.BIO domain list & statistics
72,172 domains in the zone-file snapshot — Snapshot:
The .BIO domain list covers every domain name present in the complete zone-file snapshot. Registered domains absent from the zone file are not included, and presence in the zone does not confirm a working website.
The .bio domain signals content related to biology, personal bios, biotechnology and environmental science. It's used by researchers, companies, educators and individuals to present credentials, projects, lab pages or bio-related products with a clear, topical domain name.
Daily update target: 9 AM UTC. Check the snapshot date and coverage notes before using a file.
.BIO domain list file
Gzip-compressed plain text with one .BIO domain per line. Download the names in our current dataset.
- Snapshot date: 03 Oct 2026
- Total domains in the list: 72,172
- File size: 258 kB
- Download from website (with one mouse click!)
- Download via simple HTTP REST API (automate!)
Preview .BIO domain names
An excerpt from the available sample file, not a ranking or a list of domains available to register.
000.bio 76jl.bio aiflow.bio az88.bio bkm88.bio cibo.bio diamon.bio eyz.bio gh333.bio hupalupa.bio jw777.bio linkaty.bio metropolitan.bio newsom.bio paris.bio qh00.bio sasymusic.bio starkraving.bio topclean.bio vnd8.bio
Downloads require an account and appropriate access. See plans and limits and dataset licensing terms.
1. Zone summary: .bio
The .BIO zone contains 72,172 domain names, according to the complete zone-file snapshot dated 03 Oct 2026. In the latest available comparison, from 02 Oct 2026 to 03 Oct 2026, 105 domain names were added to the zone and 60 were removed. The net zone change was +45 domains (net gain).
Complete zone-file coverage. Counts describe domains present in the zone file; registered domains absent from the zone file are excluded. Additions and removals are not independently verified registration or expiration events.
2. .BIO domain statistics - recent observations
Available observations from the last 90 days. Gaps may occur; the table provides dates and counts behind the charts.
| Date | Total domains | Observed additions | Observed removals |
|---|---|---|---|
| 2026-10-03 | 72,172 | + 105 | - 60 |
| 2026-10-02 | 72,127 | + 85 | - 94 |
| 2026-10-01 | 72,136 | + 111 | - 77 |
| 2026-09-30 | 72,102 | + 81 | - 59 |
| 2026-09-29 | 72,080 | + 83 | - 56 |
| 2026-09-28 | 72,053 | + 113 | - 128 |
| 2026-09-27 | 72,068 | + 91 | - 86 |
| 2026-09-26 | 72,063 | + 74 | - 54 |
| 2026-09-25 | 72,043 | + 101 | - 73 |
| 2026-09-24 | 72,015 | + 83 | - 57 |
| 2026-09-23 | 71,989 | + 138 | - 62 |
| 2026-09-22 | 71,913 | + 70 | - 57 |
| 2026-09-21 | 71,900 | + 65 | - 96 |
| 2026-09-20 | 71,931 | + 76 | - 64 |
| 2026-09-19 | 71,919 | + 88 | - 105 |
| 2026-09-18 | 71,936 | + 105 | - 74 |
| 2026-09-17 | 71,905 | + 86 | - 41 |
| 2026-09-16 | 71,860 | + 80 | - 83 |
| 2026-09-15 | 71,863 | + 111 | - 55 |
| 2026-09-14 | 71,807 | + 72 | - 121 |
| 2026-09-13 | 71,856 | + 66 | - 55 |
| 2026-09-12 | 71,845 | + 85 | - 58 |
| 2026-09-11 | 71,818 | + 103 | - 110 |
| 2026-09-10 | 71,825 | + 188 | - 66 |
| 2026-09-09 | 71,703 | + 92 | - 65 |
| 2026-09-08 | 71,676 | + 62 | - 70 |
| 2026-09-07 | 71,684 | + 65 | - 94 |
| 2026-09-06 | 71,713 | + 97 | - 71 |
| 2026-09-05 | 71,687 | + 88 | - 143 |
| 2026-09-04 | 71,742 | + 99 | - 223 |
| 2026-09-03 | 71,866 | + 91 | - 183 |
| 2026-09-02 | 71,958 | + 73 | - 165 |
| 2026-09-01 | 72,050 | + 124 | - 463 |
| 2026-08-31 | 72,389 | + 61 | - 407 |
| 2026-08-30 | 72,735 | + 104 | - 440 |
| 2026-08-29 | 73,071 | + 307 | - 284 |
| 2026-08-28 | 73,048 | + 88 | - 180 |
| 2026-08-27 | 73,140 | + 130 | - 208 |
| 2026-08-26 | 73,218 | + 163 | - 474 |
| 2026-08-25 | 73,529 | 0 | 0 |
| 2026-08-24 | 73,529 | + 93 | - 153 |
