`masterbook.org`

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`

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1773551953

Same first word

masterbook.in

masterbook.ro

masterbook.com.mx

masterbook.hu

masterbook.org

masterbook.com.ar

masterbook.it

masterbook.ru

masterbook.de

masterbook.info

masterbook.com

masterbook.biz

Similar names

DNS History

4 records (3 active, 1 former)

●NSns.buydomains.com2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 00:22:34
● 2026-03-23 12:26:00

●NSthis-domain-for-sale.com2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 00:22:34
● 2026-03-23 12:26:00

●A207.148.248.1432015-12-08 → 2026-03-23 · 3 obs

○ 2015-08-12 11:51:46
● 2015-12-08 04:28:48
● 2026-03-23 12:26:00

○A66.151.181.492015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:51:46
○ 2015-12-08 04:28:48
○ 2026-03-23 12:26:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
masterbook.org	this-domain-for-sale.com, ns.buydomains.com	-

✅ Authoritative Response

Server:52.20.26.87

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterbook.org (unsigned zone)

⏱️ Timing

Total: 3847ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

Analysis

IP Addresses

masterbook.org points to IP number 207.148.248.143.

For instance, other host names ns2.valuebux.com, factoryrush.com, lunchtime.net, pacificdigest.com and indonesianexports.com share IP numbers with masterbook.org.

Name Servers

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

masterbook.org uses the same name server setup as other domains such as musiciansassist.com, armp.net, simplelean.com, bipolarsolutions.com and onlinesculpture.com.

masterbook.org shares name servers with other domains at least partially, for example datingsavvy.com, callandclick.com, myagape.com, paistropical.com and destinywalk.com.

These name servers are commonly used with ns2.buydomains.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

masterbook.org - robtex.com

masterbook.org

org