`lctongcheng.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c888^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:44fc^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.252^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.200.136^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`donna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c097^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2097^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donna.ns.cloudflare.com`
		A	108.162.192.151^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	172.64.32.151^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	173.245.58.151^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
NS	`nash.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nash.ns.cloudflare.com`
		A	108.162.193.209^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	172.64.33.209^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	173.245.59.209^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.68.252, 172.67.200.136
		IPv6 hints	2606:4700:3030::ac43:c888, 2606:4700:3034::6815:44fc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=20, name=cloudflare-ech.com
SOA	`donna.ns.cloudflare.com`dns@cloudflare.com serial=2400946058

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776983296

Subdomains

www.lctongcheng.com

Same first word

lctongcheng.com

DNS History

21 records (6 active, 15 former)

○NSa.share-dns.com2026-03-13 → 2026-03-25 · 5 obs

○ 2019-02-25 09:48:42
● 2026-03-13 16:02:44
● 2026-03-25 14:21:28
○ 2026-04-06 15:40:26
○ 2026-04-23 22:47:36

○NSb.share-dns.net2026-03-13 → 2026-03-25 · 5 obs

○ 2019-02-25 09:48:42
● 2026-03-13 16:02:44
● 2026-03-25 14:21:28
○ 2026-04-06 15:40:26
○ 2026-04-23 22:47:36

●NSdonna.ns.cloudflare.com2026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

●NSnash.ns.cloudflare.com2026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

○NSns1.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○NSns2.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○NSns3.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○NSns4.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○NSns5.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○NSns6.dnsdun.com2019-02-25 → 2019-02-25 · 4 obs

○ 2016-05-04 10:31:02
● 2019-02-25 09:48:42
○ 2026-03-13 16:02:44
○ 2026-04-23 22:47:36

○NSns6.dnsdun.net2019-02-25 → 2019-02-25 · 4 obs

○ 2016-05-04 10:31:02
● 2019-02-25 09:48:42
○ 2026-03-13 16:02:44
○ 2026-04-23 22:47:36

○NSns6.ezdnscenter.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

○MXmxbiz1.qq.com2015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

●A104.21.68.2522026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

○A162.248.212.1402026-03-13 → 2026-03-25 · 5 obs

○ 2019-02-25 09:48:42
● 2026-03-13 16:02:44
● 2026-03-25 14:21:28
○ 2026-04-06 15:40:26
○ 2026-04-23 22:47:36

●A172.67.200.1362026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

○A192.168.1.12019-02-25 → 2019-02-25 · 4 obs

○ 2016-05-04 10:31:02
● 2019-02-25 09:48:42
○ 2026-03-13 16:02:44
○ 2026-04-23 22:47:36

○A23.245.217.762019-02-25 → 2019-02-25 · 4 obs

○ 2016-05-04 10:31:02
● 2019-02-25 09:48:42
○ 2026-03-13 16:02:44
○ 2026-04-23 22:47:36

●A2606:4700:3030::ac43:c8882026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

●A2606:4700:3034::6815:44fc2026-04-06 → 2026-04-23 · 3 obs

○ 2026-03-25 14:21:28
● 2026-04-06 15:40:26
● 2026-04-23 22:47:36

○A60.12.151.222015-06-17 → 2016-05-04 · 4 obs

● 2015-06-17 11:03:18
● 2016-05-04 10:31:02
○ 2019-02-25 09:48:42
○ 2026-04-23 22:47:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
lctongcheng.com	donna.ns.cloudflare.com, nash.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.209

NS records: donna.ns.cloudflare.com, nash.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lctongcheng.com (unsigned zone)

⏱️ Timing

Total: 150ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.200.136, 104.21.68.252`
AAAA	2	`2606:4700:3034::6815:44fc, 2606:4700:3030::ac43:c888`
NS	2	`donna.ns.cloudflare.com, nash.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`donna.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (donna.ns.cloudflare.com, donna.ns.cloudflare.com, donna.ns.cloudflare.com...)

Analysis

Hierarchy

The parent of www.lctongcheng.com is lctongcheng.com.

IP Addresses

lctongcheng.com maps to four IP numbers: 2606:4700:3030::ac43:c888, 2606:4700:3034::6815:44fc, 104.21.68.252 and 172.67.200.136.

Other host names such as jlqbt.com, verita12partners.click, cartel4dx33.com, rfal.cn and yodl.cn share IPs with lctongcheng.com.

Name Servers

Two name servers donna.ns.cloudflare.com and nash.ns.cloudflare.com handle the delegation for lctongcheng.com.

lctongcheng.com shares the same name server setup as other domains, for example duomitao.com, granny3.com, asquant.com, xingain.com and bvjie.com.

lctongcheng.com at least partially shares name servers with other domains, for example modernloveconnect.com, corefivesolutions.com, keithvarney.com, xmktxhubsx.com and recruitmentindia.in.

These name servers are commonly used with moura.ns.cloudflare.com and pablo.ns.cloudflare.com and aspen.ns.cloudflare.com.

Host names with six IP numbers:

donna.ns.cloudflare.com points to 2606:4700:50::adf5:3a97, 2803:f800:50::6ca2:c097, 2a06:98c1:50::ac40:2097, 108.162.192.151, 172.64.32.151 and 173.245.58.151.

nash.ns.cloudflare.com points to 2606:4700:58::adf5:3bd1, 2803:f800:50::6ca2:c1d1, 2a06:98c1:50::ac40:21d1, 108.162.193.209, 172.64.33.209 and 173.245.59.209.

lctongcheng.com - robtex.com

lctongcheng.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`lctongcheng.com`

`com`