`practicalbiology.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=1777193326

Same first word

practicalbiology.com

DNS History

8 records (3 active, 5 former)

●NSns.buydomains.com2026-04-07 → 2026-04-26 · 3 obs

○ 2017-02-16 20:14:52
● 2026-04-07 17:37:36
● 2026-04-26 08:52:14

○NSns47.domaincontrol.com2015-06-16 → 2017-02-16 · 4 obs

● 2015-06-16 13:39:28
● 2017-02-16 20:14:52
○ 2026-04-07 17:37:36
○ 2026-04-26 08:52:14

○NSns48.domaincontrol.com2015-06-16 → 2017-02-16 · 4 obs

● 2015-06-16 13:39:28
● 2017-02-16 20:14:52
○ 2026-04-07 17:37:36
○ 2026-04-26 08:52:14

●NSthis-domain-for-sale.com2026-04-07 → 2026-04-26 · 3 obs

○ 2017-02-16 20:14:52
● 2026-04-07 17:37:36
● 2026-04-26 08:52:14

○MXmailstore1.secureserver.net2015-06-16 → 2017-02-16 · 4 obs

● 2015-06-16 13:39:28
● 2017-02-16 20:14:52
○ 2026-04-07 17:37:36
○ 2026-04-26 08:52:14

○MXsmtp.secureserver.net2015-06-16 → 2017-02-16 · 4 obs

● 2015-06-16 13:39:28
● 2017-02-16 20:14:52
○ 2026-04-07 17:37:36
○ 2026-04-26 08:52:14

○A184.168.221.602015-06-16 → 2017-02-16 · 4 obs

● 2015-06-16 13:39:28
● 2017-02-16 20:14:52
○ 2026-04-07 17:37:36
○ 2026-04-26 08:52:14

●A207.148.248.1432026-04-07 → 2026-04-26 · 3 obs

○ 2017-02-16 20:14:52
● 2026-04-07 17:37:36
● 2026-04-26 08:52:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
practicalbiology.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 practicalbiology.com (unsigned zone)

⏱️ Timing

Total: 95ms | 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

practicalbiology.com resolves to one IP number: 207.148.248.143.

other host names including mail.economycost.com, www.harvestlogos.com, mail.vuller.com, designcounseling.com and ahbliss.com share IP numbers with practicalbiology.com.

Name Servers

practicalbiology.com is delegated to two name servers this-domain-for-sale.com and ns.buydomains.com.

practicalbiology.com shares the same name server setup as other domains, for instance businesspolish.com, webvideo.org, hotpotparty.com, dealstore.net and visiblecore.com.

Host names with a single IP:

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

ns.buydomains.com points to 52.20.26.87.

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

practicalbiology.com - robtex.com