🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`rubyrailstutorial.org`

DNSSEC	⚠️ Not signed
A	3.33.152.147^{🇺🇸 Amazon3.33.144.0/20}
		PTR	`a4ec4c6ea1c92e2e6.awsglobalaccelerator.com`
A	15.197.142.173^{🇺🇸 Amazon15.197.128.0/20}
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 GoDaddy.com, LLC}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22 GoDaddy.com, LLC}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22 GoDaddy.com, LLC}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22 GoDaddy.com, LLC}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22 GoDaddy.com, LLC}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22 GoDaddy.com, LLC}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
SOA	`ns1.dnsimple.com`admin@dnsimple.com serial=1672883274

`org`

	DNSSEC	⚠️ Not signed
	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=1791259156

Same first word

rubyrailstutorial.org

Previous names

Next names

DNS History

12 records (9 active, 3 former)

●NSns1.dnsimple.com2026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

●NSns2.dnsimple.com2026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

●NSns3.dnsimple.com2026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

○NSns33.domaincontrol.com2015-07-14 → 2017-04-10 · 4 obs

● 2015-07-14 23:07:40
● 2017-04-10 11:01:24
○ 2026-09-28 13:56:00
○ 2026-10-06 04:17:06

○NSns34.domaincontrol.com2015-07-14 → 2017-04-10 · 4 obs

● 2015-07-14 23:07:40
● 2017-04-10 11:01:24
○ 2026-09-28 13:56:00
○ 2026-10-06 04:17:06

●NSns4.dnsimple-edge.org2026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

●NSns4.dnsimple.com2026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

●MXmailstore1.secureserver.net2015-07-14 → 2026-10-06 · 2 obs

● 2015-07-14 23:07:40
● 2026-10-06 04:17:06

●MXsmtp.secureserver.net2015-07-14 → 2026-10-06 · 2 obs

● 2015-07-14 23:07:40
● 2026-10-06 04:17:06

●A15.197.142.1732026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

○A184.168.221.182015-07-14 → 2017-04-10 · 4 obs

● 2015-07-14 23:07:40
● 2017-04-10 11:01:24
○ 2026-09-28 13:56:00
○ 2026-10-06 04:17:06

●A3.33.152.1472026-09-28 → 2026-10-06 · 3 obs

○ 2017-04-10 11:01:24
● 2026-09-28 13:56:00
● 2026-10-06 04:17:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
rubyrailstutorial.org	ns2.dnsimple.com, ns4.dnsimple.com, ns4.dnsimple-edge.org, ns1.dnsimple.com...	2 records

✅ Authoritative Response

Server:199.247.155.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubyrailstutorial.org (unsigned zone)

⏱️ Timing

Total: 1500ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`3.33.152.147, 15.197.142.173`
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

rubyrailstutorial.org points to the IP addresses 3.33.152.147 and 15.197.142.173

tamsauto.com, morescorpions.com, collaboimages.com plus two other host names have IP numbers in common with rubyrailstutorial.org.

Name Servers

Five name servers handle delegation for rubyrailstutorial.org: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and two others.

There is at least partial name server overlap between rubyrailstutorial.org and other domains — coachjaysargeant.com, frb160102.net, synthesysbaseapp.com and two more among them.

These name servers regularly appear alongside ns4.dnsimple-edge.org, ns2.dnsimple-edge.net, ns4.dnsimple.com and 6 other name servers in NS record sets.

Host names pointing to two IP addresses:

ns1.dnsimple.com resolves to two addresses: 199.247.152.53 and 2620:111:8004::53.

ns2.dnsimple.com resolves to two addresses: 199.247.153.53 and 2620:111:8005::53.

ns3.dnsimple.com resolves to two addresses: 199.247.154.53 and 2620:111:8006::53.

ns4.dnsimple.com resolves to two addresses: 199.247.155.53 and 2620:111:8007::53.

ns4.dnsimple-edge.org resolves to two addresses: 199.247.155.53 and 2620:111:8007::53.

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

ns4.dnsimple.com along with ns4.dnsimple-edge.org each resolve to 199.247.155.53 IP addresses.

Mail Servers

rubyrailstutorial.org uses two mail servers, mailstore1.secureserver.net and smtp.secureserver.net.

The mail server setup of rubyrailstutorial.org matches that of other domains such as sewerliningchicago.com, travelersnewswatch.com, strathalyn.co.uk and two others.

rubyrailstutorial.org and other domains — gesund-und-lecker.net for instance — share at least some mail servers.

mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162. smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113. Both hosts resolve to three IP numbers.

rubyrailstutorial.org - robtex.com