email.postmaster.hackerrank.com - dns.ninja
email.postmaster.hackerrank.com
postmaster.hackerrank.com
| DNSSEC | ⚠️ Not signed | ||||||
| MX | mxa.mailgun.org ⭐ | ||||||
| MX | mxb.mailgun.org ⭐ | ||||||
| TXT | v=spf1 include:mailgun.org ~all | ||||||
WOT: SAFE (91/100)
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net... | - |
| hackerrank.com | ns-525.awsdns-01.net, ns-431.awsdns-53.com, ns-1691.awsdns-19.co.uk, ns-1314.awsdns-36.org | 2 records |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
| hackerrank.com | ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net | - |
✅ Authoritative Response
Server:205.251.198.155
NS records: ns-1314.awsdns-36.org, ns-1691.awsdns-19.co.uk, ns-431.awsdns-53.com, ns-525.awsdns-01.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 883ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | mailgun.org |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-431.awsdns-53.com, ns-431.awsdns-53.com)
Analysis
IP Addresses
email.postmaster.hackerrank.com directs to one IP number, which is 34.102.239.211.
Among the host names that share IP numbers with email.postmaster.hackerrank.com are authsmtp.mailgun.org, zzoulax-zzenix-jinx777.zzoulax-zzenix-jinx777.origin-field-vector.125webdesign.com.mailgun.org, sandbox0c647c728813455aa82f81047e0a85f1.mailgun.org and two others.
Name Servers
The domain email.postmaster.hackerrank.com is delegated to these four name servers: ns-133.awsdns-16.com, ns-586.awsdns-09.net, ns-1482.awsdns-57.org and ns-1614.awsdns-09.co.uk.
email.postmaster.hackerrank.com partially shares its NS delegation with several other domains, including tondesaitama-game.net, por-tech.com, signagelive.co.uk and two others.
ns-133.awsdns-16.com, ns-586.awsdns-09.net, ns-1482.awsdns-57.org and ns-1614.awsdns-09.co.uk each carry two IP addresses. ns-133.awsdns-16.com has 205.251.192.133 and 2600:9000:5300:8500::1; ns-586.awsdns-09.net has 205.251.194.74 and 2600:9000:5302:4a00::1; ns-1482.awsdns-57.org has 205.251.197.202 and 2600:9000:5305:ca00::1; ns-1614.awsdns-09.co.uk has 205.251.198.78 and 2600:9000:5306:4e00::1.
Mail Servers
The MX records for email.postmaster.hackerrank.com point to two mail servers: mxa.mailgun.org and mxb.mailgun.org.
email.postmaster.hackerrank.com has the same mail server arrangement as a number of other domains, for example mycits.cn, allianzexclusive.com.my, adamelmansouri.com and two more.
email.postmaster.hackerrank.com shares at least some of its mail servers with other domains — for example smartphoneshop.co.za, simon.org.np, greencardorganization.com and two more.
It is common to find these mail servers paired with the mail servers aspmx.l.google.com.
Each of mxa.mailgun.org and mxb.mailgun.org points to exactly one IP address: 34.36.182.139.
mxa.mailgun.org and mxb.mailgun.org each have 34.36.182.139 IP addresses.