Nov 30

Written by: Thumbshots
Sunday, November 30, 2008

Thumbshots Specifications

Thumbshots are available in various sizes with the default set to 120W x 90H pixels. Studies show the effectiveness of thumbshot increases linearly with size until it levels off at 120 pixels. In other words, 120 pixel is the maximal size for optimal benefits.

All Thumbshots are highly compressed in JPEG format using the best compression library for highest quality and minimal file size. Each image is only 1kB to 3kB in size (smaller than most logos!). Our technology ensures Thumbshots will never slow down your site because Thumbshots only start loading after your page has completely downloaded and rendered. Users will not perceive any delay even on a 56 kbps modem.

Supported Formats

The output of each thumbshot is based on server HTTP response for that URL. For example, a screenshot for a page that no longer exists shows a picture with the 410 error code and the message "Page no longer available", therefore, immediately signaling the user that the link is broken. All message picture can be branded to your site and can host a sponsored advertisement.

The following are common error codes received from a web site and their associated Thumbshots message:

HTTP Status	Message	Output
200	Success	Thumbshot shows screenshot of web page
301	Moved permanently	Thumbshot shows screenshot of redirected page
302	Found but moved	Thumbshot shows screenshot of redirected page
401	Permission required	Thumbshot shows friendly error message
403	Request forbidden	Thumbshot shows friendly error message
404	Page not found	Thumbshot shows friendly error message
408	Server timed out	Thumbshot shows friendly error message
410	No longer available	Thumbshot shows friendly error message
500	Internal server error	Thumbshot shows friendly error message
503	Server overloaded	Thumbshot shows friendly error message, retry later
504	Server timed out	Thumbshot shows friendly error message

Smartdevil currently supports both HTTP and HTTPS protocols, and can capture Text and HTML file formats (including all dynamically generated pages). All rendered Thumbshots fully comply to W3C HTML 4.0 specifications. Thumbshots automatically know to adjust to internal page redirection through META tags, support embedded frames (IFRAME, FRAMESET), floating layers, Javascript and Macromedia Flash.

 

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