columbia.edu
Updated:
2026-01-30 04:04:10 UTC (15 days ago)
Update now
DNS Server Responses
Responses for columbia.edu/DS
| Name | TTL | Type | Data | Status | Returned by | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| a.edu-servers.net. (192.5.6.30) | a.edu-servers.net. (2001:503:a83e::2:30) | b.edu-servers.net. (192.33.14.30) | b.edu-servers.net. (2001:503:231d::2:30) | c.edu-servers.net. (192.26.92.30) | c.edu-servers.net. (2001:503:83eb::30) | d.edu-servers.net. (192.31.80.30) | d.edu-servers.net. (2001:500:856e::30) | e.edu-servers.net. (192.12.94.30) | e.edu-servers.net. (2001:502:1ca1::30) | f.edu-servers.net. (192.35.51.30) | f.edu-servers.net. (2001:503:d414::30) | g.edu-servers.net. (192.42.93.30) | g.edu-servers.net. (2001:503:eea3::30) | h.edu-servers.net. (192.54.112.30) | h.edu-servers.net. (2001:502:8cc::30) | i.edu-servers.net. (192.43.172.30) | i.edu-servers.net. (2001:503:39c1::30) | j.edu-servers.net. (192.48.79.30) | j.edu-servers.net. (2001:502:7094::30) | k.edu-servers.net. (192.52.178.30) | k.edu-servers.net. (2001:503:d2d::30) | l.edu-servers.net. (192.41.162.30) | l.edu-servers.net. (2001:500:d937::30) | m.edu-servers.net. (192.55.83.30) | m.edu-servers.net. (2001:501:b1f9::30) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | 0/6/1 | |||
| Response size (bytes) | OK | 585 | 585 | 587 | 587 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | 585 | |||
| Response time (ms) | OK | 58 | 58 | 7 | 7 | 58 | 56 | 59 | 57 | 58 | 59 | 17 | 18 | 21 | 18 | 18 | 16 | 21 | 21 | 7 | 10 | 10 | 10 | 3 | 7 | 10 | 10 | |||
Responses for columbia.edu/DNSKEY
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 47 | 48 | 95 | 214 | |||||||
Responses for columbia.edu/NS
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | NS |
ns1.lse.ac.uk.
auth1.dns.cogentco.com.
auth2.dns.cogentco.com.
ext-ns1.columbia.edu. | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 4/0/4 | 4/0/4 | 4/0/1 | 4/0/5 | |||||||
| Response size (bytes) | OK | 246 | 246 | 174 | 234 | |||||||
| Response time (ms) | OK | 16 | 17 | 65 | 136 | |||||||
Responses for 1ga0z.dk2oa.columbia.edu/A
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 148 | 148 | 136 | 120 | |||||||
| Response time (ms) | OK | 31 | 32 | 77 | 145 | |||||||
Responses for columbia.edu/MX
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | MX |
10 mxa-00364e01.gslb.pphosted.com.
10 mxb-00364e01.gslb.pphosted.com. | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 2/0/1 | 2/0/1 | 2/0/1 | 2/0/1 | |||||||
| Response size (bytes) | OK | 144 | 144 | 144 | 116 | |||||||
| Response time (ms) | OK | 40 | 40 | 84 | 166 | |||||||
Responses for columbia.edu/CNAME
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 35 | 36 | 76 | 158 | |||||||
Responses for columbia.edu/NS
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | NS |
ns1.lse.ac.uk.
auth1.dns.cogentco.com.
auth2.dns.cogentco.com.