| 2026-08-23 | 73,589 | + 110 | - 57 |
| 2026-08-22 | 73,536 | + 385 | - 84 |
| 2026-08-21 | 73,235 | + 117 | - 81 |
| 2026-08-20 | 73,199 | + 339 | - 87 |
| 2026-08-19 | 72,947 | + 87 | - 88 |
| 2026-08-18 | 72,948 | + 319 | - 107 |
| 2026-08-17 | 72,736 | + 86 | - 144 |
| 2026-08-16 | 72,794 | + 241 | - 78 |
| 2026-08-15 | 72,631 | + 548 | - 102 |
| 2026-08-14 | 72,185 | + 614 | - 55 |
| 2026-08-13 | 71,626 | + 85 | - 70 |
| 2026-08-12 | 71,611 | + 248 | - 59 |
| 2026-08-11 | 71,422 | + 73 | - 55 |
| 2026-08-10 | 71,404 | + 144 | - 64 |
| 2026-08-09 | 71,324 | + 159 | - 69 |
| 2026-08-08 | 71,234 | + 174 | - 80 |
| 2026-08-07 | 71,140 | + 157 | - 108 |
| 2026-08-06 | 71,091 | + 194 | - 72 |
| 2026-08-05 | 70,969 | + 414 | - 58 |
| 2026-08-04 | 70,613 | + 293 | - 45 |
| 2026-08-03 | 70,365 | + 73 | - 60 |
| 2026-08-02 | 70,352 | + 131 | - 106 |
| 2026-08-01 | 70,327 | + 100 | - 54 |
| 2026-07-31 | 70,281 | + 517 | - 50 |
| 2026-07-30 | 69,814 | 0 | 0 |
| 2026-07-29 | 69,814 | + 712 | - 188 |
| 2026-07-27 | 69,290 | + 83 | - 57 |
| 2026-07-26 | 69,264 | + 600 | - 85 |
| 2026-07-25 | 68,749 | + 111 | - 68 |
| 2026-07-24 | 68,706 | + 334 | - 80 |
| 2026-07-23 | 68,452 | + 149 | - 305 |
| 2026-07-22 | 68,608 | + 113 | - 80 |
| 2026-07-21 | 68,575 | + 199 | - 77 |
| 2026-07-20 | 68,453 | + 141 | - 64 |
| 2026-07-19 | 68,376 | + 500 | - 184 |
| 2026-07-18 | 68,060 | + 159 | - 70 |
| 2026-07-17 | 67,971 | + 638 | - 59 |
| 2026-07-16 | 67,392 | + 103 | - 344 |
| 2026-07-15 | 67,633 | + 437 | - 137 |
| 2026-07-14 | 67,333 | 0 | 0 |
| 2026-07-13 | 67,333 | + 144 | - 64 |
| 2026-07-12 | 67,253 | + 85 | - 54 |
| 2026-07-11 | 67,222 | + 110 | - 57 |
| 2026-07-10 | 67,169 | + 155 | - 68 |
| 2026-07-09 | 67,082 | + 397 | - 81 |
| 2026-07-08 | 66,766 | + 222 | - 62 |
| 2026-07-07 | 66,606 | + 92 | - 45 |
| 2026-07-06 | 66,559 | + 145 | - 59 |
| 2026-07-05 | 66,473 | + 766 | - 56 |
3. Zone Details: .bio
The .bio top-level domain is used by organizations, companies and individuals publishing content related to biology, biotechnology, ecology, and personal biographies. Common applications include laboratory and research group pages, company product and pipeline descriptions, educator resources, scientist portfolios, and personal biographical profiles.
As a branding signal, .bio communicates subject-matter focus and helps set user expectations by making a site’s purpose immediately clear. It is perceived as specialized and topical rather than strictly commercial, which can help life-science projects, non-profit initiatives, startups and consultants differentiate from generic .com or organizational domains.
Choose .bio when you want concise, descriptive naming that highlights biological content or professional credentials, when your audience includes researchers or environmentally minded consumers, or when desired names are unavailable under mainstream TLDs. Be mindful to support claims with appropriate citations and compliance information for regulated or medical content.
Related zones:
| Zone Name | bio |
|---|---|
| Zone Type | gTLD |
| Assigned by IANA | YES |
| Public registrations allowed | YES |
| WHOIS Server | whois.nic.bio |
| RDAP Server | https://rdap.identitydigital.services/rdap/ |
| Managing Organization | Identity Digital Limited |
| Organization Address |
c/o Identity Digital Limited 10500 NE 8th Street, Suite 750 Bellevue WA 98004 United States of America (the) |
4. Historical Domain Lists for .bio zone
Access the archive of historical .BIO domain lists and analyze how domains in the .BIO namespace have evolved over time. Historical domain data helps researchers and engineers study domain growth, changes in domain-list membership, and long-term internet trends. Archive dates and coverage vary; see historical dataset access.
