htdp.org

How to Design Programs

How popular is htdp.org?

This table shows the popularity of htdp.org relative to ther sites.
DateAlexa RankChange
Sep-19-2018 N/AN/A
Sep-18-2018 N/AN/A
Sep-17-2018 N/AN/A
Sep-16-2018 N/AN/A
Sep-15-2018 N/AN/A
Sep-14-2018 N/AN/A
Sep-13-2018 N/AN/A

htdp.org alexa rank history


What does Alexa Rank mean?
Alexa rank is calculated using a combination of the estimated average daily unique visitors to the site and the estimated number of pageviews on the site. The site with the highest combination of unique visitors and pageviews is ranked as #1

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htdp.org

htdp.org whois

Domain Name: HTDP.ORG
Registry Domain ID: D74020628-LROR
Registrar WHOIS Server: whois.gandi.net
Registrar URL: http://www.gandi.net
Updated Date: 2017-03-15T18:04:54Z
Creation Date: 2001-06-29T14:32:48Z
Registry Expiry Date: 2018-06-29T14:32:48Z
Registrar Registration Expiration Date:
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: C6140643-LROR
Registrant Name: How to Design Programs
Registrant Organization: How to Design Programs
Registrant Street: Shriram Krishnamurthi
Registrant Street: Computer Science Department
Registrant Street: Brown University, Box 1910
Registrant City: Providence
Registrant State/Province: RI
Registrant Postal Code: 02912
Registrant Country: US
Registrant Phone: +1.4018637722
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: sk+60@cs.brown.edu
Registry Admin ID: C7447096-LROR
Admin Name: Shriram Krishnamurthi
Admin Organization: Brown University
Admin Street: Computer Science Department
Admin Street: Box 1910, Brown University
Admin City: Providence
Admin State/Province: RI
Admin Postal Code: 02912
Admin Country: US
Admin Phone: +1.4018637722
Admin Phone Ext:
Admin Fax: +1.4018637657
Admin Fax Ext:
Admin Email: f139d03b45e5258500ba48098f83a5f2-110164@contact.gandi.net
Registry Tech ID: C6122580-LROR
Tech Name: Service Technique
Tech Organization: GANDI SARL
Tech Street: 63 - 65 Boulevard Massena
Tech City: Paris
Tech State/Province:
Tech Postal Code: 75013
Tech Country: FR
Tech Phone: +33.143737851
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: support@gandi.net
Name Server: NS-1106.AWSDNS-10.ORG
Name Server: NS-699.AWSDNS-23.NET
Name Server: NS-372.AWSDNS-46.COM
Name Server: NS-2035.AWSDNS-62.CO.UK
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2017-12-18T02:15:43Z

htdp.org server information

htdp.org desktop page speed rank

Site Title: How to Design Programs


Htdp.org Desktop Speed: 97/100

Htdp.org Desktop Speed Test Quick Summary:

2 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.


Leverage browser caching for the following cacheable resources:

http://htdp.org/htdp-cover.gif (expiration not specified)
http://htdp.org/mit.gif (expiration not specified)
http://htdp.org/mit2.gif (expiration not specified)

1 Optimize images

Properly formatting and compressing images can save many bytes of data.


Optimize the following images to reduce their size by 9.1KiB (14% reduction).

Compressing http://htdp.org/htdp-cover.gif could save 9.1KiB (14% reduction).

Htdp.org Desktop Resources

Total Resources4
Number of Hosts1
Static Resources3

Htdp.org Desktop Resource Distribution

htdp.org mobile page speed rank

Site Title: How to Design Programs


Htdp.org Mobile Speed: 96/100

Htdp.org Mobile Speed Test Quick Summary:

3 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.


Leverage browser caching for the following cacheable resources:

http://htdp.org/htdp-cover.gif (expiration not specified)
http://htdp.org/mit.gif (expiration not specified)
http://htdp.org/mit2.gif (expiration not specified)

1 Optimize images

Properly formatting and compressing images can save many bytes of data.


Optimize the following images to reduce their size by 9.1KiB (14% reduction).

Compressing http://htdp.org/htdp-cover.gif could save 9.1KiB (14% reduction).

Htdp.org Mobile Resources

Total Resources4
Number of Hosts1
Static Resources3

Htdp.org Mobile Resource Distribution

htdp.org mobile page usability

Site Title: How to Design Programs


Htdp.org Mobile Usability: 89/100

Htdp.org Mobile Usability Test Quick Summary:

10 Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.


Configure a viewport for this page.

Htdp.org Mobile Resources

Total Resources4
Number of Hosts1
Static Resources3

Htdp.org Mobile Resource Distribution

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htdp.org Ping

htdp.org TRACERT

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