Does Discourse allow the use of alternate domain names?

AI-generated summary

bairidaka reports that their configured domain in app.yml is blocked by ISPs in certain regions (specifically JiangSu province), causing timeouts even after switching CDN to Cloudflare. They wish to use an alternate domain to access the same Discourse site, but note Discourse appears to only allow access via the original domain plus port 80/443. Jagster initially questions whether DNS propagation might be the issue, but bairidaka confirms the problem persists after 24+ hours. qingfeng1024 suggests a solution: switch to the new domain and redirect the old one, and invites further discussion in a separate Chinese-language thread (link), noting Discourse admins prefer English in official threads. bairidaka clarifies their goal is dual-domain access due to regional blocking, not just redirection. qingfeng1024 reiterates that domain switching with redirection is feasible, and again encourages moving detailed Chinese discussion to the external thread.

The domain name I configured in

app. yml

seems to have been blocked by the ISP of some regions.
And when I attempt to directly resolve the new domain name (A record) to the website ,accessing the new domain still redirects to the old domain.
So could i use another domin to connect my website? What should i do in app.yml?

Are you totally sure about blocking? Because if this is a new setup it can take from hours to day before new DNS records are spread all over the world.

Yes, it takes me a whole day to confirm.
Like this image


Red Chinese word means “timeout”
I thought it’s just the error of CDN before.
But after changing CDN to CF(CLOUDFLARE), the red warning still hasn’t disappeared. And just in JiangSu province.

Yes, it takes me a whole day to confirm.
Like this image

Red Chinese word means “timeout”
I thought it’s just the error of CDN before.
But after changing CDN to CF(CLOUDFLARE), the red warning still hasn’t disappeared. And just in JiangSu province.

for Chinese:

https://starorigin.net/t/topic/580

Also, are you using Cloudflare’s preferred DNS? If convenient, we can discuss it in detail on the website’s post.

I want to use two domain names to point to the same site at the same time because the earliest domain name has been blacklisted by the local operator, but Discourse does not seem to support this and can only be accessed through a domain name plus port 80/443.

可以通过更换域名并将旧域名重定向到新域名来实现。如果你不介意的话,我们可以在前面提到的帖子中讨论。Discourse 社区的管理员不太支持在帖子中完全用中文交流。