| Date | Domains | File Size | Download |
|---|---|---|---|
| 2026-10-03 | 72,172 | 258 kB | Download |
| 2026-10-02 | 72,127 | 257 kB | Download |
| 2026-10-01 | 72,136 | 257 kB | Download |
| 2026-09-30 | 72,102 | 257 kB | Download |
| 2026-09-29 | 72,080 | 257 kB | Download |
| 2026-09-28 | 72,053 | 257 kB | Download |
| 2026-09-27 | 72,068 | 257 kB | Download |
| 2026-09-26 | 72,063 | 257 kB | Download |
| 2026-09-25 | 72,043 | 257 kB | Download |
| 2026-09-24 | 72,015 | 257 kB | Download |
| 2026-09-23 | 71,989 | 257 kB | Download |
| 2026-09-22 | 71,913 | 257 kB | Download |
| 2026-09-21 | 71,900 | 257 kB | Download |
| 2026-09-20 | 71,931 | 257 kB | Download |
| 2026-09-19 | 71,919 | 257 kB | Download |
| 2026-09-18 | 71,936 | 257 kB | Download |
| 2026-09-17 | 71,905 | 257 kB | Download |
| 2026-09-16 | 71,860 | 257 kB | Download |
| 2026-09-15 | 71,863 | 257 kB | Download |
| 2026-09-14 | 71,807 | 256 kB | Download |
| 2026-09-13 | 71,856 | 257 kB | Download |
| 2026-09-12 | 71,845 | 257 kB | Download |
| 2026-09-11 | 71,818 | 256 kB | Download |
| 2026-09-10 | 71,825 | 257 kB | Download |
| 2026-09-09 | 71,703 | 256 kB | Download |
| 2026-09-08 | 71,676 | 256 kB | Download |
| 2026-09-07 | 71,684 | 256 kB | Download |
| 2026-09-06 | 71,713 | 256 kB | Download |
| 2026-09-05 | 71,687 | 256 kB | Download |
| 2026-09-04 | 71,742 | 257 kB | Download |
| 2026-09-03 | 71,866 | 257 kB | Download |
| 2026-09-02 | 71,958 | 258 kB | Download |
| 2026-09-01 | 72,050 | 258 kB | Download |
| 2026-08-31 | 72,389 | 260 kB | Download |
| 2026-08-30 | 72,735 | 261 kB | Download |
| 2026-08-29 | 73,071 | 262 kB | Download |
| 2026-08-28 | 73,048 | 263 kB | Download |
| 2026-08-27 | 73,140 | 263 kB | Download |
| 2026-08-26 | 73,218 | 264 kB | Download |
| 2026-08-25 | 73,529 | 265 kB | Download |
| 2026-08-24 | 73,529 | 265 kB | Download |
| 2026-08-23 | 73,589 | 265 kB | Download |
| 2026-08-22 | 73,536 | 265 kB | Download |
| 2026-08-21 | 73,235 | 264 kB | Download |
| 2026-08-20 | 73,199 | 264 kB | Download |
| 2026-08-19 | 72,947 | 264 kB | Download |
| 2026-08-18 | 72,948 | 264 kB | Download |
| 2026-08-17 | 72,736 | 263 kB | Download |
| 2026-08-16 | 72,794 | 264 kB | Download |
| 2026-08-15 | 72,631 | 263 kB | Download |
| 2026-08-14 | 72,185 | 262 kB | Download |
| 2026-08-13 | 71,626 | 261 kB | Download |
| 2026-08-12 | 71,611 | 261 kB | Download |
| 2026-08-11 | 71,422 | 260 kB | Download |
| 2026-08-10 | 71,404 | 260 kB | Download |
| 2026-08-09 | 71,324 | 260 kB | Download |
| 2026-08-08 | 71,234 | 260 kB | Download |
| 2026-08-07 | 71,140 | 260 kB | Download |
| 2026-08-06 | 71,091 | 260 kB | Download |
| 2026-08-05 | 70,969 | 260 kB | Download |
| 2026-08-04 | 70,613 | 258 kB | Download |
| 2026-08-03 | 70,365 | 258 kB | Download |
| 2026-08-02 | 70,352 | 258 kB | Download |
| 2026-08-01 | 70,327 | 258 kB | Download |
| 2026-07-31 | 70,281 | 257 kB | Download |
| 2026-07-30 | 69,814 | 256 kB | Download |
| 2026-07-29 | 69,814 | 256 kB | Download |
| 2026-07-27 | 69,290 | 255 kB | Download |
| 2026-07-26 | 69,264 | 255 kB | Download |
| 2026-07-25 | 68,749 | 254 kB | Download |
| 2026-07-24 | 68,706 | 253 kB | Download |
| 2026-07-23 | 68,452 | 253 kB | Download |
| 2026-07-22 | 68,608 | 253 kB | Download |
| 2026-07-21 | 68,575 | 253 kB | Download |
| 2026-07-20 | 68,453 | 253 kB | Download |
| 2026-07-19 | 68,376 | 253 kB | Download |
| 2026-07-18 | 68,060 | 251 kB | Download |
| 2026-07-17 | 67,971 | 251 kB | Download |
| 2026-07-16 | 67,392 | 250 kB | Download |
| 2026-07-15 | 67,633 | 251 kB | Download |
| 2026-07-14 | 67,333 | 250 kB | Download |
| 2026-07-13 | 67,333 | 250 kB | Download |
| 2026-07-12 | 67,253 | 250 kB | Download |
| 2026-07-11 | 67,222 | 250 kB | Download |
| 2026-07-10 | 67,169 | 249 kB | Download |
| 2026-07-09 | 67,082 | 249 kB | Download |
| 2026-07-08 | 66,766 | 248 kB | Download |
| 2026-07-07 | 66,606 | 248 kB | Download |
| 2026-07-06 | 66,559 | 248 kB | Download |
| 2026-07-05 | 66,473 | 248 kB | Download |
| 2026-07-04 | 65,763 | 246 kB | Download |
| 2026-07-03 | 65,572 | 245 kB | Download |
| 2026-07-02 | 65,015 | 244 kB | Download |
| 2026-07-01 | 64,949 | 244 kB | Download |
| 2026-06-30 | 64,805 | 243 kB | Download |
| 2026-06-29 | 64,739 | 243 kB | Download |
| 2026-06-28 | 64,731 | 243 kB | Download |
