Thanks for the detailed report.
The delay on first use is expected behavior. When you publish or update a post, the plugin fires immediately, but if your site uses any page cache, object cache, or CDN, the new pingback comment may not appear on the front end until that cache refreshes. The plugin worked correctly; you were just seeing a stale cached version.
The missing comment link is a theme issue, not a plugin bug. The plugin inserts the comment with comment_type = 'pingback', which is identical to a native WordPress pingback. Many modern themes hide pingbacks by default or simply don’t render them on the front end, even though the comment exists in the database.
To confirm the plugin is working, go to WordPress Admin → Comments. If the pingback appears there, the plugin is doing its job.
To fix the display, check your theme settings for a pingbacks/trackbacks toggle. If there isn’t one, you may need to add a small template customization or switch to a theme that renders pingbacks. You can also check Settings → Discussion and make sure “Allow link notifications from other blogs” is enabled, as some themes reference that setting before rendering pingbacks.
I checked and realized my interface is missing the code to display pingback comments. Thank you for clarifying.
However, before concluding this discussion, I would like to ask if you can generate pingback link code for bbpress? As far as I know, bbpress has long since disabled this feature, and now I want the pingback links to appear together in topics and posts, or in different topics.
Furthermore, it seems the page isn’t showing the pingback? Because I have created a list of posts in the page, but the pingback isn’t appearing.
You’re welcome and I’m glad you managed to solve the problem.
That’s right: in this plugin, Pages, as well as Custom Post Types, do not receive nor generate pingbacks; only regular posts do so; it’s an old school blog tool after all. In my site I put links to some of my posts in some of my pages, which is enough for me.
Unfortunately, I have no experience with bbpress whatsoever.
