.bio — 51,049 domains
- Total domains
- 51,049
- Root domains
- 49,609
- Subdomains
- 1,440
Browse 51,049 registered .bio domains in our database. The list includes 49,609 root domains and 1,440 subdomains. Data is updated daily and available for security research, brand monitoring, competitive analysis, and domain intelligence.
Domain names
Showing first 100 of 51,049View all 51,049 .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 51,049 .bio domains, comprising 49,609 root domains and 1,440 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.