🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`syduk.org`

DNSSEC	⚠️ Not signed
A	160.153.138.53^{🇳🇱 AS398787160.153.138.0/24 MWP}
		PTR	`53.138.153.160.host.secureserver.net`
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.markmonitor.com`
NS	`ns5.markmonitor.com`
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns6.markmonitor.com`
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com`
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
MX	`syduk-org.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::2^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo0p265cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00500.inbound.protection.outlook.com`
		A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo3p265cu00302.inbound.protection.outlook.com`
		A	52.101.99.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00502.inbound.protection.outlook.com`
TXT	`MS=ms31809312`
TXT	`v=spf1 include spf.protection.outlook.com -all`
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2026-01-22 #1

`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=1786954957

Previously MX for

syduk.org

Same first word

syduk.net

syduk.org

syduk.co.uk

Similar names

skydu.cn

sudyk.pl

dykus.com

skydu.com

skudy.net

duksy.com

dskyu.com

skudy.us

dusyk.ca

dusky.dev

dusky.com

dusky.ddns.net

dusky.be

udsky.com

yudsk.com

dusky.net

dusky.cn

ydsuk.org

dusky.sk

dysku.com

kydus.com

dusky.pro

dusky.nl

dukys.com

DNS History

17 records (9 active, 8 former)

○NSns.hns.net2015-06-25 → 2017-01-07 · 4 obs

● 2015-06-25 14:33:36
● 2017-01-07 20:49:34
○ 2019-12-31 10:10:08
○ 2026-08-17 08:43:28

○NSns1.hns.net2015-06-25 → 2017-01-07 · 4 obs

● 2015-06-25 14:33:36
● 2017-01-07 20:49:34
○ 2019-12-31 10:10:08
○ 2026-08-17 08:43:28

●NSns1.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

○NSns1.purplepelican.co.uk2019-12-31 → 2019-12-31 · 4 obs

○ 2017-01-07 20:49:34
● 2019-12-31 10:10:08
○ 2026-05-15 23:45:14
○ 2026-08-17 08:43:28

●NSns2.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

●NSns3.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

●NSns4.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

●NSns5.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

●NSns6.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

●NSns7.markmonitor.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

○MXmail.wowiwa.net2015-06-25 → 2017-01-07 · 4 obs

● 2015-06-25 14:33:36
● 2017-01-07 20:49:34
○ 2019-12-31 10:10:08
○ 2026-08-17 08:43:28

○MXsmtp.hns.net2015-06-25 → 2016-02-04 · 4 obs

● 2015-06-25 14:33:36
● 2016-02-04 00:53:04
○ 2016-05-01 23:05:12
○ 2026-08-17 08:43:28

●MXsyduk-org.mail.protection.outlook.com2026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

○MXsyduk.org2019-12-31 → 2019-12-31 · 4 obs

○ 2017-01-07 20:49:34
● 2019-12-31 10:10:08
○ 2026-05-15 23:45:14
○ 2026-08-17 08:43:28

●A160.153.138.532026-05-15 → 2026-08-17 · 3 obs

○ 2019-12-31 10:10:08
● 2026-05-15 23:45:14
● 2026-08-17 08:43:28

○A87.237.69.712015-06-25 → 2017-01-07 · 4 obs

● 2015-06-25 14:33:36
● 2017-01-07 20:49:34
○ 2019-12-31 10:10:08
○ 2026-08-17 08:43:28

○A91.207.51.1772019-12-31 → 2019-12-31 · 4 obs

○ 2017-01-07 20:49:34
● 2019-12-31 10:10:08
○ 2026-05-15 23:45:14
○ 2026-08-17 08:43:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
syduk.org	ns1.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com, ns2.markmonitor.com...	-

✅ Authoritative Response

Server:149.112.161.2

NS records: ns1.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com, ns2.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns3.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for syduk.org (unsigned zone)

⏱️ Timing

Total: 364ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.153.138.53`
NS	7	`ns6.markmonitor.com, ns7.markmonitor.com...`
MX	1	`syduk-org.mail.protection.outlook.com (p`
TXT	2	`v=spf1 include spf.protection.outlook.co, MS=ms31809312`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

IP Addresses

syduk.org has exactly one IP address — 160.153.138.53.

xn--prg-rla.at, avinectar.com, smithbaxter.co.uk plus two other host names have IP numbers in common with syduk.org.

Name Servers

syduk.org delegates authority to 7 name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com plus 4 other.

syduk.org has at least partial name server overlap with other domains, such as maroon.com, avayamobile.com, aarpsupplementalinsurance.net and two others.

It is common to find these name servers paired with the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names pointing to two IP addresses:

ns1.markmonitor.com directs traffic to 149.112.160.1 and 2620:10a:80a8::1.

ns2.markmonitor.com directs traffic to 176.97.158.1 and 2001:67c:10b8::1.

ns3.markmonitor.com directs traffic to 149.112.161.1 and 2620:10a:80a9::1.

ns4.markmonitor.com directs traffic to 192.174.68.1 and 2001:67c:1bc::1.

ns5.markmonitor.com directs traffic to 149.112.160.2 and 2620:10a:80a8::2.

ns6.markmonitor.com directs traffic to 176.97.158.3 and 2001:67c:10b8::3.

ns7.markmonitor.com directs traffic to 149.112.161.2 and 2620:10a:80a9::2.