`ctsheatingandcooling.com`

DNSSEC	⚠️ Not signed
A	66.198.240.43^{🇺🇸 AS1990566.198.240.0/24}
		PTR	`mi3-ts109.a2hosting.com`
NS	`ns1.a2hosting.com` ⭐
		A	13.248.158.180
NS	`ns2.a2hosting.com`
NS	`ns3.a2hosting.com`
NS	`ns4.a2hosting.com`
MX	`mail.ctsheatingandcooling.com` ⭐
TXT	`v=spf1 +a +mx +ip4:66.198.240.43 include:spf.a2hosting.com ~all`
SOA	`ns1.a2hosting.com`root@mi3-ts109.a2hosting.com 2026-04-29 #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=1778666336

Subdomains

mail.ctsheatingandcooling.com

Same first word

ctsheatingandcooling.com

DNS History

6 records (6 active, 0 former)

●NSns1.a2hosting.com2026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

●NSns2.a2hosting.com2026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

●NSns3.a2hosting.com2026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

●NSns4.a2hosting.com2026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

●MXmail.ctsheatingandcooling.com2026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

●A66.198.240.432026-02-20 → 2026-05-13 · 2 obs

● 2026-02-20 20:29:10
● 2026-05-13 10:05:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ctsheatingandcooling.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 ctsheatingandcooling.com (unsigned zone)

⏱️ Timing

Total: 1158ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.198.240.43`
NS	4	`ns1.a2hosting.com, ns2.a2hosting.com...`
MX	1	`mail.ctsheatingandcooling.com (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:66.198.240.43 include`
SOA	1	`ns1.a2hosting.com root.mi3-ts109.a2hosti`

📌 Glue Records Collected

Total: 4

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

Analysis

Hierarchy

ctsheatingandcooling.com is a parent of mail.ctsheatingandcooling.com.

IP Addresses

ctsheatingandcooling.com points to a single IP number: 66.198.240.43.

Name Servers

ctsheatingandcooling.com is delegated to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.

Host names with a single IP address map to 13.248.158.180 and the host name ns1.a2hosting.com points to 13.248.158.180.

Mail Servers

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

ctsheatingandcooling.com - robtex.com