`czsyd.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:24cf^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:c798^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.36.207^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.152^{🇺🇸 Cloudflare172.67.192.0/20 , 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	104.21.36.207, 172.67.199.152
		IPv6 hints	2606:4700:3030::6815:24cf, 2606:4700:3030::ac43:c798
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=40, name=cloudflare-ech.com
SOA	`dorthy.ns.cloudflare.com`dns@cloudflare.com serial=2402267199

`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=1777438236

Subdomains

mail.czsyd.com

Same first word

czsyd.com

Similar names

ydczs.com

yczds.com

ycdsz.com

yszdc.net

cdzys.gov.cn

dyczs.com

sdzcy.com

cdszy.com

szcyd.com

zscyd.com

czsdy.cn

szydc.cn

dzysc.com

szcdy.com

syzdc.com

czyds.com

sdczy.com

szydc.com

yzdcs.cn

szdcy.com

sydcz.cn

syzdc.cn

dczys.com

yszdc.cn

csdzy.com

scydz.com

czsdy.com

sdzyc.com

scdzy.com

cdzys.com

zcsyd.com

scydz.cn

cszyd.cn

yzdsc.com

cdsyz.com

dsyzc.com

DNS History

15 records (6 active, 9 former)

●NSdorthy.ns.cloudflare.com2026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

○NSmain2.ns365.net2015-07-04 → 2019-04-18 · 4 obs

● 2015-07-04 14:43:16
● 2019-04-18 21:35:18
○ 2021-03-16 17:10:26
○ 2026-04-29 05:15:04

○NSmeera.ns.cloudflare.com2021-03-16 → 2021-03-26 · 5 obs

○ 2019-04-18 21:35:18
● 2021-03-16 17:10:26
● 2021-03-26 03:47:08
○ 2026-04-19 07:01:24
○ 2026-04-29 05:15:04

○NSns5.gzidc.com2015-07-04 → 2019-04-18 · 4 obs

● 2015-07-04 14:43:16
● 2019-04-18 21:35:18
○ 2021-03-16 17:10:26
○ 2026-04-29 05:15:04

○NSns6.gzidc.com2015-07-04 → 2019-04-18 · 4 obs

● 2015-07-04 14:43:16
● 2019-04-18 21:35:18
○ 2021-03-16 17:10:26
○ 2026-04-29 05:15:04

●NSrayden.ns.cloudflare.com2026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

○NSsteven.ns.cloudflare.com2021-03-16 → 2021-03-26 · 5 obs

○ 2019-04-18 21:35:18
● 2021-03-16 17:10:26
● 2021-03-26 03:47:08
○ 2026-04-19 07:01:24
○ 2026-04-29 05:15:04

○MXmail.czsyd.com2015-07-04 → 2019-04-18 · 4 obs

● 2015-07-04 14:43:16
● 2019-04-18 21:35:18
○ 2021-03-16 17:10:26
○ 2026-04-29 05:15:04

●A104.21.36.2072026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

○A107.149.151.2122021-03-16 → 2021-03-26 · 5 obs

○ 2019-04-18 21:35:18
● 2021-03-16 17:10:26
● 2021-03-26 03:47:08
○ 2026-04-19 07:01:24
○ 2026-04-29 05:15:04

●A172.67.199.1522026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

○A183.90.186.982015-07-04 → 2017-01-24 · 4 obs

● 2015-07-04 14:43:16
● 2017-01-24 06:07:18
○ 2019-04-18 21:35:18
○ 2026-04-29 05:15:04

●A2606:4700:3030::6815:24cf2026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

●A2606:4700:3030::ac43:c7982026-04-19 → 2026-04-29 · 3 obs

○ 2021-03-26 03:47:08
● 2026-04-19 07:01:24
● 2026-04-29 05:15:04

○A39.109.12.2272019-04-18 → 2019-04-18 · 4 obs

○ 2017-01-24 06:07:18
● 2019-04-18 21:35:18
○ 2021-03-16 17:10:26
○ 2026-04-29 05:15:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
czsyd.com	dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.163

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for czsyd.com (unsigned zone)

⏱️ Timing

Total: 141ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.152, 104.21.36.207`
AAAA	2	`2606:4700:3030::ac43:c798, 2606:4700:3030::6815:24cf`
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.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

czsyd.com is parent of mail.czsyd.com.

IP Addresses

czsyd.com points to four IP numbers: 2606:4700:3030::6815:24cf, 2606:4700:3030::ac43:c798, 104.21.36.207 and 172.67.199.152.

Other host names, for instance financejobs.mysmartpros.com, mx2.karisto.net, www.gtcaprojectlinus.org, situ.in and quantumsystemsalliance.sbs share IP numbers with czsyd.com.

Name Servers

czsyd.com's delegation is to two name servers dorthy.ns.cloudflare.com and rayden.ns.cloudflare.com.

czsyd.com shares the same name server configuration as other domains, such as zhongfu-shop.com, heyidashuju.com, ylwzj.com, ms957.com and jc925.com.cn.

czsyd.com at least partially shares its name servers with other domains, for instance googuste.ai.in, jeromeclatworthy.com, altnews.info, trendworldhub.co.uk and aghazno10.com.

These name servers are often used together with the name servers jen.ns.cloudflare.com.

Host names with six IP numbers:

dorthy.ns.cloudflare.com points to: 2606:4700:50::adf5:3af9, 2803:f800:50::6ca2:c0f9, 2a06:98c1:50::ac40:20f9, 108.162.192.249, 172.64.32.249 and 173.245.58.249.

rayden.ns.cloudflare.com points to: 2606:4700:58::a29f:2ca3, 2803:f800:50::6ca2:c3a3, 2a06:98c1:50::ac40:23a3, 108.162.195.163, 162.159.44.163 and 172.64.35.163.

czsyd.com - robtex.com

czsyd.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`czsyd.com`

`com`