realpython.org - robtex.com
realpython.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=1791699985 | ||||||
Same first word
realpython.world |
realpython.net |
realpython.de |
realpython.com |
realpython.xyz |
realpython.com.cn |
realpython.workers.dev |
realpython.org |
realpython.ph |
Similar names
Previous names
Next names
DNS History
13 records (13 active, 0 former)
●NSns1.dnsimple-edge.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●NSns2.dnsimple-edge.net2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●NSns3.dnsimple-edge.io2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●NSns4.dnsimple-edge.org2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●MXalt1.aspmx.l.google.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●MXalt2.aspmx.l.google.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●MXalt3.aspmx.l.google.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●MXalt4.aspmx.l.google.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●MXaspmx.l.google.com2026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●A13.248.144.1052026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●A13.248.241.1192026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●A3.33.148.612026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
●A35.71.131.462026-09-14 → 2026-10-11 · 2 obs
● 2026-10-11 07:06:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| realpython.org | ns4.dnsimple-edge.org, ns2.dnsimple-edge.net, ns1.dnsimple-edge.com, ns3.dnsimple-edge.io | 2 records |
✅ Authoritative Response
Server:199.247.155.53
NS records: ns4.dnsimple-edge.org, ns2.dnsimple-edge.net, ns1.dnsimple-edge.com, ns3.dnsimple-edge.io
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for realpython.org (unsigned zone)
⏱️ Timing
Total: 645ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 3.33.148.61, 13.248.144.105... |
| NS | 4 | ns1.dnsimple-edge.com, ns2.dnsimple-edge.net... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 3 | google-site-verification=6Mv3VZrFaUbH3Lk, google-site-verification=eog4DeoHnYjd6zi... |
| SOA | 1 | ns1.dnsimple-edge.com admin.dnsimple.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns4.dnsimple-edge.org, ns4.dnsimple-edge.org)
Analysis
IP Addresses
realpython.org directs to four IP numbers, which are 3.33.148.61, 13.248.144.105, 13.248.241.119 and 35.71.131.46.
Among the host names that share IP numbers with realpython.org are bonsai.sensu.io, trulicitypatient.se, nameless-whippet-t4zg4al98jqvhka7a04sl4ko.herokudns.com and two others.
Name Servers
The domain realpython.org is delegated to these four name servers: ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org.
There is at least partial name server overlap between realpython.org and other domains — gcnsolutions.com, coberturasdebaja.com, webinarsuccess.info and two more among them.
These name servers frequently co-occur with the name servers ns1.dnsimple.com and ns3.dnsimple.com.
All four hostnames — ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org — resolve to two IP numbers apiece: ns1.dnsimple-edge.com to 199.247.152.53 and 2620:111:8004::53; ns3.dnsimple-edge.io to 199.247.154.53 and 2620:111:8006::53; ns2.dnsimple-edge.net to 199.247.153.53 and 2620:111:8005::53; ns4.dnsimple-edge.org to 199.247.155.53 and 2620:111:8007::53.
Mail Servers
Five mail servers handle realpython.org: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
realpython.org shares at least some of its mail servers with other domains — for example sendfyle.com, treadlifestyle.com, highcottongeckos.com and two more.
It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.
Hosts with two IP numbers each:
aspmx.l.google.com resolves to two addresses: 142.251.179.26 and 2607:f8b0:4004:c29::1a.
alt1.aspmx.l.google.com resolves to two addresses: 192.178.234.27 and 2800:3f0:4003:c14::1a.
alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.