`jcosgrove.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:49e3^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:a75e^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.227^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.167.94^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aron.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a45^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c045^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aron.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2045^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aron.ns.cloudflare.com`
		A	108.162.192.69^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	172.64.32.69^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	173.245.58.69^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
NS	`kip.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c180^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kip.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2180^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kip.ns.cloudflare.com`
		A	108.162.193.128^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	172.64.33.128^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	173.245.59.128^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=Ti7zdO-uHUrvJ1U_mvkhuYIKOEdPcOnlSyjvAWsVL7Q`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.73.227, 172.67.167.94
		IPv6 hints	2606:4700:3030::6815:49e3, 2606:4700:3031::ac43:a75e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com
SOA	`aron.ns.cloudflare.com`dns@cloudflare.com serial=2409345215

`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=1785645067

🔒 HSTS Preload (+subdomains)

Same first word

jcosgrove.com

DNS History

23 records (11 active, 12 former)

●NSaron.ns.cloudflare.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

●NSkip.ns.cloudflare.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

○NSns65.domaincontrol.com2015-06-30 → 2019-03-22 · 4 obs

● 2015-06-30 12:12:06
● 2019-03-22 15:03:32
○ 2026-02-15 19:23:52
○ 2026-08-02 04:48:30

○NSns66.domaincontrol.com2015-06-30 → 2019-03-22 · 4 obs

● 2015-06-30 12:12:06
● 2019-03-22 15:03:32
○ 2026-02-15 19:23:52
○ 2026-08-02 04:48:30

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

●MXaspmx.l.google.com2026-02-15 → 2026-08-02 · 3 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-08-02 04:48:30

○MXmailstore1.secureserver.net2015-06-30 → 2019-03-22 · 4 obs

● 2015-06-30 12:12:06
● 2019-03-22 15:03:32
○ 2026-02-15 19:23:52
○ 2026-08-02 04:48:30

○MXsmtp.secureserver.net2015-06-30 → 2019-03-22 · 4 obs

● 2015-06-30 12:12:06
● 2019-03-22 15:03:32
○ 2026-02-15 19:23:52
○ 2026-08-02 04:48:30

●A104.21.73.2272026-02-15 → 2026-08-02 · 5 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-05-23 09:31:18
○ 2026-06-08 03:39:02
● 2026-08-02 04:48:30

●A172.67.167.942026-02-15 → 2026-08-02 · 5 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-05-23 09:31:18
○ 2026-06-08 03:39:02
● 2026-08-02 04:48:30

○A184.168.131.2412019-03-22 → 2019-03-22 · 4 obs

○ 2017-02-08 14:00:30
● 2019-03-22 15:03:32
○ 2026-02-15 19:23:52
○ 2026-08-02 04:48:30

○A188.114.96.02026-06-08 → 2026-06-08 · 3 obs

○ 2026-05-23 09:31:18
● 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

○A188.114.97.02026-06-08 → 2026-06-08 · 3 obs

○ 2026-05-23 09:31:18
● 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

●A2606:4700:3030::6815:49e32026-08-02 → 2026-08-02 · 2 obs

○ 2026-06-08 03:39:02
● 2026-08-02 04:48:30

●A2606:4700:3031::ac43:a75e2026-08-02 → 2026-08-02 · 2 obs

○ 2026-06-08 03:39:02
● 2026-08-02 04:48:30

○A2606:4700:3036::6815:49e32026-02-15 → 2026-05-23 · 5 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-05-23 09:31:18
○ 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

○A2606:4700:3037::ac43:a75e2026-02-15 → 2026-05-23 · 5 obs

○ 2019-03-22 15:03:32
● 2026-02-15 19:23:52
● 2026-05-23 09:31:18
○ 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

○A2a06:98c1:3120::2026-06-08 → 2026-06-08 · 3 obs

○ 2026-05-23 09:31:18
● 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

○A2a06:98c1:3121::2026-06-08 → 2026-06-08 · 3 obs

○ 2026-05-23 09:31:18
● 2026-06-08 03:39:02
○ 2026-08-02 04:48:30

○A50.63.202.562015-06-30 → 2017-02-08 · 4 obs

● 2015-06-30 12:12:06
● 2017-02-08 14:00:30
○ 2019-03-22 15:03:32
○ 2026-08-02 04:48:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jcosgrove.com	kip.ns.cloudflare.com, aron.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.128

NS records: kip.ns.cloudflare.com, aron.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.167.94, 104.21.73.227`
AAAA	2	`2606:4700:3030::6815:49e3, 2606:4700:3031::ac43:a75e`
NS	2	`aron.ns.cloudflare.com, kip.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=Ti7zdO-uHUrvJ1U, v=spf1 include:_spf.google.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aron.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

jcosgrove.com has four IP addresses: 104.21.73.227, 172.67.167.94, 2606:4700:3030::6815:49e3 and 2606:4700:3031::ac43:a75e.

Among the host names that share IP numbers with jcosgrove.com are i9xx.com, kaminska.it, smart-team-24.me and two others.

Name Servers

Two name servers handle the delegation for jcosgrove.com: aron.ns.cloudflare.com and kip.ns.cloudflare.com.

jcosgrove.com has the same name server delegation as a number of other domains, such as remax-ireland.com, remax-sweden.com, pro-photographer.com and two more.

jcosgrove.com shares at least some of its name servers with other domains, including thevapegiant.com, twiggy.tw, (0x736578)y1688.com and two others.

These name servers are frequently paired with the name servers ryleigh.ns.cloudflare.com, jake.ns.cloudflare.com and theo.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

aron.ns.cloudflare.com resolves to 108.162.192.69, 172.64.32.69 and 173.245.58.69 among others, with 3 other IP addresses in total.

kip.ns.cloudflare.com resolves to 108.162.193.128, 172.64.33.128 and 173.245.59.128 among others, with 3 other IP addresses in total.

Mail Servers

Mail for jcosgrove.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

jcosgrove.com shares at least some of its mail servers with other domains — for example mplandscapes.com.au, exeter.k12.ca.us, ns500742.ns500742.ns500671.ns500754.ns500731.ns500705.ns500705.ns500704.ns500291.ns500291.ns500666.ns500131.lustychickser.com and two more.

It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.

Hosts with two IP numbers each:

aspmx.l.google.com resolves to two addresses: 142.251.163.26 and 2607:f8b0:4004:c06::1b.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.

jcosgrove.com - robtex.com

jcosgrove.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`jcosgrove.com`

`com`