rocketseat.dev - dns.ninja

`rocketseat.dev`

DNSSEC	⚠️ Not signed
NS	`byron.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c43^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`byron.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c343^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`byron.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2343^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`byron.ns.cloudflare.com`
		A	108.162.195.67^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`byron.ns.cloudflare.com`
		A	162.159.44.67^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`byron.ns.cloudflare.com`
		A	172.64.35.67^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`byron.ns.cloudflare.com`
NS	`ziggy.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ziggy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ziggy.ns.cloudflare.com`
		A	108.162.194.237^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	162.159.38.237^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	172.64.34.237^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
MX	`mx2.zoho.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽³⁰⁾
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`zoho-verification=zb15700261.zmverify.zoho.com`
SOA	`byron.ns.cloudflare.com`dns@cloudflare.com serial=2408494357

`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

api.rocketseat.dev

himalia.rocketseat.dev

Same first word

rocketseat.com.br

rocketseat.dev

rocketseat.com

Similar names

seatrocket.com

rockestate.be

ecostartek.com

DNS History

9 records (5 active, 4 former)

●NSbyron.ns.cloudflare.com2026-07-11 → 2026-07-11 · 2 obs

○ 2026-02-17 19:57:40
● 2026-07-11 03:35:48

○NSns-1282.awsdns-32.org2026-02-17 → 2026-02-17 · 2 obs

● 2026-02-17 19:57:40
○ 2026-07-11 03:35:48

○NSns-1811.awsdns-34.co.uk2026-02-17 → 2026-02-17 · 2 obs

● 2026-02-17 19:57:40
○ 2026-07-11 03:35:48

○NSns-434.awsdns-54.com2026-02-17 → 2026-02-17 · 2 obs

● 2026-02-17 19:57:40
○ 2026-07-11 03:35:48

○NSns-648.awsdns-17.net2026-02-17 → 2026-02-17 · 2 obs

● 2026-02-17 19:57:40
○ 2026-07-11 03:35:48

●NSziggy.ns.cloudflare.com2026-07-11 → 2026-07-11 · 2 obs

○ 2026-02-17 19:57:40
● 2026-07-11 03:35:48

●MXmx.zoho.com2026-07-11 → 2026-07-11 · 1 obs

● 2026-07-11 03:35:48

●MXmx2.zoho.com2026-07-11 → 2026-07-11 · 1 obs

● 2026-07-11 03:35:48

●MXmx3.zoho.com2026-07-11 → 2026-07-11 · 1 obs

● 2026-07-11 03:35:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
rocketseat.dev	ziggy.ns.cloudflare.com, byron.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.237

NS records: ziggy.ns.cloudflare.com, byron.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rocketseat.dev (unsigned zone)

⏱️ Timing

Total: 317ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`byron.ns.cloudflare.com, ziggy.ns.cloudflare.com`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	1	`zoho-verification=zb15700261.zmverify.zo`
SOA	1	`byron.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

api.rocketseat.dev and himalia.rocketseat.dev are both subdomains of rocketseat.dev.

Name Servers

rocketseat.dev is served by two delegated name servers, byron.ns.cloudflare.com and ziggy.ns.cloudflare.com.

rocketseat.dev uses the same name servers as several other domains — among them rocketseat.com.br, mygiftiogiftmailcard.com, candoursocketingmachine.com and two more.

rocketseat.dev partially shares its NS delegation with several other domains, including creasoft.com.pe, sbkijkduin.nl, helpfulinfoforyou.com and two others.

These name servers are regularly seen alongside amy.ns.cloudflare.com and ignat.ns.cloudflare.com as name servers.

Hostnames that resolve to 6 IP addresses:

byron.ns.cloudflare.com carries IP addresses 108.162.195.67, 162.159.44.67 and 172.64.35.67, with 3 other addresses beyond those.

ziggy.ns.cloudflare.com carries IP addresses 108.162.194.237, 162.159.38.237 and 172.64.34.237, with 3 other addresses beyond those.

Mail Servers

rocketseat.dev uses three mail servers — mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

rocketseat.dev has at least partial mail server overlap with other domains such as escsat.com.br, forceti.com.br, no-net.org and two more.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com all resolve to 204.141.33.44, with each host carrying exactly one IP address.

The host names mx2.zoho.com, mx3.zoho.com and mx.zoho.com each resolve to 204.141.33.44.