postfix-tutorial.com - dns.ninja
postfix-tutorial.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 76.76.238.10🇺🇸 AS1213376.76.224.0/20 | ||||||
| PTR | ns1.opensourceserver.io | ||||||
| NS | ns1.opensourceserver.io ⭐ | ||||||
| A | 76.76.238.10🇺🇸 AS1213376.76.224.0/20 | ||||||
| PTR | ns1.opensourceserver.io | ||||||
| NS | ns2.opensourceserver.io | ||||||
| A | 207.177.51.156 | ||||||
| MX | mx.webmailblast.com ⭐ | ||||||
| A | 198.101.242.30 | ||||||
| TXT | v=spf1 mx a ip4:198.101.242.30/32 include:gmail.com ?all | ||||||
| TXT | 5affk76d9shvk1qcbujet4o9bp | ||||||
| SOA | ns1.opensourceserver.iohostmaster@embode.net 2023-08-29 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1789749038 | ||||||
Same first word
postfix-tutorial.com |
Previous names
Next names
DNS History
11 records (4 active, 7 former)
○NSns1.embode.net2015-06-30 → 2016-02-08 · 4 obs
● 2016-02-08 08:40:42
○ 2016-04-26 19:48:26
○ 2026-09-18 16:53:12
●NSns1.opensourceserver.io2026-09-08 → 2026-09-18 · 3 obs
● 2026-09-08 21:27:36
● 2026-09-18 16:53:12
●NSns2.opensourceserver.io2026-09-08 → 2026-09-18 · 3 obs
● 2026-09-08 21:27:36
● 2026-09-18 16:53:12
○NSns3.embode.net2015-06-30 → 2018-01-03 · 4 obs
● 2018-01-03 08:04:46
○ 2026-09-08 21:27:36
○ 2026-09-18 16:53:12
○NSns4.embode.net2016-04-26 → 2018-01-03 · 5 obs
● 2016-04-26 19:48:26
● 2018-01-03 08:04:46
○ 2026-09-08 21:27:36
○ 2026-09-18 16:53:12
○MXmail.postfix-tutorial.com2015-06-30 → 2016-02-08 · 4 obs
● 2016-02-08 08:40:42
○ 2016-04-26 19:48:26
○ 2026-09-18 16:53:12
●MXmx.webmailblast.com2016-04-26 → 2026-09-18 · 3 obs
● 2016-04-26 19:48:26
● 2026-09-18 16:53:12
○MXsmtp.postfix-tutorial.com2015-06-30 → 2016-02-08 · 4 obs
● 2016-02-08 08:40:42
○ 2016-04-26 19:48:26
○ 2026-09-18 16:53:12
○A162.209.7.1572015-06-30 → 2016-04-26 · 4 obs
● 2016-04-26 19:48:26
○ 2017-01-10 07:45:28
○ 2026-09-18 16:53:12
○A192.237.207.132017-01-10 → 2018-01-03 · 5 obs
● 2017-01-10 07:45:28
● 2018-01-03 08:04:46
○ 2026-09-08 21:27:36
○ 2026-09-18 16:53:12
●A76.76.238.102026-09-08 → 2026-09-18 · 3 obs
● 2026-09-08 21:27:36
● 2026-09-18 16:53:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| postfix-tutorial.com | ns1.opensourceserver.io, ns2.opensourceserver.io | - |
✅ Authoritative Response
Server:76.76.238.10
NS records: ns1.opensourceserver.io, ns2.opensourceserver.io
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1012ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.238.10 |
| NS | 2 | ns1.opensourceserver.io, ns2.opensourceserver.io |
| MX | 1 | mx.webmailblast.com (pri: 10) |
| TXT | 2 | v=spf1 mx a ip4:198.101.242.30/32 includ, 5affk76d9shvk1qcbujet4o9bp |
| SOA | 1 | ns1.opensourceserver.io hostmaster.embod |
Analysis
IP Addresses
postfix-tutorial.com has exactly one IP address — 76.76.238.10.
embode.de, leapbank.com, websugarmomma.com plus two other host names have IP numbers in common with postfix-tutorial.com.
Name Servers
postfix-tutorial.com has two authoritative name servers — ns1.opensourceserver.io and ns2.opensourceserver.io.
The name server configuration of postfix-tutorial.com is shared with other domains, for instance radio-creative.us, audio-mercials.com, hollyalexandria.com and two others.
postfix-tutorial.com has at least partial name server overlap with other domains, such as zadious.com, leaptrust.net, email-geni.us and two others.
It is common to find these name servers paired with the name servers ns3.opensourceserver.io.
ns1.opensourceserver.io directs to 76.76.238.10 and ns2.opensourceserver.io directs to 207.177.51.156; each host name points to exactly one IP number.
Mail Servers
postfix-tutorial.com uses one mail server — mx.webmailblast.com.
The mail server setup of postfix-tutorial.com matches that of other domains such as postfixtutorial.com, trendingdisruptions.com, rawnsleymckenny.com and two others.
At least some of the mail servers used by postfix-tutorial.com are shared with other domains: radio-creative.com, queencreekequineperformance.com, theflexiblevoice.com and two others among them.
mx.webmailblast.com points to one IP number — 198.101.242.30.