Is fly.io safe?

Our automated security review found no threat indicators on fly.io, so it appears legitimate. All 90 antivirus engines we queried report it clean, it ranks among the world's most-visited sites, Even so, always double-check the exact address in your browser, because phishing emails routinely spoof real, trusted domains like this one.

fly.io has a Safety Score of 94/100 (Safe). Core checks and semantic analysis found no material threat at scan time. Treat unexpected login or payment requests with normal caution.

Yes — and this is worth understanding. Even trustworthy domains get spoofed in phishing emails (a fake message that only looks like it's from fly.io), and legitimate sites are occasionally compromised on specific pages. A clean verdict means the site itself checks out today; it does not mean every email or link claiming to be from fly.io is genuine. Always reach the site by typing the address yourself rather than clicking links in unexpected messages.

No — all 90 antivirus and blocklist engines in our malware network currently report fly.io as clean. That's a good sign, though antivirus coverage is only one of the many signals we weigh, and brand-new scam sites can appear clean before vendors catch up.

No — fly.io is not currently on the major browser blocklist feeds that Chrome, Safari, Firefox, and Edge rely on. Note that blocklists can lag behind brand-new scam domains, so "not listed" is reassuring but not a guarantee on its own.

Yes — fly.io presents a valid TLSv1.3 certificate issued by Let's Encrypt · YE2, valid for another 72 days. Important caveat: SSL only encrypts the connection between you and the site — it does not verify who runs it. Almost all scam sites now have valid SSL too, so a padlock alone never means "safe".

fly.io resolves to an IP operated by Fly.io, Inc. in US (Content Delivery Network). Hosting location alone doesn't make a site good or bad — but hosting that doesn't match a brand's claimed country, or that sits on networks known for abuse, is one of the many signals we weigh alongside the verdict above.

Yes — fly.io ranks in the global top 100,000 most-visited sites, which means it has substantial real-world traffic. Genuine popularity doesn't automatically make a site safe, but throwaway scam domains almost never reach this level of traffic, so it's a meaningful point in the site's favour.

This report is a record of the scan run on September 20, 2026, and the verdict reflects that point in time. Scam sites change fast — they can go live, get flagged, or vanish within days — so if you believe something about fly.io has changed, MalwareTips staff can run a fresh scan that re-checks every signal from scratch and republishes an updated verdict.