Search box for a domain name

Register your .BIO domain

For the sciences and beyond

Why choose a .BIO domain?

Biology, biography, biophysics, biosphere, biotech, biopic. The term "bio" has many uses, and the .bio top-level domain (TLD) can be used as a URL extension for a multitude of different industries, sciences, and studies.

Is a .BIO domain extension right for me?

Because the .bio TLD represents a complex prefix (the Greek root can be found in the words of over six different languages), it's an internationally recognized and expansive extension for broad use. This is a perfect domain choice for researchers, scientists, directors, writers, and historians alike.

Get your .bio domain for just



Discover .bio domain prices

  1 year 2 years 3 years 4 years 5 years
.bio  registration

Personal ‘Whois’ data kept safe with Domain Privacy – FREE for life

96% off 1st year$67.98
96% off 1st year$135.96
96% off 1st year$203.94
96% off 1st year$271.92
96% off 1st year$339.90
.bio  renewal

Personal ‘Whois’ data kept safe with Domain Privacy – FREE for life

.bio  transfer

Personal ‘Whois’ data kept safe with Domain Privacy – FREE for life


Safety and support for your .bio

Real DNS Power

Real DNS Power

Namecheap’s network of DNS servers covers Europe and the US to deliver 99.99% uptime – keeping your site running smoothly. Other DNS features include URL and email forwarding to keep your business moving forward too. Plus, we help keep your web traffic safe with DNSSEC as standard on all eligible domains.

Domain privacy protection

Domain privacy protection

For increased privacy, a domain privacy service will mask your personal domain data from the publicly accessible Whois database. This also reduces spam and protects you against identity theft. Best of all, it’s included FREE for life with every eligible Namecheap domain you register.

Find a .bio domain alternative

26% off
14% off
11% off
7% off
More domain choices

Perfect partners for your .bio


Starting at $1.58/month

Add secure and reliable hosting to your domain through our affordable plans. You can find the perfect hosting at the perfect price quickly and easily. View all our web hosting plans →

SSL Protection
SSL Protection

Starting at $7.88/year

Choose from top SSL certificates to secure your site data – from personal blogs to global e-commerce. Right now you can get a Comodo PositiveSSL certificate at an exclusive price for your first year of any new registration. View all SSLs →

Premium DNS
Premium DNS

Just $4.88/year

Protect your business from DNS DDoS attacks and data leaks without slowing your site down. Our PremiumDNS gives you speed, security, and a 100% uptime guarantee. Shop our DNS services →

Private Email
Private Email

Free trial

Get fast, intuitive business or personal email that’s synced to your new domain name. All your contacts and calendars in one private, cloud-based platform. Test our email packages FREE for two months. View our private email hosting plans →

Domain Information for .bio

Minimum Registration Period1 year
Maximum Registration Period10 years
Minimum Renewal Period1 year
Maximum Renewal Period9 years
Is Domain Privacy SupportedYES
Are IDN Domains SupportedYES
Is RegistrarLock SupportedYES
Is DNSSEC SupportedYES
ICANN fee$0.18

Want to learn more about TLDs?

Visit our Knowledgebase →


Need help? We're always here for you.