`doubletree.ch`

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 2024-07-23 #1

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-07-28 #46

Same first word

DNS History

11 records (8 active, 3 former)

○NSns1.chrl.twtelecom.net2015-06-24 → 2017-06-22 · 4 obs

● 2015-06-24 15:06:08
● 2017-06-22 18:07:40
○ 2026-07-27 12:57:30
○ 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

○NSns1.nycl.twtelecom.net2015-06-24 → 2017-06-22 · 4 obs

● 2015-06-24 15:06:08
● 2017-06-22 18:07:40
○ 2026-07-27 12:57:30
○ 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

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

○ 2017-06-22 18:07:40
● 2026-07-27 12:57:30
● 2026-07-28 21:19:30

○A167.187.200.232015-06-24 → 2017-06-22 · 4 obs

● 2015-06-24 15:06:08
● 2017-06-22 18:07:40
○ 2026-07-27 12:57:30
○ 2026-07-28 21:19:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
doubletree.ch	ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com...	-

✅ Authoritative Response

Server:149.112.160.1

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.ch (unsigned zone)

⏱️ Timing

Total: 785ms | 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.ch points to a single IP number: 167.187.200.18.

Additional host names — theisletower.com, livingwellwashington.com, hiltonsuggest.com and two others — share IP numbers with doubletree.ch.

Name Servers

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

There is at least partial name server overlap between doubletree.ch and other domains — conradmoscow.com, signinamazon.com, aaaautotransportation.com and two more among them.

These name servers tend to appear in combination with the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names with two IP numbers:

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.