Gmail Username Rules & Brand Availability
Building a brand around a Gmail address? Here are Gmail’s exact username rules, plus a one-search way to confirm the same name is free for your domain and across 45+ platforms, so your email and your brand stay in sync.
Gmail username rules
A Gmail username, the part before @gmail.com, is 6 to 30 characters and may use only lowercase letters, numbers, and periods. A period cannot start or end the address, and two periods cannot sit together. Note that Gmail ignores dots entirely for delivery, so "j.smith" and "jsmith" reach the same inbox. For years a Gmail address was permanent; Google has recently begun allowing limited username changes, but the safest assumption when planning a brand is that the address you pick is the one you keep.
What to do if your Gmail name is taken
If your preferred Gmail address is taken, a dot variant or a short brand word ("hello", "team", "hq") usually reads professionally. Better still for a business: a custom domain email ("you@yourbrand.com") sidesteps Gmail availability entirely, which is why it is worth checking your .com first. Run the name below to see domains and 45+ platforms together.
Frequently asked questions
What are the rules for a Gmail username?
The address before @gmail.com is 6-30 characters using lowercase letters, numbers, and periods; it cannot start or end with a period or use two in a row.
Do dots in a Gmail address matter?
No, for delivery. Gmail ignores periods, so "j.smith@gmail.com" and "jsmith@gmail.com" go to the same inbox.
Can I change my Gmail address later?
Historically a Gmail address was permanent. Google has recently introduced limited username changes, but plan as if your choice is long-term.
Does NameCheq check Gmail availability?
No, Gmail is not among the 45+ platforms NameCheq queries. This page checks your brand name across domains and those platforms so a matching identity is realistic.