`mail.crystalsky.dev`

DNSSEC	⚠️ Not signed
A	217.81.122.115^{🇩🇪 DTAG217.80.0.0/12 Deutsche Telekom AG, Internet service provider}
		PTR	`pd9517a73.dip0.t-ipconnect.de`

`crystalsky.dev`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3034::ac43:c29c^{Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:341d^{Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.29^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.194.156^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carrera.ns.cloudflare.com` ⭐
NS	`harvey.ns.cloudflare.com`
MX	`mail.crystalsky.dev` ⭐
TXT	`google-site-verification=jS1A8MbefYZte_WqOEvR1oUa1J6CtLjGESJH-fMpPXc`
TXT	`v=spf1 mx a ip4:91.20.212.181 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.29, 172.67.194.156
		IPv6 hints	2606:4700:3034::ac43:c29c, 2606:4700:3036::6815:341d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=33, name=cloudflare-ech.com
SOA	`carrera.ns.cloudflare.com`dns@cloudflare.com serial=2408162773

MX for

crystalsky.dev

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DNS History

1 record (1 active, 0 former)

●A217.81.122.1152026-07-05 → 2026-07-06 · 2 obs

● 2026-07-05 11:59:06
● 2026-07-06 06:42:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
crystalsky.dev	harvey.ns.cloudflare.com, carrera.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.231

NS records: harvey.ns.cloudflare.com, carrera.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1264ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.81.122.115`

Analysis

Mail Server Role

mail.crystalsky.dev is a mail server for crystalsky.dev.

IP Addresses

mail.crystalsky.dev directs to one IP number, which is 217.81.122.115.

mail.crystalsky.dev - robtex.com