cysn.dev - dns.ninja

`cysn.dev`

DNSSEC	⚠️ Not signed
NS	`bethany.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:261f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bethany.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c21f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bethany.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:221f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bethany.ns.cloudflare.com`
		A	108.162.194.31^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bethany.ns.cloudflare.com`
		A	162.159.38.31^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bethany.ns.cloudflare.com`
		A	172.64.34.31^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bethany.ns.cloudflare.com`
NS	`tanner.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c61^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c361^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tanner.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2361^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tanner.ns.cloudflare.com`
		A	108.162.195.97^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	162.159.44.97^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	172.64.35.97^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=hx2oprW1fSMiPGEo`
TXT	`brevo-code:9cfb1a1bbc6741a8c07556926879f174`
TXT	`v=spf1 include:icloud.com ~all`
SOA	`bethany.ns.cloudflare.com`dns@cloudflare.com serial=2409777803

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Subdomains

ocsa3.cysn.dev

Same first word

cysn.blogspot.com

cysn.dev

cysn.com

cysn.cc

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yncs.org

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sync.com.br

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nycs.hu

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csny.de

scyn.cn

nysc.us

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DNS History

4 records (4 active, 0 former)

●NSbethany.ns.cloudflare.com2026-04-22 → 2026-07-20 · 2 obs

● 2026-04-22 14:00:40
● 2026-07-20 13:11:22

●NStanner.ns.cloudflare.com2026-04-22 → 2026-07-20 · 2 obs

● 2026-04-22 14:00:40
● 2026-07-20 13:11:22

●MXmx01.mail.icloud.com2026-04-22 → 2026-07-20 · 2 obs

● 2026-04-22 14:00:40
● 2026-07-20 13:11:22

●MXmx02.mail.icloud.com2026-04-22 → 2026-07-20 · 2 obs

● 2026-04-22 14:00:40
● 2026-07-20 13:11:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
cysn.dev	tanner.ns.cloudflare.com, bethany.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.97

NS records: tanner.ns.cloudflare.com, bethany.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cysn.dev (unsigned zone)

⏱️ Timing

Total: 1855ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`bethany.ns.cloudflare.com, tanner.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	3	`apple-domain=hx2oprW1fSMiPGEo, brevo-code:9cfb1a1bbc6741a8c07556926879f...`
SOA	1	`bethany.ns.cloudflare.com dns.cloudflare`

Analysis

Hierarchy

The domain ocsa3.cysn.dev falls under the parent cysn.dev.

Name Servers

cysn.dev is served by two delegated name servers, bethany.ns.cloudflare.com and tanner.ns.cloudflare.com.

cysn.dev uses the same name servers as several other domains — among them rovemobile.com, petropavlovskoe64.ru, qline.co.th and two more.

At least some of cysn.dev's name servers are shared with other domains, for example esg.guide, solarsurge.com.au, oy.kg and two more.

These name servers are often deployed together with the name servers gina.ns.cloudflare.com, iris.ns.cloudflare.com, martin.ns.cloudflare.com and byron.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

bethany.ns.cloudflare.com carries IP addresses 108.162.194.31, 162.159.38.31 and 172.64.34.31, with 3 other addresses beyond those.

tanner.ns.cloudflare.com carries IP addresses 108.162.195.97, 162.159.44.97 and 172.64.35.97, with 3 other addresses beyond those.

Mail Servers

Mail for cysn.dev is handled by two mail servers — mx01.mail.icloud.com and mx02.mail.icloud.com.

cysn.dev uses an identical mail server configuration to several other domains — among them simonpeak.com, parismediagroup.com, innn.in and two more.

cysn.dev overlaps on mail servers with several other domains, for example dme24.com, emendology.com, starisles.com and kamalmaharaj.com.

Hostnames that resolve to 6 IP addresses:

mx01.mail.icloud.com carries IP addresses 17.42.251.62, 17.56.9.31 and 17.57.152.5, with 3 other addresses beyond those.

mx02.mail.icloud.com carries IP addresses 17.42.251.62, 17.56.9.31 and 17.57.152.5, with 3 other addresses beyond those.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.42.251.62 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.56.9.31 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.152.5 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.154.33 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.155.25 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.156.30 IP addresses.