Host every site and application on one native server.
DELIVER / Fusion Internet ServicesFusion Internet Services (FIS) is Fusion’s web and application server. It hosts Solerra applications, static sites, and PHP for many sites at once, with HTTPS, SFTP, request logs, and one manager, and is built in C++ for Fusion OS and Windows.Product overviewAll products
How it connects
Portfolio advantageFIS is where Solerra applications run. It includes Fusion Web Server for Solerra, FSML, and FSS, shares its file-transfer code with Fusion FTP, sends its requests to Fusion Stats, and is being built to store site assets through Fusion VFS and to back sites up on a schedule.
What Fusion Internet Services brings together.
WHAT IT ENABLESOne server for sites, applications, certificates, file transfer, logs, and backups. FIS serves Fusion’s own websites today. What is marked in development or planned is not finished, and FIS has not been released to customers.
Many sites on one server
01 · RUNNING TODAYHost many sites side by side, each with its own host names, folders, listeners, and limits, and change the configuration without restarting the server.
Solerra, static sites, and PHP
02 · RUNNING TODAYServe Solerra sites with FSML and FSS through Fusion Web Server, static sites directly, and PHP through FastCGI using the PHP installed on the machine. A site FIS cannot serve itself yet is forwarded to the server that can.
HTTPS and certificates
03 · RUNNING TODAYGive each site its own certificate, issue Let’s Encrypt certificates from the manager, redirect HTTP to HTTPS, and see when each certificate is due for renewal.
A file transfer server built in
04 · RUNNING TODAYA built-in SFTP server gives each site its own accounts, confined to that site’s folder, with a password or an SSH key. It uses Fusion FTP’s server code. FTPS is planned.
Rules, redirects, and access control
05 · RUNNING TODAYAliases, ordered redirect, deny, and forward rules, a fallback for single-page applications, and allow and deny lists of addresses for each site.
Request logs and statistics
06 · RUNNING TODAYA W3C request log for each site and day with the fields you choose, and a request feed for Fusion Stats. A traffic view inside FIS Manager is in development.
Asset deduplication
07 · IN DEVELOPMENTStore the static assets of an owner’s sites once: identical blocks are kept a single time in a Fusion VFS store, and FIS Manager shows the pool’s logical size, stored size, and savings. It is being built for Windows first.
Site backup
08 · IN DEVELOPMENTFull, incremental, and differential backups on a schedule, verified and restored to a new folder, with S3, FTP, FTPS, and Fusion’s cloud backup as destinations, and backup status that a site’s own Solerra code can read.
FIS Manager
09 · RUNNING TODAYOne manager for Windows and Fusion OS: sites, listeners, certificates, FTP accounts, PHP, address rules, and service controls, with each change reviewed and validated before it is saved.
BUILDUse one readable language with FSML structure, FSS presentation, workflow automation, client resources, services, and portable targets.Explore Solerra
Fusion FTP
CONNECTFusion FTP Server & Client combine FTP, FTPS, SFTP, synchronization, deployment, policy, and transfer evidence in one native Fusion workflow.Explore Fusion FTP
Fusion Stats
UNDERSTANDTraffic, logs, uptime, DNS, TLS, search visibility, server health, alerts, and diagnostics share one focused operational view.Explore Fusion Stats
Explore Fusion Internet Services.
See what the product does, then continue through the broader Fusion portfolio.Explore every productFusion Software LLC · 2026Fusion Internet Services