`doubletree.pl`

DNSSEC	⚠️ Not signed
A	167.187.200.18^{🇺🇸 AS26529167.187.200.0/22 AC_HILTONWORL}
		PTR	`ftcrdf-nonsecure.hilton.com`
		PTR	`richardsondallas.hilton.com`
		PTR	`uksupply.hilton.com`
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}
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2023-08-17 #3

`pl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a-dns.pl` ⭐
	NS	`b-dns.pl`
	NS	`d-dns.pl`
	NS	`f-dns.pl`
	NS	`h-dns.pl`
	NS	`j-dns.pl`
	TXT	`ccTLD of Poland`
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1785220411

Same first word

DNS History

19 records (8 active, 11 former)

○NSns1.fastpark.net2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 01:30:46
○ 2015-10-22 18:18:08
○ 2026-07-28 21:19:58

●NSns1.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

○NSns1.parkingcrew.net2015-10-22 → 2016-04-01 · 5 obs

○ 2015-06-05 01:30:46
● 2015-10-22 18:18:08
● 2016-04-01 05:06:24
○ 2016-07-24 14:10:38
○ 2026-07-28 21:19:58

○NSns1.premium.pl2016-07-24 → 2016-07-24 · 4 obs

○ 2016-04-01 05:06:24
● 2016-07-24 14:10:38
○ 2017-05-17 20:04:30
○ 2026-07-28 21:19:58

○NSns2.fastpark.net2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 01:30:46
○ 2015-10-22 18:18:08
○ 2026-07-28 21:19:58

●NSns2.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

○NSns2.parkingcrew.net2015-10-22 → 2016-04-01 · 5 obs

○ 2015-06-05 01:30:46
● 2015-10-22 18:18:08
● 2016-04-01 05:06:24
○ 2016-07-24 14:10:38
○ 2026-07-28 21:19:58

○NSns2.premium.pl2016-07-24 → 2016-07-24 · 4 obs

○ 2016-04-01 05:06:24
● 2016-07-24 14:10:38
○ 2017-05-17 20:04:30
○ 2026-07-28 21:19:58

●NSns3.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

●NSns4.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

●NSns5.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

●NSns6.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

●NSns7.markmonitor.com2026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

○MXmail.h-email.net2015-10-22 → 2016-04-01 · 4 obs

● 2015-10-22 18:18:08
● 2016-04-01 05:06:24
○ 2016-07-24 14:10:38
○ 2026-07-28 21:19:58

●A167.187.200.182026-07-27 → 2026-07-28 · 3 obs

○ 2017-05-17 20:04:30
● 2026-07-27 12:34:44
● 2026-07-28 21:19:58

○A185.53.177.92015-10-22 → 2016-01-04 · 5 obs

○ 2015-06-05 01:30:46
● 2015-10-22 18:18:08
● 2016-01-04 06:56:50
○ 2016-04-01 05:06:24
○ 2026-07-28 21:19:58

○A188.128.255.2512016-07-24 → 2016-07-24 · 4 obs

○ 2016-04-01 05:06:24
● 2016-07-24 14:10:38
○ 2017-05-17 20:04:30
○ 2026-07-28 21:19:58

○A216.8.179.252015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 01:30:46
○ 2015-10-22 18:18:08
○ 2026-07-28 21:19:58

○A54.72.9.512016-04-01 → 2016-04-01 · 4 obs

○ 2016-01-04 06:56:50
● 2016-04-01 05:06:24
○ 2016-07-24 14:10:38
○ 2026-07-28 21:19:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	f-dns.pl, b-dns.pl, j-dns.pl, h-dns.pl...	-
doubletree.pl	ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com...	-

✅ Authoritative Response

Server:176.97.158.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doubletree.pl (unsigned zone)

⏱️ Timing

Total: 2109ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`167.187.200.18`
NS	7	`ns1.markmonitor.com, ns2.markmonitor.com...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

IP Addresses

doubletree.pl resolves to just one IP address, 167.187.200.18.

Two other host names, along with conradhotels.com.bs, kalastajatorppa.hilton.com and hilton-hotels.ps, also share IP numbers with doubletree.pl.

Name Servers

DNS for doubletree.pl is handled by 7 name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 others.

doubletree.pl shares at least some of its name servers with other domains, including avendra-payplatform.com, weddingpartyallnight.com, video-site-today.com and two others.

These name servers are frequently seen alongside the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names that have two IP addresses:

ns1.markmonitor.com has two IP addresses: 149.112.160.1 and 2620:10a:80a8::1.

ns2.markmonitor.com has two IP addresses: 176.97.158.1 and 2001:67c:10b8::1.

ns3.markmonitor.com has two IP addresses: 149.112.161.1 and 2620:10a:80a9::1.

ns4.markmonitor.com has two IP addresses: 192.174.68.1 and 2001:67c:1bc::1.

ns5.markmonitor.com has two IP addresses: 149.112.160.2 and 2620:10a:80a8::2.

ns6.markmonitor.com has two IP addresses: 176.97.158.3 and 2001:67c:10b8::3.

ns7.markmonitor.com has two IP addresses: 149.112.161.2 and 2620:10a:80a9::2.