| 2026-06-27 | 64,713 | 243 kB | Download |
| 2026-06-26 | 64,705 | 243 kB | Download |
| 2026-06-25 | 64,692 | 243 kB | Download |
| 2026-06-24 | 64,349 | 242 kB | Download |
| 2026-06-23 | 63,992 | 241 kB | Download |
| 2026-06-22 | 63,957 | 241 kB | Download |
| 2026-06-21 | 63,427 | 240 kB | Download |
| 2026-06-20 | 63,329 | 239 kB | Download |
| 2026-06-19 | 63,310 | 239 kB | Download |
| 2026-06-18 | 62,481 | 237 kB | Download |
| 2026-06-17 | 62,302 | 237 kB | Download |
| 2026-06-16 | 62,185 | 236 kB | Download |
| 2026-06-15 | 62,047 | 236 kB | Download |
| 2026-06-14 | 62,006 | 236 kB | Download |
| 2026-06-13 | 61,939 | 236 kB | Download |
| 2026-06-12 | 61,770 | 235 kB | Download |
| 2026-06-11 | 61,567 | 235 kB | Download |
| 2026-06-10 | 61,250 | 234 kB | Download |
| 2026-06-09 | 60,238 | 231 kB | Download |
| 2026-06-08 | 59,642 | 229 kB | Download |
| 2026-06-07 | 59,486 | 229 kB | Download |
| 2026-06-06 | 59,138 | 228 kB | Download |
| 2026-06-05 | 59,031 | 228 kB | Download |
| 2026-06-04 | 58,734 | 227 kB | Download |
| 2026-06-03 | 58,691 | 227 kB | Download |
| 2026-06-02 | 57,526 | 224 kB | Download |
| 2026-06-01 | 56,638 | 221 kB | Download |
| 2026-05-31 | 56,607 | 221 kB | Download |
| 2026-05-30 | 56,691 | 222 kB | Download |
| 2026-05-29 | 56,555 | 221 kB | Download |
| 2026-05-28 | 56,492 | 221 kB | Download |
| 2026-05-27 | 56,384 | 221 kB | Download |
| 2026-05-26 | 56,266 | 220 kB | Download |
| 2026-05-25 | 56,180 | 220 kB | Download |
| 2026-05-24 | 56,209 | 220 kB | Download |
| 2026-05-23 | 56,293 | 221 kB | Download |
| 2026-05-22 | 55,766 | 220 kB | Download |
| 2026-05-21 | 55,516 | 220 kB | Download |
| 2026-05-20 | 55,422 | 220 kB | Download |
| 2026-05-19 | 55,912 | 223 kB | Download |
| 2026-05-18 | 55,844 | 222 kB | Download |
| 2026-05-17 | 55,330 | 221 kB | Download |
| 2026-05-16 | 55,239 | 221 kB | Download |
| 2026-05-15 | 55,184 | 221 kB | Download |
| 2026-05-14 | 55,156 | 220 kB | Download |
| 2026-05-13 | 55,077 | 220 kB | Download |
| 2026-05-12 | 55,019 | 220 kB | Download |
| 2026-05-11 | 54,799 | 219 kB | Download |
| 2026-05-10 | 54,858 | 219 kB | Download |
| 2026-05-09 | 54,814 | 219 kB | Download |
| 2026-05-08 | 54,718 | 219 kB | Download |
| 2026-05-07 | 54,614 | 218 kB | Download |
| 2026-05-06 | 54,523 | 218 kB | Download |
| 2026-05-05 | 54,497 | 218 kB | Download |
| 2026-05-04 | 54,485 | 218 kB | Download |
| 2026-05-03 | 54,555 | 218 kB | Download |
| 2026-05-02 | 54,560 | 218 kB | Download |
| 2026-05-01 | 54,569 | 219 kB | Download |
| 2026-04-30 | 54,569 | 219 kB | Download |
| 2026-04-29 | 54,521 | 218 kB | Download |
| 2026-04-28 | 54,501 | 218 kB | Download |
| 2026-04-27 | 54,367 | 218 kB | Download |
| 2026-04-26 | 54,431 | 218 kB | Download |
| 2026-04-25 | 54,437 | 218 kB | Download |
| 2026-04-24 | 54,395 | 218 kB | Download |
| 2026-04-23 | 54,360 | 218 kB | Download |
| 2026-04-22 | 54,322 | 218 kB | Download |
| 2026-04-21 | 54,320 | 218 kB | Download |
| 2026-04-20 | 54,214 | 218 kB | Download |
| 2026-04-19 | 54,207 | 218 kB | Download |
| 2026-04-18 | 54,292 | 218 kB | Download |
| 2026-04-17 | 54,261 | 218 kB | Download |
| 2026-04-16 | 54,282 | 218 kB | Download |
| 2026-04-15 | 54,259 | 218 kB | Download |
| 2026-04-14 | 54,222 | 218 kB | Download |
| 2026-04-13 | 54,217 | 218 kB | Download |
| 2026-04-12 | 54,248 | 218 kB | Download |
| 2026-04-11 | 54,264 | 218 kB | Download |
| 2026-04-10 | 54,233 | 218 kB | Download |
| 2026-04-09 | 54,178 | 218 kB | Download |
| 2026-04-08 | 54,173 | 218 kB | Download |
| 2026-04-07 | 54,153 | 218 kB | Download |
| 2026-04-06 | 54,142 | 218 kB | Download |
| 2026-04-05 | 54,171 | 218 kB | Download |
| 2026-04-04 | 54,156 | 218 kB | Download |
| 2026-04-03 | 54,147 | 218 kB | Download |
| 2026-04-02 | 54,138 | 218 kB | Download |
| 2026-04-01 | 54,137 | 218 kB | Download |
| 2026-03-31 | 54,181 | 218 kB | Download |
| 2026-03-30 | 54,141 | 218 kB | Download |
| 2026-03-29 | 54,150 | 218 kB | Download |
| 2026-03-28 | 54,210 | 219 kB | Download |
| 2026-03-27 | 54,145 | 218 kB | Download |
| 2026-03-26 | 54,168 | 219 kB | Download |
| 2026-03-25 | 54,112 | 218 kB | Download |
| 2026-03-24 | 54,097 | 218 kB | Download |
| 2026-03-23 | 54,219 | 219 kB | Download |
| 2026-03-22 | 54,233 | 219 kB | Download |
