MXLIST.NET - api.questdiagnostics.com

Search for IP or hostnames:

api.questdiagnostics.com checked at 2025-10-15T05:09:35.512Z 176ms 59/59/59 100% R:11

`api.questdiagnostics.com`

NS	`ns11.questdiagnostics.com`
		A	216.203.95.72^{🇺🇸 AS27021}
			PTR	`ns11.questdiagnostics.com`
NS	`ns12.questdiagnostics.com`
		A	216.203.95.73^{🇺🇸 AS27021}
			PTR	`ns12.questdiagnostics.com`
NS	`ns1.questdiagnostics.com`
		A	216.203.80.72^{🇺🇸 AS27021}
			PTR	`ns1.questdiagnostics.com`
NS	`ns3.questdiagnostics.com`
		A	216.203.80.73^{🇺🇸 AS27021}
			PTR	`ns3.questdiagnostics.com`
A	137.135.122.78^{🇺🇸 Microsoft}

`questdiagnostics.com`

	NS	`ns11.questdiagnostics.com`
	NS	`ns12.questdiagnostics.com`
	NS	`ns1.questdiagnostics.com`
	NS	`ns3.questdiagnostics.com`
	MX	`cluster4.us.messagelabs.com`
	MX	`cluster4a.us.messagelabs.com`
	A	52.232.227.90^{🇺🇸 Microsoft}

rank #12205 globally
rank #6316 in the tld

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AI analysis

api.questdiagnostics.com resolves to a single IP address: 137.135.122.78.

api.questdiagnostics.com is delegated to four name servers: ns11.questdiagnostics.com, ns12.questdiagnostics.com, ns1.questdiagnostics.com and ns3.questdiagnostics.com.

api.questdiagnostics.com at least partially shares name servers with other domains, including care360direct.com, swschptesting.com, 253.242.209.in-addr.arpa, sedlabs.com and getcare360.org.

These name servers are commonly used with ns2.questdiagnostics.com and ns4.questdiagnostics.com.

Hostnames with a single IP:

ns11.questdiagnostics.com points to 216.203.95.72

ns12.questdiagnostics.com points to 216.203.95.73

ns1.questdiagnostics.com points to 216.203.80.72

ns3.questdiagnostics.com points to 216.203.80.73

dbq