`manualofmastery.com`

DNSSEC	⚠️ Not signed
A	46.250.231.45^{🇬🇧 CONTABO-ASIA46.250.224.0/20}
		PTR	`vmi2411580.contaboserver.net`
NS	`ns1.a2hosting.com` ⭐
		A	13.248.158.180^{🇺🇸 Amazon13.248.144.0/20}
			PTR	`a79764cc55c0ac9c0.awsglobalaccelerator.com`
NS	`ns2.a2hosting.com`
		A	75.2.118.134^{🇺🇸 Amazon75.2.112.0/20}
			PTR	`abc65dd9a44b5332f.awsglobalaccelerator.com`
NS	`ns3.a2hosting.com`
		A	76.223.26.245^{🇺🇸 Amazon76.223.16.0/20}
			PTR	`a79764cc55c0ac9c0.awsglobalaccelerator.com`
NS	`ns4.a2hosting.com`
		A	99.83.147.209^{🇺🇸 Amazon99.83.144.0/20}
			PTR	`abc65dd9a44b5332f.awsglobalaccelerator.com`
MX	`mail.manualofmastery.com` ⭐
		A	66.198.240.48^{🇺🇸 vercara-udos66.198.240.0/24}
			PTR	`mi3-cl9-its2.a2hosting.com`
TXT	`v=spf1 +a +mx +ip4:66.198.240.48 ~all`
SOA	`ns1.a2hosting.com`root@mi3-cl9-its2.a2hosting.com 2025-02-18 #0

`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=1778856146

⚠️ On DNS blocklist: tif

Subdomains

mail.manualofmastery.com

Same first word

manualofmastery.com

DNS History

10 records (6 active, 4 former)

●NSns1.a2hosting.com2026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

○NSns15.ixwebhosting.com2015-06-27 → 2016-04-29 · 4 obs

● 2015-06-27 03:06:40
● 2016-04-29 22:47:02
○ 2026-04-01 11:56:34
○ 2026-05-15 14:53:10

○NSns16.ixwebhosting.com2015-06-27 → 2016-04-29 · 4 obs

● 2015-06-27 03:06:40
● 2016-04-29 22:47:02
○ 2026-04-01 11:56:34
○ 2026-05-15 14:53:10

●NSns2.a2hosting.com2026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

●NSns3.a2hosting.com2026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

●NSns4.a2hosting.com2026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

●MXmail.manualofmastery.com2026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

○MXmail502.ixwebhosting.com2015-06-27 → 2016-04-29 · 4 obs

● 2015-06-27 03:06:40
● 2016-04-29 22:47:02
○ 2026-04-01 11:56:34
○ 2026-05-15 14:53:10

●A46.250.231.452026-04-01 → 2026-05-15 · 3 obs

○ 2016-04-29 22:47:02
● 2026-04-01 11:56:34
● 2026-05-15 14:53:10

○A98.131.179.12015-06-27 → 2016-04-29 · 4 obs

● 2015-06-27 03:06:40
● 2016-04-29 22:47:02
○ 2026-04-01 11:56:34
○ 2026-05-15 14:53:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net...	-
manualofmastery.com	ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com	4 records

✅ Authoritative Response

Server:76.223.26.245

NS records: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for manualofmastery.com (unsigned zone)

⏱️ Timing

Total: 218ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.250.231.45`
NS	4	`ns4.a2hosting.com, ns1.a2hosting.com...`
MX	1	`mail.manualofmastery.com (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:66.198.240.48 ~all`
SOA	1	`ns1.a2hosting.com root.mi3-cl9-its2.a2ho`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)

Analysis

Hierarchy

The parent of mail.manualofmastery.com is manualofmastery.com.

IP Addresses

manualofmastery.com points to an IP address: 46.250.231.45.

other host names include suhyongsun.com, finelyfinishedhousekeeping.com, enoughwaralready.com, vmi2411580.contaboserver.net and arthomeschooling.com; they share IP numbers with manualofmastery.com.

Name Servers

manualofmastery.com delegates to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.

manualofmastery.com at least partially shares name servers with other domains, for instance saarcstartupawards.com, dtabach.com.br, theclassof67.com, quarzorehabilitaciones.es and www.kynerd.net.

These name servers are commonly used with ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com, ns4.mysecurecloudhost.com, ns1.a2webhosting.com and ns2.a2webhosting.com.

Host names with one IP number: ns1.a2hosting.com points to: 13.248.158.180; ns2.a2hosting.com points to: 75.2.118.134; ns3.a2hosting.com points to: 76.223.26.245; ns4.a2hosting.com points to: 99.83.147.209.

Mail Servers

manualofmastery.com is handled by a single mail server, mail.manualofmastery.com.

The host name mail.manualofmastery.com points to IP 66.198.240.48.

manualofmastery.com - robtex.com