Columbia.edu Columbia University in the City of New York

Columbia.edu Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 1.09 sec.

Last Checked: 04/27/2024

Columbia.edu traffic estimate is about 81,828 unique visitors and 249,575 pageviews per day. The approximated value of columbia.edu is 3,285,000 USD. Every unique visitor makes about 3.05 pageviews on average.

Alexa Traffic Rank estimates that columbia.edu is ranked number 263 in the world, while most of its traffic comes from United States, where it occupies as high as 850 place.

It’s good for columbia.edu that their hosting company COLUMBIA-GW - Columbia University, US is located in United States, as that provides the majority of their visitors to benefit from the faster page load time. See the list of other websites hosted by COLUMBIA-GW - Columbia University, US.

Columbia.edu is registered under .EDU top-level domain. Check other websites in .EDU zone.

During the last check (November 28, 2019) columbia.edu has an expired SSL certificate issued by Internet2 (expired on January 19, 2020), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by Internet2.

In accordance with our information columbia.edu is a suspicious domain.

Relying on Google Mobile-Friendly test columbia.edu is well optimized for mobile and tablet devices.

Columbia.edu General Information

Columbia.edu Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors
United States US	55.1%
India IN	10.6%
Japan JP	3.1%
Canada CA	2.5%
Pakistan PK	1.6%
Nigeria NG	1.6%
Brazil BR	1.4%
United Kingdom GB	1.3%
Australia AU	1.2%
Other	21.7%

Country	Rank
United States US	850
Tanzania TZ	995
Singapore SG	1402
Philippines PH	2270
Nigeria NG	2454
Pakistan PK	2789
United Arab Emirates AE	2880
Canada CA	2902
India IN	2981
Switzerland CH	3631
Australia AU	4326
United Kingdom GB	4743

Columbia.edu Traffic Distribution

Where do visitors go on columbia.edu?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews
courseworks2.columbia.edu	27.55%
gsb.columbia.edu	8.04%
columbia.edu	7.55%
ldeo.columbia.edu	5.32%
cas.columbia.edu	4.48%
cul.columbia.edu	4.16%
sps.columbia.edu	2.97%
law.columbia.edu	2.74%
cs.columbia.edu	1.61%
other	35.6%

Subdomain	Views per User
ldeo.columbia.edu	10
courseworks2.columbia.edu	10
cul.columbia.edu	7.5
sps.columbia.edu	4.2
opportunities.columbia.edu	4
finaid.columbia.edu	4
enterprise.columbia.edu	4
health.columbia.edu	4
gs.columbia.edu	3.4
registrar.columbia.edu	3
other	1.6

Subdomain	Reach
columbia.edu	17.19%
cas.columbia.edu	13.78%
gsb.columbia.edu	11%
courseworks2.columbia.edu	8.9%
law.columbia.edu	4.47%
math.columbia.edu	3.56%
cs.columbia.edu	3.27%
stat.columbia.edu	2.9%
tc.columbia.edu	2.85%
sps.columbia.edu	2.39%
other	51.84%

Columbia.edu Popularity

How popular is columbia.edu?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	2726	237
past month	2869	154
past week	2729	-360
yesterday	2289	-199

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	3362	554	166	-12.66%	3.05	-7.012%
30	3394	-79	167	7%	3.3	10%
7	3323	-984	173	29%	3.3	20%
1	2805	-393	21	10%	3.5	4%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	2798	173	216	-6.076%
30	2971	200	205	-5.508%
7	2859	-170	210	5%
1	2429	-163	260	7%

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Columbia.edu Safety Information

Rankchart Summary

Not Safe

Updated: 04/27/2024

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 02/01/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Not Safe

Updated: 01/29/2019

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 08/11/2020

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/22/2021

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McAfee assesses columbia.edu for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze columbia.edu for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/09/2019

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The WOT calculates reputation of the columbia.edu. This reputation system receives ratings from users and information from third-party sources, assesses the columbia.edu for safety features and confirms, whether columbia.edu is suitable for children.

Columbia.edu SSL Information

Information about SSL/TLS certificates

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Domain	columbia.edu
Issuer Organization	Internet2
Issuer	InCommon RSA Server CA
Algorithm	RSA-SHA256
Valid form	01/19/2018
Expiration	01/19/2020
Signed	Certificate is not self signed
Additional Domains	columbia.edu *.columbia.edu

SSL Checker

Columbia.edu Server Information

Columbia.edu Server Location

Where website hosting server is located?

