`questdiagnostics-qis.com`

DNSSEC	⚠️ Not signed
A	63.236.215.204^{🇺🇸 AS20963.224.0.0/12}
		PTR	`63-236-215-204.dia.static.centurylink.net`
NS	`authns1.qwest.net` ⭐ ⚠️ Not in parent delegation
		A	2001:428::5^{🇺🇸 AS2092001:428::/32}
			PTR	`authns1.qwest.net`
		A	63.150.72.4^{🇺🇸 AS20963.144.0.0/12}
			PTR	`authns1.centurylink.net`
			PTR	`authns1.qwest.net`
			PTR	`authns1.lumen.tech`
NS	`authns2.qwest.net` ⚠️ Not in parent delegation
		A	2001:428::6^{🇺🇸 AS2092001:428::/32}
			PTR	`authns2.qwest.net`
		A	208.44.130.120^{🇺🇸 AS209208.44.0.0/14}
			PTR	`authns2.centurylink.net`
			PTR	`authns2.qwest.net`
			PTR	`authns2.lumen.tech`
NS	`dca-ans-01.inet.qwest.net` ⚠️ Not in zone NS records
		A	63.150.72.4^{🇺🇸 AS20963.144.0.0/12}
			PTR	`authns1.centurylink.net`
			PTR	`authns1.qwest.net`
			PTR	`authns1.lumen.tech`
NS	`svl-ans-01.inet.qwest.net` ⚠️ Not in zone NS records
		A	208.44.130.120^{🇺🇸 AS209208.44.0.0/14}
			PTR	`authns2.centurylink.net`
			PTR	`authns2.qwest.net`
			PTR	`authns2.lumen.tech`
MX	`mail.questdiagnostics-qis.com` ⭐
		A	63.236.215.209^{🇺🇸 AS20963.224.0.0/12}
			PTR	`mail.questdiagnostics-qis.com`
SOA	`authns1.qwest.net`dns-admin@qwestip.net serial=2150915000

`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=1777587366

Subdomains

mail.questdiagnostics-qis.com

www.questdiagnostics-qis.com

Same first word

questdiagnostics-qis.com

DNS History

6 records (6 active, 0 former)

●NSauthns1.qwest.net2015-07-20 → 2026-04-30 · 2 obs

● 2015-07-20 01:10:18
● 2026-04-30 22:18:08

●NSauthns2.qwest.net2015-07-20 → 2026-04-30 · 5 obs

● 2015-07-20 01:10:18
○ 2015-12-06 12:26:30
○ 2016-03-11 08:05:36
● 2016-08-11 16:36:16
● 2026-04-30 22:18:08

●NSdca-ans-01.inet.qwest.net2026-04-30 → 2026-04-30 · 2 obs

○ 2016-08-11 16:36:16
● 2026-04-30 22:18:08

●NSsvl-ans-01.inet.qwest.net2026-04-30 → 2026-04-30 · 2 obs

○ 2016-08-11 16:36:16
● 2026-04-30 22:18:08

●MXmail.questdiagnostics-qis.com2015-07-20 → 2026-04-30 · 2 obs

● 2015-07-20 01:10:18
● 2026-04-30 22:18:08

●A63.236.215.2042015-07-20 → 2026-04-30 · 2 obs

● 2015-07-20 01:10:18
● 2026-04-30 22:18:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
questdiagnostics-qis.com	svl-ans-01.inet.qwest.net, dca-ans-01.inet.qwest.net	-

✅ Authoritative Response

Server:63.150.72.4

NS records: svl-ans-01.inet.qwest.net, dca-ans-01.inet.qwest.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for questdiagnostics-qis.com (unsigned zone)

⏱️ Timing

Total: 585ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`63.236.215.204`
NS	2	`authns1.qwest.net, authns2.qwest.net`
MX	1	`mail.questdiagnostics-qis.com (pri: 10)`
SOA	1	`authns1.qwest.net dns-admin.qwestip.net`

Analysis

Hierarchy

questdiagnostics-qis.com is a parent of mail.questdiagnostics-qis.com and www.questdiagnostics-qis.com.

IP Addresses

questdiagnostics-qis.com points to IP number: 63.236.215.204.

Name Servers

questdiagnostics-qis.com is delegated to four name servers: authns1.qwest.net, authns2.qwest.net, dca-ans-01.inet.qwest.net and svl-ans-01.inet.qwest.net.

questdiagnostics-qis.com at least partially shares name servers with other domains, for instance 151.119.65.in-addr.arpa, 75.120.65.in-addr.arpa, 193.55.71.in-addr.arpa, 43.46.208.in-addr.arpa and 94.77.66.in-addr.arpa.

These name servers are commonly used alongside ns3.moody.edu, authns1.centurylink.net, authns2.centurylink.net, ns1.principal.com, steel-dr.imation.com, steel.imation.com, udns1.ultradns.net, auth111.ns.uu.net, auth120.ns.uu.net and ns0.fewpb.net.

Host names with two IP numbers:

authns1.qwest.net points to 2001:428::5 and 63.150.72.4

authns2.qwest.net points to 2001:428::6 and 208.44.130.120

Host names with one IP number:

dca-ans-01.inet.qwest.net points to 63.150.72.4

svl-ans-01.inet.qwest.net points to 208.44.130.120

Host names that point to 63.150.72.4:

authns1.qwest.net and dca-ans-01.inet.qwest.net

Host names that point to 208.44.130.120:

authns2.qwest.net and svl-ans-01.inet.qwest.net

Mail Servers

questdiagnostics-qis.com is handled by a single mail server, mail.questdiagnostics-qis.com.

mail.questdiagnostics-qis.com points to a single IP: 63.236.215.209.

questdiagnostics-qis.com - robtex.com