Published: 17.10.2026
The .bio extension is a generic top-level zone, so it is not tied to any country. The word bio is short for biography and for biology, and in several European languages it also means organic. For that reason the zone suits personal profile pages, researchers and science projects, and producers or wellness practitioners who want a short and clear address. Use the availability form just below this text to see whether your name in .bio is still free.
Check if a .bio domain is available .bio Check
A short history
The .bio zone was introduced together with the wave of new generic extensions that opened the domain namespace to many more words and themes. Since then it has been taken up by writers, speakers, artists and small firms who want a name that describes their work or their personal story in a single word. Like most newer generic zones, it is less familiar to the public than .com, so visitors often need a moment to understand the ending.
Who runs it
A generic zone such as .bio is managed by a registry operator under an agreement with ICANN, the body that coordinates the global domain name system. The operator sets its own registration policies, and accredited registrars sell names to customers and send the orders to the registry. Because policies are chosen by the operator and can be revised, the terms shown at the time of the order are the ones that apply to you.
Rules in practice
- Open use: generic zones are usually open to most applicants, but the operator may set rules on acceptable use and on certain kinds of content. Read them first.
- Contact data: the holder details must be accurate, and the registrar may ask you to confirm them.
- Length and characters: names use letters, digits and hyphens, and a single label can be up to 63 characters long.
- Renewal: names must be renewed on time, so enable auto-renewal and keep the contact e-mail address active.
Who uses .bio
- Authors, speakers and artists who present themselves through a short personal profile or portfolio.
- Scientists, laboratories and education projects that work in biology and the life sciences.
- Producers of organic food and natural goods, and farms that describe their methods openly.
- Coaches, nutrition advisers and wellness practitioners who want a memorable address for their work.
Strengths
- The word is short and easy to spell, so it works well in a profile line, on a business card or in conversation.
- The name connects immediately to a theme, so visitors can guess what the site is about.
- Because the zone is not tied to a country, it can serve readers and customers in several places.
Things to keep in mind
- The word bio has several meanings, so pair it with a clear name or a short descriptor if you want the topic to be obvious.
- A site that promises organic or health results needs accurate content, and it must follow the advertising and labelling rules that apply where you sell.
- Many visitors still expect .com, so consider owning both addresses if your audience is broad.
- Operators can change their terms, so read the current rules before you order.
Tips before you register
- Check the same name in .com and on the social networks you plan to use.
- Choose a name you can explain in one sentence, because a clear idea is easier to remember.
- Build a short homepage with a clear description, so the purpose of the address is obvious at once.
- Set up SPF, DKIM and DMARC records before you send e-mail from the domain.
- Use two-factor login on the registrar account and keep the recovery details up to date.
Frequently asked questions
Is .bio only for biology and science? No. The zone is open to many themes, including personal profiles, food and wellness, although the name hints at living things and their study.
Does a .bio name help a site rank higher? No ending can promise a ranking. Search engines look at content, relevance and links first, so the name should be chosen for clarity.
Is .bio a good choice for a personal page? Many people use it for a short profile or portfolio. Make sure the page itself gives visitors enough context about who you are and what you do.
