8 live Ruby 2.5.1 sites, ready to export.
That's how many Ruby 2.5.1 websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
Pick a ready-made template, or build your own filters in the Lead List Exporter and pay only for the rows you export.
Open the Lead List ExporterJust need a few domains? Export up to 10 free from a subset of our crawl.
Every Ruby 2.5.1 website we detected in the United States.
Only sites where a personal, company-hosted email was found.
Sites with at least one personnel LinkedIn profile.
Start with the highest-traffic end of the dataset.
Limit results to Ruby 2.5.1 websites on .com domains.
Only sites where an organisation phone number was found.
Websites Using Ruby 2.5.1
A sample of live Ruby 2.5.1 sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| okayama-u.ac.jp | August 17, 2026 | |
| hgy-fukuoka.jp | August 16, 2026 | |
| hotmaps.eu | August 12, 2026 | |
| anygis.ru | August 10, 2026 | |
| xunzhangthu.org | August 7, 2026 | |
| shikihime-project.com | July 18, 2026 | |
| 165.172 | June 8, 2026 | |
| klitball.club | November 15, 2025 |
How many websites use Ruby 2.5.1?
We found Ruby 2.5.1 on 8 websites in our August 2026 crawl, across 5 countries.
Which countries use Ruby 2.5.1 the most?
By number of websites, the top countries are United States (38%, 3 sites), Japan (25%, 2 sites), Switzerland (12%, 1 site), Germany (12%, 1 site) and Russia (12%, 1 site). Together they account for 100% of the 8 Ruby 2.5.1 sites we track. 38% of the sites are in Japanese, and .jp is the most used domain ending, on 25% of them.
Where are Ruby 2.5.1 websites hosted?
The networks carrying the most Ruby 2.5.1 sites are DigitalOcean, LLC (3 sites), Amazon.com, Inc. (1 site) and Google LLC (1 site).
What technologies are used with Ruby 2.5.1?
Across the 8 Ruby 2.5.1 sites we track, the technologies most often found alongside it are WEBrick (100%, 8 sites), Ruby on Rails (50%, 4 sites), jQuery (50%, 4 sites), Google Analytics (38%, 3 sites) and Google Tag Manager (25%, 2 sites).
Breakdown of Ruby 2.5.1 websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
WEBrick | 8 |
Ruby on Rails | 4 |
jQuery | 4 |
Google Analytics | 3 |
Google Tag Manager | 2 |
| HSTS | 2 |
HTTP/3 | 2 |
MathJax | 2 |
Nginx | 2 |
Ubuntu | 2 |
|
jQuery CDN | 2 |
All in One SEO Pack | 1 |
Clipboard.js | 1 |
FitVids.JS | 1 |
Font Awesome | 1 |
Prism | 1 |
RequireJS | 1 |
Typekit | 1 |
Underscore.js | 1 |
WordPress | 1 |
|
WordPress Block Editor | 1 |
Yoast SEO | 1 |
bxSlider | 1 |
|
jQuery Migrate | 1 |
jQuery Modal | 1 |
| Language | Sites |
|---|---|
| Japanese | 3 |
| English | 2 |
| Czech | 1 |
| Ganda | 1 |
| Chinese | 1 |
| ASN | Sites |
|---|---|
| DigitalOcean, LLC | 3 |
| Amazon.com, Inc. | 1 |
| Google LLC | 1 |
| Hetzner Online GmbH | 1 |
| SAKURA Internet Inc. | 1 |
| SWITCH | 1 |
| TLD | Sites |
|---|---|
| jp | 2 |
| 172 | 1 |
| club | 1 |
| com | 1 |
| eu | 1 |
| org | 1 |
| ru | 1 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 3 |
| 🇯🇵 Japan | 2 |
| 🇨🇭 Switzerland | 1 |
| 🇩🇪 Germany | 1 |
| 🇷🇺 Russia | 1 |
FAQ
Answers drawn from our latest crawl of Ruby 2.5.1 websites. Anything else, email us and we will look it up.
Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.