duel.nu - robtex.com
duel.nu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:1936🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:def7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.25.54Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.222.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dean.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c199🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2199🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| A | 108.162.193.153🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| A | 172.64.33.153🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| A | 173.245.59.153🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dean.ns.cloudflare.com | ||||||
| NS | hope.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3aa3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0a3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20a3🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| A | 108.162.192.163🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| A | 172.64.32.163🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| A | 173.245.58.163🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hope.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.25.54, 172.67.222.247 | ||||||
| IPv6 hints | 2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com | ||||||
| SOA | dean.ns.cloudflare.comdns@cloudflare.com serial=2396773957 | ||||||
nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | catcher-in-the-rye.nic.nu ⭐ | ||||||
| NS | a.ns.nu | ||||||
| NS | c.ns.nu | ||||||
| NS | d.ns.nu | ||||||
| NS | m.ns.nu | ||||||
| NS | y.ns.nu | ||||||
| NS | z.ns.nu | ||||||
| TXT | id:1612c7e7-b7be-4959-8b8e-fb224a58eac0 | ||||||
| TXT | NU zone update: 2026-04-09 20:03:52 +0000 (EPOCH 1775765032) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1775765090 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSdean.ns.cloudflare.com2026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
●NShope.ns.cloudflare.com2026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
●A104.21.25.542026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
●A172.67.222.2472026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
●A2606:4700:3033::6815:19362026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
●A2606:4700:3036::ac43:def72026-04-02 → 2026-04-09 · 2 obs
● 2026-04-09 20:37:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | a.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu... | 12 records |
| duel.nu | hope.ns.cloudflare.com, dean.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.153
NS records: hope.ns.cloudflare.com, dean.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duel.nu (unsigned zone)
⏱️ Timing
Total: 816ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.25.54, 172.67.222.247 |
| AAAA | 2 | 2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7 |
| NS | 2 | dean.ns.cloudflare.com, hope.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dean.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.ns.nu, c.ns.nu, d.ns.nu...)
Analysis
IP Addresses
duel.nu refers to four IP numbers: 2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7, 104.21.25.54 and 172.67.222.247.
Other host names, for instance limitedless.exchange, mailserver.elbfireplaces.co.uk, 5isw.cn, nipette.com and www.i1768.cn share IP numbers with duel.nu.
Name Servers
duel.nu's delegation uses two name servers: dean.ns.cloudflare.com and hope.ns.cloudflare.com.
duel.nu uses the same name server setup as other domains, such as rlb.ro, cantercompanies.com, bitsighttech.com, reijo.org and requestcrack.com.
duel.nu at least partially shares name servers with other domains, including badak69vip.online, 0likenykd54.net, meubank.com, dwgill.com and woodstairco.com.
These name servers are often used with jessica.ns.cloudflare.com and ram.ns.cloudflare.com.
Host names with six IP numbers:
dean.ns.cloudflare.com points to 2606:4700:58::adf5:3b99, 2803:f800:50::6ca2:c199, 2a06:98c1:50::ac40:2199, 108.162.193.153, 172.64.33.153 and 173.245.59.153.
hope.ns.cloudflare.com points to 2606:4700:50::adf5:3aa3, 2803:f800:50::6ca2:c0a3, 2a06:98c1:50::ac40:20a3, 108.162.192.163, 172.64.32.163 and 173.245.58.163.