doubtful.io - robtex.com
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doubtful.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=1770840708 | ||||||
Same first word
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| doubtful.io | ns-1248.awsdns-28.org, ns-1843.awsdns-38.co.uk, ns-874.awsdns-45.net, ns-274.awsdns-34.com | - |
✅ Authoritative Response
Server: 205.251.193.18
NS records: ns-1248.awsdns-28.org, ns-1843.awsdns-38.co.uk, ns-874.awsdns-45.net, ns-274.awsdns-34.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doubtful.io (unsigned zone)
⏱️ Timing
Total: 121ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 3.170.3.39, 3.170.3.69... |
| NS | 4 | ns-1248.awsdns-28.org, ns-1843.awsdns-38.co.uk... |
| MX | 2 | in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20) |
| SOA | 1 | ns-1843.awsdns-38.co.uk awsdns-hostmaste |
AI analysis
doubtful.io resolves to four IP numbers: 3.170.3.34, 3.170.3.39, 3.170.3.69 and 3.170.3.119.
Other host names such as touring.sk, eurolines.com, staging.blendedbit.com, kaeip.com and a.ajdesigner.com share IPs with doubtful.io.
doubtful.io is delegated to four name servers: ns-274.awsdns-34.com, ns-874.awsdns-45.net, ns-1248.awsdns-28.org and ns-1843.awsdns-38.co.uk.
doubtful.io at least partially shares name servers with other domains, for instance d3oyyqgrm2ogs3.cloudfront.net, omakase.net, altosoftwaretools.com, animepals.com and espnpass.com.sv.
These name servers are commonly used with ns-26.awsdns-03.com, ns-1090.awsdns-08.org, ns-1913.awsdns-47.co.uk, ns-335.awsdns-41.com, ns-1528.awsdns-63.org, ns-1674.awsdns-17.co.uk, ns-311.awsdns-38.com, ns-810.awsdns-37.net and ns-1816.awsdns-35.co.uk.
Host names with two IP numbers: ns-274.awsdns-34.com points to 2600:9000:5301:1200::1 and 205.251.193.18; ns-874.awsdns-45.net points to 2600:9000:5303:6a00::1 and 205.251.195.106; ns-1248.awsdns-28.org points to 2600:9000:5304:e000::1 and 205.251.196.224; ns-1843.awsdns-38.co.uk points to 2600:9000:5307:3300::1 and 205.251.199.51.
doubtful.io is handled by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.
The mail server setup for doubtful.io matches that of other domains, for instance magisterialmission.org, sik.tw, ambox.fr, eu.swiftirc.net and www.soliton.no.
doubtful.io shares some mail servers with other domains, at least partially, for example fry.jamesw.me, babblingengineer.com, belugadata.com and www.asenergyng.com.
Eight IP numbers per host name: in1-smtp.messagingengine.com points to 103.168.172.216, 103.168.172.217, 103.168.172.218, 103.168.172.219, 103.168.172.220, 103.168.172.221, 103.168.172.222 and 103.168.172.223.
Four IP numbers per host name: in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.