course-modules.com - dns.ninja

`course-modules.com`

DNSSEC	⚠️ Not signed
A	199.34.228.47^{🇺🇸 WEEBLY199.34.228.0/24}
		PTR	`pages-custom-7.weebly.com`
NS	`dns070.a.register.com` ⭐ ⚠️ Not in parent delegation
		A	216.21.231.70^{🇺🇸 Jacksonville216.21.231.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns070.a.register.com`
NS	`dns029.c.register.com` ⚠️ Not in parent delegation
		A	216.21.235.29^{🇺🇸 Jacksonville216.21.234.0/23 NF ATL SUBNETS}
			PTR	`dns029.c.register.com`
NS	`dns083.d.register.com` ⚠️ Not in parent delegation
		A	216.21.236.83^{🇺🇸 Jacksonville216.21.236.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns083.d.register.com`
NS	`dns090.b.register.com` ⚠️ Not in parent delegation
		A	216.21.232.90^{🇺🇸 Jacksonville216.21.232.0/24 5335 Gate Parkway Jacksonville FL 32256 United States}
			PTR	`dns090.b.register.com`
NS	`dns1.register.com` ⚠️ Not in zone NS records
		A	162.159.27.248^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`dns2.register.com` ⚠️ Not in zone NS records
		A	162.159.26.197^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
SOA	`dns070.a.register.com`root@register.com 2020-12-11 #3

`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=1781653415

⚠️ On DNS blocklist: tif

Same first word

course-modules.com

DNS History

12 records (12 active, 0 former)

●NSdns029.c.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●NSdns070.a.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●NSdns083.d.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●NSdns090.b.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●NSdns1.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●NSdns2.register.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●MXalt1.aspmx.l.google.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●MXalt2.aspmx.l.google.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●MXalt3.aspmx.l.google.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●MXalt4.aspmx.l.google.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●MXaspmx.l.google.com2026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

●A199.34.228.472026-06-01 → 2026-06-16 · 2 obs

● 2026-06-01 07:10:50
● 2026-06-16 23:55:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
course-modules.com	dns1.register.com, dns2.register.com	2 records

✅ Authoritative Response

Server:162.159.27.248

NS records: dns1.register.com, dns2.register.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for course-modules.com (unsigned zone)

⏱️ Timing

Total: 191ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`199.34.228.47`
NS	4	`dns029.c.register.com, dns083.d.register.com...`
MX	5	`alt2.aspmx.l.google.com (pri: 5), alt4.aspmx.l.google.com (pri: 10)...`
SOA	1	`dns070.a.register.com root.register.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.register.com, dns2.register.com)

Analysis

IP Addresses

course-modules.com has exactly one IP address — 199.34.228.47.

slnlaw.com, missingbutnotforgotten.com, milpitasconcrete.com plus two other host names have IP numbers in common with course-modules.com.

Name Servers

DNS for course-modules.com is handled by 6 name servers: dns1.register.com, dns2.register.com, dns070.a.register.com and 3 others.

course-modules.com partially shares its NS delegation with several other domains, including wholesoulliving.com, all3dfree.net, plantbacteriology.com and two others.

In DNS configurations, these name servers often share authority with dns083.d.register.com, dns082.d.register.com, dns029.c.register.com and 7 other name servers.

Host names resolving to a single IP address:

dns1.register.com directs to 162.159.27.248.

dns2.register.com directs to 162.159.26.197.

dns070.a.register.com directs to 216.21.231.70.

dns090.b.register.com directs to 216.21.232.90.

dns029.c.register.com directs to 216.21.235.29.

dns083.d.register.com directs to 216.21.236.83.