business.columbia.edu
Columbia Business School | Columbia Business School
Last update: . business.columbia.edu is a safe website about "Columbia Business School Columbia Business School in University category. The server is running at 162.159.138.64 ip address and there is a secure connection certificate between the website and the visitor. When we did a security search, no viruses or spam were detected on web page. The similar & alternative web sites to business.columbia.edu.
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⏰ Status: Business columbia edu- is Down?
From the table below, you can track the service conditions that we have periodically check in relation to the interruptions.
| Date | Server Status | Speed |
|---|---|---|
| 2024-09-10 07:53:03 | Online | 0.0490 Second |
| 2024-09-09 13:53:03 | Online | 0.0353 Second |
| 2024-09-08 19:54:02 | Online | 0.0644 Second |
| 2024-09-08 01:55:02 | Online | 0.0487 Second |
| 2024-09-07 07:56:08 | Online | 0.0343 Second |
| 2024-09-06 13:54:03 | Online | 0.0342 Second |
| 2024-09-05 19:55:03 | Online | 0.0363 Second |
| 2024-09-05 01:56:03 | Online | 0.0446 Second |
| 2024-09-04 07:57:03 | Online | 0.0344 Second |
| 2024-09-03 13:58:03 | Online | 0.0567 Second |
| 2024-09-02 19:59:03 | Online | 0.0525 Second |
| 2024-09-02 00:22:02 | Online | 0.0299 Second |
| 2024-09-01 06:23:04 | Online | 0.0438 Second |
| 2024-08-31 12:22:03 | Online | 0.1263 Second |
| 2024-08-30 18:23:04 | Online | 0.0684 Second |
| 2024-08-30 00:23:03 | Online | 0.0490 Second |
| 2024-08-29 06:24:03 | Online | 0.0489 Second |
| 2024-08-28 12:25:03 | Online | 0.0594 Second |
| 2024-08-27 18:26:03 | Online | 0.0603 Second |
| 2024-08-27 00:27:02 | Online | 0.0414 Second |
Known Searchs
shai davidai 13Kcolumbia business school 6K
columbia mba 3K
columbia business school course catalog 846.7
columbia business school academic calendar 711.5
☁ Content Metrics
- business 6%
- columbia 6%
- edu 6%
- security 4%
- Verifying 2%
- you 2%
- are 2%
- human 2%
- This 2%
- may 2%
- take 2%
- few 2%
- seconds 2%
- needs 2%
- review 2%
- the 2%
- your 2%
- connection 2%
- before 2%
- proceeding 2%
- %
Website raw text content tells search engines what your web page content is about. The word usage rate is very important and the frequency of words used above 4% is perceived as spam.
☯ Technology Analysis
Crazy Egg
Facebook
Google Analytics
Google Tag Manager
Linkedin Insight Tag
Typekit
☂ Security Analytics
- ✔ 0xSI_f33d
- ✔ ADMINUSLabs
- ✔ AILabs (MONITORAPP)
- ✔ Abusix
- ✔ Acronis
- ✔ AlienVault
- ✔ AlphaSOC
- ✔ Antiy-AVL
- ✔ ArcSight Threat Intelligence
- ✔ Artists Against 419
- ✔ AutoShun
- ✔ Avira
- ✔ Bfore.Ai PreCrime
- ✔ BitDefender
- ✔ Bkav
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- ✔ Criminal IP
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- ✔ ESET
- ✔ ESTsecurity
- ✔ EmergingThreats
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- ✔ Ermes
- ✔ Feodo Tracker
- ✔ Forcepoint ThreatSeeker
- ✔ Fortinet
- ✔ G-Data
- ✔ Google Safebrowsing
- ✔ GreenSnow
- ✔ Heimdal Security
- ✔ IPsum
- ✔ Juniper Networks
- ✔ K7AntiVirus
- ✔ Kaspersky
