superusers.dev - dns.ninja
superusers.dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3032::6815:1aa2Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:8932Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.26.162Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.137.50Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | houston.ns.cloudflare.com ⭐ | ||||||
| NS | nicole.ns.cloudflare.com | ||||||
| MX | route1.mx.cloudflare.net ⭐ | ||||||
| A | 2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| MX | route3.mx.cloudflare.net(81) | ||||||
| A | 2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| MX | route2.mx.cloudflare.net(84) | ||||||
| A | 2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.26.162, 172.67.137.50 | ||||||
| IPv6 hints | 2606:4700:3032::6815:1aa2, 2606:4700:3035::ac43:8932 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=175, name=cloudflare-ech.com | ||||||
| SOA | houston.ns.cloudflare.comdns@cloudflare.com serial=2418889049 | ||||||
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.comcloud-dns-hostmaster@google.com serial=1 | ||||||
DNS History
9 records (9 active, 0 former)
●NShouston.ns.cloudflare.com2026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●NSnicole.ns.cloudflare.com2026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●MXroute1.mx.cloudflare.net2026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●MXroute2.mx.cloudflare.net2026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●MXroute3.mx.cloudflare.net2026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●A104.21.26.1622026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●A172.67.137.502026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●A2606:4700:3032::6815:1aa22026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
●A2606:4700:3035::ac43:89322026-08-31 → 2026-11-02 · 2 obs
● 2026-08-31 01:27:10
● 2026-11-02 12:29:12
● 2026-11-02 12:29:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| superusers.dev | nicole.ns.cloudflare.com, houston.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.32.211
NS records: nicole.ns.cloudflare.com, houston.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 956ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.26.162, 172.67.137.50 |
| AAAA | 2 | 2606:4700:3035::ac43:8932, 2606:4700:3032::6815:1aa2 |
| NS | 2 | houston.ns.cloudflare.com, nicole.ns.cloudflare.com |
| MX | 3 | route1.mx.cloudflare.net (pri: 79), route3.mx.cloudflare.net (pri: 81)... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | houston.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
superusers.dev points to the four IP addresses 104.21.26.162, 172.67.137.50, 2606:4700:3032::6815:1aa2 and 2606:4700:3035::ac43:8932.
Name Servers
superusers.dev is served by two delegated name servers, houston.ns.cloudflare.com and nicole.ns.cloudflare.com.
Mail Servers
superusers.dev is handled by three mail servers, route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.
Host names with 6 IP numbers:
route1.mx.cloudflare.net carries IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, with 3 other addresses beyond those.
route2.mx.cloudflare.net carries IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, with 3 other addresses beyond those.
route3.mx.cloudflare.net carries IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, with 3 other addresses beyond those.