Title: Multiple posts with same LastModified timestamp
Last modified: May 2, 2021

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# Multiple posts with same LastModified timestamp

 *  Resolved [pasindu183](https://wordpress.org/support/users/pasindu183/)
 * (@pasindu183)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/multiple-posts-with-same-lastmodified-timestamp/)
 * Hi,
    I have a blog where multiple posts have the same last-modified timestamp.
   Will this be an issue with Yoast sitemap generation?
 * As I can understand from the following code(line 540), it only uses the post_modified
   time for sorting. Will this SQL be stable when we have many duplicate timestamps?
 * [https://github.com/Yoast/wordpress-seo/blob/0742e9b6ba4c0d6ae9d65223267a106b92a6a4a1/inc/sitemaps/class-post-type-sitemap-provider.php#L496](https://github.com/Yoast/wordpress-seo/blob/0742e9b6ba4c0d6ae9d65223267a106b92a6a4a1/inc/sitemaps/class-post-type-sitemap-provider.php#L496)
 * Thanks.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Support [Michael Tiña](https://wordpress.org/support/users/mikes41720/)
 * (@mikes41720)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/multiple-posts-with-same-lastmodified-timestamp/#post-14390683)
 * Hi,
 * The `lastmod` property should reflect the most recent `lastmod` value from within
   the XML sitemap in question.
 * You can learn more about it here — [https://developer.yoast.com/features/xml-sitemaps/functional-specification/](https://developer.yoast.com/features/xml-sitemaps/functional-specification/)
 * However, even if you have multiple posts with the same `lastmod` date, it shouldn’t
   cause any issues as they would still be listed in their respective sitemap, and
   should still be crawlable by the search engines.
 *  [devnihil](https://wordpress.org/support/users/devnihil/)
 * (@devnihil)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/multiple-posts-with-same-lastmodified-timestamp/#post-14416364)
 * We are going ahead and marking this issue as resolved due to inactivity. If you
   require any further assistance please create a new issue.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Multiple posts with same LastModified timestamp’ is closed to new replies.

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 * 2 replies
 * 3 participants
 * Last reply from: [devnihil](https://wordpress.org/support/users/devnihil/)
 * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/multiple-posts-with-same-lastmodified-timestamp/#post-14416364)
 * Status: resolved