`usthealthproof.com`

DNSSEC	⚠️ Not signed
A	2620:12a:8000::4^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
A	2620:12a:8001::4^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
A	23.185.0.4^{🇺🇸 Fastly23.185.0.0/24 Pantheon}
NS	`ns21.domaincontrol.com` ⭐
		A	2603:5:2141::b^{🇺🇸 GODADDY-DNS2603:5:2140::/44}
			PTR	`ns21.domaincontrol.com`
		A	97.74.100.11^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns21.domaincontrol.com`
NS	`ns22.domaincontrol.com`
		A	2603:5:2241::b^{🇺🇸 GODADDY-DNS2603:5:2240::/44}
			PTR	`ns22.domaincontrol.com`
		A	173.201.68.11^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns22.domaincontrol.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`v=spf1 ip4:172.179.71.30 ip4:35.231.159.228 ip4:34.145.251.44 include:2045498...`
TXT	`_4oaqfnccxpadyg0nrut0itwplpezkdx`
TXT	`google-site-verification=XFNqINPRqbj6oi0S8ZafxdtgZRqGJ3XNpRlBpazlwZ4`
TXT	`MS=ms76902282`
TXT	`smartsheet-site-validation=jDctdPRzUZhJNFnMy5FcNl51nB41tns0`
TXT	`MS=ms39166683`
TXT	`0ed1fe018a5ab0f00425804eac94a52047f5e5918a`
TXT	`smartsheet-site-validation=v8mnKxycfsmzwFbRRGqKx4cmxGD2aTJD`
TXT	`onetrust-domain-verification=b58f0f620c884df197185f2bcde5b368`
TXT	`anthropic-domain-verification-qap58m=K6r6Q8f6Ea2La8ZaJuxJXGF6o`
TXT	`apple-domain-verification=TyB8pF11kDYPeYcq`
TXT	`google-site-verification=YUcoT4ka6YdB9YDK9Vll8NwMUBXBusRokePeGd0tYUQ`
TXT	`atlassian-domain-verification=STc3NqDPZW1i/S2WVJpZL/6wisFu/0PDf9BSHaagboIn1dx...`
SOA	`ns21.domaincontrol.com`dns@jomax.net 2026-04-20 #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=1777405031

Same first word

usthealthproof.com

DNS History

8 records (7 active, 1 former)

●NSns21.domaincontrol.com2019-12-14 → 2026-04-28 · 2 obs

● 2019-12-14 11:53:22
● 2026-04-28 19:56:40

●NSns22.domaincontrol.com2019-12-14 → 2026-04-28 · 2 obs

● 2019-12-14 11:53:22
● 2026-04-28 19:56:40

●MXus-smtp-inbound-1.mimecast.com2026-03-19 → 2026-04-28 · 2 obs

● 2026-03-19 03:50:42
● 2026-04-28 19:56:40

●MXus-smtp-inbound-2.mimecast.com2026-03-19 → 2026-04-28 · 2 obs

● 2026-03-19 03:50:42
● 2026-04-28 19:56:40

●A23.185.0.42026-03-19 → 2026-04-28 · 3 obs

○ 2019-12-14 11:53:22
● 2026-03-19 03:50:42
● 2026-04-28 19:56:40

●A2620:12a:8000::42026-03-19 → 2026-04-28 · 3 obs

○ 2019-12-14 11:53:22
● 2026-03-19 03:50:42
● 2026-04-28 19:56:40

●A2620:12a:8001::42026-03-19 → 2026-04-28 · 3 obs

○ 2019-12-14 11:53:22
● 2026-03-19 03:50:42
● 2026-04-28 19:56:40

○A50.63.202.552019-12-14 → 2019-12-14 · 3 obs

● 2019-12-14 11:53:22
○ 2026-03-19 03:50:42
○ 2026-04-28 19:56:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net...	-
usthealthproof.com	ns21.domaincontrol.com, ns22.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.100.11

NS records: ns21.domaincontrol.com, ns22.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usthealthproof.com (unsigned zone)

⏱️ Timing

Total: 164ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`23.185.0.4`
AAAA	2	`2620:12a:8000::4, 2620:12a:8001::4`
NS	2	`ns21.domaincontrol.com, ns22.domaincontrol.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 1), us-smtp-inbound-2.mimecast.com (pri: 1)`
TXT	13	`v=spf1 ip4:172.179.71.30 ip4:35.231.159., _4oaqfnccxpadyg0nrut0itwplpezkdx...`
SOA	1	`ns21.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns21.domaincontrol.com, ns21.domaincontrol.com, ns22.domaincontrol.com...)

Analysis

IP Addresses

Three IP numbers are pointed to by usthealthproof.com: 2620:12a:8000::4, 2620:12a:8001::4 and 23.185.0.4.

Other host names, for instance nestlebaby.se, recyclestuff.us, atlasfibre.com, repository.usc.edu and harvard-magazine.com share IP numbers with usthealthproof.com.

Name Servers

Delegation for usthealthproof.com rests with two name servers, ns21.domaincontrol.com and ns22.domaincontrol.com.

usthealthproof.com shares the same name server setup as other domains, including tanya-best.net, meadowridgeevents.com, landofkiyam.com, block162.com and slotsheet.com.

Host names with two IP numbers: ns21.domaincontrol.com points to 2603:5:2141::b and 97.74.100.11; ns22.domaincontrol.com points to 2603:5:2241::b and 173.201.68.11.

Mail Servers

usthealthproof.com is handled by two mail servers: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

usthealthproof.com uses the same mail server configuration as other domains, such as csglaw.com, icaadjusters.com, asam.org, cellmarkpaperla.com and aftco.com.

usthealthproof.com shares mail servers with other domains at least in part, for instance altairglobal.com, awarehq.com, bangboards.com, dalina.ca and calcomsolar.com.