- ✔ Lionic
- ✔ Lumu
- ✔ MalwarePatrol
- ✔ MalwareURL
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- ✔ Snort IP sample list
- ✔ Sophos
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- ✔ StopForumSpam
- ✔ Sucuri SiteCheck
- ✔ ThreatHive
- ✔ Threatsourcing
- ✔ Trustwave
- ✔ URLQuery
- ✔ URLhaus
- ✔ VIPRE
- ✔ VX Vault
- ✔ Viettel Threat Intelligence
- ✔ ViriBack
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- ✔ Yandex Safebrowsing
- ✔ ZeroCERT
- ✔ alphaMountain.ai
- ✔ benkow.cc
- ✔ desenmascara.me
- ✔ malwares.com URL checker
- ✔ securolytics
✇ DNS Records
| Record | TLL | Value |
|---|---|---|
| A | 299 | 162.159.128.65 |
| A | 299 | 162.159.138.64 |
| NS | 293 | auth2.dns.cogentco.com |
| NS | 293 | auth4.dns.cogentco.com |
| NS | 293 | ns1.lse.ac.uk |
| NS | 293 | ext-ns1.columbia.edu |
| NS | 293 | auth5.dns.cogentco.com |
| NS | 293 | auth1.dns.cogentco.com |
| TXT | 2276 | ZOOM_verify_aIBp_UI9RA-_nAc54T9CiA |
| TXT | 2276 | atlassian-domain-verification=TGY4izz2FIXsrTR48IJgpJMfixggF0xpHJ4TC91Ii5DqZYvIR3zflZ1zbdDNI3NN |
| TXT | 2276 | v=spf1 ip4:128.59.72.0/24 ip4:207.10.139.0/24 ip4:148.163.139.74 ip4:148.163.135.74 include:_spf.google.com include:spf-00364e02.pphosted.com include:spf.protection.outlook.com ~all |
| TXT | 2276 | ca3-154a83c0e9b44fa094af06b7a8c9f489 |
| TXT | 2276 | google-site-verification=B93x40FIZF4LI-5cayepjvuwU8ZodIQ09zIDG1gHtIc |
| TXT | 2276 | google-site-verification=6m_FjnmBT3E6N2cHMf6NxPjSVoWbq4IcRYNlAKT1Dzw |
| TXT | 2276 | MS=ms32107722 |
| TXT | 2276 | ZOOM_verify__tMWR0IkQ5mSUFNi7PT0-A |
| TXT | 2276 | MS=ms94259742 |
| TXT | 2276 | fastly-domain-delegation-UzZdOKwpsuzDObCLhWK0-12292020 |
| TXT | 2276 | ZOOM_verify_ZJlClnqsRTqo4L8EQGaPDg |
| TXT | 2276 | wpe-verification=ncdpcolumbia |
| TXT | 2276 | ca3-018df5b7d38b415fbe9c920d89e3e815 |
| TXT | 2276 | intersight=f68fd98601fae5dcfd60cd38f9df964367f5e3ebe94f0cc148eec13f7e11d7e6 |
| TXT | 2276 | ZOOM_verify_ohdpGstzTlO2gNsWqnSiHQ |
| TXT | 2276 | wpe-verification=cssrsprod |
| TXT | 2276 | rm_verify=cf192bfd71 |
| TXT | 2276 | docusign=abbafadf-a495-4889-935f-5fdac37be903 |
| TXT | 2276 | ZOOM_verify_H76gKGnfTfSjo0uBs3ATpw |
| TXT | 2276 | fastly-domain-delegation-columbia-323594-2020-12-07 |
| TXT | 2276 | openai-domain-verification=dv-coLwtcZeuA8rWCUFNhz21TTz |
| TXT | 2276 | MS=ms88535648 |
| TXT | 2276 | google-site-verification=79W02b1NsvPOhVkXxG5gXzAXuxuYquPTXmx_l6KfRok |
| TXT | 2276 | apple-domain-verification=6W1ObUreaMieGziS |
| TXT | 2276 | adobe-idp-site-verification=c4c82a5f2bf3cc3ee4ad2ee246c28e17ead150faf152556bc9ca5c068762b827 |
| TXT | 2276 | docusign=f8b82e15-b287-46b9-9729-a7436d71c422 |
| MX | 1286 | mxb-00364e01.gslb.pphosted.com |
| MX | 1286 | mxa-00364e01.gslb.pphosted.com |
| SOA | 3206 | ext-ns1.columbia.edu hostmaster.columbia.edu |
ℹ Whois Records
Domain Name: COLUMBIA.EDU
Registrant:
Columbia University
615 West 131st Street
CUIT - 5th Floor
New York, NY 10027
USA
Administrative Contact:
Domain Admin
Columbia University
615 West 131st Street
CUIT - 5th Floor
New York, NY 10027
USA
+1.2128541919
noc✉columbia.edu
Technical Contact:
Columbia University