| 2026-03-21 | 54,288 | 219 kB | Download |
| 2026-03-20 | 54,411 | 220 kB | Download |
| 2026-03-19 | 54,300 | 219 kB | Download |
| 2026-03-18 | 54,328 | 219 kB | Download |
| 2026-03-17 | 54,298 | 219 kB | Download |
| 2026-03-16 | 54,314 | 219 kB | Download |
| 2026-03-15 | 54,344 | 219 kB | Download |
| 2026-03-14 | 54,302 | 219 kB | Download |
| 2026-03-13 | 54,278 | 219 kB | Download |
| 2026-03-12 | 54,258 | 219 kB | Download |
| 2026-03-11 | 54,240 | 219 kB | Download |
| 2026-03-10 | 54,209 | 219 kB | Download |
| 2026-03-09 | 54,178 | 219 kB | Download |
| 2026-03-08 | 54,210 | 219 kB | Download |
| 2026-03-07 | 54,157 | 219 kB | Download |
| 2026-03-06 | 54,125 | 219 kB | Download |
| 2026-03-05 | 54,120 | 219 kB | Download |
| 2026-03-04 | 54,097 | 219 kB | Download |
| 2026-03-03 | 54,057 | 218 kB | Download |
| 2026-03-02 | 54,044 | 218 kB | Download |
| 2026-03-01 | 54,063 | 219 kB | Download |
| 2026-02-28 | 54,049 | 219 kB | Download |
| 2026-02-27 | 54,071 | 219 kB | Download |
| 2026-02-26 | 54,072 | 219 kB | Download |
| 2026-02-25 | 54,080 | 219 kB | Download |
| 2026-02-24 | 53,957 | 218 kB | Download |
| 2026-02-23 | 53,952 | 218 kB | Download |
| 2026-02-22 | 53,998 | 218 kB | Download |
| 2026-02-21 | 53,958 | 218 kB | Download |
| 2026-02-20 | 54,043 | 219 kB | Download |
| 2026-02-19 | 54,005 | 218 kB | Download |
| 2026-02-18 | 53,978 | 218 kB | Download |
| 2026-02-17 | 53,965 | 218 kB | Download |
| 2026-02-16 | 53,965 | 218 kB | Download |
| 2026-02-15 | 54,121 | 219 kB | Download |
| 2026-02-14 | 54,131 | 219 kB | Download |
| 2026-02-13 | 54,024 | 218 kB | Download |
| 2026-02-12 | 54,005 | 218 kB | Download |
| 2026-02-11 | 53,990 | 218 kB | Download |
| 2026-02-10 | 53,979 | 218 kB | Download |
| 2026-02-09 | 53,961 | 218 kB | Download |
| 2026-02-08 | 54,148 | 219 kB | Download |
| 2026-02-07 | 54,156 | 219 kB | Download |
| 2026-02-06 | 54,120 | 219 kB | Download |
| 2026-02-05 | 54,394 | 220 kB | Download |
| 2026-02-04 | 54,390 | 220 kB | Download |
| 2026-02-03 | 54,350 | 219 kB | Download |
| 2026-02-02 | 54,334 | 219 kB | Download |
| 2026-02-01 | 54,373 | 220 kB | Download |
| 2026-01-31 | 54,390 | 220 kB | Download |
| 2026-01-30 | 54,411 | 220 kB | Download |
| 2026-01-29 | 54,460 | 220 kB | Download |
| 2026-01-28 | 54,453 | 220 kB | Download |
| 2026-01-27 | 54,419 | 220 kB | Download |
| 2026-01-26 | 54,405 | 220 kB | Download |
| 2026-01-25 | 54,463 | 220 kB | Download |
| 2026-01-24 | 54,477 | 220 kB | Download |
| 2026-01-23 | 54,495 | 220 kB | Download |
| 2026-01-22 | 54,536 | 220 kB | Download |
| 2026-01-21 | 54,536 | 220 kB | Download |
| 2026-01-20 | 54,555 | 220 kB | Download |
| 2026-01-19 | 54,562 | 221 kB | Download |
| 2026-01-18 | 54,617 | 221 kB | Download |
| 2026-01-17 | 54,640 | 221 kB | Download |
| 2026-01-16 | 54,628 | 221 kB | Download |
| 2026-01-15 | 54,631 | 221 kB | Download |
| 2026-01-14 | 54,622 | 221 kB | Download |
| 2026-01-13 | 54,624 | 221 kB | Download |
| 2026-01-12 | 54,621 | 221 kB | Download |
| 2026-01-11 | 54,664 | 221 kB | Download |
| 2026-01-10 | 54,712 | 221 kB | Download |
| 2026-01-09 | 54,713 | 221 kB | Download |
| 2026-01-08 | 54,699 | 221 kB | Download |
| 2026-01-07 | 54,683 | 221 kB | Download |
| 2026-01-06 | 54,673 | 221 kB | Download |
| 2026-01-05 | 54,667 | 221 kB | Download |
| 2026-01-04 | 54,697 | 222 kB | Download |
| 2026-01-03 | 54,714 | 222 kB | Download |
| 2026-01-02 | 54,738 | 222 kB | Download |
| 2026-01-01 | 54,749 | 222 kB | Download |
| 2025-12-31 | 54,763 | 222 kB | Download |
| 2025-12-30 | 54,757 | 222 kB | Download |
| 2025-12-29 | 54,744 | 222 kB | Download |
| 2025-12-28 | 54,741 | 222 kB | Download |
| 2025-12-27 | 54,753 | 222 kB | Download |
| 2025-12-26 | 54,769 | 222 kB | Download |
| 2025-12-25 | 54,793 | 222 kB | Download |
| 2025-12-24 | 54,818 | 222 kB | Download |
| 2025-12-23 | 54,803 | 222 kB | Download |
| 2025-12-22 | 54,804 | 222 kB | Download |
| 2025-12-21 | 54,808 | 222 kB | Download |
| 2025-12-20 | 54,836 | 222 kB | Download |
| 2025-12-19 | 54,851 | 223 kB | Download |
| 2025-12-18 | 54,869 | 223 kB | Download |
| 2025-12-17 | 54,879 | 223 kB | Download |
| 2025-12-16 | 54,906 | 223 kB | Download |
| 2025-12-15 | 54,890 | 223 kB | Download |
| 2025-12-14 | 54,890 | 223 kB | Download |
| 2025-12-13 | 54,905 | 223 kB | Download |
