → 2026-07-26 · 3 obs

○ 2020-02-19 22:50:36
● 2026-02-25 19:09:46
● 2026-07-26 20:59:38

●NSsandy.ns.cloudflare.com2026-02-25 → 2026-07-26 · 3 obs

○ 2020-02-19 22:50:36
● 2026-02-25 19:09:46
● 2026-07-26 20:59:38

○NSttr.technicaltrainingresources.com2015-07-09 → 2020-02-19 · 5 obs

○ 2008-03-19 02:11:02
● 2015-07-09 04:07:42
● 2020-02-19 22:50:36
○ 2026-02-25 19:09:46
○ 2026-07-26 20:59:38

●MXmail.onecoursesource.com2008-03-19 → 2026-07-26 · 2 obs

● 2008-03-19 02:11:02
● 2026-07-26 20:59:38

●A104.21.5.1152026-02-25 → 2026-07-26 · 10 obs

○ 2020-02-19 22:50:36
● 2026-02-25 19:09:46
● 2026-02-26 02:05:16
○ 2026-03-08 18:22:46
○ 2026-03-31 08:37:44
● 2026-04-12 06:34:12
● 2026-05-30 23:15:24
○ 2026-07-02 05:23:34
● 2026-07-08 16:38:00
● 2026-07-26 20:59:38

●A172.67.133.942026-02-25 → 2026-07-26 · 10 obs

○A188.114.96.02026-03-08 → 2026-07-02 · 8 obs

○ 2026-02-26 02:05:16
● 2026-03-08 18:22:46
● 2026-03-31 08:37:44
○ 2026-04-12 06:34:12
○ 2026-05-30 23:15:24
● 2026-07-02 05:23:34
○ 2026-07-08 16:38:00
○ 2026-07-26 20:59:38

○A188.114.97.02026-03-08 → 2026-07-02 · 8 obs

○ 2026-02-26 02:05:16
● 2026-03-08 18:22:46
● 2026-03-31 08:37:44
○ 2026-04-12 06:34:12
○ 2026-05-30 23:15:24
● 2026-07-02 05:23:34
○ 2026-07-08 16:38:00
○ 2026-07-26 20:59:38

○A2606:4700:3031::6815:5732026-02-25 → 2026-05-30 · 9 obs

●A2606:4700:3033::6815:5732026-07-08 → 2026-07-26 · 3 obs

○ 2026-07-02 05:23:34
● 2026-07-08 16:38:00
● 2026-07-26 20:59:38

○A2606:4700:3034::ac43:855e2026-02-25 → 2026-05-30 · 9 obs

●A2606:4700:3037::ac43:855e2026-07-08 → 2026-07-26 · 3 obs

○ 2026-07-02 05:23:34
● 2026-07-08 16:38:00
● 2026-07-26 20:59:38

○A2a06:98c1:3120::2026-03-08 → 2026-07-02 · 8 obs

○ 2026-02-26 02:05:16
● 2026-03-08 18:22:46
● 2026-03-31 08:37:44
○ 2026-04-12 06:34:12
○ 2026-05-30 23:15:24
● 2026-07-02 05:23:34
○ 2026-07-08 16:38:00
○ 2026-07-26 20:59:38

○A2a06:98c1:3121::2026-03-08 → 2026-07-02 · 8 obs

○ 2026-02-26 02:05:16
● 2026-03-08 18:22:46
● 2026-03-31 08:37:44
○ 2026-04-12 06:34:12
○ 2026-05-30 23:15:24
● 2026-07-02 05:23:34
○ 2026-07-08 16:38:00
○ 2026-07-26 20:59:38

○A38.89.136.1092015-07-09 → 2020-02-19 · 5 obs

○ 2008-03-19 02:11:02
● 2015-07-09 04:07:42
● 2020-02-19 22:50:36
○ 2026-02-25 19:09:46
○ 2026-07-26 20:59:38

○A66.113.130.1792008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 02:11:02
○ 2015-07-09 04:07:42
○ 2026-07-26 20:59:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
onecoursesource.com	sam.ns.cloudflare.com, sandy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.219

NS records: sam.ns.cloudflare.com, sandy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for onecoursesource.com (unsigned zone)

⏱️ Timing

Total: 83ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.133.94, 104.21.5.115`
AAAA	2	`2606:4700:3037::ac43:855e, 2606:4700:3033::6815:573`
NS	2	`sam.ns.cloudflare.com, sandy.ns.cloudflare.com`
MX	1	`mail.onecoursesource.com (pri: 0)`
TXT	1	`v=spf1 ip4:38.89.139.86 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sam.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

onecoursesource.com is the parent domain of www.onecoursesource.com and mail.onecoursesource.com.

IP Addresses

onecoursesource.com resolves to four IP addresses: 104.21.5.115, 172.67.133.94, 2606:4700:3033::6815:573 and 2606:4700:3037::ac43:855e.

Additional host names — konfeti.gen.tr, www.oodle.software, g5brasil.com and two others — share IP numbers with onecoursesource.com.

Name Servers

onecoursesource.com uses two name servers for its delegation: sam.ns.cloudflare.com and sandy.ns.cloudflare.com.

onecoursesource.com shares its name server setup with other domains, including epostprocessor.com, loadstatsfast.com, vjvnow.com and two others.

onecoursesource.com has at least partial name server overlap with other domains, such as chemcentrum.nl, paroladellagrazia.com, metropolitanams.com.br and two others.

It is common to see these name servers used together with name servers jerry.ns.cloudflare.com and pam.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname sam.ns.cloudflare.com directs to 108.162.193.141, 172.64.33.141 and 173.245.59.141 along with 3 other IP addresses.

Hostname sandy.ns.cloudflare.com directs to 108.162.192.219, 172.64.32.219 and 173.245.58.219 along with 3 other IP addresses.

Mail Servers

onecoursesource.com has one mail server: mail.onecoursesource.com.

mail.onecoursesource.com directs to just one IP number, 38.89.139.86.