615 West 131st Street
CUIT - 5th Floor
New York, NY 10027
USA
+1.2128541919
hostmaster✉columbia.edu
Name Servers:
NS1.LSE.AC.UK
AUTH1.DNS.COGENTCO.COM
AUTH5.DNS.COGENTCO.COM
EXT-NS1.COLUMBIA.EDU
AUTH2.DNS.COGENTCO.COM
AUTH4.DNS.COGENTCO.COM
Domain record activated: 05-Jul-1985
Domain record last updated: 10-Apr-2024
Domain expires: 31-Jul-2024
☰ Http Headers
| date | tue, 14 may 2024 17 |
|---|---|
| content-type | text/html; charset=utf-8 |
| content-language | en |
| expires | sun, 19 nov 1978 05 |
| last-modified | tue, 14 may 2024 17 |
| vary | x-bin |
| x-adv-varnish | cache-enabled |
| x-content-type-options | nosniff |
| x-deflate-key | b91f02cf5af93c1c9141ba365d5852c9d12df6fd39f8b5d9c3b80dc1bc1428e1 |
| x-drupal-dynamic-cache | hit |
| x-frame-options | sameorigin |
| x-generator | drupal 10 (https |
| x-tag | 1k2y 1kb0 1kae 1k5z 1k7k 1k7q 1k8u 1k7e 1k83 1kcq 1k9o 1kbj 1c4oo 1k6q 3ui 1k8b 3uj 1k87 1kch 1k5f 1kk0 1k5s 1k9j 1kep 1k8q 1k8o 1kds 1k8u 1k7u 1k8w 1k8w 1kab 1k4l 1k3z 1k60 1k4s 1kau 1kf8 1khx 1kdy 1kcp 1kby 1kfs 1kda 1kbl 1kdp 1k7u 1khv 1k9y 1kdw 1kcp 1k5w 1kfe 1kee 1k7g 1k9l 1kfe 1kdw 1knh 1kj9 1kbc 1kha 1kae 1k8s 1k9r 1kao 1kc1 1k8z 1keq 1kbg 1kcs 1k7x 1k8f 1k7c 1k7v 1k5y 1k8e 1kbn 1k4r 1k50 1kao 1kad 1k9r 1k7n 1b0 1k5q 1kas 1k7z 1k7r 1k9e 1k9p 1k3w 1k3p 1k5j 1k5x 1k4k 1k3b 1k8t 1k9q 1kdd 1k5x 1k4u 1k5v 1k9g 1k4n 1kdc 1kbj 1k5x 1kcc 1kbt 1k4q 2x 5r 1k6t 2j 4e 2h3do 1k68 2h3dm 1k6l 2h3dn 2h45t 2h4qr 2h4qp 166ek 2h4qo 166ej 2h4qq 167hn 2h3d2 2h45s 2h3d1 2h3d0 2h3cz 2h3cy 2h4qq 2h4qx 2h54h 2h54g 166gy 2h5dg 2h5df 2h5de 167mx 2h4qw 2h5ez 2h54f 2h54e 167oq 2h55z 2h55v 2h55u 167pk 2h562 2h5cy 2h561 167px 2h5ce 2h5cc 2h5cb 2h5cq 167u0 2p 1keq 1k8g 1kam 1k9p 1kbu 1kbn 1kbw 1kbe 1kah 1kcs 1kcl 1kab 1ka4 1kci 1kbl 1k57 1bl1 1k3w 2l 1k3n 4z 1k6v |
| x-ttl | 21600 |
| age | 2394 |
| x-grace | 21600.000 |
| x-varnish-cache | hit (135) |
| x-cache-control | max-age=21600, public |
| cache-control | no-store,no-cache,private |
| cf-cache-status | dynamic |
| set-cookie | __cf_bm=0ixpt5rmkv8ctj14qmj9lpq3jsoedxpgnujtgerdits-1715708939-1.0.1.1-i2gq9xo2.vib77mel9pyprhy8dxhx012uew.szlfmrgaisedbujksxwcku8abimvy47k5a155qqc6.bmv5refw; path=/; expires=tue, 14-may-24 18 |
| server | cloudflare |
| cf-ray | 883cb8e73c697140-sof |
| content-encoding | gzip |
✔ Indexing
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used: http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html
User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
⚔ SSL Analytics
| Subject | CN = columbia.edu |
|---|---|
| Issuer | C = US, O = Google Trust Services LLC, CN = GTS CA 1P5 |
| Version | 2 |
| Serial Number | bdacb77e6fc08ee60ebf0e4965e746b7 |
| Signature Algorithm | sha256WithRSAEncryption |
| Public Key Algorithm | rsaEncryption |
| Key Usage | Digital Signature, Key Encipherment |
| Extended Key Usage | TLS Web Server Authentication |
| Basic Constraints | CA:FALSE |
| Subject Key Identifier | A5:F7:77:B3:87:8E:17:D0:D4:08:D5:DB:9C:E8:47:0C:B6:BC:A8:9B |
| Authority Key Identifier | D5:FC:9E:0D:DF:1E:CA:DD:08:97:97:6E:2B:C5:5F:C5:2B:F5:EC:B8 |
