feldcode.cz - dns.ninja
feldcode.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.101.228.87🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean | ||||||
| PTR | alpha.feldcode.cz | ||||||
| NS | ns1.digitalocean.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| A | 172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| NS | ns2.digitalocean.com | ||||||
| A | 2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| A | 172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| NS | ns3.digitalocean.com | ||||||
| A | 2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| A | 172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| MX | mail.feldcode.cz ⭐ | ||||||
| A | 46.101.228.87🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean | ||||||
| PTR | alpha.feldcode.cz | ||||||
| TXT | v=spf1 +a +mx +a:alpha.feldcode.cz +a:feldstein.cz -all | ||||||
| SOA | ns1.digitalocean.comhostmaster@feldcode.cz serial=0 | ||||||
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=1783734439 | ||||||
Subdomains
Same first word
feldcode.cz |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.digitalocean.com2026-02-16 → 2026-07-11 · 2 obs
● 2026-07-11 01:55:06
●NSns2.digitalocean.com2026-02-16 → 2026-07-11 · 2 obs
● 2026-07-11 01:55:06
●NSns3.digitalocean.com2026-02-16 → 2026-07-11 · 2 obs
● 2026-07-11 01:55:06
●MXmail.feldcode.cz2026-02-16 → 2026-07-11 · 2 obs
● 2026-07-11 01:55:06
●A46.101.228.872026-02-16 → 2026-07-11 · 2 obs
● 2026-07-11 01:55:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | - |
| feldcode.cz | ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.49.209
NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for feldcode.cz (unsigned zone)
⏱️ Timing
Total: 491ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.101.228.87 |
| NS | 3 | ns1.digitalocean.com, ns2.digitalocean.com... |
| MX | 1 | mail.feldcode.cz (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:alpha.feldcode.cz +a:fe |
| SOA | 1 | ns1.digitalocean.com hostmaster.feldcode |
Analysis
Hierarchy
The parent domain of mail.feldcode.cz and alpha.feldcode.cz is feldcode.cz.
IP Addresses
feldcode.cz directs to one IP number, which is 46.101.228.87.
Among the host names that share IP numbers with feldcode.cz are feldstein.eu, mail.feldstein.cz, mail.feldstein.eu and two others.
Name Servers
feldcode.cz is served by three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
At least some of feldcode.cz's name servers are shared with other domains, for example ashoka.se, cnc.wiki, 1.0.0.6.e.0.c.0.0.0.0.0.0.0.0.0.0.d.0.0.d.a.c.0.0.8.8.a.4.0.6.2.ip6.arpa and two more.
These name servers tend to be used in conjunction with the name servers ns4.digitalocean.com.
The hostnames ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com each direct to two IP addresses — ns1.digitalocean.com to 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com to 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com to 172.64.49.209 and 2606:4700:52::ac40:31d1.
Mail Servers
feldcode.cz routes its mail through a single mail server, mail.feldcode.cz.
mail.feldcode.cz resolves to 46.101.228.87 and no other IP number.