ctrcenter.org - dns.ninja

`ctrcenter.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b4a9^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:23e7^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.231^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.169^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leo.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cf1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3f1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23f1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leo.ns.cloudflare.com`
		A	108.162.195.241^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	162.159.44.241^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	172.64.35.241^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
NS	`ruth.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ruth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ruth.ns.cloudflare.com`
		A	108.162.192.143^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	172.64.32.143^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	173.245.58.143^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
MX	`mx15.ukraine.com.ua`⁽¹⁵⁾
		A	2a0c:a80:0:b2c8::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-19-x178n200.default-host.net`
		A	2a0c:a80:0:b2d0::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-20-x178n208.default-host.net`
		A	2a0c:a80:0:b2d4::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-21-x178n212.default-host.net`
		A	2a0c:a80:0:b2d8::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-23-x178n216.default-host.net`
		A	185.234.178.200^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-19-x178n200.default-host.net`
		A	185.234.178.208^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-20-x178n208.default-host.net`
		A	185.234.178.212^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-21-x178n212.default-host.net`
		A	185.234.178.216^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-23-x178n216.default-host.net`
MX	`mx20.ukraine.com.ua`⁽²⁰⁾
		A	2a0c:a80:0:b2c8::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-19-x178n200.default-host.net`
		A	2a0c:a80:0:b2d0::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-20-x178n208.default-host.net`
		A	2a0c:a80:0:b2d4::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-21-x178n212.default-host.net`
		A	2a0c:a80:0:b2d8::1^{🇺🇦 Ukraine-AS2a0c:a80::/29}
			PTR	`mail-mx-23-x178n216.default-host.net`
		A	185.234.178.200^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-19-x178n200.default-host.net`
		A	185.234.178.208^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-20-x178n208.default-host.net`
		A	185.234.178.212^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-21-x178n212.default-host.net`
		A	185.234.178.216^{🇺🇦 Ukraine-AS185.234.176.0/22}
			PTR	`mail-mx-23-x178n216.default-host.net`
TXT	`google-site-verification=lVVvlvHxXZg7VW58YU97hV_b6QHIZ0_HcoWvNS15g30`
TXT	`google-site-verification=uF3a_eriBauIocNNFmqISwmYVN4vQ2Gqk1x2h-ujQWw`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.231, 172.67.180.169
		IPv6 hints	2606:4700:3031::ac43:b4a9, 2606:4700:3034::6815:23e7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=156, name=cloudflare-ech.com
SOA	`leo.ns.cloudflare.com`dns@cloudflare.com serial=2411183068

`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=1786393108

rank #512459 globally
rank #39510 in the tld

Same first word

ctrcenter.org

DNS History

20 records (13 active, 7 former)

●NSleo.ns.cloudflare.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

○NSns14.inhostedns.com2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 01:58:54
○ 2026-03-02 11:14:30
○ 2026-08-10 20:40:34

○NSns24.inhostedns.net2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 01:58:54
○ 2026-03-02 11:14:30
○ 2026-08-10 20:40:34

○NSns34.inhostedns.org2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 01:58:54
○ 2026-03-02 11:14:30
○ 2026-08-10 20:40:34

●NSruth.ns.cloudflare.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXalt1.aspmx.l.google.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXalt2.aspmx.l.google.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXalt3.aspmx.l.google.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXalt4.aspmx.l.google.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXaspmx.l.google.com2026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●MXmx15.ukraine.com.ua2018-05-10 → 2026-08-10 · 2 obs

● 2018-05-10 01:58:54
● 2026-08-10 20:40:34

●MXmx20.ukraine.com.ua2018-05-10 → 2026-08-10 · 2 obs

● 2018-05-10 01:58:54
● 2026-08-10 20:40:34

●A104.21.35.2312026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

●A172.67.180.1692026-03-02 → 2026-08-10 · 3 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
● 2026-08-10 20:40:34

○A185.104.45.42018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 01:58:54
○ 2026-03-02 11:14:30
○ 2026-08-10 20:40:34

○A2606:4700:3030::6815:23e72026-03-02 → 2026-03-02 · 4 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
○ 2026-06-21 07:40:02
○ 2026-08-10 20:40:34