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Columbia.edu ASN Information

Information about IP address owner

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ASN ID: 14

ASN Title: COLUMBIA-GW - Columbia University, US

Updated: 09/25/2023

Raw ASN data:

Geolocation

ASN Lookup

Columbia.edu Domain Name Information

Columbia.edu DNS Information

Domain name service records

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A
MX
NS
TXT
SOA

Host	A Record	TTL
columbia.edu	128.59.105.24	3600

Host	MX Record	Priority	TTL
columbia.edu	mail-in.cc.l.columbia.edu	10	3600

Host	NS Record	TTL
columbia.edu	sns-pb.isc.org	3600
columbia.edu	dns2.itd.umich.edu	3600
columbia.edu	ns1.lse.ac.uk	3600
columbia.edu	ext-ns1.columbia.edu	3600
columbia.edu	sdns1.berkeley.edu	3600

Host	TXT Record	TTL
columbia.edu	v=spf1 ip4:128.59.72.0/24 ip4:207.10.139.0/24 ip4:128.59.213.250 ip4:192.5.43.19 ip4:128.59.176.35 ip4:128.59.176.141 ~all	3600
columbia.edu	google-site-verification=79W02b1NsvPOhVkXxG5gXzAXuxuYquPTXmx_l6KfRok	3600
columbia.edu	docusign=abbafadf-a495-4889-935f-5fdac37be903	3600
columbia.edu	docusign=f8b82e15-b287-46b9-9729-a7436d71c422	3600
columbia.edu	adobe-idp-site-verification=c4c82a5f2bf3cc3ee4ad2ee246c28e17ead150faf152556bc9ca5c068762b827	3600
columbia.edu	MS=ms88535648	3600
columbia.edu	google-site-verification=B93x40FIZF4LI-5cayepjvuwU8ZodIQ09zIDG1gHtIc	3600
columbia.edu	MS=ms32107722	3600

Columbia.edu Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Columbia.edu HTML Validation

Columbia.edu W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.

Duplicate ID “alerts”.

Attribute “ng-class” not allowed on element “div” at this point.

Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)

Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Attribute “hover-intent-out” not allowed on element “nav” at this point.

Attribute “hover-intent-delay” not allowed on element “nav” at this point.

Attribute “ng-if” not allowed on element “div” at this point.

Attribute “hover-intent” not allowed on element “a” at this point.

Attribute “hover-intent-delay” not allowed on element “a” at this point.

Attribute “ng-style” not allowed on element “div” at this point.

Attribute “ng-cloak” not allowed on element “div” at this point.

Attribute “autoscroll” not allowed on element “section” at this point.

Attribute “ng-controller” not allowed on element “div” at this point.

Attribute “ng-swipe-left” not allowed on element “div” at this point.

Attribute “ng-swipe-right” not allowed on element “div” at this point.

Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)

Attribute “ng-click” not allowed on element “a” at this point.

Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Bad value “{{ item.link | unAmp }}” for attribute “href” on element “a”: Illegal character in path segment: “{” is not allowed.

Bad value “highlights-cell-{{ $parent.$index }}-{{ $index }}-label” for attribute “id” on element “h3”: An ID must not contain whitespace.

Bad value “highlights-cell-{{ $parent.$index }}-{{ $index }}-text” for attribute “id” on element “div”: An ID must not contain whitespace.

Attribute “events-feed” not allowed on element “div” at this point.

Element “div” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)

Attribute “ng-switch” not allowed on element “li” at this point.

Attribute “on” not allowed on element “li” at this point.

Attribute “ng-switch-when” not allowed on element “span” at this point.

Attribute “ng-switch-default” not allowed on element “a” at this point.

The “aria-labelledby” attribute must point to an element in the same document.

The “aria-describedby” attribute must point to an element in the same document.

Warnings:

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

The first occurrence of ID “alerts” was here.

The “banner” role is unnecessary for element “header”.

The “navigation” role is unnecessary for element “nav”.

The “main” role is unnecessary for element “main”.

The “article” role is unnecessary for element “article”.

Empty heading.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

The “type” attribute is unnecessary for JavaScript resources.

HTML Validator

Columbia.edu Desktop Performance

How Well Columbia.edu Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

47%

Optimize images

Enable compression

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Avoid landing page redirects

Prioritize visible content

Leverage browser caching

Minify JavaScript

Minify HTML

Updated: 06/15/2018

Columbia.edu Mobile Performance

How Optimized Is Columbia.edu for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

100%

Updated: 06/12/2016

Columbia.edu Nearest Competitors

Estimated Nearest Competitors Of Columbia.edu

stripe.com
mckinsey.com
discord.com
huffpost.com
businesswire.com
economist.com
change.org
statcounter.com
weforum.org
youronlinechoices.com
c******a.edu
eepurl.com
pbs.org
arxiv.org
usnews.com
web.whatsapp.com
mdpi.com
ieee.org
outlook.office.com
academia.edu
translate.google.com
umich.edu

Columbia.edu URL Typos

Most common user URL mistypes for columbia.edu

www.columbia.com
www.columbia.net
www.columbia.org
www.columbia.info
www.columbia.biz
www.columbia.us
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www.olumbia.edu
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www.xolumbia.edu
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www.dolumbia.edu
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www.columbiaz.edu
www.columbiza.edu

Total Resources	91
Number of Hosts	15
Static Resources	22
JavaScript Resources	22
CSS Resources	5

Text	112.9 KBytes
CSS	726.3 KBytes
Images	3.1 MBytes
HTML	222.1 KBytes
JavaScript	3.0 MBytes
Other	237.3 KBytes

Total Resources	13
Number of Hosts	4
Static Resources	9
JavaScript Resources	4
CSS Resources	2

CSS	63.3 KBytes
Images	19.0 KBytes
HTML	3.2 KBytes
JavaScript	213.8 KBytes
Other	638.0 Bytes