DNSWHOIS.INFO - theory.caltech.edu

Search for IP or hostnames:

theory.caltech.edu checked at 2025-10-08T02:07:07.694Z 112ms 59/59/59 100% R:12

`theory.caltech.edu`

MX	`mx1.caltech.iphmx.com`
		A	68.232.137.147^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
		A	68.232.147.192^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
MX	`mx2.caltech.iphmx.com`
		A	68.232.137.147^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
		A	68.232.147.192^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
A	131.215.116.2^{🇺🇸 CALIT}
		PTR	`theory.caltech.edu`

`caltech.edu`

	NS	`ns0090.secondary.cloudflare.com`
	NS	`ns0239.secondary.cloudflare.com`
	MX	`mx1.caltech.iphmx.com`
	MX	`mx2.caltech.iphmx.com`
	A	52.26.125.194^{🇺🇸 Amazon}

rank #932 globally
rank #56 in the tld
This domain "caltech.edu" is the official website for the California Institute of Technology. It provides information about the university's academic programs, research work, admissions, faculty, and various other resources for students and staff. The .edu extension indicates that it is an educational institution.

PTR for

2.116.215.131.in-addr.arpa

Up

www.theory.caltech.edu

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AI analysis

theory.caltech.edu is the parent of www.theory.caltech.edu.

theory.caltech.edu resolves to one IP number: 131.215.116.2.

Two mail servers handle theory.caltech.edu: mx1.caltech.iphmx.com and mx2.caltech.iphmx.com.

theory.caltech.edu shares the same mail server setup as other domains, for instance cns.caltech.edu, aero.caltech.edu, hss.caltech.edu, sms.caltech.edu and vigeland.paradise.caltech.edu.

theory.caltech.edu shares some mail servers with other domains, at least partially, for example ad.caltech.edu and ipac.caltech.edu.

Host names with two IP numbers:

mx1.caltech.iphmx.com points to 68.232.137.147 and 68.232.147.192

mx2.caltech.iphmx.com points to 68.232.137.147 and 68.232.147.192

Host names pointing to 68.232.137.147: mx1.caltech.iphmx.com and mx2.caltech.iphmx.com

Host names pointing to 68.232.147.192: mx1.caltech.iphmx.com and mx2.caltech.iphmx.com

dbq