code.org Website Review

code.org - Basic Information

Domain Age:
17 years 2 months
Archive.org First Cached:
robots.txt:
XML Sitemap:
Unavailable
Alexa Traffic Rank:
Server:
Varnish
City:

code.org - Pages Indexed

Baidu:
Bing:
Google:
Yandex:

code.org - Site Security

McAfee SiteAdvisor:
Norton Safe Web:

code.org - Social (SNS)

Delicious:
0
Stumbleupon:
6
Facebook Likes:
0
Twitter Tweets:
0
Google Plus Likes:
6

code.org - Page Information

Title:
Anybody can learn | Code.org
Length: 28 character(s); Best length: 10 ~ 60 character(s)
Meta keywords:
Unknown
Length: 0 character(s)
Meta description:
Unknown
Length: 0 character(s); Best length: 50 ~ 160 character(s)
H1:
Code.org thanks its supporters
Length: 30 character(s)
Internal links:
19 (0 nofollow)
External links:
35 (0 nofollow)

code.org - Traffic Rank

Alexa Traffic Graphs:
Daily Global Rank Trend
(6 Months)
Daily Global Rank Trend
(2 Years)
Daily Pageview per User Daily Reach Search Visits
Daily Global Rank Trend (6 Months): code.org Daily Global Rank Trend (2 Years): code.org Daily Pageview per User: code.org Daily Reach (per million): code.org Search Visits (percent): code.org
Daily Global Rank Trend (6 Months): code.org
Compete Traffic Graphs: Unique Vistors:
Compete Traffic Graphs: Unique Vistors: code.org

code.org - Site Technology

Server:
Varnish
SSL Secure:
Available
robots.txt:
XML Sitemap:
Unavailable
Gzip Compress:
Available
Favicon.ico:
Unavailable

code.org - HTTP Header Analysis

HTTP header fields are components of the message header of requests and responses in the Hypertext Transfer Protocol (HTTP). They define the operating parameters of an HTTP transaction. The header fields are not directly displayed by normal web browsers like Internet Explorer, Google Chrome, Firefox etc. Below is the HTTP Header information of code.org:
HTTP/1.1 301 http://code.org/
Accept-Ranges: bytes
Age: 0
Date: Tue, 01 Sep 2015 23:32:13 GMT
Location: http://code.org/
Server: Varnish
Via: 1.1 varnish
X-Varnish: 1966039809
X-Varnish-Cache: MISS
X-Varnish-Node: frontend-c01
Content-Length: 0
Connection: keep-alive

HTTP/1.1 301 https://code.org/
Accept-Ranges: bytes
Age: 0
Date: Tue, 01 Sep 2015 23:32:13 GMT
Location: https://code.org/
Server: Varnish
Via: 1.1 varnish
X-Varnish: 1246347636
X-Varnish-Cache: MISS
X-Varnish-Node: frontend-e01
Content-Length: 0
Connection: keep-alive

HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 1088
Cache-Control: public, must-revalidate, max-age=3600
Content-Encoding: gzip
Content-Language: en-US
Content-Security-Policy: default-src 'self' https:; script-src 'self' https: 'unsafe-inline' 'unsafe-eval'; style-src 'self' https: 'unsafe-inline'; img-src 'self' https: data:; font-src 'self' https: data:; connect-src 'self' https: https://api.pusherapp.com wss://ws.pusherapp.com; report-uri //code.org/https/mixed-content
Content-Type: text/html;charset=utf-8
Date: Tue, 01 Sep 2015 23:32:13 GMT
Status: 200 OK
Strict-Transport-Security: max-age=31536000
Vary: X-Varnish-Accept-Language,Cookie,Accept-Encoding
Via: 1.1 varnish
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Varnish: 1246347649 1246295704
X-Varnish-Cache: HIT
X-Varnish-Node: frontend-e01
X-XSS-Protection: 1; mode=block
Content-Length: 17474
Connection: keep-alive

code.org - DNS Record Analysis

Domain Name Systes (DNS) translates easily memorized domain names to the numerical IP addresses needed for the purpose of locating computer services and devices worldwide. There are total 12 DNS record(s) of code.org.
Host Type IP/Target TTL Extra Infomation
code.orgA60
code.orgMX300pri: 5
code.orgMX300pri: 10
code.orgMX300pri: 10
code.orgMX300pri: 5
code.orgMX300pri: 1
code.orgNS172799
code.orgNS172799
code.orgNS172799
code.orgNS172799
code.orgSOA900expire: 1209600
serial: 1
code.orgTXT
v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:smtp.zendesk.com include:servers.mcsv.net ~all
300