mx.stackzero.dev - dns.ninja
mx.stackzero.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:e58🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:9e87🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.14.88Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.158.135🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.14.88, 172.67.158.135 | ||||||
| IPv6 hints | 2606:4700:3031::6815:e58, 2606:4700:3035::ac43:9e87 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com | ||||||
stackzero.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:e58🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:9e87🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.14.88Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.158.135🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jakub.ns.cloudflare.com ⭐ | ||||||
| NS | ullis.ns.cloudflare.com | ||||||
| MX | mx.stackzero.dev ⭐ | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.14.88, 172.67.158.135 | ||||||
| IPv6 hints | 2606:4700:3031::6815:e58, 2606:4700:3035::ac43:9e87 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com | ||||||
| SOA | jakub.ns.cloudflare.comdns@cloudflare.com serial=2416791796 | ||||||
MX for
Same first word
Similar names
Previous names
Next names
DNS History
4 records (4 active, 0 former)
●A104.21.14.882026-10-09 → 2026-10-09 · 2 obs
● 2026-10-09 09:00:54
● 2026-10-09 09:31:08
● 2026-10-09 09:31:08
●A172.67.158.1352026-10-09 → 2026-10-09 · 2 obs
● 2026-10-09 09:00:54
● 2026-10-09 09:31:08
● 2026-10-09 09:31:08
●A2606:4700:3031::6815:e582026-10-09 → 2026-10-09 · 2 obs
● 2026-10-09 09:00:54
● 2026-10-09 09:31:08
● 2026-10-09 09:31:08
●A2606:4700:3035::ac43:9e872026-10-09 → 2026-10-09 · 2 obs
● 2026-10-09 09:00:54
● 2026-10-09 09:31:08
● 2026-10-09 09:31:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com... | - |
| stackzero.dev | ullis.ns.cloudflare.com, jakub.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.85
NS records: ullis.ns.cloudflare.com, jakub.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stackzero.dev (unsigned zone)
⏱️ Timing
Total: 898ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.158.135, 104.21.14.88 |
| AAAA | 2 | 2606:4700:3035::ac43:9e87, 2606:4700:3031::6815:e58 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
Mail Server Role
The mail server mx.stackzero.dev processes email for stackzero.dev.
IP Addresses
mx.stackzero.dev has four IP addresses: 104.21.14.88, 172.67.158.135, 2606:4700:3031::6815:e58 and 2606:4700:3035::ac43:9e87.
Two other host names, along with benefitsofstretching.com, totalsports.com.tr and jobint.cl, also share IP numbers with mx.stackzero.dev.