`sheldon-brown.net`

DNSSEC	⚠️ Not signed
NS	`ns1.yourhostingaccount.com` ⭐
		A	65.254.254.102^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`ns1.yourhostingaccount.com`
NS	`ns1.mydomain.com` ⚠️ Not in zone NS records
		A	172.64.52.99^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.mydomain.com` ⚠️ Not in zone NS records
		A	172.64.53.76^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx.sheldon-brown.net` ⭐
		A	132.239.235.36^{🇺🇸 UCSD132.239.0.0/16 University of California, San Diego}
			PTR	`appliedsf.ucsd.edu`
			PTR	`artsst.ucsd.edu`
			PTR	`mdons.ucsd.edu`
			PTR	`sheldon-brown.ucsd.edu`
SOA	`ns1.yourhostingaccount.com`admin@yourhostingaccount.com 2012-08-09 #38

`net`

	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=1778878726

Subdomains

mx.sheldon-brown.net

www.sheldon-brown.net

Same first word

sheldon-brown.net

DNS History

9 records (4 active, 5 former)

●NSns1.mydomain.com2007-08-23 → 2026-05-15 · 2 obs

● 2007-08-23 08:49:50
● 2026-05-15 21:10:34

●NSns1.yourhostingaccount.com2015-05-30 → 2026-05-15 · 3 obs

○ 2007-08-23 08:49:50
● 2015-05-30 06:35:48
● 2026-05-15 21:10:34

●NSns2.mydomain.com2007-08-23 → 2026-05-15 · 2 obs

● 2007-08-23 08:49:50
● 2026-05-15 21:10:34

○NSns3.mydomain.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 08:49:50
○ 2015-05-30 06:35:48
○ 2026-05-15 21:10:34

○NSns4.mydomain.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 08:49:50
○ 2015-05-30 06:35:48
○ 2026-05-15 21:10:34

○MXm1.dnsix.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 08:49:50
○ 2015-05-30 06:35:48
○ 2026-05-15 21:10:34

●MXmx.sheldon-brown.net2015-05-30 → 2026-05-15 · 3 obs

○ 2007-08-23 08:49:50
● 2015-05-30 06:35:48
● 2026-05-15 21:10:34

○A132.239.235.362015-05-30 → 2026-03-16 · 5 obs

○ 2007-08-23 08:49:50
● 2015-05-30 06:35:48
● 2026-03-16 19:24:12
○ 2026-05-15 21:10:32
○ 2026-05-15 21:10:34

○A132.239.235.552007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 08:49:50
○ 2015-05-30 06:35:48
○ 2026-05-15 21:10:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sheldon-brown.net	ns1.mydomain.com, ns2.mydomain.com	-

✅ Authoritative Response

Server:172.64.53.76

NS records: ns1.mydomain.com, ns2.mydomain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sheldon-brown.net (unsigned zone)

⏱️ Timing

Total: 2060ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`132.239.235.36`
NS	2	`ns2.mydomain.com, ns1.mydomain.com`
MX	1	`mx.sheldon-brown.net (pri: 30)`
SOA	1	`ns1.yourhostingaccount.com admin.yourhos`

Analysis

Hierarchy

sheldon-brown.net is a parent of mx.sheldon-brown.net and www.sheldon-brown.net.

Name Servers

sheldon-brown.net is delegated to three name servers: ns1.mydomain.com, ns2.mydomain.com and ns1.yourhostingaccount.com.

sheldon-brown.net partially shares name servers with other domains; examples include eecon.com, rainwaterharvesting.ca, (0x7072657465656e)s.ca, nataa.org and interpute.com.

These name servers are commonly used alongside ns2.yourhostingaccount.com, ns3.mydomain.com, ns4.mydomain.com, ns1.dotster.com, ns2.dotster.com, ns1.domain.com, ns2.domain.com, ns1.verio.com, ns2.verio.com and ns1.hypermart.net.

Host names with one IP number:

Host ns1.mydomain.com points to 172.64.52.99.

Host ns2.mydomain.com points to 172.64.53.76.

Host ns1.yourhostingaccount.com points to 65.254.254.102.

Mail Servers

sheldon-brown.net is handled by a single mail server, mx.sheldon-brown.net.

mx.sheldon-brown.net points to a single IP: 132.239.235.36.

sheldon-brown.net - robtex.com