md21.cz - robtex.com
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md21.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.175.85.22🇨🇿 Fortion | ||||||
| PTR | lb.antstudio.cz | ||||||
| NS | ns.fortion.cz ⭐ | ||||||
| A | 2a0b:df00:1:1044::7🇨🇿 Fortion | ||||||
| A | 185.175.87.7🇨🇿 Fortion | ||||||
| PTR | ns.fortion.cz | ||||||
| NS | ns.fortion.eu | ||||||
| A | 2a01:4f8:1c1a:47d1::1🇩🇪 Hetzner | ||||||
| PTR | ns.fortion.eu | ||||||
| A | 91.99.61.187🇩🇪 Hetzner | ||||||
| PTR | ns.fortion.eu | ||||||
| NS | ns.fortion.net | ||||||
| A | 2a00:fea0:dead::beef🇮🇳 GRANSY | ||||||
| A | 185.28.194.194🇨🇿 GRANSY | ||||||
| PTR | ns2.anycastdns.cz | ||||||
| MX | mx0.fortion.net ⭐ | ||||||
| A | 185.175.87.39🇨🇿 Fortion | ||||||
| MX | mx1.fortion.net(10) | ||||||
| A | 185.175.87.53🇨🇿 Fortion | ||||||
| MX | mx2.fortion.net(20) | ||||||
| A | 185.175.87.53🇨🇿 Fortion | ||||||
| TXT | v=spf1 include:_spf.fortion.net ~all | ||||||
| SOA | ns.fortion.czinfo@fortion.cz 2026-02-19 #1 | ||||||
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=1771291036 | ||||||
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSns.fortion.cz2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●NSns.fortion.eu2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●NSns.fortion.net2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●MXmx0.fortion.net2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●MXmx1.fortion.net2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●MXmx2.fortion.net2026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
●A185.175.85.222026-02-19 → 2026-02-19 · 2 obs
● 2026-02-19 01:15:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| md21.cz | ns.fortion.cz, ns.fortion.eu, ns.fortion.net | - |
✅ Authoritative Response
Server: 185.175.87.7
NS records: ns.fortion.cz, ns.fortion.eu, ns.fortion.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for md21.cz (unsigned zone)
⏱️ Timing
Total: 422ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.175.85.22 |
| NS | 3 | ns.fortion.cz, ns.fortion.eu... |
| MX | 3 | mx0.fortion.net (pri: 5), mx1.fortion.net (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.fortion.net ~all |
| SOA | 1 | ns.fortion.cz info.fortion.cz |
AI analysis
md21.cz resolves to a single IP: 185.175.85.22.
Other host names, for instance kotlin.cz, algon.cz, cpcd.cz, langdisky.cz and 3mb.cz share IP numbers with md21.cz.
md21.cz delegates to three name servers: ns.fortion.cz, ns.fortion.eu and ns.fortion.net.
md21.cz shares some name servers with other domains, for example prazsky.cz, cenasiemens.cz, tlumoceni-preklady.cz, kavovary-kava.cz and perfect10.cz.
These name servers are commonly used alongside ns2.coolhosting.cz, ns.coolhosting.cz, ns.kraxnet.com and ns.kraxnet.cz.
Host names with two IP numbers:
ns.fortion.cz: 2a0b:df00:1:1044::7 and 185.175.87.7
ns.fortion.eu: 2a01:4f8:1c1a:47d1::1 and 91.99.61.187
ns.fortion.net: 2a00:fea0:dead::beef and 185.28.194.194
md21.cz is handled by three mail servers: mx0.fortion.net, mx1.fortion.net and mx2.fortion.net.
md21.cz shares some mail servers with other domains, at least partially; for instance chimare.cz, fedia-print.cz, e-kovovynabytok.sk, cool-hosting.cz and kuracke-potreby.cz.
Host names with a single IP:
mx0.fortion.net resolves to 185.175.87.39
mx1.fortion.net resolves to 185.175.87.53
mx2.fortion.net resolves to 185.175.87.53
Host names that resolve to 185.175.87.53: mx1.fortion.net and mx2.fortion.net