.PAY domain
Checking availability…
Yes. .PAY can fit invoice-payment portals because it tells customers the link is about paying. Search options such as brand-specific or invoice-related labels on domain.pay: https://domain.pay/domains. Confirm availability and premium status before adding the URL to invoices.
You can still pursue cactus.pay without a trademark by using a standard first-day pre-order rather than trademark-priority registration. A registered mark, if you have one, would let you use a TMCH SMD file for earlier access. domain.pay supports both paths at https://domain.pay/register.
TMCH is the Trademark Clearinghouse. For .PAY priority registration, the trademark record must be validated and the registrant needs a matching SMD file. domain.pay can help start the fast-track or submission path: https://domain.pay/register. Begin early because TMCH handling takes time.
Two similar .PAY names can differ in price because the registry classifies some cactus strings as premium and others as standard $100 labels. So cactus.pay may cost more purely due to Amazon Registry Services' tiering. Compare cactus.pay against alternatives at https://domain.pay/pricing.
.PAY is best understood as a payment-focused domain ending for use cases such as digital wallets, checkout, billing, wallets and fintech. It is not a compliance substitute, but it can make the URL purpose clearer. Check your label at domain.pay: https://domain.pay/.
Availability is checked live and re-verified before payment. Pre-orders are first-day registration attempts — registration is not guaranteed; 100% credit toward another domain (or 80% cash refund) if unsuccessful.