sers.dev - dns.ninja
sers.dev
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.your-server.de ⭐ | ||||||
| A | 2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.your-server.de | ||||||
| A | 213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | ns1.your-server.de | ||||||
| NS | ns.second-ns.com | ||||||
| A | 2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns.second-ns.com | ||||||
| A | 213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns.second-ns.com | ||||||
| NS | ns3.second-ns.de | ||||||
| A | 2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | ns3.second-ns.de | ||||||
| A | 193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | ns3.second-ns.de | ||||||
| MX | mail.sers.dev ⭐ | ||||||
| A | 78.47.25.243🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5 | ||||||
| PTR | mail.sers.dev | ||||||
| A | 78.47.42.31🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5 | ||||||
| PTR | mail.sers.dev | ||||||
| TXT | v=spf1 a:mail.sers.dev ?all | ||||||
| SOA | ns1.your-server.depostmaster@your-server.de 2026-01-14 #0 | ||||||
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
Subdomains
mail.sers.dev |
Same first word
Similar names
Previous names
Next names
sersesh.dev |
sershon.dev |
sersi.dev |
sert.dev |
sertan.dev |
sertecpet.dev |
sertex.dev |
sertilogix.dev |
serto.dev |
sertone.dev |
sertxu.dev |
seru-lte4d.dev |
seru.dev |
serunway.dev |
serv-node.dev |
serv.dev |
serv1.dev |
serva.dev |
DNS History
4 records (4 active, 0 former)
●NSns.second-ns.com2026-08-28 → 2026-09-02 · 2 obs
● 2026-09-02 20:40:08
●NSns1.your-server.de2026-08-28 → 2026-09-02 · 2 obs
● 2026-09-02 20:40:08
●NSns3.second-ns.de2026-08-28 → 2026-09-02 · 2 obs
● 2026-09-02 20:40:08
●MXmail.sers.dev2026-08-28 → 2026-09-02 · 2 obs
● 2026-09-02 20:40:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| sers.dev | ns1.your-server.de, ns3.second-ns.de, ns.second-ns.com | - |
✅ Authoritative Response
Server:213.133.100.102
NS records: ns1.your-server.de, ns3.second-ns.de, ns.second-ns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at dev: Error: DNS query timeout: 216.239.32.105 for DNSKEY dev
⏱️ Timing
Total: 4499ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.your-server.de, ns3.second-ns.de... |
| MX | 1 | mail.sers.dev (pri: 100) |
| TXT | 1 | v=spf1 a:mail.sers.dev ?all |
| SOA | 1 | ns1.your-server.de postmaster.your-serve |
Analysis
Hierarchy
sers.dev is the parent zone for mail.sers.dev.
Name Servers
Three name servers are authoritative for sers.dev: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.
sers.dev partially shares its NS delegation with several other domains, including it-stuffer.com, erp777.de, klauschke.de and two others.
These name servers often co-occur with the name servers hydrogen.ns.hetzner.com.
ns.second-ns.com resolves to 213.239.204.242 and 2a01:4f8:0:a101::b:1. ns3.second-ns.de resolves to 193.47.99.4 and 2001:67c:192c::add:b3. ns1.your-server.de resolves to 213.133.100.102 and 2a01:4f8:0:1::5ddc:1. All three hostnames point to two IP numbers each.
Mail Servers
Mail for sers.dev is handled by a single mail server, mail.sers.dev.
The mail server configuration of sers.dev is identical to that of other domains — sersjobs.com being one example.
The host mail.sers.dev resolves to 78.47.25.243 and 78.47.42.31 — two IP addresses.