`ultimoslibros.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

Previously MX for

ultimoslibros.com

www.ultimoslibros.com

Subdomains

www.ultimoslibros.com

Same first word

ultimoslibros.com

DNS History

8 records (3 active, 5 former)

●NSns.buydomains.com2026-02-24 → 2026-03-24 · 3 obs

○ 2016-06-20 05:25:50
● 2026-02-24 09:53:16
● 2026-03-24 03:26:18

○NSns3217.hostgator.com2015-06-17 → 2016-02-02 · 4 obs

● 2015-06-17 18:56:36
● 2016-02-02 08:57:02
○ 2016-06-20 05:25:50
○ 2026-03-24 03:26:18

○NSns3218.hostgator.com2015-06-17 → 2016-02-02 · 4 obs

● 2015-06-17 18:56:36
● 2016-02-02 08:57:02
○ 2016-06-20 05:25:50
○ 2026-03-24 03:26:18

○NSns8007.hostgator.com2015-06-17 → 2016-02-02 · 4 obs

● 2015-06-17 18:56:36
● 2016-02-02 08:57:02
○ 2016-06-20 05:25:50
○ 2026-03-24 03:26:18

●NSthis-domain-for-sale.com2026-02-24 → 2026-03-24 · 3 obs

○ 2016-06-20 05:25:50
● 2026-02-24 09:53:16
● 2026-03-24 03:26:18

○MXultimoslibros.com2015-06-17 → 2016-02-02 · 4 obs

● 2015-06-17 18:56:36
● 2016-02-02 08:57:02
○ 2016-06-20 05:25:50
○ 2026-03-24 03:26:18

○A192.185.16.272015-06-17 → 2016-02-02 · 4 obs

● 2015-06-17 18:56:36
● 2016-02-02 08:57:02
○ 2016-06-20 05:25:50
○ 2026-03-24 03:26:18

●A207.148.248.1432026-02-24 → 2026-03-24 · 3 obs

○ 2016-06-20 05:25:50
● 2026-02-24 09:53:16
● 2026-03-24 03:26:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ultimoslibros.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 ultimoslibros.com (unsigned zone)

⏱️ Timing

Total: 1564ms | 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

ultimoslibros.com is the parent of www.ultimoslibros.com.

IP Addresses

ultimoslibros.com resolves to one IP number: 207.148.248.143.

other host names including abledynamic.com, caterstore.com, volunteeradventure.com, www.gourmandco.com and agabuilding.com share IP numbers with ultimoslibros.com.

Name Servers

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

ultimoslibros.com shares the same name server setup as other domains, for instance lisweb.com, camparchitecture.com, clickfunerals.com, rodl.org and servur.com.

ultimoslibros.com shares at least some name servers with other domains, for example amazingleader.com, crystallized.net and xaom.com.

these name servers are commonly used alongside 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.

ultimoslibros.com - robtex.com