WWW.RTSAK.COM - ctr.columbia.edu
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ctr.columbia.edu checked at 2025-11-25T17:50:44.246Z 5009ms 71/77/77 92% R:22 allDone:false timedOut:true ctr.columbia.edu
| NS | ext-ns1.columbia.edu | ||||||
| A | 128.59.1.1🇺🇸 Columbia University | ||||||
| PTR | ext-ns1.columbia.edu | ||||||
| NS | ext-ns2.columbia.edu | ||||||
| A | 128.59.1.2🇺🇸 Columbia University | ||||||
| PTR | ext-ns2.columbia.edu | ||||||
| MX | mxa-00364e01.gslb.pphosted.com | ||||||
| A | 148.163.139.74🇺🇸 Proofpoint | ||||||
| PTR | mx0b-00364e01.pphosted.com | ||||||
| MX | mxb-00364e01.gslb.pphosted.com | ||||||
| A | 148.163.135.74🇺🇸 Proofpoint | ||||||
| PTR | mx0a-00364e01.pphosted.com | ||||||
| NS | apollo.cs.columbia.edu | ||||||
| A | 128.59.16.69🇺🇸 Columbia University | ||||||
| PTR | apollo.cs.columbia.edu | ||||||
| NS | sundog.ee.columbia.edu | ||||||
| A | 128.59.64.59🇺🇸 Columbia University | ||||||
| PTR | riverside.ee.columbia.edu | ||||||
| PTR | sundog.ee.columbia.edu | ||||||
columbia.edu
rank #9 in the tld
This domain name "columbia.edu" is associated with Columbia University, a private Ivy League research university located in New York City. It is used for the university's main website, email addresses, and various online services related to the institution. The ".edu" extension indicates that the domain is primarily used for educational institutions.
Starts with same word
Starts similarily
AI analysis
ctr.columbia.edu is delegated to four name servers: ext-ns1.columbia.edu, ext-ns2.columbia.edu, apollo.cs.columbia.edu and sundog.ee.columbia.edu.
ctr.columbia.edu at least partially shares its name servers with other domains, for instance cis.cuny.edu, fmri.columbia.edu, brooklyn.cuny.edu, braingenethics.cumc.columbia.edu and amistadresource.org.
These name servers are commonly used with diana.cs.columbia.edu, ns1.nyp.org, ns2.nyp.org, acme.ucc.cuny.edu, lavinia.cis.cuny.edu, ns10.customer.level3.net, ns15.customer.level3.net, auth1.dns.cogentco.com, auth2.dns.cogentco.com and auth4.dns.cogentco.com.
Host names with one IP number: ext-ns1.columbia.edu points to 128.59.1.1; ext-ns2.columbia.edu points to 128.59.1.2; apollo.cs.columbia.edu points to 128.59.16.69; sundog.ee.columbia.edu points to 128.59.64.59.
Two mail servers mxa-00364e01.gslb.pphosted.com and mxb-00364e01.gslb.pphosted.com handle ctr.columbia.edu.
ctr.columbia.edu uses the same mail server setup as other domains such as ce.columbia.edu, cuit.columbia.edu, asit.columbia.edu, ctm.columbia.edu and mail.columbia.edu.
Host names with a single IP:
mxa-00364e01.gslb.pphosted.com resolves to 148.163.139.74.
mxb-00364e01.gslb.pphosted.com resolves to 148.163.135.74.