mdBook on new websites
Rust-based tool for creating documentation books from Markdown files.
- Sites using mdBook
- 50
- since Jul 2026
- Last 30 days
- 0.0%
-
of new sites, to Oct 18
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 | Jul 2, 2026 |
|---|---|
| Last seen | Oct 19, 2026 |
| Website | rust-lang.github.io |
What we found
- mdBook appeared on 11 new sites in the last 30 days.[1]
- It is the third most common documentation tool on new sites. Starlight appears on about 15 times as many.
- Almost all new mdBook sites also use highlight.js.
Share of new sites using mdBook
The line is the 7-day average share of new sites that use mdBook, since 10 September.
Who uses mdBook
| Type | Sites | Share | Bar |
|---|---|---|---|
| Developer Tools | 21 | 72.4% | |
| Education | 4 | 13.8% | |
| Productivity | 2 | 6.9% | |
| Crypto | 1 | 3.5% | |
| Social | 1 | 3.5% |
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .dev | 14 | 28.0% | |
| .com | 8 | 16.0% | |
| .org | 8 | 16.0% | |
| .io | 6 | 12.0% | |
| .ca | 2 | 4.0% |
Documentation on new sites
| # | Movement | Tool | Share of category | Bar |
|---|---|---|---|---|
| 1 | – |
|
66.6% | |
| 2 | – |
|
12.0% | |
| 3 | – | mdBook | 4.5% | |
| 4 | – |
|
3.4% | |
| 5 | ▲2 |
|
1.8% |
All-time shares across the new sites we track: of all of them, and of the sites using any Documentation tool. All 32 in Documentation
Often used with mdBook
| Tool | Sites with both | vs all new sites |
|---|---|---|
| elasticlunr.js | 49 | 67677x |
| Lunr.js | 49 | 24032x |
|
|
50 | 1593x |
|
|
50 | 486x |
|
|
30 | 31x |
Tools that turn up far more often on mdBook sites than on new sites in general, and how many times as common each one is there.
Recently launched products built on mdBook
16 of the 50 sites using mdBook are product launches we list individually. The other 34 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 16.
Watches, exports and the API give you all 50 sites using mdBook, 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 mdBook when we detect mdBook 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