strcourse.com - dns.ninja

`strcourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:122e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b462^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.46^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.98^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`skip.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3be9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`skip.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`skip.ns.cloudflare.com`
		A	108.162.193.233^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	172.64.33.233^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	173.245.59.233^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
NS	`violet.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`violet.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`violet.ns.cloudflare.com`
		A	108.162.192.237^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	172.64.32.237^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.237^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.46, 172.67.180.98
		IPv6 hints	2606:4700:3030::6815:122e, 2606:4700:3037::ac43:b462
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=47, name=cloudflare-ech.com
SOA	`skip.ns.cloudflare.com`dns@cloudflare.com serial=2408720406

`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=1784204497

Same first word

strcourse.com

Similar names

trusscore.com

sursector.ch

trusscore.net

ruscorset.ru

trusscore.ca

rusescort.com

truecross.com

truscores.com

sursector.com

trusscore.info

rusescort.net

rtcourses.com

trusscore.org

truecross.org

DNS History

15 records (6 active, 9 former)

○NSns73.domaincontrol.com2019-04-23 → 2019-04-23 · 3 obs

● 2019-04-23 00:25:06
○ 2026-02-15 11:29:30
○ 2026-07-16 12:40:22

○NSns74.domaincontrol.com2019-04-23 → 2019-04-23 · 3 obs

● 2019-04-23 00:25:06
○ 2026-02-15 11:29:30
○ 2026-07-16 12:40:22

●NSskip.ns.cloudflare.com2026-02-15 → 2026-07-16 · 3 obs

○ 2019-04-23 00:25:06
● 2026-02-15 11:29:30
● 2026-07-16 12:40:22

●NSviolet.ns.cloudflare.com2026-02-15 → 2026-07-16 · 3 obs

○ 2019-04-23 00:25:06
● 2026-02-15 11:29:30
● 2026-07-16 12:40:22

●A104.21.18.462026-02-15 → 2026-07-16 · 16 obs

○ 2019-04-23 00:25:06
● 2026-02-15 11:29:30
● 2026-02-22 01:10:20
○ 2026-02-23 10:08:16
● 2026-03-16 04:42:36
○ 2026-03-17 00:49:16
● 2026-03-20 10:46:00
● 2026-03-23 02:24:10
○ 2026-03-27 08:44:14
● 2026-03-31 13:13:04
● 2026-05-18 06:27:46
○ 2026-06-14 23:22:46
● 2026-07-08 03:31:46
○ 2026-07-15 09:33:36
● 2026-07-16 12:40:20
● 2026-07-16 12:40:22

●A172.67.180.982026-02-15 → 2026-07-16 · 16 obs

○A188.114.96.02026-02-23 → 2026-07-15 · 14 obs

○ 2026-02-22 01:10:20
● 2026-02-23 10:08:16
○ 2026-03-16 04:42:36
● 2026-03-17 00:49:16
○ 2026-03-20 10:46:00
○ 2026-03-23 02:24:10
● 2026-03-27 08:44:14
○ 2026-03-31 13:13:04
○ 2026-05-18 06:27:46
● 2026-06-14 23:22:46
○ 2026-07-08 03:31:46
● 2026-07-15 09:33:36
○ 2026-07-16 12:40:20
○ 2026-07-16 12:40:22

○A188.114.97.02026-02-23 → 2026-07-15 · 14 obs

●A2606:4700:3030::6815:122e2026-07-08 → 2026-07-16 · 5 obs

○ 2026-06-14 23:22:46
● 2026-07-08 03:31:46
○ 2026-07-15 09:33:36
● 2026-07-16 12:40:20
● 2026-07-16 12:40:22

○A2606:4700:3034::ac43:b4622026-02-15 → 2026-05-18 · 13 obs

○A2606:4700:3036::6815:122e2026-02-15 → 2026-05-18 · 13 obs

●A2606:4700:3037::ac43:b4622026-07-08 → 2026-07-16 · 5 obs

○ 2026-06-14 23:22:46
● 2026-07-08 03:31:46
○ 2026-07-15 09:33:36
● 2026-07-16 12:40:20
● 2026-07-16 12:40:22

○A2a06:98c1:3120::2026-02-23 → 2026-07-15 · 14 obs

○A2a06:98c1:3121::2026-02-23 → 2026-07-15 · 14 obs

○A50.63.202.532019-04-23 → 2019-04-23 · 3 obs

● 2019-04-23 00:25:06
○ 2026-02-15 11:29:30
○ 2026-07-16 12:40:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
strcourse.com	violet.ns.cloudflare.com, skip.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.233

NS records: violet.ns.cloudflare.com, skip.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for strcourse.com (unsigned zone)

⏱️ Timing

Total: 156ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.18.46, 172.67.180.98`
AAAA	2	`2606:4700:3037::ac43:b462, 2606:4700:3030::6815:122e`
NS	2	`skip.ns.cloudflare.com, violet.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`skip.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

strcourse.com points to the four IP addresses 104.21.18.46, 172.67.180.98, 2606:4700:3030::6815:122e and 2606:4700:3037::ac43:b462.

briarwoodclubofankeny.com, paradum.in, aviarc.net plus two other host names have IP numbers in common with strcourse.com.

Name Servers

DNS delegation for strcourse.com points to two name servers: skip.ns.cloudflare.com and violet.ns.cloudflare.com.

The name server configuration of strcourse.com is shared with other domains, for instance infradisk.com, conservasisladelcarmen.com, sierolam.com and two others.

At least some of strcourse.com's name servers are shared with other domains, for example graph.uk, vaduvesingure.com, avntgrd.com and two more.

It is common for these name servers to be used in conjunction with the name servers sharon.ns.cloudflare.com, reese.ns.cloudflare.com and ace.ns.cloudflare.com.

Hosts with 6 IP addresses each:

skip.ns.cloudflare.com has IP addresses 108.162.193.233, 172.64.33.233 and 173.245.59.233, plus 3 other.

violet.ns.cloudflare.com has IP addresses 108.162.192.237, 172.64.32.237 and 173.245.58.237, plus 3 other.