`johnshealyphd.com`

DNSSEC	⚠️ Not signed
NS	`dns4.pair.com` ⭐ ⚠️ Not in parent delegation
		A	2607:f440::d85c:fc0a^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`dns4.pair.com`
		A	216.92.252.10^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`dns4.pair.com`
NS	`dns.pair.com` ⚠️ Not in zone NS records
		A	2607:f440::d144:5f6^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`dns.pair.com`
		A	209.68.5.246^{🇺🇸 AS7859209.68.0.0/18}
			PTR	`dns.pair.com`
NS	`ns9.ns0.com`
		A	2607:f441::d892:c124^{🇺🇸 AS78592607:f441::/32 Pair Networks, Inc. 2403 Sidney St STE 210 Pittsburgh PA 15203 United States}
			PTR	`ns9.ns0.com`
		A	216.146.193.36^{🇺🇸 AS7859216.146.192.0/19 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns9.ns0.com`
MX	`mail4.g24.pair.com` ⭐
		A	2607:f440::4227:188a^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mail4.g24.pair.com`
		A	66.39.24.138^{🇺🇸 AS785966.39.0.0/17 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mail4.g24.pair.com`
SOA	`dns.pair.com`root@pair.com 2026-01-21 #4

`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=1775959132

PTR for

102.67.39.66.in-addr.arpa

Same first word

johnshealyphd.com

DNS History

7 records (4 active, 3 former)

●NSdns.pair.com2026-04-03 → 2026-04-12 · 3 obs

○ 2019-12-16 13:09:22
● 2026-04-03 19:53:18
● 2026-04-12 02:28:40

●NSdns4.pair.com2019-12-16 → 2026-04-12 · 2 obs

● 2019-12-16 13:09:22
● 2026-04-12 02:28:40

○NSns8.ns0.com2019-12-16 → 2019-12-16 · 3 obs

● 2019-12-16 13:09:22
○ 2026-04-03 19:53:18
○ 2026-04-12 02:28:40

●NSns9.ns0.com2026-04-03 → 2026-04-12 · 3 obs

○ 2019-12-16 13:09:22
● 2026-04-03 19:53:18
● 2026-04-12 02:28:40

●MXmail4.g24.pair.com2026-04-12 → 2026-04-12 · 2 obs

○ 2026-04-03 19:53:18
● 2026-04-12 02:28:40

○MXmailwash46.pair.com2019-12-16 → 2019-12-16 · 3 obs

● 2019-12-16 13:09:22
○ 2026-04-03 19:53:18
○ 2026-04-12 02:28:40

○A66.39.110.462019-12-16 → 2019-12-16 · 3 obs

● 2019-12-16 13:09:22
○ 2026-04-03 19:53:18
○ 2026-04-12 02:28:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
johnshealyphd.com	dns4.pair.com, ns9.ns0.com	4 records

✅ Authoritative Response

Server:216.146.193.36

NS records: dns4.pair.com, ns9.ns0.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for johnshealyphd.com (unsigned zone)

⏱️ Timing

Total: 226ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.39.67.102`
MX	1	`mail4.g24.pair.com (pri: 50)`
SOA	1	`dns.pair.com root.pair.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns4.pair.com, dns4.pair.com, ns9.ns0.com...)

Analysis

Name Servers

johnshealyphd.com is delegated to three name servers ns9.ns0.com, dns4.pair.com and dns.pair.com.

johnshealyphd.com at least partially shares name servers with other domains, for instance akademik.com, innovollc.com, arcflashprinting.com, multi-fab.com and catinabowl.net.

These name servers are commonly used with ns7.ns0.com, ns8.ns0.com, ns0.ns0.com, ns2.quickserve.com and ns1.quickserve.com.

Host names with two IP numbers:

ns9.ns0.com points to: 2607:f441::d892:c124 and 216.146.193.36.

dns4.pair.com points to: 2607:f440::d85c:fc0a and 216.92.252.10.

dns.pair.com points to: 2607:f440::d144:5f6 and 209.68.5.246.

Mail Servers

johnshealyphd.com is handled by a single mail server, mail4.g24.pair.com.

johnshealyphd.com shares the same mail server setup as other domains, for instance apokeinthebrain.com, beaufortscattorney.com, astrocamera.net, andreagiovannacoppa.com and smesalesservice.com.

johnshealyphd.com shares some mail servers with other domains, at least partially, for instance smbhax.com, polepeddi.net, zeromanual.com, marisensing.com and muchukot.com.

mail4.g24.pair.com resolves to two IP numbers: 2607:f440::4227:188a and 66.39.24.138.

johnshealyphd.com - robtex.com