What powers r-lib.org?
Last seen Jun 2026 · 16 technologies across 10 categories
Analytics
Plausible
since Dec 2021
Caching
Varnish
since Apr 2020
CDN
Font scripts
JavaScript graphics
MathJax
since Apr 2020
JavaScript libraries
Clipboard.js
since Apr 2020
Miscellaneous
Open Graph
since Sep 2022
PWA
since May 2025
PaaS
Amazon Web Services
since Aug 2022
GitHub Pages
since Apr 2020
Security
HSTS
since Sep 2022
UI frameworks
Audience
- 100% desktop
Brazil
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.44 / 10 · ranked #20,844 of all domains
898 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 0.4 MB · 28 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| conflicted.r-lib.org | 15 |
| callr.r-lib.org | 14 |
| gargle.r-lib.org | 14 |
| generics.r-lib.org | 14 |
| gmailr.r-lib.org | 14 |
| lintr.r-lib.org | 14 |
| marquee.r-lib.org | 14 |
| ragg.r-lib.org | 14 |
| vctrs.r-lib.org | 14 |
| vroom.r-lib.org | 14 |
| here.r-lib.org | 13 |
| ymlthis.r-lib.org | 13 |
| pkgdown.r-lib.org | 12 |
| rlang.r-lib.org | 12 |
| fs.r-lib.org | 11 |
| mirai.r-lib.org | 11 |
| testthat.r-lib.org | 11 |
| usethis.r-lib.org | 11 |
| clock.r-lib.org | 10 |
| httr2.r-lib.org | 10 |
| pak.r-lib.org | 10 |
| styler.r-lib.org | 10 |
| cli.r-lib.org | 9 |
| httr.r-lib.org | 9 |
Full technology history →
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Recent changes
- dropped Google Analytics Jan 2026
- dropped Google Tag Manager Jan 2026
- dropped Ruby Jan 2026
- dropped Ruby on Rails Jan 2026