ext-ns1.columbia.edu. | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 4/0/4 | 4/0/4 | 4/0/1 | 4/0/5 | |||||||
| Response size (bytes) | OK | 246 | 246 | 174 | 234 | |||||||
| Response time (ms) | OK | 16 | 17 | 65 | 136 | |||||||
Responses for columbia.edu/CDS
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 36 | 36 | 76 | 158 | |||||||
Responses for columbia.edu/TXT
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | TXT |
"MS=ms32107722"
"MS=ms88535648"
"MS=ms94259742"
"rm_verify=cf192bfd71"
"wpe-verification=cssrsprod"
"wpe-verification=ncdpcolumbia"
"ZOOM_verify_H76gKGnfTfSjo0uBs3ATpw"
"ZOOM_verify_ZJlClnqsRTqo4L8EQGaPDg"
"ZOOM_verify__tMWR0IkQ5mSUFNi7PT0-A"
"ZOOM_verify_aIBp_UI9RA-_nAc54T9CiA"
"ZOOM_verify_ohdpGstzTlO2gNsWqnSiHQ"
"ca3-018df5b7d38b415fbe9c920d89e3e815"
"ca3-154a83c0e9b44fa094af06b7a8c9f489"
"apple-domain-verification=6W1ObUreaMieGziS"
"docusign=abbafadf-a495-4889-935f-5fdac37be903"
"docusign=f8b82e15-b287-46b9-9729-a7436d71c422"
"fastly-domain-delegation-columbia-323594-2020-12-07"
"fastly-domain-delegation-UzZdOKwpsuzDObCLhWK0-12292020"
"openai-domain-verification=dv-coLwtcZeuA8rWCUFNhz21TTz"
"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"
"google-site-verification=6m_FjnmBT3E6N2cHMf6NxPjSVoWbq4IcRYNlAKT1Dzw"
"google-site-verification=79W02b1NsvPOhVkXxG5gXzAXuxuYquPTXmx_l6KfRok"
"google-site-verification=B93x40FIZF4LI-5cayepjvuwU8ZodIQ09zIDG1gHtIc"
"intersight=f68fd98601fae5dcfd60cd38f9df964367f5e3ebe94f0cc148eec13f7e11d7e6"
"adobe-idp-site-verification=c4c82a5f2bf3cc3ee4ad2ee246c28e17ead150faf152556bc9ca5c068762b827"
"atlassian-domain-verification=3a/aVmiVzaMOzlhAodx3n7lmq1cDotGOHNI3ehzFLzgN7YLZEBEjnxaaqyMmLY9s"
"atlassian-domain-verification=TGY4izz2FIXsrTR48IJgpJMfixggF0xpHJ4TC91Ii5DqZYvIR3zflZ1zbdDNI3NN" | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 27/4/4 | 27/4/4 | 27/0/1 | 27/0/1 | |||||||
| Response size (bytes) | OK | 1859 | 1859 | 1682 | 1654 | |||||||
| Response time (ms) | OK | 49 | 64 | 165 | 167 | |||||||
Responses for columbia.edu/SOA
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | SOA |
ext-ns1.columbia.edu. hostmaster.columbia.edu. 91122 3600 1800 2419200 300 | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 1/4/4 | 1/4/4 | 1/0/1 | 1/0/4 | |||||||
| Response size (bytes) | OK | 265 | 265 | 96 | 168 | |||||||
| Response time (ms) | OK | 66 | 68 | 153 | 277 | |||||||
Responses for columbia.edu/NSEC3PARAM
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 42 | 43 | 86 | 193 | |||||||
Responses for columbia.edu/CDNSKEY
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 44 | 44 | 87 | 136 | |||||||
Responses for columbia.edu/A
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| columbia.edu | 3600 | A |
162.159.128.65
162.159.138.64 | OK | Y | Y | Y | Y | ||||
| RR count (Answer/Authority/Additional) | OK | 2/4/4 | 2/4/4 | 2/0/1 | 2/0/1 | |||||||
| Response size (bytes) | OK | 278 | 278 | 101 | 73 | |||||||
| Response time (ms) | OK | 15 | 17 | 66 | 129 | |||||||
Responses for columbia.edu/AAAA
| Name | TTL | Type | Data | Status | Returned by | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| auth1.dns.cogentco.com. (2001:550:1:a::d) | auth1.dns.cogentco.com. (66.28.0.14) | auth2.dns.cogentco.com. (2001:550:1:b::d) | auth2.dns.cogentco.com. (66.28.0.30) | ext-ns1.columbia.edu. (128.59.1.1) | ext-ns1.columbia.edu. (2001:18d8::35) | ext-ns1.columbia.edu. (2001:18d8:1::1:1) | ns1.lse.ac.uk. (158.143.96.8) | |||||
| RR count (Answer/Authority/Additional) | OK | 0/1/1 | 0/1/1 | 0/1/1 | 0/1/1 | |||||||
| Response size (bytes) | OK | 124 | 124 | 124 | 96 | |||||||
| Response time (ms) | OK | 53 | 53 | 102 | 134 | |||||||
