practicaltheory.org - dns.ninja
practicaltheory.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786107879 | ||||||
rank #73550 in the tld
WOT: SAFE (73/100)
Same first word
practicaltheory.com |
practicaltheory.org |
DNS History
9 records (8 active, 1 former)
●NSns01.domaincontrol.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●NSns02.domaincontrol.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●MXalt1.aspmx.l.google.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●MXalt2.aspmx.l.google.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●MXaspmx.l.google.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●MXaspmx2.googlemail.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●MXaspmx3.googlemail.com2015-08-05 → 2026-08-07 · 2 obs
● 2026-08-07 13:23:36
●A132.148.218.1112026-03-15 → 2026-08-07 · 3 obs
● 2026-03-15 23:19:28
● 2026-08-07 13:23:36
○A68.178.254.32015-08-05 → 2017-05-17 · 4 obs
● 2017-05-17 11:57:24
○ 2026-03-15 23:19:28
○ 2026-08-07 13:23:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| practicaltheory.org | ns02.domaincontrol.com, ns01.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.68.1
NS records: ns02.domaincontrol.com, ns01.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for practicaltheory.org (unsigned zone)
⏱️ Timing
Total: 452ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 132.148.218.111 |
| NS | 2 | ns01.domaincontrol.com, ns02.domaincontrol.com |
| MX | 5 | alt1.aspmx.l.google.com (pri: 20), alt2.aspmx.l.google.com (pri: 30)... |
| TXT | 3 | google-site-verification=9nHU5VTl5O2zvbL, google-site-verification=_VlCmxM1LCBmkIc... |
| SOA | 1 | ns01.domaincontrol.com dns.jomax.net |
Analysis
IP Addresses
practicaltheory.org points to a single IP number: 132.148.218.111.
Other host names share IP numbers with practicaltheory.org; 111.218.148.132.host.secureserver.net is one such example.
Name Servers
practicaltheory.org is served by two delegated name servers, ns01.domaincontrol.com and ns02.domaincontrol.com.
practicaltheory.org shares its name server setup with other domains, including t-racy.com, brodus.org, talentred.com and two others.
The DNS delegation for practicaltheory.org at least partly coincides with that of other domains, hunani.com being one example.
Each of the two host names carries two IP addresses: ns01.domaincontrol.com points to 97.74.100.1 and 2603:5:2140::1, and ns02.domaincontrol.com points to 173.201.68.1 and 2603:5:2240::1.
Mail Servers
practicaltheory.org has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
practicaltheory.org shares mail servers — at least in part — with other domains, including hcn.com.tw, klmjeng.com, mystylerules.com and two others.
These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.
Host names with two IP numbers:
aspmx2.googlemail.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx.l.google.com maps to two IP addresses — 142.251.167.27 and 2607:f8b0:4004:c29::1b.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.
These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 172.253.116.26 IP addresses.