●A2606:4700:3031::ac43:b4a92026-06-21 → 2026-08-10 · 3 obs

○ 2026-03-02 11:14:30
● 2026-06-21 07:40:02
● 2026-08-10 20:40:34

○A2606:4700:3032::ac43:b4a92026-03-02 → 2026-03-02 · 4 obs

○ 2018-05-10 01:58:54
● 2026-03-02 11:14:30
○ 2026-06-21 07:40:02
○ 2026-08-10 20:40:34

●A2606:4700:3034::6815:23e72026-06-21 → 2026-08-10 · 3 obs

○ 2026-03-02 11:14:30
● 2026-06-21 07:40:02
● 2026-08-10 20:40:34

○A2a06:6440:0:2d04::12018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 01:58:54
○ 2026-03-02 11:14:30
○ 2026-08-10 20:40:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
ctrcenter.org	leo.ns.cloudflare.com, ruth.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.241

NS records: leo.ns.cloudflare.com, ruth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctrcenter.org (unsigned zone)

⏱️ Timing

Total: 510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.180.169, 104.21.35.231`
AAAA	2	`2606:4700:3034::6815:23e7, 2606:4700:3031::ac43:b4a9`
NS	2	`leo.ns.cloudflare.com, ruth.ns.cloudflare.com`
MX	7	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=lVVvlvHxXZg7VW5, google-site-verification=uF3a_eriBauIocN`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leo.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

ctrcenter.org directs to four IP numbers, which are 104.21.35.231, 172.67.180.169, 2606:4700:3031::ac43:b4a9 and 2606:4700:3034::6815:23e7.

Among the host names that share IP numbers with ctrcenter.org are digital-library.it, prowearplus.net, penaltyflash.com and two others.

Name Servers

ctrcenter.org uses two name servers for its delegation: leo.ns.cloudflare.com and ruth.ns.cloudflare.com.

ctrcenter.org has the same name server delegation as a number of other domains, such as neoplatonik.com.ua, oftv.com, lianhc.workers.dev and two more.

At least some of ctrcenter.org's name servers are shared with other domains, for example eis-macher.de, goamelia.xyz, myii.net and two more.

These name servers tend to be deployed in combination with the name servers tori.ns.cloudflare.com and phoenix.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname leo.ns.cloudflare.com directs to 108.162.195.241, 162.159.44.241 and 172.64.35.241 along with 3 other IP addresses.

Hostname ruth.ns.cloudflare.com directs to 108.162.192.143, 172.64.32.143 and 173.245.58.143 along with 3 other IP addresses.

Mail Servers

ctrcenter.org uses 7 mail servers for delivery: aspmx.l.google.com, mx15.ukraine.com.ua, mx20.ukraine.com.ua and 4 other.

ctrcenter.org shares at least some of its mail servers with other domains — for example good-collective.co.uk, ns500698.ns500758.ns500698.ns500698.ns500736.ns500735.ns500698.ns500735.ns500698.ns500576.ns500576.ns500708.ns500652.trackreceptor.com, ns500693.ns500693.ns500734.ns500693.ns500734.ns500588.ns500612.ns500612.ns500683.ns500632.ns500632.ns500612.dtrkdll.com and two more.

It is common to find these mail servers paired with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 more.

Host names resolving to 8 IP numbers:

Hostname mx15.ukraine.com.ua directs to 185.234.178.200, 185.234.178.208 and 185.234.178.212 along with 5 other IP addresses.

Hostname mx20.ukraine.com.ua directs to 185.234.178.200, 185.234.178.208 and 185.234.178.212 along with 5 other IP addresses.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 172.253.115.27 and 2607:f8b0:4004:c17::1b.

alt1.aspmx.l.google.com directs traffic to 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 2a0c:a80:0:b2c8::1 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 2a0c:a80:0:b2d0::1 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 2a0c:a80:0:b2d4::1 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 2a0c:a80:0:b2d8::1 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 185.234.178.200 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 185.234.178.208 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 185.234.178.212 IP addresses each.

Both mx15.ukraine.com.ua and mx20.ukraine.com.ua resolve to 185.234.178.216 IP addresses each.