estuda.dev - dns.ninja

`estuda.dev`

DNSSEC	⚠️ Not signed
NS	`joyce.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:260e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`joyce.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c20e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`joyce.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:220e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`joyce.ns.cloudflare.com`
		A	108.162.194.14^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`joyce.ns.cloudflare.com`
		A	162.159.38.14^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`joyce.ns.cloudflare.com`
		A	172.64.34.14^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`joyce.ns.cloudflare.com`
NS	`walt.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c194^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`walt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2194^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`walt.ns.cloudflare.com`
		A	108.162.193.148^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	172.64.33.148^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	173.245.59.148^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
SOA	`joyce.ns.cloudflare.com`dns@cloudflare.com serial=2410318502

`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)

Same first word

estuda.com.br

estuda.org

estuda.dev

estuda.com

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DNS History

2 records (2 active, 0 former)

●NSjoyce.ns.cloudflare.com2026-08-04 → 2026-08-08 · 2 obs

● 2026-08-04 03:01:42
● 2026-08-08 10:16:50

●NSwalt.ns.cloudflare.com2026-08-04 → 2026-08-08 · 2 obs

● 2026-08-04 03:01:42
● 2026-08-08 10:16:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
estuda.dev	walt.ns.cloudflare.com, joyce.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.148

NS records: walt.ns.cloudflare.com, joyce.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for estuda.dev (unsigned zone)

⏱️ Timing

Total: 571ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`joyce.ns.cloudflare.com, walt.ns.cloudflare.com`
SOA	1	`joyce.ns.cloudflare.com dns.cloudflare.c`

Analysis

Name Servers

estuda.dev is served by two delegated name servers, joyce.ns.cloudflare.com and walt.ns.cloudflare.com.

The name server configuration of estuda.dev is shared with other domains, for instance estudavest.com.br, estuda.com.br, sut1.co.uk and two others.

estuda.dev shares at least some of its name servers with other domains, including gpsled.cn, mc-res.com, 20bets-site.com and two others.

These name servers are frequently seen alongside the name servers jermaine.ns.cloudflare.com, jeremy.ns.cloudflare.com, david.ns.cloudflare.com and marvin.ns.cloudflare.com.

Hosts with 6 IP addresses each:

joyce.ns.cloudflare.com carries IP addresses 108.162.194.14, 162.159.38.14 and 172.64.34.14, with 3 other addresses beyond those.

walt.ns.cloudflare.com carries IP addresses 108.162.193.148, 172.64.33.148 and 173.245.59.148, with 3 other addresses beyond those.