NCBI on new websites
Biomedical literature and data APIs including PubMed and E-utilities.
- Sites using NCBI
- 38
- since May 2026
- Last 30 days
- 0.0%
-
of new sites, to Oct 19
no change on the 30 days before - Last 7 days
- 0.0%
- of new sites, 7-day average
no change on the week before
| First seen | May 19, 2026 |
|---|---|
| Last seen | Oct 1, 2026 |
| Website | ncbi.nlm.nih.gov |
What we found
- NCBI appeared on 2 new sites in the last 30 days.[1]
- Nine in ten new NCBI sites also use NLM Data Discovery.
Share of new sites using NCBI
The line is the 7-day average share of new sites that use NCBI, since 10 September.
Who uses NCBI
| Type | Sites | Share | Bar |
|---|---|---|---|
| Health | 6 | 42.9% | |
| AI | 3 | 21.4% | |
| Education | 3 | 21.4% | |
| Crypto | 1 | 7.1% | |
| Productivity | 1 | 7.1% |
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .com | 16 | 42.1% | |
| .app | 8 | 21.1% | |
| .net | 4 | 10.5% | |
| .io | 3 | 7.9% | |
| .me | 2 | 5.3% |
Data API on new sites
| # | Movement | Tool | Share of category | Bar | |
|---|---|---|---|---|---|
| 1 | – |
|
22.9% | ||
| 2 | ▼1 |
|
6.8% | ||
| 3 | ▲1 |
|
5.4% | ||
| 4 | ▼1 |
|
3.6% | ||
| 5 | ▼1 |
|
3.2% | ||
| … | |||||
| 63 | ▼34 |
|
0.3% | ||
All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. Among September launches it ranked #80 in Data API, down from #46 in August. All 1509 in Data API
Often used with NCBI
| Tool | Sites with both | vs all new sites |
|---|---|---|
| NLM Data Discovery | 33 | 119140x |
Tools that turn up far more often on NCBI sites than on new sites in general, and how many times as common each one is there.
Recently launched products built on NCBI
28 of the 38 sites using NCBI are product launches we list individually. The other 10 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.
Showing the most recent 12 of 28.
Watches, exports and the API give you all 38 sites using NCBI, from £15 a month.
Notes
- These figures cover websites that went live since April 2026, not the web as a whole.
How this page is made
FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards NCBI when we detect NCBI on it at that look.
Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites