`johnstoncoolingandheating.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:2e4d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8869^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.77^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.105^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`laura.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`laura.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`laura.ns.cloudflare.com`
		A	108.162.192.183^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	172.64.32.183^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	173.245.58.183^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
TXT	`google-site-verification=I-qS-xWYAebaKfSEyN3ymc2Su2HLyV3-WriW6It2hvc`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.77, 172.67.136.105
		IPv6 hints	2606:4700:3034::6815:2e4d, 2606:4700:3037::ac43:8869
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2401256243

`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=1776961206

Same first word

johnstoncoolingandheating.com

DNS History

10 records (6 active, 4 former)

●NSharlan.ns.cloudflare.com2026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

●NSlaura.ns.cloudflare.com2026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

○NSns33.domaincontrol.com2016-12-18 → 2017-09-15 · 4 obs

● 2016-12-18 18:36:18
● 2017-09-15 20:46:58
○ 2026-04-10 21:26:20
○ 2026-04-23 16:26:28

○NSns34.domaincontrol.com2016-12-18 → 2017-09-15 · 4 obs

● 2016-12-18 18:36:18
● 2017-09-15 20:46:58
○ 2026-04-10 21:26:20
○ 2026-04-23 16:26:28

○MXjohnstoncoolingandheating-com.mail.protection.outlook.com2016-12-18 → 2017-09-15 · 4 obs

● 2016-12-18 18:36:18
● 2017-09-15 20:46:58
○ 2026-04-10 21:26:20
○ 2026-04-23 16:26:28

●A104.21.46.772026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

●A172.67.136.1052026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

●A2606:4700:3034::6815:2e4d2026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

●A2606:4700:3037::ac43:88692026-04-10 → 2026-04-23 · 3 obs

○ 2017-09-15 20:46:58
● 2026-04-10 21:26:20
● 2026-04-23 16:26:28

○A66.155.35.2402016-12-18 → 2017-09-15 · 4 obs

● 2016-12-18 18:36:18
● 2017-09-15 20:46:58
○ 2026-04-10 21:26:20
○ 2026-04-23 16:26:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
johnstoncoolingandheating.com	laura.ns.cloudflare.com, harlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.250

NS records: laura.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for johnstoncoolingandheating.com (unsigned zone)

⏱️ Timing

Total: 318ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.46.77, 172.67.136.105`
AAAA	2	`2606:4700:3037::ac43:8869, 2606:4700:3034::6815:2e4d`
NS	2	`harlan.ns.cloudflare.com, laura.ns.cloudflare.com`
TXT	1	`google-site-verification=I-qS-xWYAebaKfS`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (laura.ns.cloudflare.com, laura.ns.cloudflare.com, laura.ns.cloudflare.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by johnstoncoolingandheating.com: 2606:4700:3034::6815:2e4d, 2606:4700:3037::ac43:8869, 104.21.46.77 and 172.67.136.105.

other host names including harmstieg.com, www.index-express.ru, suicide-hotline.com, www.mantebridts.be and www.szcheng.com share IP numbers with johnstoncoolingandheating.com.

Name Servers

johnstoncoolingandheating.com is delegated to two name servers harlan.ns.cloudflare.com and laura.ns.cloudflare.com.

johnstoncoolingandheating.com shares the same name server setup as other domains, for instance therat.gr, (0x6469636b)sprimalburger.com, kasidiaris.com, webstorereviews.net and banahosting.com.

johnstoncoolingandheating.com at least partially shares name servers with other domains, for instance alfaonline.com.br, flour.biz, 10bestllcservices.com, szaolin.com and acmnet.com.br.

These name servers are commonly used with nena.ns.cloudflare.com, augustus.ns.cloudflare.com and carter.ns.cloudflare.com.

Host names with six IP numbers:

Host name harlan.ns.cloudflare.com points to: 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250.

Host name laura.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab7, 2803:f800:50::6ca2:c0b7, 2a06:98c1:50::ac40:20b7, 108.162.192.183, 172.64.32.183 and 173.245.58.183.

johnstoncoolingandheating.com - robtex.com