| 2025-12-12 | 54,912 | 223 kB | Download |
| 2025-12-11 | 54,892 | 223 kB | Download |
| 2025-12-10 | 54,878 | 223 kB | Download |
| 2025-12-09 | 54,872 | 223 kB | Download |
| 2025-12-08 | 54,870 | 223 kB | Download |
| 2025-12-07 | 54,885 | 223 kB | Download |
| 2025-12-06 | 54,880 | 224 kB | Download |
| 2025-12-05 | 54,874 | 224 kB | Download |
| 2025-12-04 | 54,873 | 224 kB | Download |
| 2025-12-03 | 54,859 | 224 kB | Download |
| 2025-12-02 | 54,840 | 224 kB | Download |
| 2025-12-01 | 54,849 | 224 kB | Download |
| 2025-11-30 | 54,858 | 224 kB | Download |
| 2025-11-29 | 54,889 | 224 kB | Download |
| 2025-11-28 | 54,902 | 224 kB | Download |
| 2025-11-27 | 54,947 | 224 kB | Download |
| 2025-11-26 | 54,952 | 224 kB | Download |
| 2025-11-25 | 54,938 | 224 kB | Download |
| 2025-11-24 | 54,950 | 224 kB | Download |
| 2025-11-23 | 54,946 | 224 kB | Download |
| 2025-11-22 | 54,917 | 224 kB | Download |
| 2025-11-21 | 54,903 | 224 kB | Download |
| 2025-11-20 | 54,901 | 224 kB | Download |
| 2025-11-19 | 54,894 | 224 kB | Download |
| 2025-11-18 | 54,870 | 224 kB | Download |
| 2025-11-17 | 54,856 | 224 kB | Download |
| 2025-11-16 | 54,875 | 224 kB | Download |
| 2025-11-15 | 54,857 | 224 kB | Download |
| 2025-11-14 | 54,836 | 224 kB | Download |
| 2025-11-13 | 54,788 | 224 kB | Download |
| 2025-11-12 | 54,745 | 224 kB | Download |
| 2025-11-11 | 54,732 | 224 kB | Download |
| 2025-11-10 | 54,676 | 224 kB | Download |
| 2025-11-09 | 54,670 | 224 kB | Download |
| 2025-11-08 | 54,638 | 224 kB | Download |
| 2025-11-07 | 54,620 | 223 kB | Download |
| 2025-11-06 | 54,573 | 223 kB | Download |
| 2025-11-05 | 54,592 | 223 kB | Download |
| 2025-11-04 | 54,566 | 223 kB | Download |
| 2025-11-03 | 54,552 | 223 kB | Download |
| 2025-11-02 | 54,531 | 223 kB | Download |
| 2025-11-01 | 54,509 | 223 kB | Download |
| 2025-10-31 | 54,521 | 223 kB | Download |
| 2025-10-30 | 54,513 | 223 kB | Download |
| 2025-10-29 | 54,476 | 223 kB | Download |
| 2025-10-28 | 54,455 | 223 kB | Download |
| 2025-10-27 | 54,469 | 223 kB | Download |
| 2025-10-26 | 54,472 | 223 kB | Download |
| 2025-10-25 | 54,471 | 223 kB | Download |
| 2025-10-24 | 54,416 | 223 kB | Download |
| 2025-10-23 | 54,385 | 223 kB | Download |
| 2025-10-22 | 54,354 | 223 kB | Download |
| 2025-10-21 | 54,297 | 222 kB | Download |
| 2025-10-20 | 54,269 | 222 kB | Download |
| 2025-10-19 | 54,243 | 222 kB | Download |
| 2025-10-18 | 54,252 | 222 kB | Download |
| 2025-10-17 | 54,255 | 223 kB | Download |
| 2025-10-16 | 54,234 | 222 kB | Download |
| 2025-10-15 | 54,200 | 222 kB | Download |
| 2025-10-14 | 54,180 | 222 kB | Download |
| 2025-10-13 | 54,131 | 222 kB | Download |
| 2025-10-12 | 54,096 | 222 kB | Download |
| 2025-10-11 | 54,091 | 222 kB | Download |
| 2025-10-10 | 54,070 | 222 kB | Download |
| 2025-10-09 | 54,003 | 222 kB | Download |
| 2025-10-08 | 53,986 | 222 kB | Download |
| 2025-10-07 | 53,962 | 222 kB | Download |
| 2025-10-06 | 53,935 | 222 kB | Download |
| 2025-10-05 | 53,910 | 222 kB | Download |
| 2025-10-04 | 53,885 | 222 kB | Download |
| 2025-10-03 | 53,844 | 221 kB | Download |
| 2025-10-02 | 53,888 | 222 kB | Download |
| 2025-10-01 | 53,878 | 222 kB | Download |
| 2025-09-30 | 53,768 | 221 kB | Download |
| 2025-09-29 | 53,691 | 221 kB | Download |
| 2025-09-28 | 53,703 | 221 kB | Download |
| 2025-09-27 | 53,689 | 221 kB | Download |
| 2025-09-26 | 53,631 | 221 kB | Download |
| 2025-09-25 | 53,552 | 220 kB | Download |
| 2025-09-24 | 53,520 | 220 kB | Download |
| 2025-09-23 | 53,508 | 220 kB | Download |
| 2025-09-22 | 53,536 | 220 kB | Download |
| 2025-09-21 | 53,535 | 220 kB | Download |
| 2025-09-20 | 53,539 | 220 kB | Download |
| 2025-09-19 | 53,535 | 220 kB | Download |
| 2025-09-18 | 53,538 | 220 kB | Download |
| 2025-09-17 | 53,516 | 220 kB | Download |
| 2025-09-16 | 53,512 | 220 kB | Download |
| 2025-09-15 | 53,489 | 220 kB | Download |
| 2025-09-14 | 53,533 | 220 kB | Download |
| 2025-09-13 | 53,574 | 220 kB | Download |
| 2025-09-12 | 53,548 | 220 kB | Download |
| 2025-09-11 | 53,539 | 220 kB | Download |
| 2025-09-10 | 53,547 | 220 kB | Download |
| 2025-09-09 | 53,493 | 220 kB | Download |
| 2025-09-08 | 53,468 | 220 kB | Download |
| 2025-09-07 | 53,484 | 220 kB | Download |
| 2025-09-06 | 53,500 | 220 kB | Download |
