If the thumbnail image of a published article does not display, please try the following.
Solutions
- Check if the URL of the thumbnail image is correct
Check if the URL of the Thumbnail Image Is Correct
The following specifications are incorrect. Please check the URL specified in <media:thumbnail> using the SmartFormat Check Tool.
- The image URL contains Japanese characters or other characters: Japanese URLs cannot be used. Be sure to encode Japanese URLs.
- The image size is small: A minimum of 400px on the shortest side is recommended.
- The image file size is large: We recommend 1MB or less.
- The width (or height) is too large: The longest side should be no more than 3.3 times the shortest side (if the longest side = L and the shortest side = S, then L ≤ 3.3S).
- The same URL is specified repeatedly: Please ensure the image file name is not identical to any string used previously.
For more details, please see Specifying Thumbnail Images.