readingfirst.com - dns.ninja

`readingfirst.com`

DNSSEC	⚠️ Not signed
A	3.33.251.168^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`aec037177372cc6cd.awsglobalaccelerator.com`
A	15.197.225.128^{🇺🇸 Amazon15.197.224.0/20}
NS	`ns43.domaincontrol.com` ⭐
		A	2603:5:2152::16^{🇺🇸 GODADDY-DNS2603:5:2150::/44}
			PTR	`ns43.domaincontrol.com`
		A	97.74.101.22^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns43.domaincontrol.com`
NS	`ns44.domaincontrol.com`
		A	2603:5:2252::16^{🇺🇸 GODADDY-DNS2603:5:2250::/44}
			PTR	`ns44.domaincontrol.com`
		A	173.201.69.22^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns44.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
SOA	`ns43.domaincontrol.com`dns@jomax.net 2026-04-01 #3

`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.net`nstld@verisign-grs.com serial=1781829360

Same first word

readingfirst.com

Similar names

DNS History

16 records (6 active, 10 former)

○NSdns1.name-services.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

○NSdns2.name-services.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

○NSdns3.name-services.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

○NSdns4.name-services.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

○NSdns5.name-services.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

●NSns43.domaincontrol.com2016-07-22 → 2026-06-19 · 3 obs

○ 2016-03-27 13:21:16
● 2016-07-22 03:38:18
● 2026-06-19 01:03:20

●NSns44.domaincontrol.com2016-07-22 → 2026-06-19 · 3 obs

○ 2016-03-27 13:21:16
● 2016-07-22 03:38:18
● 2026-06-19 01:03:20

●MXmailstore1.secureserver.net2016-07-22 → 2026-06-19 · 3 obs

○ 2016-03-27 13:21:16
● 2016-07-22 03:38:18
● 2026-06-19 01:03:20

○MXp.nsm.ctmail.com2015-06-08 → 2016-03-27 · 4 obs

● 2015-06-08 01:23:44
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

●MXsmtp.secureserver.net2016-07-22 → 2026-06-19 · 3 obs

○ 2016-03-27 13:21:16
● 2016-07-22 03:38:18
● 2026-06-19 01:03:20

●A15.197.225.1282026-03-10 → 2026-06-19 · 3 obs

○ 2020-04-10 06:05:42
● 2026-03-10 19:40:48
● 2026-06-19 01:03:20

○A184.168.221.32020-04-10 → 2020-04-10 · 4 obs

○ 2017-04-02 05:48:10
● 2020-04-10 06:05:42
○ 2026-03-10 19:40:48
○ 2026-06-19 01:03:20

○A184.168.221.52016-07-22 → 2017-04-02 · 5 obs

○ 2016-03-27 13:21:16
● 2016-07-22 03:38:18
● 2017-04-02 05:48:10
○ 2020-04-10 06:05:42
○ 2026-06-19 01:03:20

●A3.33.251.1682026-03-10 → 2026-06-19 · 3 obs

○ 2020-04-10 06:05:42
● 2026-03-10 19:40:48
● 2026-06-19 01:03:20

○A8.5.1.152015-06-08 → 2015-10-24 · 4 obs

● 2015-06-08 01:23:44
● 2015-10-24 11:27:32
○ 2015-12-28 14:05:00
○ 2026-06-19 01:03:20

○A8.5.1.392015-12-28 → 2016-03-27 · 5 obs

○ 2015-10-24 11:27:32
● 2015-12-28 14:05:00
● 2016-03-27 13:21:16
○ 2016-07-22 03:38:18
○ 2026-06-19 01:03:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
readingfirst.com	ns43.domaincontrol.com, ns44.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.69.22

NS records: ns43.domaincontrol.com, ns44.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readingfirst.com (unsigned zone)

⏱️ Timing

Total: 113ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.225.128, 3.33.251.168`
NS	2	`ns43.domaincontrol.com, ns44.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
SOA	1	`ns43.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns43.domaincontrol.com, ns43.domaincontrol.com, ns44.domaincontrol.com...)

Analysis

IP Addresses

readingfirst.com has two IP addresses: 3.33.251.168 and 15.197.225.128

Among the host names that share IP numbers with readingfirst.com are fatbikestuff.com, indybenchbar.org, weserve.mobi and two others.

Name Servers

Two name servers handle the delegation for readingfirst.com: ns43.domaincontrol.com and ns44.domaincontrol.com.

readingfirst.com has the same name server delegation as a number of other domains, such as zennj.mobi, marinweb.com, panchaloha.com and two more.

ns43.domaincontrol.com and ns44.domaincontrol.com both carry two IP addresses. The A records for ns43.domaincontrol.com are 97.74.101.22 and 2603:5:2152::16; the A records for ns44.domaincontrol.com are 173.201.69.22 and 2603:5:2252::16.

Mail Servers

The MX records for readingfirst.com point to two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.

readingfirst.com has the same mail server arrangement as a number of other domains, for example kwconnect.net, nerdusa.com, electrictattooparlor.com and two more.

The hosts mailstore1.secureserver.net and smtp.secureserver.net both resolve to three IP numbers: mailstore1.secureserver.net to 216.69.141.78, 216.69.141.114 and 216.69.141.162, and smtp.secureserver.net to 216.69.141.71, 216.69.141.84 and 216.69.141.113.