I see the canonical URL is pointing to the blog post so it works.

However sometimes google still show two results. Here are the reasons:

• Even though you have a canonical URL pointing to the blog post, Google sometimes decides to rank both pages separately based on user behavior, content relevance, or the importance of each page. The forum topic might be seen as a valuable source of discussion or engagement, and thus, it still gets indexed.
• Google treats the canonical tag as a suggestion rather than a strict directive. If the forum page has good engagement, backlinks, or unique elements (like comments or discussions), Google might still display it.
• In cases of cross-posting content (as with your blog post and forum topic), Google might sometimes index both versions if the content is slightly different (due to additional comments or forum metadata). It could be reading both as valuable despite the canonical tag.

We're considering to add noindex meta tag to cross-posted topics so this will 100% stop indexing them. We may add it in upcoming version of the addon.

this is the related url: https://playfront.de/vor-ps5-pro-start-ps5-slim-preisenkung-bei-zahlreichen-haendlern/

So everything is fine?

regards :)

That addon option changes the topic's canonical URL to the cross-posted post URL, so Google understands that the content it indexes belongs to the blog post. This prevents it from being treated as a separate page and avoids duplication in search results.

This works well on all websites using wpForo Cross Posting, so I believe the wpForo SEO features on your website may be affected by other plugins. Please provide a direct link to the post shown in your screenshot so I can check the meta information.

 ist set to 'Blog Post' currently. and the seo settings for the wordpress page himself (controlled by Smart Crawl SEO) is Set: off, see. But don't know if this correct. Since then,the forum post didn't show up in Google.

Could you please provide the value of the 'Cross-posted Topic Canonical URL' option? You can find it under Dashboard > wpForo > Settings > Addons Settings > 'Forum - Blog' Cross Posting admin page.

i am a bit confused about the SEO with Cross Post. The Google Results could a bit better, see here:

The first result is from the blog post and controlled by Smart Crawl. The second entry is the board post, but looks on Google too generic. It should be the topic title instead 'Threads' and not as meta description.

Any idea?

Thx!