Yahoo's 51 Web Page Elements
Yahoo's patent applications provides a list of 51 web page elements that can be analyzed to determine the clutter of a web page:
- Total number of links
- Total number of words
- Total number of images (non-ad images)
- Image area above the fold (non-ad images)
- Dimensions of page
- Page area (total)
- Page length
- Total number of tables
- Maximum table columns (per table)
- Maximum table rows (per table)
- Total rows
- Total columns
- Total cells
- Average cell padding (per table)
- Average cell spacing (per table)
- Dimensions of fold
- Fold area
- Location of center of fold relative to center of page
- Total number of font sizes used for links
- Total number of font sizes used for headings
- Total number of font sizes used for body text
- Total number of font sizes
- Presence of "tiny" text
- Total number of colors (excluding ads)
- Alignment of page elements
- Average page luminosity
- Fixed vs. relative page width
- Page weight (proxy for load time)
- Total number of ads
- Total ad area
- Area of individual ads
- Area of largest ad above the fold
- Largest ad area
- Total area of ads above the fold
- Page space allocated to ads
- Total number of external ads above the fold
- Total number of external ads below the fold
- Total number of external ads
- Total number of internal ads above the fold
- Total number of internal ads below the fold
- Total number of internal ads
- Number of sponsored link ads above the fold
- Number of sponsored link ads below the fold
- Total number of sponsored link ads
- Number of image ads above the fold
- Number of image ads below the fold
- Total number of image ads
- Number of text ads above the fold
- Number of text ads below the fold
- Total number of text ads
- Position of ads on page
According to the patent application, Yahoo might also consider the presence of animated and flashing ads and the average ad luminosity.
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