`teachingyourself.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`
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=1771291435

Subdomains

mxav2.teachingyourself.com

DNS History

10 records (3 active, 7 former)

●NSns.buydomains.com2015-05-20 → 2026-03-23 · 3 obs

○ 2007-11-02 06:36:58
● 2015-05-20 22:13:46
● 2026-03-23 00:40:38

○NSns1.amenworld.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 06:36:58
○ 2015-05-20 22:13:46
○ 2026-03-23 00:40:38

○NSns2.amenworld.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 06:36:58
○ 2015-05-20 22:13:46
○ 2026-03-23 00:40:38

●NSthis-domain-for-sale.com2026-03-23 → 2026-03-23 · 3 obs

○ 2015-05-20 22:13:46
● 2026-03-23 00:40:36
● 2026-03-23 00:40:38

○MXmxav1.teachingyourself.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 06:36:58
○ 2015-05-20 22:13:46
○ 2026-03-23 00:40:38

○MXmxav2.teachingyourself.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 06:36:58
○ 2015-05-20 22:13:46
○ 2026-03-23 00:40:38

○A141.8.225.1242015-12-13 → 2016-07-05 · 5 obs

○ 2015-10-13 04:39:20
● 2015-12-13 02:31:18
● 2016-07-05 19:47:18
○ 2017-03-21 07:38:24
○ 2026-03-23 00:40:38

●A207.148.248.1432017-03-21 → 2026-03-23 · 3 obs

○ 2016-07-05 19:47:18
● 2017-03-21 07:38:24
● 2026-03-23 00:40:38

○A50.63.202.1042015-05-20 → 2015-10-13 · 5 obs

○ 2007-11-02 06:36:58
● 2015-05-20 22:13:46
● 2015-10-13 04:39:20
○ 2015-12-13 02:31:18
○ 2026-03-23 00:40:38

○A62.193.206.1442007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 06:36:58
○ 2015-05-20 22:13:46
○ 2026-03-23 00:40:38

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:52.4.207.204

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachingyourself.com (unsigned zone)

⏱️ Timing

Total: 64ms | 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

Hierarchy

The parent of mxav2.teachingyourself.com is teachingyourself.com.

IP Addresses

teachingyourself.com points to a single IP: 207.148.248.143.

Other host names, for instance download.integratedtrading.com, greatbling.com, mx7.pnnl.org, sheerrain.com and mail.thecco.com share IP numbers with teachingyourself.com.

Name Servers

Two name servers this-domain-for-sale.com and ns.buydomains.com handle delegation for teachingyourself.com.

teachingyourself.com uses the same name server setup as other domains, for example nyril.com, stripeexpert.com, festivalbrand.com, recurso.net and odourtreatment.com.

teachingyourself.com shares name servers with other domains at least in part, for instance activeaudience.com.

Host names with one IP number

Host name this-domain-for-sale.com points to 52.20.26.87

Host name ns.buydomains.com points to 52.20.26.87

Host names that point to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com

teachingyourself.com - robtex.com