`ctfsydney.com`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
		PTR	`ip-198-49-23-144.defastlink.net`
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`eforward6.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward7.registrar-servers.com`⁽⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward1.registrar-servers.com`⁽¹⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com`⁽¹⁰⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com`⁽¹⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1573439838

`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

Same first word

ctfsydney.com

DNS History

17 records (13 active, 4 former)

●NSdns1.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●NSdns2.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

○NSns1-001.name-server.com.au2015-07-05 → 2017-02-06 · 3 obs

● 2015-07-05 01:01:26
● 2017-02-06 09:31:36
○ 2026-03-22 21:56:30

○NSns2-001.name-server.com.au2015-07-05 → 2017-02-06 · 3 obs

● 2015-07-05 01:01:26
● 2017-02-06 09:31:36
○ 2026-03-22 21:56:30

○MXctfsydney-com.mail.protection.outlook.com2015-07-05 → 2017-02-06 · 3 obs

● 2015-07-05 01:01:26
● 2017-02-06 09:31:36
○ 2026-03-22 21:56:30

●MXeforward1.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward2.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward3.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward4.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward5.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward6.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●MXeforward7.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

○A113.20.9.1852015-07-05 → 2017-02-06 · 3 obs

● 2015-07-05 01:01:26
● 2017-02-06 09:31:36
○ 2026-03-22 21:56:30

●A198.185.159.1442026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●A198.185.159.1452026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●A198.49.23.1442026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

●A198.49.23.1452026-03-22 → 2026-03-22 · 2 obs

○ 2017-02-06 09:31:36
● 2026-03-22 21:56:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ctfsydney.com	dns1.registrar-servers.com, dns2.registrar-servers.com	4 records

✅ Authoritative Response

Server: 156.154.133.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctfsydney.com (unsigned zone)

⏱️ Timing

Total: 322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.49.23.145, 198.185.159.145...`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	7	`eforward6.registrar-servers.com (pri: 1), eforward7.registrar-servers.com (pri: 5)...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by ctfsydney.com: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

other host names including resetk.com, pi-craft.com, theekonomist.com, tessvisual.com and bornbendy.com share IP numbers with ctfsydney.com.

Name Servers

ctfsydney.com is delegated to two name servers dns1.registrar-servers.com and dns2.registrar-servers.com.

ctfsydney.com shares the same name server setup as other domains, for instance 4thwallai.com, vinparis.org, americanautomovers.com, bucknell.university and blacklab.capital.

ctfsydney.com shares at least some name servers with other domains, for example daily(0x736c7574).net, talkthera.com and game-mafia.org.

These name servers are commonly used with dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

Host names with two IP numbers:

The host name dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200; the host name dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.

Mail Servers

ctfsydney.com is handled by seven mail servers: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com.

ctfsydney.com shares some mail servers with other domains, at least partially, for instance motocarenado.com, prtl.ink, paper.place, exploit.directory and halpernhome.com.