sperrstunde.org - robtex.com
sperrstunde.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.13.164.138🇺🇸 AS16652204.13.164.0/24 AHS | ||||||
| PTR | duck.nadir.org | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| MX | mail.sperrstunde.org ⭐ | ||||||
| A | 217.114.68.218🇩🇪 NMMN-AS217.114.64.0/20 NMMN - New Media Markets & Networks | ||||||
| PTR | fry.nadir.org | ||||||
| TXT | v=spf1 ip4:217.114.68.218 ip4:204.13.164.138 a -all | ||||||
| TXT | google-site-verification=dZv_X9HOzS_nVh_MW-zk73SyWRBO4cqHWwezt9-Lf6Q | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-04-14 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1778462935 | ||||||
Subdomains
mail.sperrstunde.org |
Same first word
sperrstunde.org |
sperrstunde.at |
DNS History
5 records (5 active, 0 former)
●NShelium.ns.hetzner.de2026-04-20 → 2026-05-11 · 2 obs
● 2026-05-11 01:56:06
●NShydrogen.ns.hetzner.com2026-04-20 → 2026-05-11 · 2 obs
● 2026-05-11 01:56:06
●NSoxygen.ns.hetzner.com2026-04-20 → 2026-05-11 · 2 obs
● 2026-05-11 01:56:06
●MXmail.sperrstunde.org2026-04-20 → 2026-05-11 · 2 obs
● 2026-05-11 01:56:06
●A204.13.164.1382026-04-20 → 2026-05-11 · 2 obs
● 2026-05-11 01:56:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| sperrstunde.org | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server:213.133.100.98
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sperrstunde.org (unsigned zone)
⏱️ Timing
Total: 1015ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.13.164.138 |
| NS | 3 | oxygen.ns.hetzner.com, helium.ns.hetzner.de... |
| MX | 1 | mail.sperrstunde.org (pri: 10) |
| TXT | 2 | v=spf1 ip4:217.114.68.218 ip4:204.13.164, google-site-verification=dZv_X9HOzS_nVh_ |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
Hierarchy
sperrstunde.org is the parent of mail.sperrstunde.org.
IP Addresses
sperrstunde.org resolves to a single IP address: 204.13.164.138.
Name Servers
sperrstunde.org is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
sperrstunde.org at least partially shares name servers with other domains, including theoclub.net, servicemesh.cloud, giochimmo.it, graafen.org and freeremoteserialports.com.
these name servers are commonly used together with ns1.first-ns.de, robotns2.second-ns.de and robotns3.second-ns.com.
Host names with two IP numbers:
hydrogen.ns.hetzner.com points to: 2a01:4f8:0:1::add:1098 and 213.133.100.98
oxygen.ns.hetzner.com points to: 2a01:4f8:0:1::add:2992 and 88.198.229.192
helium.ns.hetzner.de points to: 2001:67c:192c::add:5 and 193.47.99.5
Mail Servers
sperrstunde.org is handled by a single mail server, mail.sperrstunde.org.
mail.sperrstunde.org points to a single IP: 217.114.68.218.