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Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 09/16/2019

Coursera.org traffic estimate is about 250,406 unique visitors and 901,462 pageviews per day. The approximated value of coursera.org is 11,839,140 USD. Every unique visitor makes about 3.6 pageviews on average.

Alexa Traffic Rank estimates that coursera.org is ranked number 436 in the world, while most of its traffic comes from India, where it occupies as high as 280 place.

We recommend moving coursera.org server from United States to India, as it will speed up coursera.org page load time for the majority of their users.

During the last check (July 04, 2019) coursera.org has a valid and up-to-date SSL certificate that expires on October 21, 2019, please click the “Refresh” button for SSL Information at the Safety Information section.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust coursera.org is pretty a safe domain.

Relying on Google Mobile-Friendly test coursera.org is well optimized for mobile and tablet devices, however website page loading time may be improved.

Global Rank
755
Average Load Time
3.59sec
Links In Count
2,848
Website Value
$11.8 M
Overview
Last Updated: 09/23/2019
Overall result - "coursera.org" is SAFE.
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
Last Updated: 01/12/2019
NCS "coursera.org" OK.

Norton ConnectSafe evaluates coursera.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 10/10/2016
GSS "coursera.org" OK.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing
Last Updated: 02/18/2019
Malware not found at "coursera.org".
"coursera.org" is not a phishing page.
"coursera.org" does not install unwanted software.
"coursera.org" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 01/09/2019
SA "coursera.org" OK.

McAfee assesses coursera.org 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 coursera.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
WOT "coursera.org" VERY GOOD.

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


SSL Information
Domain coursera.org
Issuer Amazon
Algorithm RSA-SHA256
Valid form 09/21/2018
Expiration 10/21/2019
Signed Certificate is not self signed
Additional Domains coursera.org
*.coursera.org
Server Location

ASN Information

ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 05/29/2019

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

WHOIS

Domain Name: COURSERA.ORG
Registry Domain ID: D164365199-LROR
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.whois.godaddy.com
Updated Date: 2013-07-02T20:07:35Z
Creation Date: 2012-01-12T01:57:48Z
Registry Expiry Date: 2023-01-12T01:57:48Z
Registrar Registration Expiration Date:
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Reseller:
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registrant Organization: Coursera Inc
Registrant State/Province: California
Registrant Country: US
Name Server: NS-1481.AWSDNS-57.ORG
Name Server: NS-1590.AWSDNS-06.CO.UK
Name Server: NS-258.AWSDNS-32.COM
Name Server: NS-688.AWSDNS-22.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2018-11-08T12:44:27Z


DNS Records
HostA RecordTTL
coursera.org13.33.231.9060
coursera.org13.33.231.4760
coursera.org13.33.231.1360
coursera.org13.33.231.5860
HostMX RecordPriorityTTL
coursera.orgaspmx.l.google.com10300
coursera.orgalt1.aspmx.l.google.com20300
coursera.orgalt2.aspmx.l.google.com20300
coursera.orgaspmx2.googlemail.com30300
coursera.orgaspmx3.googlemail.com30300
coursera.orgaspmx4.googlemail.com30300
coursera.orgaspmx5.googlemail.com30300
HostNS RecordTTL
coursera.orgns-1481.awsdns-57.org172800
coursera.orgns-1590.awsdns-06.co.uk172800
coursera.orgns-258.awsdns-32.com172800
coursera.orgns-688.awsdns-22.net172800
HostTXT RecordTTL
coursera.org376174617-1005669460
coursera.orgMS=ms9165742160
coursera.orgatlassian-domain-verification=OwoxnU5JeeEeNB3PXqTmPOsZNFUYTd05tar4PX8ZNNjps+mMWto+OyyA/50W5+B160
coursera.orgatlassian-domain-verification=pwnyCbGEmC6E08lYJGO/SYkQvbjFS+OXy03eVMG75U52Edj0vbZGBjdaorxh+PUE60
coursera.orgdocusign=05d7ee1b-a029-4b94-912a-25bb3c4a2bed60
coursera.orggoogle-site-verification=61uiBFuqY-MYJHWt_8qbU00Rsn7Nq_njU5eMUG0NlrY60
coursera.orggoogle-site-verification=874wxzrE4FAJO81XTCXyH6WYnWZAMdlbMRXI3lfI0bw60
coursera.orggoogle-site-verification=UGpuPtZLCcMKFmgAeN4q6EbvxJn56A8Jz0sgW3yVKmA60
coursera.orggoogle-site-verification=l-IugqqOHDGlHpUHfv3e6z8J1koLgfGSem04lqBA_B860
coursera.orggoogle-site-verification=tbpsWy5oBEvo-Kod36Lqsb3qRK0h_divcCGAeUdVZlk60
coursera.orgspf2.0/pra include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.mtasv.net -all60
coursera.orgv=spf1 include:sendgrid.net ip4:24.6.102.21 ip4:54.83.204.127 ip4:50.16.53.44 include:_spf.google.com include:mail.focal360.com include:amazonses.com include:spf.mtasv.net -all60

ns-1590.awsdns-06.co.uk
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400


Errors
Warnings

Last tested: 06/12/2016

Desktop
Desktop Speed
74%

Desktop Resource Breakdown
Total Resources127
Number of Hosts14
Static Resources110
JavaScript Resources48
CSS Resources3

Last tested: 01/31/2018

Mobile
Mobile Usability
95%
Mobile Speed
53%

Mobile Resource Breakdown
Total Resources132
Number of Hosts28
Static Resources84
JavaScript Resources27
CSS Resources1
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