4.55 Rating by WebsiteTestingTool.com

columbia.edu was registered 3 decades 1 year ago. It has a alexa rank of #1,959 in the world. It is a domain having .edu extension. This site has a Google PageRank of 8/10. It is estimated worth of $ 5,690,520.00 and have a daily income of around $ 5,269.00. As no active threats were reported recently, columbia.edu is SAFE to browse.

Visit Website

Traffic Report

Daily Unique Visitors: 658,598
Daily Pageviews: 5,268,784

Estimated Valuation

Income Per Day: $ 5,269.00
Estimated Worth: $ 5,690,520.00

Search Engine Indexes

Google Indexed Pages: Not Applicable
Yahoo Indexed Pages: Not Applicable
Bing Indexed Pages: Not Applicable

Search Engine Backlinks

Google Backlinks: Not Applicable
Bing Backlinks: Not Applicable
Alexa BackLinks: Not Applicable

Safety Information

Google Safe Browsing: No Risk Issues
Siteadvisor Rating: No Risk Issues
WOT Trustworthiness: Excellent
WOT Privacy: Excellent
WOT Child Safety: Excellent

Website Ranks & Scores

Google Pagerank:
Alexa Rank: 1,959
PageSpeed Score: 68 ON 100
Domain Authority: ON 100
DMOZ Listing: No

Web Server Information

Hosted IP Address:

Hosted Country:

United States US

Location Latitude:


Location Longitude:


Social Engagement

Facebook Shares: 2,418
Facebook Likes: 4,613
Facebook Comments: 2,276
Twitter Count (Tweets): Not Applicable
Linkedin Shares: Not Applicable
Delicious Shares: Not Applicable
Google+: 579,975

Page Resources Breakdown

Homepage Links Analysis

Columbia University in the City of New York

Website Inpage Analysis

H1 Headings: 1 H2 Headings: 3
H3 Headings: 1 H4 Headings: Not Applicable
H5 Headings: Not Applicable H6 Headings: Not Applicable
Total IFRAMEs: 1 Total Images: 8
Google Adsense: Not Applicable Google Analytics: UA-18290390-1

Backlink History Chart

Referring Domains Discovery Chart

HTTP Header Analysis

Http-Version: 1.1
Status-Code: 200
Status: 200 OK
Date: Sat, 28 Nov 2015 15:45:55 GMT
Server: Apache
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Content-Encoding: gzip
Content-Length: 7340
Content-Type: text/html

Domain Information

Domain Registrar: EDUCASE
Registration Date: 1985-07-05 3 decades 1 year 3 months ago
Last Modified: 2012-12-13 3 years 10 months 1 day ago
Owner's E-Mail: noc@columbia.edu

Domain Nameserver Information

Host IP Address Country
ext-ns1.columbia.edu United States United States
dns2.itd.umich.edu United States United States
adns1.berkeley.edu United States United States
adns2.berkeley.edu United States United States
ns1.lse.ac.uk United Kingdom United Kingdom
sns-pb.isc.org United States United States

DNS Record Analysis

Host Type TTL Extra
columbia.edu A 3587 IP:
columbia.edu NS 3600 Target: dns2.itd.umich.edu
columbia.edu NS 3600 Target: sns-pb.isc.org
columbia.edu NS 3600 Target: adns2.berkeley.edu
columbia.edu NS 3600 Target: ns1.lse.ac.uk
columbia.edu NS 3600 Target: adns1.berkeley.edu
columbia.edu NS 3600 Target: ext-ns1.columbia.edu
columbia.edu SOA 3600 MNAME: ext-ns1.columbia.edu
RNAME: hostmaster.columbia.edu
Serial: 28588
Refresh: 3600
Retry: 1800
Expire: 2419200
columbia.edu MX 3600 Priority: 10
Target: mail-in.cc.columbia.edu
columbia.edu TXT 3600 TXT: v=spf1 ip4:
ip4: ip4:
ip4: ip4:
ip4: ~all
columbia.edu TXT 3600 TXT:
columbia.edu TXT 3600 TXT: MS=ms88535648
columbia.edu TXT 3600 TXT:
columbia.edu TXT 3600 TXT: MS=ms32107722
columbia.edu NAPTR 3600 Order: 1
Flags: s
Services: SIP+D2U
Replacement: _sip._udp.columbia.edu

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Alexa Traffic Rank

Alexa Search Engine Traffic

Full WHOIS Lookup

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Domain Name:

Columbia University
615 West
131st Street
CUIT - 5th Floor
New York, NY 10027

Administrative Contact:

Columbia University
Computer Operations
Columbia University
615 West 131st
CUIT - 5th Floor
New York, NY 10027
(212) 854-2652


Columbia University Hostmaster
615 West 131st Street
CUIT - 5th Floor
York, NY 10027


Domain record
activated: 05-Jul-1985
Domain record last updated:
Domain expires: 31-Jul-2016