`hvactechschool.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns2.afternic.com` ⭐
		A	2603:5:2226::45^{🇺🇸 GODADDY-DNS2603:5:2220::/44}
			PTR	`ns2.afternic.com`
		A	173.201.66.69^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.afternic.com`
NS	`ns1.afternic.com`
		A	2603:5:2126::45^{🇺🇸 GODADDY-DNS2603:5:2120::/44}
			PTR	`ns1.afternic.com`
		A	97.74.98.69^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.afternic.com`
TXT	`v=spf1 -all`
SOA	`ns2.afternic.com`dns@jomax.net serial=1

`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=1778505866

Subdomains

mail.hvactechschool.com

Same first word

hvactechschool.com

DNS History

15 records (4 active, 11 former)

○NSdns1.namecheaphosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

○NSdns2.namecheaphosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

●NSns1.afternic.com2026-02-23 → 2026-05-11 · 3 obs

○ 2018-09-03 15:20:18
● 2026-02-23 09:32:30
● 2026-05-11 13:37:50

○NSns1.mediatemple.net2018-09-03 → 2018-09-03 · 4 obs

○ 2017-02-07 17:44:38
● 2018-09-03 15:20:18
○ 2026-02-23 09:32:30
○ 2026-05-11 13:37:50

●NSns2.afternic.com2026-02-23 → 2026-05-11 · 3 obs

○ 2018-09-03 15:20:18
● 2026-02-23 09:32:30
● 2026-05-11 13:37:50

○NSns2.mediatemple.net2018-09-03 → 2018-09-03 · 4 obs

○ 2017-02-07 17:44:38
● 2018-09-03 15:20:18
○ 2026-02-23 09:32:30
○ 2026-05-11 13:37:50

○MXmail.hvactechschool.com2018-09-03 → 2018-09-03 · 4 obs

○ 2017-02-07 17:44:38
● 2018-09-03 15:20:18
○ 2026-02-23 09:32:30
○ 2026-05-11 13:37:50

○MXsmx1.web-hosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

○MXsmx2.web-hosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

○MXsmx3.web-hosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

○MXsmx4.web-hosting.com2016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

●A13.248.169.482026-02-23 → 2026-05-11 · 3 obs

○ 2018-09-03 15:20:18
● 2026-02-23 09:32:30
● 2026-05-11 13:37:50

○A198.54.114.1932016-02-24 → 2016-06-22 · 4 obs

● 2016-02-24 07:08:58
● 2016-06-22 01:27:52
○ 2017-02-07 17:44:38
○ 2026-05-11 13:37:50

○A205.186.183.2442018-09-03 → 2018-09-03 · 4 obs

○ 2017-02-07 17:44:38
● 2018-09-03 15:20:18
○ 2026-02-23 09:32:30
○ 2026-05-11 13:37:50

●A76.223.54.1462026-02-23 → 2026-05-11 · 3 obs

○ 2018-09-03 15:20:18
● 2026-02-23 09:32:30
● 2026-05-11 13:37:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
hvactechschool.com	ns1.afternic.com, ns2.afternic.com	4 records

✅ Authoritative Response

Server:173.201.66.69

NS records: ns1.afternic.com, ns2.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hvactechschool.com (unsigned zone)

⏱️ Timing

Total: 102ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.54.146, 13.248.169.48`
NS	2	`ns1.afternic.com, ns2.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns2.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

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

Analysis

Hierarchy

hvactechschool.com is the parent of mail.hvactechschool.com.

IP Addresses

hvactechschool.com resolves to two IP numbers: 13.248.169.48 and 76.223.54.146.

other host names including adsl-208-206.cornhusker.net, didsentiment.xyz, flychart.com, busygate.com and restfulsounds.com share IP numbers with hvactechschool.com.

Name Servers

hvactechschool.com is delegated to two name servers ns1.afternic.com and ns2.afternic.com.

hvactechschool.com shares the same name server setup as other domains, for instance clearpathcoach.com, td-com.com, tvd.chainbyte.com, news4london.com and rov.us.

hvactechschool.com at least partially shares name servers with other domains, for instance epostoffice.us, weddressshopnear.com, upscale10x.com, exclusive.network and mashallah.org.

These name servers are commonly used with verification-m3erh32ujyoastvophjvuz.ns101.verify.hn, verification-d3jclucsp89ganyqbydeny.ns101.verify.hn and verification-gva484mj3nv4guz8sbdfk5.ns101.verify.hn.

Host names with two IP numbers:

The host name ns1.afternic.com points to 2603:5:2126::45 and 97.74.98.69; the host name ns2.afternic.com points to 2603:5:2226::45 and 173.201.66.69.

hvactechschool.com - robtex.com