`doubletreesciencecity.com.cn`

DNSSEC	⚠️ Not signed
A	3.33.139.32^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`aeedc42b70c898c66.awsglobalaccelerator.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` ⚠️ Not in parent delegation
		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 2014-08-01 #2

`com.cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.cn` ⚠️ Not in parent delegation
	NS	`c.dns.cn` ⚠️ Not in parent delegation
	NS	`cns.cernet.net` ⚠️ Not in parent delegation
	NS	`d.dns.cn` ⚠️ Not in parent delegation
	NS	`e.dns.cn` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2030719420

WOT: NOT_SAFE (20/100)

Same first word

doubletreesciencecity.com

doubletreesciencecity.com.cn

DNS History

8 records (8 active, 0 former)

●NSns1.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns2.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns3.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns4.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns5.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns6.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●NSns7.markmonitor.com2026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

●A3.33.139.322026-07-27 → 2026-08-01 · 2 obs

● 2026-07-27 12:40:20
● 2026-08-01 08:17:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	c.dns.cn, a.dns.cn, b.dns.cn, e.dns.cn...	-
doubletreesciencecity.com.cn	ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com...	-

✅ Authoritative Response

Server:192.174.68.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doubletreesciencecity.com.cn (unsigned zone)

⏱️ Timing

Total: 967ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`3.33.139.32`
NS	7	`ns5.markmonitor.com, ns4.markmonitor.com...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

IP Addresses

doubletreesciencecity.com.cn resolves to just one IP address, 3.33.139.32.

Two other host names, along with ihg.lv, antimalwarebot.com and cattle.net.au, also share IP numbers with doubletreesciencecity.com.cn.

Name Servers

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

doubletreesciencecity.com.cn has at least partial name server overlap with other domains, such as r-tspecialtyonline.com, club-carlson.com, twilioclient.org 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 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.