| Authority Information Access | OCSP - URI:http://ocsp.pki.goog/s/gts1p5/pLK_ONeyNPo CA Issuers - URI:http://pki.goog/repo/certs/gts1p5.der |
| Subject Alternative Name | DNS:columbia.edu, DNS:*.drupal7-test.cc.columbia.edu, DNS:*.drupalcustom-dev.cc.columbia.edu, DNS:*.columbia.edu, DNS:*.alumni.columbia.edu, DNS:*.arch.columbia.edu, DNS:*.zi.columbia.edu, DNS:*.global.columbia.edu, DNS:*.ias-deprecated-test.cc.columbia.edu, DNS:*.ias-drupal6-dev.cc.columbia.edu, DNS:*.ias-drupal7-dev.cc.columbia.edu, DNS:*.ias-deprecated-dev.cc.columbia.edu, DNS:*.worklife.columbia.edu, DNS:*.site.drupal8test.cc.columbia.edu, DNS:*.site.drupaldistdev.cc.columbia.edu, DNS:*.business.columbia.edu, DNS:*.cancerdynamics.columbia.edu, DNS:*.drupalcustom-test.cc.columbia.edu, DNS:*.drupal-dev.business.columbia.edu, DNS:*.drupal-test.business.columbia.edu, DNS:*.drupal7-dev.cc.columbia.edu, DNS:*.lamptest.columbia.edu, DNS:*.reopencu.covid19.columbia.edu, DNS:*.site.drupal8dev.cc.columbia.edu, DNS:*.sociology.columbia.edu, DNS:*.udev.degreeaudit.sis.columbia.edu, DNS:*.blog.cup.columbia.edu, DNS:*.careers.columbia.edu, DNS:*.climate.columbia.edu, DNS:*.cup.columbia.edu, DNS:*.curp.columbia.edu |
| Certificate Policies | Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.11129.2.5.3 |
| CRL Distribution Points | Full Name: URI:http://crls.pki.goog/gts1p5/ZeGZYoa3f6s.crl |
| CT Precertificate SCTs | Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34: B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74 Timestamp : May 8 04:28:42.037 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:1B:88:C4:D7:2C:67:01:AB:8F:2F:7A:64: AC:D9:E8:51:E8:83:FF:E1:F5:1A:29:E1:24:EB:DE:07: 50:98:ED:9B:02:20:4E:E9:7F:A3:5E:80:CB:54:8C:1A: 94:35:1C:79:5B:E0:2C:DE:F3:E2:42:63:93:78:58:4A: 81:8F:39:97:80:C8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12: ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E Timestamp : May 8 04:28:42.040 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:18:9B:5E:09:16:03:A1:FF:5C:FA:AE:9C: 08:A7:20:D1:B1:9C:BB:50:2F:1A:A5:FF:A5:8B:EF:AB: F1:AD:6F:29:02:21:00:C8:BC:31:38:3C:9C:0B:9C:C3: 15:D6:25:A0:10:8F:76:0D:83:85:00:CF:B6:75:49:E4: 65:67:24:2B:4C:16:AF |
| Start date | May 8 03:28:40 2024 GMT |
| Expire date | Aug 6 04:25:55 2024 GMT |
| RSA Public Key | 2048 |
| rsa(n) |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|
| rsa(e) | 10001 |
| Signature | 3b:c3:47:83:65:90:a1:2b:0a:5f:61:e4:8b:f9:b5:99:f1:f3:58:db:e8:97:18:84:be:fc:1c:61:63:23:5b:7e:c8:2d:41:45:c2:cf:e1:9a:35:f8:a6:42:af:83:65:ed:4b:2e:f2:b3:df:31:96:4c:ed:b4:db:77:7f:3a:bf:11:45:be:c6:bb:2d:3c:d8:ae:0f:ac:a7:b7:07:ae:9a:03:8c:e0:9d:78:d4:ea:7d:d9:bb:5e:7e:fb:51:2d:fa:05:a8:83:74:59:74:e4:79:1b:04:19:c6:b2:7c:8b:2c:f4:b2:62:70:a2:d4:2e:1e:aa:2c:e7:bf:fd:3f:32:cb:e0:fb:06:fd:82:fc:06:90:ca:b9:9d:c8:14:d1:17:b8:cb:28:3f:a8:e5:bc:b0:cc:5d:87:32:5b:30:f3:38:0c:6b:bb:8c:d3:7a:b4:95:bb:14:45:dc:dc:ad:09:04:f5:7f:8b:07:1c:90:e7:9b:35:ae:9e:9c:7c:01:64:70:96:50:24:af:5d:24:cc:0b:8c:64:fe:97:0d:08:aa:68:c7:51:16:bb:69:2d:16:10:27:1d:b4:d2:53:6a:79:1a:79:28:72:9c:23:39:6b:ed:a0:51:f6:0b:3c:98:f4:99:f9:a9:d6:40:b4:d5:c6:f9:96:e4:09:c7:93:c6:e5:f7:c2:91: |