userstack.io - robtex.com
userstack.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=1788203270 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
8 records (8 active, 0 former)
●NSdns1.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●NSdns2.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●MXeforward1.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●MXeforward2.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●MXeforward3.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●MXeforward4.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●MXeforward5.registrar-servers.com2026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
●A192.64.119.792026-08-27 → 2026-08-31 · 2 obs
● 2026-08-31 20:06:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| userstack.io | dns1.registrar-servers.com, dns2.registrar-servers.com | - |
✅ Authoritative Response
Server:156.154.132.200
NS records: dns1.registrar-servers.com, dns2.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for userstack.io (unsigned zone)
⏱️ Timing
Total: 650ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.64.119.79 |
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 5 | eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10... |
| TXT | 1 | v=spf1 include:spf.efwd.registrar-server |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
Analysis
IP Addresses
userstack.io has exactly one IP address — 192.64.119.79.
aimodified.org, lftradesync.com, tanaforeverything.com plus two other host names have IP numbers in common with userstack.io.
Name Servers
userstack.io uses two name servers for its delegation: dns1.registrar-servers.com and dns2.registrar-servers.com.
The name server configuration of userstack.io is shared with other domains, for instance siimpl.io, mr-badger.co.uk, quirkybirthdaygifts.com and two others.
At least some of userstack.io's name servers are also used by other domains, among them bonasort.org.
The two host names dns1.registrar-servers.com and dns2.registrar-servers.com each have a pair of IP addresses: dns1.registrar-servers.com has 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com has 156.154.133.200 and 2610:a1:1025::200.
Mail Servers
Mail for userstack.io is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.
At least some of the mail servers used by userstack.io are shared with other domains: calmcapy.com, bulcorps.com, exertta.com and two others among them.
The mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com regularly co-occur with these mail servers.
Host names resolving to a single IP address:
eforward1.registrar-servers.com has the IP address 162.255.118.51.
eforward2.registrar-servers.com has the IP address 162.255.118.52.
eforward3.registrar-servers.com has the IP address 162.255.118.51.
eforward4.registrar-servers.com has the IP address 162.255.118.52.
eforward5.registrar-servers.com has the IP address 162.255.118.51.
Three host names point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.
Both eforward2.registrar-servers.com and eforward4.registrar-servers.com resolve to 162.255.118.52 IP addresses each.