rsdev.io - dns.ninja
rsdev.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=1785582207 | ||||||
Subdomains
test.rsdev.io |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-1455.awsdns-53.org2026-03-09 → 2026-08-01 · 2 obs
● 2026-08-01 12:00:32
●NSns-1837.awsdns-37.co.uk2026-03-09 → 2026-08-01 · 2 obs
● 2026-08-01 12:00:32
●NSns-490.awsdns-61.com2026-03-09 → 2026-08-01 · 2 obs
● 2026-08-01 12:00:32
●NSns-953.awsdns-55.net2026-03-09 → 2026-08-01 · 2 obs
● 2026-08-01 12:00:32
●MXinbound-smtp.us-east-1.amazonaws.com2026-03-09 → 2026-08-01 · 2 obs
● 2026-08-01 12:00:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, a2.nic.io, a0.nic.io, c0.nic.io | - |
| rsdev.io | ns-490.awsdns-61.com, ns-1837.awsdns-37.co.uk, ns-1455.awsdns-53.org, ns-953.awsdns-55.net | - |
✅ Authoritative Response
Server:205.251.197.175
NS records: ns-490.awsdns-61.com, ns-1837.awsdns-37.co.uk, ns-1455.awsdns-53.org, ns-953.awsdns-55.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rsdev.io (unsigned zone)
⏱️ Timing
Total: 458ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1455.awsdns-53.org, ns-1837.awsdns-37.co.uk... |
| MX | 1 | inbound-smtp.us-east-1.amazonaws.com (pr |
| TXT | 1 | v=spf1 include:amazonses.com ~all |
| SOA | 1 | ns-1455.awsdns-53.org awsdns-hostmaster. |
Analysis
Hierarchy
test.rsdev.io is delegated beneath rsdev.io.
Name Servers
rsdev.io has four authoritative name servers: ns-490.awsdns-61.com, ns-953.awsdns-55.net, ns-1455.awsdns-53.org and ns-1837.awsdns-37.co.uk.
There is at least partial name server overlap between rsdev.io and other domains — sectorfold.com, artsofthome.eu, gatitaslimacentro.com and two more among them.
All four hostnames — ns-490.awsdns-61.com, ns-953.awsdns-55.net, ns-1455.awsdns-53.org and ns-1837.awsdns-37.co.uk — resolve to two IP numbers apiece: ns-490.awsdns-61.com to 205.251.193.234 and 2600:9000:5301:ea00::1; ns-953.awsdns-55.net to 205.251.195.185 and 2600:9000:5303:b900::1; ns-1455.awsdns-53.org to 205.251.197.175 and 2600:9000:5305:af00::1; ns-1837.awsdns-37.co.uk to 205.251.199.45 and 2600:9000:5307:2d00::1.
Mail Servers
rsdev.io has one mail server: inbound-smtp.us-east-1.amazonaws.com.
rsdev.io shares the same mail server setup as other domains, including bearatlantic.awsapps.com, derbypsychology.slack.com, deftones.com and two others.
rsdev.io shares mail servers — at least in part — with other domains, including novetta.atlassian.net, emeraldar.atlassian.net, awesome-server.com and two others.
These mail servers are frequently seen alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.
inbound-smtp.us-east-1.amazonaws.com points to five IP addresses: 3.211.210.226, 44.206.9.87, 44.210.166.32 and two more.