Fly.io
Fly.io is an application hosting platform that runs apps and databases in lightweight virtual machines in data centres around the world, close to users. Developers deploy containers with a command-line tool and scale them across regions, with managed Postgres, volumes and private networking available. Pricing is usage-based, billed by compute, storage and traffic. Sites hosted on Fly.io are run by developer-led teams, an audience for developer tool vendors, observability providers and competing cloud platforms.
Fly.io serves 53,200 websites, which is 0.3% of all PaaS detections we record. Websites on Fly.io are most often served from United States (45,373), Germany (49) and Japan (8), and .com, .app and .org are the most common domain endings.
Websites using Fly.io
Preview filters with coarse ranges. Exact ranks and registration dates are available in the dashboard when you download a list.
53,200 websites. Sign in to download the full list (free sample below, full lists from $69/mo)
23 days ago 5,081 websites used Fly.io; today it is 53,200 (+947%).
Top countries for Fly.io
Top TLDs
Sample of 15 websites using Fly.io
best-ranked first; the full list has 53,200| Domain | Country | Majestic rank | NetAPI rank | Contacts | First seen |
|---|---|---|---|---|---|
| dreamhost.com | - | 878 | 1,722 | phone | 2026-10-09 |
| palletsprojects.com | US | 3,411 | 7,965 | 2026-10-09 | |
| magicly.bio | - | 9,887 | 18,061 | 2026-10-13 | |
| samaltman.com | US | 11,358 | 21,869 | 2026-10-09 | |
| fly.io | US | 14,391 | 24,308 | 2026-10-12 | |
| filippo.io | US | 15,154 | 27,801 | 2026-10-11 | |
| shields.io | - | 21,276 | 29,295 | 2026-10-10 | |
| zulti.com | - | - | 48,233 | 2026-10-16 | |
| b-cd.app | - | - | 50,513 | 2026-10-15 | |
| mujyosi.store | - | - | 56,586 | 2026-10-10 | |
| propanium.com | US | - | 58,439 | 2026-10-09 | |
| saucepan.ai | US | - | 58,968 | 2026-10-13 | |
| historyofinformation.com | - | 23,926 | 64,106 | 2026-10-28 | |
| raiselysite.com | US | 25,070 | 64,255 | 2026-10-17 | |
| reactrouter.com | US | 34,895 | 75,249 | 2026-10-09 |
Websites that started using Fly.io in the last 30 days
sample of 15; the full list has 53,200Period:last 7 dayslast 14 dayslast 30 dayslast 60 dayslast 90 days
| Domain | Country | Majestic rank | NetAPI rank | Contacts | First seen |
|---|---|---|---|---|---|
| dreamhost.com | - | 878 | 1,722 | phone | 2026-10-09 |
| palletsprojects.com | US | 3,411 | 7,965 | 2026-10-09 | |
| magicly.bio | - | 9,887 | 18,061 | 2026-10-13 | |
| samaltman.com | US | 11,358 | 21,869 | 2026-10-09 | |
| fly.io | US | 14,391 | 24,308 | 2026-10-12 | |
| filippo.io | US | 15,154 | 27,801 | 2026-10-11 | |
| shields.io | - | 21,276 | 29,295 | 2026-10-10 | |
| zulti.com | - | - | 48,233 | 2026-10-16 | |
| b-cd.app | - | - | 50,513 | 2026-10-15 | |
| mujyosi.store | - | - | 56,586 | 2026-10-10 | |
| propanium.com | US | - | 58,439 | 2026-10-09 | |
| saucepan.ai | US | - | 58,968 | 2026-10-13 | |
| historyofinformation.com | - | 23,926 | 64,106 | 2026-10-28 | |
| raiselysite.com | US | 25,070 | 64,255 | 2026-10-17 | |
| reactrouter.com | US | 34,895 | 75,249 | 2026-10-09 |
Websites that stopped using Fly.io in the last 30 days
sample of 15; the full list has 1,044Period:last 7 dayslast 14 dayslast 30 dayslast 60 dayslast 90 days
| Domain | Country | Majestic rank | NetAPI rank | Contacts | Dropped |
|---|---|---|---|---|---|
| togel.boutique | - | 169,108 | 294,503 | phone | 2026-10-28 |
| tickify.live | - | - | 556,433 | 2026-10-29 | |
| duckheap.com | - | - | 627,385 | 2026-10-26 | |
| techniekwerkt.nl | - | 637,177 | 743,062 | 2026-10-22 | |
| 01ai.app | - | - | - | 2026-10-27 | |
| 0u.io | US | - | - | 2026-10-24 | |
| 100housechallenge.com | US | - | - | 2026-11-01 | |
| 12mof.com | - | - | - | phone | 2026-10-25 |
| 12mof.org | - | - | - | phone | 2026-10-31 |
| 12monthsofflowers.com | - | - | - | phone | 2026-10-26 |
| 12monthsofflowers.org | - | - | - | phone | 2026-10-31 |
| 12overhillrd.com | US | - | - | email phone | 2026-10-25 |
| 194radiocity.online | - | - | - | 2026-10-31 | |
| 1990group.us | US | - | - | 2026-10-29 | |
| 1eyedguy.com | CA | - | - | 2026-10-24 |
Alternatives to Fly.io in PaaS
All PaaS technologies
Questions about Fly.io websites
How many websites are hosted on Fly.io?
As of November 2, 2026, 53,200 websites are served through Fly.io, recognised from the response headers and the hostnames our crawler sees. The number is recalculated every night from our own crawl of the web.
Who buys lists of websites hosted on Fly.io?
Competing hosting and infrastructure providers, monitoring, security and performance vendors, and agencies and developers who specialise in Fly.io. A website on Fly.io tells you how technical its team is and how much it spends on infrastructure; one that just moved there is mid-migration, one that left is choosing a new provider.
Where are Fly.io websites hosted?
United States leads with 45,373 websites, followed by Germany (49) and Japan (8). The country is where the website is served from; sites on a hosted platform show the platform's country.
How do I find websites that just moved to Fly.io?
The New tab on this page lists websites where our crawler saw Fly.io for the first time in the last days, newest first; the Dropped tab lists the ones that moved away. Both download with a subscription and refresh every morning.
How do I get a list of websites on Fly.io?
A free BetaScan account downloads a {sample_rows}-row sample. A subscription from $69 a month gives the full list of 53,200 domains, or a dataset with emails, phones, country, hosting and ranks, filtered by country, TLD, rank and registration date. See pricing.
How does BetaScan detect Fly.io?
Our crawler fetches the homepage of every domain we track and matches the page and its response headers against the signatures of 7,636 technologies. A website counts as using Fly.io when its latest crawl shows the signature; when the signature disappears, the site moves to the dropped list.