WWW.RTSAK.COM - osr.columbia.edu
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osr.columbia.edu checked at 2025-11-25T10:19:43.542Z 418ms 57/57/57 100% R:14 allDone:true timedOut:false osr.columbia.edu
| NS | ext-ns1.columbia.edu | ||||||
| A | 2001:18d8::35 🇺🇸 Columbia University | ||||||
| PTR | ext-ns1.columbia.edu | ||||||
| A | 2001:18d8:1::1:1 🇺🇸 Columbia University | ||||||
| PTR | ext-ns1.columbia.edu | ||||||
| A | 128.59.1.1🇺🇸 Columbia University | ||||||
| PTR | ext-ns1.columbia.edu | ||||||
| NS | ns1.nyp.org | ||||||
| A | 156.145.252.11🇺🇸 NYP-INTERNET | ||||||
| PTR | ns1.nyp.org | ||||||
| NS | ns2.nyp.org | ||||||
| A | 143.104.238.11🇺🇸 NYP-INTERNET | ||||||
| PTR | ns2.nyp.org | ||||||
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
osr.columbia.edu is delegated to three name servers: ext-ns1.columbia.edu, ns1.nyp.org and ns2.nyp.org.
osr.columbia.edu at least partially shares name servers with other domains, including brooklyn.cuny.edu, braingenethics.cumc.columbia.edu, amistadresource.org, law.columbia.edu and laguardia.cuny.edu.
These name servers are commonly used with lex-iblxext1.med.cornell.edu, york-iblxext1.med.cornell.edu, ext-ns2.columbia.edu, acme.ucc.cuny.edu, lavinia.cis.cuny.edu, ns10.customer.level3.net, ns15.customer.level3.net, apollo.cs.columbia.edu, diana.cs.columbia.edu and sundog.ee.columbia.edu.
Host names with three IP numbers: Host name ext-ns1.columbia.edu points to: 2001:18d8::35, 2001:18d8:1::1:1 and 128.59.1.1.
Host names with one IP number: Host name ns1.nyp.org points to: 156.145.252.11. Host name ns2.nyp.org points to: 143.104.238.11.