`techsew.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:95d4^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1dda^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.218^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.212^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dorthy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
NS	`rayden.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rayden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rayden.ns.cloudflare.com`
		A	108.162.195.163^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	162.159.44.163^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	172.64.35.163^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.29.218, 172.67.149.212
		IPv6 hints	2606:4700:3031::ac43:95d4, 2606:4700:3033::6815:1dda
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=19, name=cloudflare-ech.com
SOA	`dorthy.ns.cloudflare.com`dns@cloudflare.com serial=2405433297

`cn`

	DNSSEC	🔒 Signed (DS record present)
	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=2035005270

Same first word

techsew.com

techsew.cn

techsew.ca

Similar names

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westech.co.uk

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sewtech.org

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techwes.com

westech.com.au

eswtech.com

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DNS History

12 records (6 active, 6 former)

●NSdorthy.ns.cloudflare.com2026-04-17 → 2026-07-05 · 2 obs

● 2026-04-17 22:21:04
● 2026-07-05 11:14:42

●NSrayden.ns.cloudflare.com2026-04-17 → 2026-07-05 · 2 obs

● 2026-04-17 22:21:04
● 2026-07-05 11:14:42

●A104.21.29.2182026-05-02 → 2026-07-05 · 6 obs

○ 2026-04-17 22:21:04
● 2026-05-02 14:54:16
● 2026-05-29 09:02:06
○ 2026-06-21 14:45:34
● 2026-07-03 18:11:36
● 2026-07-05 11:14:42

●A172.67.149.2122026-05-02 → 2026-07-05 · 6 obs

○ 2026-04-17 22:21:04
● 2026-05-02 14:54:16
● 2026-05-29 09:02:06
○ 2026-06-21 14:45:34
● 2026-07-03 18:11:36
● 2026-07-05 11:14:42

○A188.114.96.02026-04-17 → 2026-06-21 · 6 obs

● 2026-04-17 22:21:04
○ 2026-05-02 14:54:16
○ 2026-05-29 09:02:06
● 2026-06-21 14:45:34
○ 2026-07-03 18:11:36
○ 2026-07-05 11:14:42

○A188.114.97.02026-04-17 → 2026-06-21 · 6 obs

● 2026-04-17 22:21:04
○ 2026-05-02 14:54:16
○ 2026-05-29 09:02:06
● 2026-06-21 14:45:34
○ 2026-07-03 18:11:36
○ 2026-07-05 11:14:42

○A2606:4700:3031::6815:1dda2026-05-02 → 2026-05-29 · 5 obs

○ 2026-04-17 22:21:04
● 2026-05-02 14:54:16
● 2026-05-29 09:02:06
○ 2026-06-21 14:45:34
○ 2026-07-05 11:14:42

●A2606:4700:3031::ac43:95d42026-07-03 → 2026-07-05 · 3 obs

○ 2026-06-21 14:45:34
● 2026-07-03 18:11:36
● 2026-07-05 11:14:42

○A2606:4700:3032::ac43:95d42026-05-02 → 2026-05-29 · 5 obs

○ 2026-04-17 22:21:04
● 2026-05-02 14:54:16
● 2026-05-29 09:02:06
○ 2026-06-21 14:45:34
○ 2026-07-05 11:14:42

●A2606:4700:3033::6815:1dda2026-07-03 → 2026-07-05 · 3 obs

○ 2026-06-21 14:45:34
● 2026-07-03 18:11:36
● 2026-07-05 11:14:42

○A2a06:98c1:3120::2026-04-17 → 2026-06-21 · 6 obs

● 2026-04-17 22:21:04
○ 2026-05-02 14:54:16
○ 2026-05-29 09:02:06
● 2026-06-21 14:45:34
○ 2026-07-03 18:11:36
○ 2026-07-05 11:14:42

○A2a06:98c1:3121::2026-04-17 → 2026-06-21 · 6 obs

● 2026-04-17 22:21:04
○ 2026-05-02 14:54:16
○ 2026-05-29 09:02:06
● 2026-06-21 14:45:34
○ 2026-07-03 18:11:36
○ 2026-07-05 11:14:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
techsew.cn	dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.249

NS records: dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techsew.cn (unsigned zone)

⏱️ Timing

Total: 2187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.29.218, 172.67.149.212`
AAAA	2	`2606:4700:3033::6815:1dda, 2606:4700:3031::ac43:95d4`
NS	2	`dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dorthy.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

techsew.cn resolves to four IP addresses: 104.21.29.218, 172.67.149.212, 2606:4700:3031::ac43:95d4 and 2606:4700:3033::6815:1dda.

Among the host names that share IP numbers with techsew.cn are fgxle.net, www.jiewu.org, boonar.com and two others.

Name Servers

techsew.cn is served by two delegated name servers, dorthy.ns.cloudflare.com and rayden.ns.cloudflare.com.

techsew.cn has the same name server delegation as a number of other domains, such as shlianfeng.com, qmyhw.com, wxchinwin.com and two more.

techsew.cn has at least partial name server overlap with other domains, such as xzdingye.com, ttshan.com, fleetopticsinc.cyou and two others.

It is common to see these name servers used together with name servers abdullah.ns.cloudflare.com and jen.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

dorthy.ns.cloudflare.com carries IP addresses 108.162.192.249, 172.64.32.249 and 173.245.58.249, with 3 other addresses beyond those.

rayden.ns.cloudflare.com carries IP addresses 108.162.195.163, 162.159.44.163 and 172.64.35.163, with 3 other addresses beyond those.

techsew.cn - robtex.com

techsew.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`techsew.cn`

`cn`