Coursera.org Website Stats

coursera.org
(Updated 3446 days ago)
Domain : coursera.org
Domain Title : Coursera
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WRScore WRScore(beta) is calculated on the basis of pageviews, unique visitors and unique content. :
coursera.org Reviewed by WebRankStats on Dec 09 . Rating: Rating: 8.15 out of 10
Website IP : 23.21.57.253
Hosting Country : UNITED STATES

General Information

Meta Description : Take free online classes from 80+ top universities and organizations. Coursera is a social entrepreneurship company partnering with Stanford University, Yale University, Princeton University and others around the world to offer courses online for anyone t
Meta Keywords :
XML Sitemap :
Robots.txt :
Gzip Compress :
Text/HTML Ratio : 1.09%

Website Ranks

Alexa Rank : 962 visit Alexa
Compete Rank : 1761 visit Compete
Quantcast Rank : N/A visit Quantcast

Website Safety

McAfee SiteAdvisor : green visit SiteAdvisor
WOT : Trustworthy visit WOT

Pages Indexed

Google : 48,900 visit Google
Bing : 13 visit Bing

Sociometer

Facebook Likes : 0
Stumbleupon : 34
LinkedIn : 0

Server Analysis

IP Address : 23.21.57.253
Latitude : 39.0437
Longitude : -77.4875
Region : ASHBURN, VIRGINIA
Country : UNITED STATES

HTTP Header Analysis

HTTP Header reponses of coursera.org is the information we get when HTTP request sent to a server from connecting clients(e.g. chrome, firefox). When you input an address into your browser it sends a request to the server hosting the domain and the server responds. HTTP Header information is not directly displayed by normal web browsers like chrome, firefox etc.

HTTP/1.1 302 Moved Temporarily
Content-Type: text/html
Date: Tue, 09 Dec 2014 08:15:05 GMT
Location: https://www.coursera.org/
Server: nginx
Strict-Transport-Security: max-age=7776000
Content-Length: 154
Connection: Close

HTTP/1.1 200 OK
Cache-Control: private, no-cache, no-store, must-revalidate
Content-Type: text/html; charset=utf-8
Set-Cookie: __204u=5752102168-1418112906242; Expires=Wed, 09 Dec 2015 09:15:06 CET; Path=/; Domain=.coursera.org
Strict-Transport-Security: max-age=31536000
X-Coursera-Request-Id: e8jPFH97EeS5hSIAC4QXlw
X-Frame-Options: SAMEORIGIN
Content-Length: 29820
Connection: Close

DNS Record Analysis

There are total 19 records in domain name system (DNS) of coursera.org, which includes 1 Address(A) record, 7 Mail Exchange(MX) records, 4 Name Server(NS) records, 1 Start of Authority(SOA) record and 6 Text(TXT) records.

Host Name of the node to which this record pertains Type Type of resource record in symbolic representation. IP/Target TTL Count of seconds that the resource record stays valid. Extra Info Additional resource record-specific data
coursera.org A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101. 23.23.161.149 59
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. alt2.aspmx.l.google.com 300 pri: 20
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. aspmx3.googlemail.com 300 pri: 30
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. aspmx4.googlemail.com 300 pri: 30
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. aspmx5.googlemail.com 300 pri: 30
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. alt1.aspmx.l.google.com 300 pri: 20
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. aspmx2.googlemail.com 300 pri: 30
coursera.org MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain. aspmx.l.google.com 300 pri: 10
coursera.org NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers. ns-1590.awsdns-06.co.uk 172800
coursera.org NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers. ns-258.awsdns-32.com 172800
coursera.org NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers. ns-1481.awsdns-57.org 172800
coursera.org NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers. ns-688.awsdns-22.net 172800
coursera.org SOA Start of Authority Record: Specifies authoritative information about a DNS zone, including the primary name server, the email of the domain administrator, the domain serial number, and several timers relating to refreshing the zone. 900 mname: ns-1590.awsdns-06.co.uk
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: spf2.0/pra include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.mtasv.net ?all
entries: Array
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: v=spf1 include:sendgrid.net ip4:24.6.102.21 ip4:54.83.204.127 ip4:50.16.53.44 include:_spf.google.com include:amazonses.com include:spf.mtasv.net -all
entries: Array
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: google-site-verification=tbpsWy5oBEvo-Kod36Lqsb3qRK0h_divcCGAeUdVZlk
entries: Array
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: google-site-verification=ONopSoJaJ3YHb8DMV8LLjggLkDQ7DAJUiKgGo2lvg4Eg
entries: Array
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: google-site-verification=61uiBFuqY-MYJHWt_8qbU00Rsn7Nq_njU5eMUG0NlrY
entries: Array
coursera.org TXT Text Record: Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD. 300 txt: google-site-verification=l-IugqqOHDGlHpUHfv3e6z8J1koLgfGSem04lqBA_B8
entries: Array

Traffic Graphs

Alexa Graph