`castech.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:a3^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:1a3^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4662^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.0.163^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.1.163^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.70.98^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`melody.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26fa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melody.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`melody.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`melody.ns.cloudflare.com`
		A	108.162.194.250^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melody.ns.cloudflare.com`
		A	162.159.38.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melody.ns.cloudflare.com`
		A	172.64.34.250^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melody.ns.cloudflare.com`
NS	`nico.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nico.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c393^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nico.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2393^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nico.ns.cloudflare.com`
		A	108.162.195.147^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nico.ns.cloudflare.com`
		A	162.159.44.147^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nico.ns.cloudflare.com`
		A	172.64.35.147^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nico.ns.cloudflare.com`
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
TXT	`brevo-code:53b619426da8992a69bfe4984f83be32`
TXT	`google-site-verification=RWIokXgThtzdTCQFu1Cr8MDjZv3G_ycmoQOg9RlpFo4`
TXT	`v=spf1 +mx +a +ip4:34.196.99.139 ~all`
TXT	`v=spf1 include:amazonses.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.0.163, 104.26.1.163, 172.67.70.98
		IPv6 hints	2606:4700:20::681a:a3, 2606:4700:20::681a:1a3, 2606:4700:20::ac43:4662
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=252, name=cloudflare-ech.com
SOA	`melody.ns.cloudflare.com`dns@cloudflare.com serial=2403708335

`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

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DNS History

17 records (9 active, 8 former)

●NSmelody.ns.cloudflare.com2026-03-05 → 2026-05-10 · 2 obs

● 2026-03-05 13:38:50
● 2026-05-10 00:23:46

●NSnico.ns.cloudflare.com2026-03-05 → 2026-05-10 · 2 obs

● 2026-03-05 13:38:50
● 2026-05-10 00:23:46

●MXinbound-smtp.us-east-1.amazonaws.com2026-03-05 → 2026-05-10 · 2 obs

● 2026-03-05 13:38:50
● 2026-05-10 00:23:46

●A104.26.0.1632026-03-05 → 2026-05-10 · 5 obs

● 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

●A104.26.1.1632026-03-05 → 2026-05-10 · 5 obs

● 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

●A172.67.70.982026-03-05 → 2026-05-10 · 5 obs

● 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

○A188.114.96.02026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-06 12:10:24
● 2026-03-28 13:22:54
○ 2026-04-20 14:12:42
○ 2026-05-10 00:23:46

○A188.114.96.42026-03-05 → 2026-05-10 · 2 obs

○ 2026-03-05 13:38:50
○ 2026-05-10 00:23:46

○A188.114.97.02026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-06 12:10:24
● 2026-03-28 13:22:54
○ 2026-04-20 14:12:42
○ 2026-05-10 00:23:46

○A188.114.97.42026-03-05 → 2026-05-10 · 2 obs

○ 2026-03-05 13:38:50
○ 2026-05-10 00:23:46

●A2606:4700:20::681a:1a32026-03-06 → 2026-05-10 · 5 obs

○ 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

●A2606:4700:20::681a:a32026-03-06 → 2026-05-10 · 5 obs

○ 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

●A2606:4700:20::ac43:46622026-03-06 → 2026-05-10 · 5 obs

○ 2026-03-05 13:38:50
● 2026-03-06 12:10:24
○ 2026-03-28 13:22:54
● 2026-04-20 14:12:42
● 2026-05-10 00:23:46

○A2a06:98c1:3120::2026-03-05 → 2026-03-28 · 5 obs

● 2026-03-05 13:38:50
○ 2026-03-06 12:10:24
● 2026-03-28 13:22:54
○ 2026-04-20 14:12:42
○ 2026-05-10 00:23:46

○A2a06:98c1:3120::42026-03-05 → 2026-05-10 · 2 obs

○ 2026-03-05 13:38:50
○ 2026-05-10 00:23:46

○A2a06:98c1:3121::2026-03-05 → 2026-03-28 · 5 obs

● 2026-03-05 13:38:50
○ 2026-03-06 12:10:24
● 2026-03-28 13:22:54
○ 2026-04-20 14:12:42
○ 2026-05-10 00:23:46

○A2a06:98c1:3121::42026-03-05 → 2026-05-10 · 2 obs

○ 2026-03-05 13:38:50
○ 2026-05-10 00:23:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
castech.dev	melody.ns.cloudflare.com, nico.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.147

NS records: melody.ns.cloudflare.com, nico.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for castech.dev (unsigned zone)

⏱️ Timing

Total: 713ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`172.67.70.98, 104.26.0.163...`
AAAA	3	`2606:4700:20::ac43:4662, 2606:4700:20::681a:1a3...`
NS	2	`melody.ns.cloudflare.com, nico.ns.cloudflare.com`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	4	`brevo-code:53b619426da8992a69bfe4984f83b, google-site-verification=RWIokXgThtzdTCQ...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`melody.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

castech.dev points to six IP numbers: 2606:4700:20::681a:a3, 2606:4700:20::681a:1a3, 2606:4700:20::ac43:4662, 104.26.0.163, 104.26.1.163 and 172.67.70.98.

Other host names, for instance resolve.cenprot.org.br, eet.nu, roganfamilycare.com.au, mars.eet.nu and analytics-endpoint.publir.com share IP numbers with castech.dev.

Name Servers

castech.dev has two name servers: melody.ns.cloudflare.com and nico.ns.cloudflare.com.

castech.dev shares the same name server setup as other domains, for example pafitorajautara.org, blissfulmassagewarsaw.com, ordibest.com, macro2022.org and czlingyue.com.

castech.dev shares some name servers with other domains, for example betplay569bet.co, webbuildermax.com, nerdybeila.com, torrenttip212.top and cdfvgb.com.

These name servers are often used together with rocky.ns.cloudflare.com, julissa.ns.cloudflare.com and harley.ns.cloudflare.com.

Host names with six IP numbers: melody.ns.cloudflare.com points to: 2606:4700:50::a29f:26fa, 2803:f800:50::6ca2:c2fa, 2a06:98c1:50::ac40:22fa, 108.162.194.250, 162.159.38.250 and 172.64.34.250; nico.ns.cloudflare.com points to: 2606:4700:58::a29f:2c93, 2803:f800:50::6ca2:c393, 2a06:98c1:50::ac40:2393, 108.162.195.147, 162.159.44.147 and 172.64.35.147.

Mail Servers

castech.dev is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

castech.dev shares the mail server setup with other domains, for example citizentrader.com, automateprofiles.com, steph.slack.com, bethpage.ca and testsoetou.slack.com.

castech.dev shares some mail servers with other domains, at least partially; for instance ecertrewards.com, athree.co, fastcom.com.br, childrenswi.atlassian.net and zoomin-software.atlassian.net.

these mail servers are commonly used alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.

The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.

castech.dev - robtex.com

castech.dev

dev

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`castech.dev`

`dev`