`ctu-online.com`

DNSSEC	⚠️ Not signed
NS	`a1.uberns.com` ⚠️ Not in zone NS records
		A	2602:ffe2:53::1^{🇺🇸 TUT-AS2602:ffe2:53::/48 Peer1 Route Object}
			PTR	`a1.uberns.com`
		A	216.59.59.1^{🇺🇸 TUT-AS216.59.59.0/24 Total Uptime Technologies LLC}
			PTR	`a1.uberns.com`
NS	`b1.uberns.com` ⚠️ Not in zone NS records
		A	216.59.60.1^{TUT-AS216.59.60.0/24 Total Uptime Technologies LLC}
			PTR	`b1.uberns.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=1777137991

Same first word

ctu-online.com

ctu-online.de

Similar names

cut-online.de

cut-online.com

tuc-online.de

utc-online.com

uct-online.com

DNS History

3 records (2 active, 1 former)

●NSa1.uberns.com2015-08-19 → 2026-04-25 · 2 obs

● 2015-08-19 00:44:40
● 2026-04-25 17:53:16

●NSb1.uberns.com2015-08-19 → 2026-04-25 · 2 obs

● 2015-08-19 00:44:40
● 2026-04-25 17:53:16

○A64.27.163.1662015-08-19 → 2016-06-24 · 4 obs

● 2015-08-19 00:44:40
● 2016-06-24 16:18:26
○ 2026-03-09 03:37:48
○ 2026-04-25 17:53:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ctu-online.com	a1.uberns.com, b1.uberns.com	3 records

✅ Authoritative Response

Server:216.59.59.1

NS records: a1.uberns.com, b1.uberns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctu-online.com (unsigned zone)

⏱️ Timing

Total: 205ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (a1.uberns.com, a1.uberns.com, b1.uberns.com)

Analysis

Name Servers

ctu-online.com is delegated to two name servers: a1.uberns.com and b1.uberns.com.

ctu-online.com uses the same name server setup as other domains, including unitedsupplyco.com, caculinary.edu, omessage.com, am-globalfsig.com and rtpnav.com.

At least part of the name servers for ctu-online.com are shared with other domains, for instance oh.bet365.com, 365788.com, hilite.com, ogora.com and atlasbridge.com.

these name servers are commonly used with the name servers b1.uberns.net, a1.uberns.net, b1.uberns.org, a1.uberns.org, a3.uberns.com, b3.uberns.com, c1.uberns.com, edns142.ultradns.biz, edns142.ultradns.com and edns142.ultradns.net.

Host names with two IP numbers: a1.uberns.com points to 2602:ffe2:53::1 and 216.59.59.1.

Host names with one IP number: b1.uberns.com points to 216.59.60.1.

ctu-online.com - robtex.com

ctu-online.com

com