.bio — 66,826 domains
- Total domains
- 66,826
- Root domains
- 64,886
- Subdomains
- 1,940
Browse 66,826 registered .bio domains in our database. The list includes 64,886 root domains and 1,940 subdomains. Data is updated daily and available for security research, brand monitoring, competitive analysis, and domain intelligence.
View all 66,826 .bio domains with full DNS data, filters, and export.
Sign in to access full listCommon questions about .bio domains
How many .bio domains are registered?
Our database currently indexes 66,826 .bio domains, comprising 64,886 root domains and 1,940 subdomains. This count reflects actively registered domains discovered during our daily crawling cycle.
How fresh is the domain data?
All domain lists are refreshed every 24 hours. New registrations, expirations, and DNS changes propagate within one day — significantly fresher than weekly or monthly alternatives.
Can I export or download the full .bio list?
Yes. Subscribers can download the complete .bio dataset as CSV with domain and TLD columns, plus access enriched DNS records, filters, and streaming exports with no row limits.
What is the difference between root domains and subdomains?
A root domain is a domain registered directly under .bio
(e.g. example.bio). A subdomain is a child
of a root domain (e.g. www.example.bio or
mail.example.bio). Both are included in our .bio
domain list.