mailback.io - robtex.com
mailback.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=1771291657 | ||||||
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●NSedns3.ultradns.biz2026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●NSedns3.ultradns.com2026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●NSedns3.ultradns.net2026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●NSedns3.ultradns.org2026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●A34.201.81.342026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●A54.208.186.1822026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●A54.224.34.302026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
●A54.243.129.2152026-03-02 → 2026-03-02 · 2 obs
● 2026-03-02 08:28:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, a2.nic.io, a0.nic.io, c0.nic.io | - |
| mailback.io | edns3.ultradns.biz, edns3.ultradns.net, edns3.ultradns.com, edns3.ultradns.org | - |
✅ Authoritative Response
Server: 204.74.111.3
NS records: edns3.ultradns.biz, edns3.ultradns.net, edns3.ultradns.com, edns3.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mailback.io (unsigned zone)
⏱️ Timing
Total: 576ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 54.208.186.182, 34.201.81.34... |
| NS | 4 | edns3.ultradns.biz, edns3.ultradns.com... |
| SOA | 1 | edns3.ultradns.com premiumdns.support.ne |
Analysis
IP Addresses
mailback.io resolves to four IPs: 34.201.81.34, 54.208.186.182, 54.224.34.30 and 54.243.129.215.
Other host names such as start2.herokuapp.com, flyshortcut.herokuapp.com, nmichalski.me, dry-dusk-4562.herokuapp.com and readsomegreek.com share IP numbers with mailback.io.
Name Servers
mailback.io is delegated to four name servers: edns3.ultradns.biz, edns3.ultradns.com, edns3.ultradns.net and edns3.ultradns.org.
At least part of the name servers for mailback.io are shared with other domains, for instance jtracker.co, richardsonbarr.com, revlone.com, manheimauctions.it and tipsinc.technology.
These name servers are commonly used together with the name servers ns7.ultradns2.com, ns7.ultradns2.org, ns52.ultradns2.com, ns52.ultradns2.org, ns17.ultradns2.com and ns17.ultradns2.org.
Host names with two IP numbers:
edns3.ultradns.biz points to: 2610:a1:1015::203 and 204.74.67.3
edns3.ultradns.com points to: 2001:502:f3ff::203 and 204.74.66.3
edns3.ultradns.net points to: 2610:a1:1014::203 and 204.74.110.3
edns3.ultradns.org points to: 2001:502:4612::203 and 204.74.111.3