How to host atypical TLDs on WHMCS / other places?

edited January 11 in Help

I had a new idea for a personal site I wanted to make. Nothing fancy, just a fun side project. So I do the usual, poke around with domain names until I find one available that fits the theme. Found one without too much difficulty! Bought it, cool.

But now, I login to one of the hosts I have used before and start to order some new shared hosting services, but lo and behold:

Now, I presume I could just toss some other domain in there, continue with registration, then set the real one up in the config area. But as someone who is still fairly noobish in this field, doing so makes me worry I'd run into other similar issues in other places (like in cPanel, or in WordPress, which I was probably going to use for this). The specific host I tried isn't important, butI tried 3 total, (granted, all ones with WHMCS), and I doubt the specific TLD would be a concern either, as it's one available at PorkBun and NameCheap (but not yet at CloudFlare) so hypothetically is not all that obscure.

Suggestions, alternative ideas, or thoughts appreciated!

Comments

  • What you’re running into is almost certainly a validation / support lag issue, not a problem with your domain or anything you did wrong.

    What’s actually happening is that most shared hosts that use WHMCS rely on:

    • A hard-coded or semi-hard-coded list of “allowed” TLDs
    • Or outdated domain-validation logic (regex + TLD list)

    If your TLD is:

    • Newer
    • Less common
    • Or simply not added yet to that host’s WHMCS config

    thæn WHMCS will reject it with “The domain you entered is not valid”, even though the domain is 100% real, registered, and working.

    This is very common with:

    • Newer gTLDs
    • Some niche ccTLDs
    • TLDs supported by registrars (Porkbun, Namecheap) but not yet by every hosting provider

    You mentioned all 3 hosts use WHMCS, that’s the key detail.

    Many hosts:

    • Never update their WHMCS TLD list
    • Or disable “unsupported” TLDs to reduce support tickets
    • Or only allow TLDs they themselves sell as registrars

    So you’re seeing the same underlying limitation, not three independent problems.

    As for your question of using a “placeholder domain”, yes, this is normal and safe, and you won’t break anything if you do it correctly.

    Typical approaches include using a temporary domain like:

    • example.com
    • tempdomain.tld
    • yourusername.hostingdomain.com

    Complete hosting signup

    Add your real domain later via:

    • cPanel → Domains / Addon Domains
    • Or “Change Primary Domain” (host support may need to do this)

    WordPress, cPanel, SSL, etc. do not care what domain you initially signed up with, as long as:

    • DNS eventually points correctly
    • You update the site URL if WordPress was installed before switching

    WordPress only stores:

    • siteurl
    • home

    If you want a cleaner alternatives (if you want to avoid hacks)

    Option 1: Ask the host
    Open a ticket and say:
    “My domain is valid but your order form rejects the TLD. Can you add it or manually provision the account?”
    Good hosts will fix it in minutes.

    Option 2: Choose a host that doesn’t care
    Some hosts:
    Let you sign up with any domain
    Or give you a temporary hostname by default

    Option 3: Use Cloudflare later
    Even if Cloudflare doesn’t support the TLD yet:
    You can run DNS at your registrar
    Move to Cloudflare later once supported

    TL;DR

    • Your domain is fine
    • This is a WHMCS TLD validation issue
    • Using a placeholder domain is safe and common
    • WordPress/cPanel will not break because of this
    • The “right” fix is the host updating their TLD list — not you changing domains

    ^ Original post cleaned up and formatted with AI

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  • @SocksAreComfortable said:
    I presume I could just toss some other domain in there, continue with registration, then

    I feel I do not completely understand your question, so will just add my 2 cents:

    For a (very) long while I used the same domain as the primary / main / whatever_it's_called one with multiple cPanel shared hosts.
    Then also added it to at least one (or two?) DirectAdmin host. The domain wasn't actually delegated all that time (no NS set).

    Then I dropped that domain altogether - .INFO, which became unreasonably expensive. I keep using at least some of the providers mentioned above.

    Just in case, all the plans I bought support more than one add-on domain. Unsure what will happen if only one domain is supported. That's probably a support ticket.

    So I believe using something random or another domain you own shouldn't be an issue. You will just see it from time to time here and there.

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