When using the Google Rich Snippet Tool a warning of hatom-feed shows up in Extracted structured data section if the tool is unable to extract the information “entery-title”, “updated” and “author” from the webpage you are testing.

If the tool is unable to extract information of all three fields from webpage it shows following warnings;

Hatom-Feed Warning
If Google Rich Snippet Tool is able to extract information from one or two fields it shows warning for only missing fields.


You need to provide rich snippet tool these three fields to remove these warnings. WordPress users need to modify single.php in their theme folder to remove this warning.

Fixing Warning: Missing required field “entry-title”:

The title of your post which is mostly enclosed in header tags needs to include a class attribute. If it already has a class attribute then append “entry-title” without quotes to it.

Page Title

For WordPress users:

Open single.php located in your theme folder and find. If it is not enclosed in header tag then wrap it into a header tag and add class attribute with value “entry-title”.

Fixing Warning: Missing required field “updated”:

To remove this warning you need to have a date of content update. The date needs to be closed in a span tag with attribute.


For WordPress users:

In your single.php file find the_time or echo get_the_date(); and enclose it into a span tag with attribute.


Fixing Warning: Missing required hCard “author”:

To fix the missing hCard “author” warning add enclose the author name into following span tags.

Author Name

For WordPress users:

In single.php find the_author(); or the_author_posts_link(); and replace it with anyone of following lines.


Hatom-Feed Warning Fixed

Hatom-Feed Warning Fixed

If the problem persist or you have any question please post them into comments.