ed448.cz - robtex.com
ed448.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:4f8:c0c:166e::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.ed448.cz | ||||||
| NS | ns.ed448.cz ⭐ | ||||||
| A | 2a01:4f8:c0c:166e::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.ed448.cz | ||||||
| A | 128.140.3.239🇩🇪 Hetzner128.140.0.0/17 HETZNER-DC | ||||||
| PTR | mail.ed448.cz | ||||||
| NS | ns.ed25519.cz | ||||||
| A | 2a02:c207:2325:2546::1🇩🇪 CONTABO2a02:c207::/32 | ||||||
| PTR | ns.ed25519.cz | ||||||
| A | 185.190.142.114🇩🇪 CONTABO185.190.142.0/23 | ||||||
| PTR | ns.ed25519.cz | ||||||
| MX | mail.ed448.cz ⭐ | ||||||
| A | 2a01:4f8:c0c:166e::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.ed448.cz | ||||||
| A | 128.140.3.239🇩🇪 Hetzner128.140.0.0/17 HETZNER-DC | ||||||
| PTR | mail.ed448.cz | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns.ed448.czhaly-tok-0v@icloud.com serial=1778495936 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1778532454 | ||||||
Subdomains
Same first word
DNS History
4 records (4 active, 0 former)
●NSns.ed25519.cz2026-03-21 → 2026-05-11 · 2 obs
● 2026-05-11 21:23:34
●NSns.ed448.cz2026-03-21 → 2026-05-11 · 2 obs
● 2026-05-11 21:23:34
●MXmail.ed448.cz2026-03-21 → 2026-05-11 · 2 obs
● 2026-05-11 21:23:34
●A2a01:4f8:c0c:166e::12026-03-21 → 2026-05-11 · 2 obs
● 2026-05-11 21:23:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| ed448.cz | ns.ed448.cz, ns.ed25519.cz | 4 records |
✅ Authoritative Response
Server:185.190.142.114
NS records: ns.ed448.cz, ns.ed25519.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 585ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| AAAA | 1 | 2a01:4f8:c0c:166e::1 |
| NS | 2 | ns.ed448.cz, ns.ed25519.cz |
| MX | 1 | mail.ed448.cz (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns.ed448.cz haly-tok-0v.icloud.com |
📌 Glue Records Collected
Total: 4
In-bailiwick: 2 (ns.ed448.cz, ns.ed448.cz)
Out-of-bailiwick: 2 (ns.ed25519.cz, ns.ed25519.cz)
Analysis
Hierarchy
ed448.cz is a parent of ns.ed448.cz and mail.ed448.cz.
IP Addresses
ed448.cz resolves to one IP number: 2a01:4f8:c0c:166e::1.
Other host names, for instance mail.ed448.cz, ed25519.cz and ns.ed448.cz share IP numbers with ed448.cz.
Name Servers
ed448.cz's delegation uses two name servers: ns.ed25519.cz and ns.ed448.cz.
ed448.cz shares the same name server setup as steinerovi.cz and ed25519.cz.
Host names with two IPs:
ns.ed25519.cz points to 2a02:c207:2325:2546::1 and 185.190.142.114
ns.ed448.cz points to 2a01:4f8:c0c:166e::1 and 128.140.3.239
Mail Servers
A single mail server handles ed448.cz, mail.ed448.cz.
ed448.cz uses the same mail server setup as other domains such as senamlibi.cz, steinerovi.cz and ed25519.cz.
The host name mail.ed448.cz resolves to two IP numbers: 2a01:4f8:c0c:166e::1 and 128.140.3.239.