Unable to change subdomain used for workers
(cross-posted to the discourse - https://community.cloudflare.com/t/unable-to-change-subdomain-used-for-workers)
Hi folks,
I’m trying to change the subdomain for all my workers from the overview page & then clicking change on the right hand side under subdomains. As per the screenshot, I’m receiving an error of the domain being unavailable. Is there any way to figure out why it’s unavailable/what’s blocking the change?
9 Replies
Someone else already has it
can tell by just attempting a lookup, it returns IPs for *.gurste.workers.dev instead of nxdomain, which is why it's telling you it's not avaliable
Tah for that, had used the likes of mxtoolbox.com & domaintools.com to ping it do DNS lookups & they weren't returning any results, but nice to get another opinion!
I mean just it saying not avaliable means you're out of luck anyway but yea there's a few ways you can tell. One being if you do a simple lookup for the soa (start of authority) or for a record that doesn't exist, it's tells you which zone is responsible for it/was queried
can tell the authority section for one that doesn't exist (gurste3) is saying the response came from the root workers.dev zone, but for one that does exist, it came from
gurste.workers.dev directly
also the workers.dev all have wildcards on them *.<workers-subdomain>.workers.dev, so if you get back A/AAAA when looking up a random subdomain, it existsTah for that! 🙂 Wonder if there's a way of finding who's claimed it to see if they're actually using it or would be willing to give it up
don't think so. Shouldn't matter too much anyway, you shouldn't be using the workers.dev for much. Anything production/exposed to people should be via Worker Custom Domains or Routes on your actual domains. That way you get control over security/waf/analytics/etc
There isn't, that would be strange from a privacy standpoint. Nothing you can do with one that's already claimed I'm afraid, just have to pick a different one.
No worries, tah, CEO asked if it was possible, can happily go back & say it’s not & close the ticket! 😛
Hahah, fair enough