| 2025-09-05 | 53,504 | 220 kB | Download |
| 2025-09-04 | 53,510 | 220 kB | Download |
| 2025-09-03 | 53,494 | 220 kB | Download |
| 2025-09-02 | 53,469 | 220 kB | Download |
| 2025-09-01 | 53,469 | 220 kB | Download |
| 2025-08-31 | 53,476 | 220 kB | Download |
| 2025-08-30 | 53,488 | 220 kB | Download |
| 2025-08-29 | 53,497 | 220 kB | Download |
| 2025-08-28 | 53,480 | 220 kB | Download |
| 2025-08-27 | 53,491 | 220 kB | Download |
| 2025-08-26 | 53,479 | 220 kB | Download |
| 2025-08-25 | 53,476 | 220 kB | Download |
| 2025-08-24 | 53,483 | 220 kB | Download |
| 2025-08-23 | 53,484 | 220 kB | Download |
| 2025-08-22 | 53,493 | 220 kB | Download |
| 2025-08-21 | 53,471 | 220 kB | Download |
| 2025-08-20 | 53,463 | 220 kB | Download |
| 2025-08-19 | 53,438 | 220 kB | Download |
| 2025-08-18 | 53,419 | 220 kB | Download |
| 2025-08-17 | 53,417 | 220 kB | Download |
| 2025-08-16 | 53,447 | 220 kB | Download |
| 2025-08-15 | 53,415 | 220 kB | Download |
| 2025-08-14 | 53,390 | 220 kB | Download |
| 2025-08-13 | 53,369 | 220 kB | Download |
| 2025-08-12 | 53,353 | 220 kB | Download |
| 2025-08-11 | 53,318 | 220 kB | Download |
| 2025-08-10 | 53,315 | 220 kB | Download |
| 2025-08-09 | 53,273 | 219 kB | Download |
| 2025-08-08 | 53,397 | 220 kB | Download |
| 2025-08-07 | 53,515 | 220 kB | Download |
| 2025-08-06 | 53,474 | 220 kB | Download |
| 2025-08-05 | 53,424 | 220 kB | Download |
| 2025-08-04 | 53,367 | 220 kB | Download |
| 2025-08-03 | 53,369 | 220 kB | Download |
| 2025-08-02 | 53,330 | 219 kB | Download |
| 2025-08-01 | 53,325 | 219 kB | Download |
| 2025-07-31 | 53,383 | 220 kB | Download |
| 2025-07-30 | 53,337 | 219 kB | Download |
| 2025-07-29 | 53,285 | 219 kB | Download |
| 2025-07-28 | 53,350 | 219 kB | Download |
| 2025-07-27 | 53,357 | 219 kB | Download |
| 2025-07-26 | 53,320 | 219 kB | Download |
| 2025-07-25 | 53,272 | 219 kB | Download |
| 2025-07-24 | 53,245 | 219 kB | Download |
| 2025-07-23 | 53,152 | 219 kB | Download |
| 2025-07-22 | 53,037 | 218 kB | Download |
| 2025-07-21 | 52,694 | 217 kB | Download |
| 2025-07-20 | 52,607 | 216 kB | Download |
| 2025-07-19 | 52,502 | 216 kB | Download |
| 2025-07-18 | 52,589 | 216 kB | Download |
| 2025-07-17 | 51,807 | 213 kB | Download |
| 2025-07-16 | 51,601 | 212 kB | Download |
| 2025-07-14 | 50,902 | 209 kB | Download |
| 2025-07-13 | 50,896 | 209 kB | Download |
| 2025-07-12 | 50,914 | 209 kB | Download |
| 2025-07-11 | 50,879 | 209 kB | Download |
| 2025-07-10 | 50,881 | 209 kB | Download |
| 2025-07-09 | 50,872 | 209 kB | Download |
| 2025-07-08 | 50,842 | 209 kB | Download |
| 2025-07-07 | 50,794 | 208 kB | Download |
| 2025-07-06 | 50,716 | 208 kB | Download |
| 2025-07-05 | 50,719 | 208 kB | Download |
| 2025-07-04 | 50,617 | 208 kB | Download |
| 2025-07-03 | 50,548 | 207 kB | Download |
| 2025-07-02 | 50,521 | 207 kB | Download |
| 2025-07-01 | 50,491 | 207 kB | Download |
| 2025-06-30 | 50,464 | 207 kB | Download |
| 2025-06-29 | 50,435 | 207 kB | Download |
| 2025-06-28 | 50,438 | 207 kB | Download |
| 2025-06-27 | 50,438 | 207 kB | Download |
| 2025-06-26 | 50,404 | 207 kB | Download |
| 2025-06-25 | 50,356 | 206 kB | Download |
| 2025-06-24 | 50,339 | 206 kB | Download |
| 2025-06-23 | 50,321 | 206 kB | Download |
| 2025-06-22 | 50,327 | 206 kB | Download |
5. Download latest .bio domain list via API
import axios from 'axios';
import fs from 'fs';
import { pipeline } from 'stream/promises';
const response = await axios({
method: 'GET',
url: 'https://allzonefiles.io/api/v1/zones/bio/dl',
responseType: 'stream',
headers: {
// Replace with your API key
'Authorization': 'Bearer allzfio_5c1572d016b846ce99ce7a177922ff21'
}
});
await pipeline(response.data, fs.createWriteStream('bio.txt.gz'));
console.log('Download complete!');
package main
import (
"io"
"net/http"
"os"
)
func main() {
url := "https://allzonefiles.io/api/v1/zones/bio/dl"
file, _ := os.Create("bio.txt.gz")
defer out.Close()
req, _ := http.NewRequest("GET", url, nil)
// Replace with your API key
req.Header.Set("Authorization", "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21")
resp, _ := http.DefaultClient.Do(req)
defer resp.Body.Close()
io.Copy(out, resp.Body)
}
import requests
url = "https://allzonefiles.io/api/v1/zones/bio/dl"
# Replace with your API key
headers = {"Authorization": "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21"}
