I’m running into an issue with the ActivityPub feature on my self-hosted Ghost installation and could use some advice from anyone who’s encountered something similar. Previously, I had a Ghost server where I enabled ActivityPub, which registered the username @index@craftedsilicon.com with ap.ghost.…

[image] Can I reset/delete my site’s registration on ap.ghost.org? Self-hosting I set up a self-hosted Ghost on Docker following the installation guide (Ghost 6.0.6, Docker, Caddy). I want to use the Ghost(Pro) hosted ActivityPub Service, but I can’t initialis…

Thanks @Kentone . However, I’m concerned that switching to a self-hosted ActivityPub setup might result in two instances appearing in the Fediverse. Specifically, when searching from Mastodon, it might only show one profile with the same username, and that might not be the new self-hosted one, causi…

[image] aswinsam: might result in two instances appearing in the Fediverse This would not happy :slight_smile: ActivityPub works via DNS. Essentially, Mastodon (or any other AP instance) would query your domain, which then returns the AP data. Right now, Ghost is connecting to ap.ghost.org …

Thanks for clarifying that, @jannis —makes sense that self-hosting the ActivityPub service would keep everything resolved via DNS without creating duplicates, since Mastodon would just query my domain and get routed to the local setup. One thing I’m still unclear on: if there’s currently no active …

[image] aswinsam: Is that due to some kind of caching in the Fediverse Not necessarily on the Fediverse (since there’s not a single entity for that), but on that particluar Mastodon instance, yes. I usually use https://browser.pub to debug any ActivityPub-related things. That always fetches …

Thanks @jannis for the clarification. I’ve checked https://browser.pub and confirmed that I’m redirecting https://craftedsilicon.com/.ghost/activitypub/users/index to ap.ghost.org . However, it seems the data on ap.ghost.org is tied to an outdated Ghost installation. To resolve this, I could either …

Update on this issue @Kentone and @jannis , No Response from support@ghost.org on the same. I have sent out one more and still nothing. The automation mail said they will get back from monday to friday, but its been 10 days now. Ghost Team, Please provide a solution for the same.

So… maybe it’s a problem with your previous setup. But OTOH, maybe it isn’t. Ghost logs that error on startup any time ActivityPub isn’t initialized. Are there any additional messages in the Ghost logs on start up? Are there any 404s in the Ghost logs on startup? Are there any errors or non-2xx e…

Hi @Cathy_Sarisky , thank you for taking a look at the issue. Please check out the following ghost restart logs: ubuntu@ghost-247202:/var/www/ghost$ ls config.production.json content current system versions ubuntu@ghost-247202:/var/www/ghost$ ghost restart && ghost log -f Love open source? We’…

Any errors at the same time over in the Caddy container?

ActivityPub Initialization Error on Self-Hosted Ghost – "No webhook secret found"

Developer help Installation

Sag September 23, 2025, 2:32pm 15

@aswinsam would you be able to restart your Ghost container again? I believe there was another outdated cached entry that I missed yesterday.

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ActivityPub Initialization Error on Self-Hosted Ghost – "No webhook secret found"

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