`jkcheng.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:aa08^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3708^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.55.8^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.8^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cris.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cris.ns.cloudflare.com`
		A	108.162.195.202^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cris.ns.cloudflare.com`
		A	162.159.44.202^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cris.ns.cloudflare.com`
		A	172.64.35.202^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cris.ns.cloudflare.com`
NS	`gloria.ns.cloudflare.com`
		A	2606:4700:50::a29f:2610^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gloria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c210^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gloria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2210^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gloria.ns.cloudflare.com`
		A	108.162.194.16^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gloria.ns.cloudflare.com`
		A	162.159.38.16^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gloria.ns.cloudflare.com`
		A	172.64.34.16^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gloria.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.55.8, 172.67.170.8
		IPv6 hints	2606:4700:3033::ac43:aa08, 2606:4700:3035::6815:3708
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=118, name=cloudflare-ech.com
SOA	`cris.ns.cloudflare.com`dns@cloudflare.com serial=2402136160

`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=1777373726

Same first word

jkcheng.com

Similar names

kjcheng.us

chengkj.com

chengjk.com

DNS History

17 records (6 active, 11 former)

●NScris.ns.cloudflare.com2026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

○NSdns1.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns10.hichina.com2017-01-11 → 2017-01-11 · 4 obs

○ 2016-04-27 10:49:22
● 2017-01-11 04:15:52
○ 2026-04-10 00:50:36
○ 2026-04-28 11:01:34

○NSdns2.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns3.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns4.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns5.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns6.iidns.com2015-07-02 → 2016-04-27 · 4 obs

● 2015-07-02 22:23:00
● 2016-04-27 10:49:22
○ 2017-01-11 04:15:52
○ 2026-04-28 11:01:34

○NSdns9.hichina.com2017-01-11 → 2017-01-11 · 4 obs

○ 2016-04-27 10:49:22
● 2017-01-11 04:15:52
○ 2026-04-10 00:50:36
○ 2026-04-28 11:01:34

●NSgloria.ns.cloudflare.com2026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

○MXmxn.mxhichina.com2017-01-11 → 2017-01-11 · 3 obs

● 2017-01-11 04:15:52
○ 2026-04-10 00:50:36
○ 2026-04-28 11:01:34

○MXmxw.mxhichina.com2017-01-11 → 2017-01-11 · 3 obs

● 2017-01-11 04:15:52
○ 2026-04-10 00:50:36
○ 2026-04-28 11:01:34

●A104.21.55.82026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

○A123.56.48.52017-01-11 → 2017-01-11 · 3 obs

● 2017-01-11 04:15:52
○ 2026-04-10 00:50:36
○ 2026-04-28 11:01:34

●A172.67.170.82026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

●A2606:4700:3033::ac43:aa082026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

●A2606:4700:3035::6815:37082026-04-10 → 2026-04-28 · 3 obs

○ 2017-01-11 04:15:52
● 2026-04-10 00:50:36
● 2026-04-28 11:01:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net...	-
jkcheng.com	gloria.ns.cloudflare.com, cris.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.202

NS records: gloria.ns.cloudflare.com, cris.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jkcheng.com (unsigned zone)

⏱️ Timing

Total: 350ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.170.8, 104.21.55.8`
AAAA	2	`2606:4700:3033::ac43:aa08, 2606:4700:3035::6815:3708`
NS	2	`cris.ns.cloudflare.com, gloria.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cris.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

jkcheng.com maps to four IP numbers: 2606:4700:3033::ac43:aa08, 2606:4700:3035::6815:3708, 104.21.55.8 and 172.67.170.8.

Other host names such as www.facastramontina.com, hercules.vivo.co, 1572490.com.cdn.cloudflare.net, misreport.net and chiothaicho.com share IPs with jkcheng.com.

Name Servers

Two name servers cris.ns.cloudflare.com and gloria.ns.cloudflare.com handle the delegation for jkcheng.com.

jkcheng.com shares the same name server setup as other domains, for example jnewsoft.com, wxt18.com, yinghualvjing.com, klshzyw.com and jianshanghuaye.com.

jkcheng.com at least partially shares name servers with other domains, for example engidesa.com, 83r.com, b4o2o3r.com, laoyd.com and englandmotorcoach.com.

these name servers commonly pair with jamie.ns.cloudflare.com, sloan.ns.cloudflare.com, demi.ns.cloudflare.com and benedict.ns.cloudflare.com.

Host names with six IP numbers:

cris.ns.cloudflare.com points to 2606:4700:58::a29f:2cca, 2803:f800:50::6ca2:c3ca, 2a06:98c1:50::ac40:23ca, 108.162.195.202, 162.159.44.202 and 172.64.35.202.

gloria.ns.cloudflare.com points to 2606:4700:50::a29f:2610, 2803:f800:50::6ca2:c210, 2a06:98c1:50::ac40:2210, 108.162.194.16, 162.159.38.16 and 172.64.34.16.

jkcheng.com - robtex.com

jkcheng.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`jkcheng.com`

`com`