`machineb2b.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b354^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:120f^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.15^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.179.84^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`laura.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`laura.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`laura.ns.cloudflare.com`
		A	108.162.192.183^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-108-162-192-183.defastlink.net`
		A	172.64.32.183^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-32-183.defastlink.net`
		A	173.245.58.183^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-173-245-58-183.defastlink.net`
NS	`mike.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c33f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mike.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:233f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mike.ns.cloudflare.com`
		A	108.162.195.63^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	162.159.44.63^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	172.64.35.63^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.18.15, 172.67.179.84
		IPv6	2606:4700:3034::ac43:b354, 2606:4700:3035::6815:120f
SOA	`laura.ns.cloudflare.com`dns@cloudflare.com serial=2398969156

`cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034546407

Same first word

machineb2b.cn

DNS History

13 records (6 active, 7 former)

○NSdns1.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

○NSdns2.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

○NSdns3.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

○NSdns4.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

○NSdns5.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

○NSdns6.iidns.com2015-07-24 → 2016-07-23 · 4 obs

● 2015-07-24 16:01:22
● 2016-07-23 17:13:38
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

●NSlaura.ns.cloudflare.com2026-03-10 → 2026-03-23 · 3 obs

○ 2016-07-23 17:13:38
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

●NSmike.ns.cloudflare.com2026-03-10 → 2026-03-23 · 3 obs

○ 2016-07-23 17:13:38
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

●A104.21.18.152026-03-10 → 2026-03-23 · 3 obs

○ 2015-12-05 01:39:10
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

●A172.67.179.842026-03-10 → 2026-03-23 · 3 obs

○ 2015-12-05 01:39:10
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

○A218.85.138.2462015-07-24 → 2015-12-05 · 4 obs

● 2015-07-24 16:01:22
● 2015-12-05 01:39:10
○ 2026-03-10 14:35:08
○ 2026-03-23 05:17:52

●A2606:4700:3034::ac43:b3542026-03-10 → 2026-03-23 · 3 obs

○ 2015-12-05 01:39:10
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

●A2606:4700:3035::6815:120f2026-03-10 → 2026-03-23 · 3 obs

○ 2015-12-05 01:39:10
● 2026-03-10 14:35:08
● 2026-03-23 05:17:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, b.dns.cn, c.dns.cn...	-
machineb2b.cn	mike.ns.cloudflare.com, laura.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.183

NS records: mike.ns.cloudflare.com, laura.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn

⏱️ Timing

Total: 3527ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.18.15, 172.67.179.84`
AAAA	2	`2606:4700:3034::ac43:b354, 2606:4700:3035::6815:120f`
NS	2	`laura.ns.cloudflare.com, mike.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`laura.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

Four IP numbers are pointed to by machineb2b.cn: 2606:4700:3034::ac43:b354, 2606:4700:3035::6815:120f, 104.21.18.15 and 172.67.179.84.

other host names including mail.whattheforkfoodblog.com, activenet.uk.com, bikr.ru, twonum.org and bitmax6.com share IP numbers with machineb2b.cn.

Name Servers

machineb2b.cn is delegated to two name servers laura.ns.cloudflare.com and mike.ns.cloudflare.com.

machineb2b.cn shares the same name server setup as other domains, for instance template-shop.cn, pczsj.cn, 733xks.cn, maihi.cn and j-hana.cn.

machineb2b.cn at least partially shares name servers with other domains, for instance codaex.de, tcpoint.co.il, ajitp.com, 99ifun58.xyz and commoditybasis.com.

These name servers are commonly used alongside augustus.ns.cloudflare.com and rodney.ns.cloudflare.com.

Host names with six IP numbers:

Host name laura.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab7, 2803:f800:50::6ca2:c0b7, 2a06:98c1:50::ac40:20b7, 108.162.192.183, 172.64.32.183 and 173.245.58.183.

Host name mike.ns.cloudflare.com points to: 2606:4700:58::a29f:2c3f, 2803:f800:50::6ca2:c33f, 2a06:98c1:50::ac40:233f, 108.162.195.63, 162.159.44.63 and 172.64.35.63.

machineb2b.cn - robtex.com

machineb2b.cn

cn

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`machineb2b.cn`

`cn`