ruby-tutorials.org - dns.ninja

`ruby-tutorials.org`

DNSSEC	⚠️ Not signed
A	3.131.150.69^{🇺🇸 Amazon3.131.0.0/16 EC2 CMH prefix}
		PTR	`ec2-3-131-150-69.us-east-2.compute.amazonaws.com`
NS	`ns1.dnsimple.com` ⭐
		A	2620:111:8004::53^{🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation}
		A	199.247.152.53^{🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation}
NS	`ns2.dnsimple.com`
		A	2620:111:8005::53^{🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route}
		A	199.247.153.53^{🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route}
NS	`ns3.dnsimple.com`
		A	2620:111:8006::53^{🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation}
		A	199.247.154.53^{🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation}
NS	`ns4.dnsimple-edge.org`
		A	2620:111:8007::53^{🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route}
		A	199.247.155.53^{🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route}
NS	`ns4.dnsimple.com` ⚠️ Not in zone NS records
		A	2620:111:8007::53^{🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route}
		A	199.247.155.53^{🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route}
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
SOA	`ns1.dnsimple.com`admin@dnsimple.com serial=1672981549

`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.info`hostmaster@donuts.email serial=1782690237

Same first word

ruby-tutorials.org

DNS History

11 records (8 active, 3 former)

●NSns1.dnsimple.com2026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

●NSns2.dnsimple.com2026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

●NSns3.dnsimple.com2026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

○NSns33.domaincontrol.com2015-05-17 → 2017-12-25 · 4 obs

● 2015-05-17 07:07:42
● 2017-12-25 01:07:46
○ 2026-02-27 19:47:28
○ 2026-06-29 00:04:42

○NSns34.domaincontrol.com2015-05-17 → 2017-12-25 · 4 obs

● 2015-05-17 07:07:42
● 2017-12-25 01:07:46
○ 2026-02-27 19:47:28
○ 2026-06-29 00:04:42

●NSns4.dnsimple-edge.org2026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

●NSns4.dnsimple.com2026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

●MXmailstore1.secureserver.net2015-05-17 → 2026-06-29 · 2 obs

● 2015-05-17 07:07:42
● 2026-06-29 00:04:42

●MXsmtp.secureserver.net2015-05-17 → 2026-06-29 · 2 obs

● 2015-05-17 07:07:42
● 2026-06-29 00:04:42

○A184.168.221.582015-05-17 → 2017-12-25 · 4 obs

● 2015-05-17 07:07:42
● 2017-12-25 01:07:46
○ 2026-02-27 19:47:28
○ 2026-06-29 00:04:42

●A3.131.150.692026-02-27 → 2026-06-29 · 3 obs

○ 2017-12-25 01:07:46
● 2026-02-27 19:47:28
● 2026-06-29 00:04:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
ruby-tutorials.org	ns2.dnsimple.com, ns1.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com...	2 records

✅ Authoritative Response

Server:199.247.152.53

NS records: ns2.dnsimple.com, ns1.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns4.dnsimple-edge.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ruby-tutorials.org (unsigned zone)

⏱️ Timing

Total: 549ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`3.131.150.69`
NS	4	`ns1.dnsimple.com, ns2.dnsimple.com...`
MX	2	`smtp.secureserver.net (pri: 0), mailstore1.secureserver.net (pri: 10)`
SOA	1	`ns1.dnsimple.com admin.dnsimple.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns4.dnsimple-edge.org, ns4.dnsimple-edge.org)

Analysis

IP Addresses

ruby-tutorials.org resolves to one IP address: 3.131.150.69.

terramartinez.com, limelightdigital.com, thewrestlingpost.com and two other host names share IP numbers with ruby-tutorials.org.

Name Servers

ruby-tutorials.org has five name servers, which are ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and two others.

ruby-tutorials.org partially shares its NS delegation with several other domains, including fivegreenapples.ca, firstaffiliatebootcamp.com, movableinc.com and two others.

It is common to find these name servers alongside the name servers ns4.dnsimple.com, ns4.dnsimple-edge.org, ns2.dnsimple-edge.net and two others.

Hostnames that resolve to two IP addresses:

ns1.dnsimple.com directs traffic to 199.247.152.53 and 2620:111:8004::53.

ns2.dnsimple.com directs traffic to 199.247.153.53 and 2620:111:8005::53.

ns3.dnsimple.com directs traffic to 199.247.154.53 and 2620:111:8006::53.

ns4.dnsimple.com directs traffic to 199.247.155.53 and 2620:111:8007::53.

ns4.dnsimple-edge.org directs traffic to 199.247.155.53 and 2620:111:8007::53.

Both ns4.dnsimple.com and ns4.dnsimple-edge.org resolve to 2620:111:8007::53 IP addresses each.

Both ns4.dnsimple.com and ns4.dnsimple-edge.org resolve to 199.247.155.53 IP addresses each.

Mail Servers

Mail for ruby-tutorials.org is handled by two mail servers — mailstore1.secureserver.net and smtp.secureserver.net.

ruby-tutorials.org uses an identical mail server configuration to several other domains — among them korrin.net, eq-cap.info, babies2tots.com and two more.

At least some of ruby-tutorials.org's mail servers are shared with other domains, among them genevamarina.com, gladv.org and senyartourism.com.

mailstore1.secureserver.net has three IP addresses (216.69.141.78, 216.69.141.114 and 216.69.141.162) and smtp.secureserver.net has three IP addresses (216.69.141.71, 216.69.141.84 and 216.69.141.113).