runningcourses.com - dns.ninja

`runningcourses.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
NS	`ns.buydomains.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`
NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`

`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=1786111624

Same first word

runningcourses.com

DNS History

13 records (3 active, 10 former)

○NSdns1.name-services.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

○NSdns2.name-services.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

○NSdns3.name-services.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

○NSdns4.name-services.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

○NSdns5.name-services.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

●NSns.buydomains.com2017-03-16 → 2026-08-07 · 3 obs

○ 2016-07-15 15:04:24
● 2017-03-16 21:09:54
● 2026-08-07 14:27:26

○NSns1.afternic.com2015-12-05 → 2016-07-15 · 5 obs

○ 2015-08-18 09:42:22
● 2015-12-05 17:22:10
● 2016-07-15 15:04:24
○ 2017-03-16 21:09:54
○ 2026-08-07 14:27:26

●NSthis-domain-for-sale.com2026-04-03 → 2026-08-07 · 3 obs

○ 2017-03-16 21:09:54
● 2026-04-03 03:12:42
● 2026-08-07 14:27:26

○MXp.nsm.ctmail.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

○A141.8.225.1242017-03-16 → 2017-03-16 · 4 obs

○ 2016-07-15 15:04:24
● 2017-03-16 21:09:54
○ 2020-03-09 01:51:36
○ 2026-08-07 14:27:26

○A184.168.221.1042015-12-05 → 2016-07-15 · 5 obs

○ 2015-08-18 09:42:22
● 2015-12-05 17:22:10
● 2016-07-15 15:04:24
○ 2017-03-16 21:09:54
○ 2026-08-07 14:27:26

●A207.148.248.1432020-03-09 → 2026-08-07 · 3 obs

○ 2017-03-16 21:09:54
● 2020-03-09 01:51:36
● 2026-08-07 14:27:26

○A64.74.223.342015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 09:42:22
○ 2015-12-05 17:22:10
○ 2026-08-07 14:27:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
runningcourses.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.20.26.87

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for runningcourses.com (unsigned zone)

⏱️ Timing

Total: 3051ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

IP Addresses

runningcourses.com resolves to just one IP address, 207.148.248.143.

Two other host names, along with apfs.net, givecomfort.com and melonmate.com, also share IP numbers with runningcourses.com.

Name Servers

The NS records for runningcourses.com delegate to this-domain-for-sale.com and ns.buydomains.com.

runningcourses.com shares its NS records with other domains, for example retractableroofing.com, earlsworld.com, ketium.com and two others.

runningcourses.com and other domains like georgiacoaching.com share at least a portion of their name servers.

Each of this-domain-for-sale.com and ns.buydomains.com points to exactly one IP address: 52.20.26.87.

this-domain-for-sale.com and ns.buydomains.com each have 52.20.26.87 IP addresses.