with requests.get(url, headers=headers, stream=True) as r:
r.raise_for_status()
with open("bio.txt.gz", "wb") as f:
for chunk in r.iter_content(chunk_size=128*1024):
f.write(chunk)
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class FileDownloader {
public static void main(String[] args) throws Exception {
URL url = new URL("https://allzonefiles.io/api/v1/zones/bio/dl");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
// Replace with your API key
connection.setRequestProperty("Authorization", "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21");
try (InputStream in = connection.getInputStream();
FileOutputStream out = new FileOutputStream("bio.txt.gz")) {
byte[] buffer = new byte[8192];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
}
}
System.out.println("Download complete!");
}
}
Coverage and methodology for .BIO data
The downloadable file contains domain names from available sources, one per line in gzip-compressed plain text. It is a domain list, not a raw DNS zone file containing resource records, a WHOIS export, or a verified list of active websites.
Complete zone-file coverage. The .BIO domain list covers every domain name present in the complete zone-file snapshot. Registered domains absent from the zone file are not included, and presence in the zone does not confirm a working website.
Additions and removals describe observed changes between dataset observations, not confirmed registrations or expirations; source changes and gaps can also affect counts. The coverage label describes the current dataset and does not establish comparable coverage across historical snapshots. Verify registration status separately before outreach, security decisions, or domain purchases.
The daily update target is 9 AM UTC. Use each file's snapshot date when scheduling imports or comparing archives; delivery can be affected by source delays. Historical availability varies by zone and date.
For reproducible analysis, record the zone, snapshot date, downloaded filename, and filtering rules. Usage is subject to our dataset license; enterprise and redistribution licensing is available separately.
Use .BIO domain data in your workflow
Monitor brands and threats
Filter domain names for brand terms and investigate candidates with additional evidence.
Brand monitoring with Python · Security analysisStudy namespace changes
Compare dated snapshots to measure observed growth and removals.
Market intelligence · Reproducible researchBuild a domain database
Automate authenticated downloads and import the list into your data pipeline.
Data engineering with Python · API documentationCompare all domain lists, access historical datasets, or download all available zones in one ZIP.
.BIO domain list questions
How many .BIO domains are in the zone?
The .BIO zone contains 72,172 domain names in the complete zone-file snapshot dated 03 Oct 2026. Registered domains absent from the zone file are excluded.
Is this a complete .BIO domain list?
The .BIO domain list covers every domain name present in the complete zone-file snapshot. Registered domains absent from the zone file are not included, and presence in the zone does not confirm a working website.
How do I download the .BIO domain list?
Sign in with an account that has download access and use Download Domain List above, or automate the download with the API examples. Check plans and download limits before subscribing.
What format is the download?
A gzip-compressed plain-text file with one domain name per line. It contains domain names rather than DNS resource records, registration contact details, or website content.
Can I download historical .BIO lists?
Available dates appear in the historical domain list table. Archive coverage varies, and downloads require historical access. See historical datasets for details.
Are removed domains expired or available to register?
Removal from an observed list does not establish expiration or availability. Check current registry or registrar information before attempting to register a name. The same limitation applies to expired / removed domain datasets.
When is the dataset updated?
All datasets have a daily update target of 9 AM UTC. Check the displayed snapshot date because source availability and delivery delays can affect individual files.