Short answerA custom address is the name before .htmltolink.dev in your link. It must be 3–40 characters of lowercase letters, numbers and single hyphens, not start or end with a hyphen, and be unused. Short, readable names get more clicks than random ones.
The rules
- 3 to 40 characters.
- Lowercase letters
a–z, digits0–9and hyphens. - No hyphen at the start or end, and no double hyphens.
- First come, first served — the converter checks availability as you type.
- Some names are reserved (for example
www,api,admin), and names that imitate banks, wallets, big brands or login pages are refused to protect visitors from phishing.
Names that work
| Instead of | Try | Why |
|---|---|---|
test123 | lumen-spring-menu | Says what the page is. |
mypage | ana-portfolio | Unique, so it is likely free. |
wedding | sam-and-lee-2027 | Personal and memorable. |
paypal-invoice | studio-invoice-1042 | Brand names are blocked; your own name is not. |
Leaving it empty
Leave the field empty and you get a friendly random name such as calm-river-4821. That is fine for a quick test; for anything you print or send to clients, choose your own.
Can I change the address later?
The address is fixed for the life of the link, because changing it would break every place you shared it. To move to a new name, convert the page again with the new address and delete the old link in My links.