What Is FTP? How File Transfer Protocol Works and Why to Use SFTP Instead (2026)

What is FTP? See how file transfers work, why plain FTP is unsafe, FTP vs FTPS vs SFTP, and how to connect securely using SFTP in FileZilla.
What Is FTP? How File Transfer Protocol Works and Why to Use SFTP Instead (2026)
What is FTP? A protocol older than the web that still uploads website files, and why you should leave it for SFTP today 💡 Affiliate Disclosure: This post contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Affiliate Disclosure . 📅 Updated October 2026 The explanation draws on the original specification RFC 959 (October 1985), RFC 4217 (October 2005), the FileZilla wiki, the official WordPress hardening guide, Mozilla's security blog, the Chrome 95 release notes and Hostinger's help pages. Plan details for Hostinger, IONOS and Bluehost were read on their own pages on October 12, 2026. A developer tells you to "upload the files over FTP." Your host tells you to "use SFTP on port 65002." And the WordPress guidelines say "use SFTP if your host provides it." So what is the difference between the three? Why do today's browsers not open ftp:// links? And is plain FTP still a risk? This article explains t…

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I’m Hossam Hassan, a tech writer and the founder of Technoa5bar. I write practical guides, reviews and comparisons on web hosting, AI tools, website building, SEO, digital marketing and making money online, so you can choose the right tools with con…

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