secondnumber.io - robtex.com
secondnumber.io
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1786604221 | ||||||
Same first word
secondnumber.io |
Similar names
DNS History
5 records (5 active, 0 former)
●NShelium.ns.hetzner.de2026-05-12 → 2026-08-13 · 2 obs
● 2026-08-13 08:07:36
●NShydrogen.ns.hetzner.com2026-05-12 → 2026-08-13 · 2 obs
● 2026-08-13 08:07:36
●NSoxygen.ns.hetzner.com2026-05-12 → 2026-08-13 · 2 obs
● 2026-08-13 08:07:36
●MXsmtp.google.com2026-05-12 → 2026-08-13 · 2 obs
● 2026-08-13 08:07:36
●A135.181.85.2282026-05-12 → 2026-08-13 · 2 obs
● 2026-08-13 08:07:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, a2.nic.io, a0.nic.io, c0.nic.io | - |
| secondnumber.io | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server:88.198.229.192
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for secondnumber.io (unsigned zone)
⏱️ Timing
Total: 842ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 135.181.85.228 |
| NS | 3 | hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
IP Addresses
secondnumber.io resolves to one IP address: 135.181.85.228.
Name Servers
The authoritative name servers for secondnumber.io are hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de — three in total.
The name servers of secondnumber.io overlap at least partially with those of other domains — among them discordia.at, geosinteticos.com, haushaltsgeraeteshop.de and two more.
These name servers commonly appear in delegations together with ns1.first-ns.de, ns1.your-server.de, ns.second-ns.com and 3 other.
hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de all resolve to exactly two IP numbers apiece: hydrogen.ns.hetzner.com → 213.133.100.98 and 2a01:4f8:0:1::add:1098; oxygen.ns.hetzner.com → 88.198.229.192 and 2a01:4f8:0:1::add:2992; helium.ns.hetzner.de → 193.47.99.5 and 2001:67c:192c::add:5.
Mail Servers
Mail for secondnumber.io is handled by a single mail server, smtp.google.com.
secondnumber.io uses an identical mail server configuration to several other domains — among them tornet.ca, ccr11.com, thinkright.co.in and two more.
secondnumber.io has at least partial mail server overlap with other domains such as openborderworld.info, usen-almex.jp, workon.net and two more.
These mail servers commonly appear together with alt1.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two other mail servers.
smtp.google.com resolves to 9 IP addresses — 142.250.31.26, 142.251.16.26, 142.251.16.27 and 6 others.