Both solutions handle the same tasks but have different priorities. The choice depends on your needs, budget, and technical experience.
Comparison Table
| Criterion | ISPmanager 6 | cPanel |
|---|---|---|
| Price (base) | ~$4/mo (Lite) | ~$15/mo (Solo) |
| OS support | Ubuntu, Debian, CentOS | AlmaLinux, CloudLinux, CentOS |
| Web server | Nginx, Apache, Nginx+Apache | Apache + mod_proxy for Nginx |
| Interface | Modern (React SPA) | Classic (outdated design) |
| Mobile friendliness | ✅ Responsive | ⚠️ Partial |
| Docker | ✅ Docker Manager | ❌ |
| Python/Node.js | ✅ Native | ✅ Via Passenger |
| WHM/Reselling | ✅ Business | ✅ WHM + cPanel |
| Plugin ecosystem | Smaller | Larger |
| .htaccess support | ✅ via Apache | ✅ native |
| Community | Smaller (RU-oriented) | Huge |
What's behind the "Price" row
The listed price is the cost of the panel license, not the hosting as a whole. cPanel's license is traditionally tied to the number of accounts on a server and grows with scale: the Admin plan for resellers with many clients costs noticeably more than Solo. ISPmanager's scheme is simpler — the price grows by edition (Lite → Business → Host) rather than by the number of accounts within an edition. That makes it easier to forecast in advance: a customer knows the eventual license cost before the client base grows.
Resource usage difference on a low-end VPS
| Metric | ISPmanager 6 (Nginx) | cPanel (Apache + CloudLinux) |
|---|---|---|
| Idle RAM (panel + web server) | ~150-250 MB | ~400-600 MB |
| Minimum recommended VPS | 1 GB RAM | 2 GB RAM |
| Static file response under load | Lower — Nginx serves files more efficiently | Higher with plain Apache and no Nginx frontend |
The difference is especially noticeable on 1-2 GB RAM plans: cPanel with CloudLinux and its full set of services (Exim, the cpanel daemon, cpsrvd) uses noticeably more idle memory than the ISPmanager + Nginx combo. On servers with 4 GB RAM or more, the difference stops being the deciding factor, and the choice shifts toward feature set and the team's habits.
Common problems when migrating between panels
| Problem | Cause |
|---|---|
.htaccess rules stop working after migrating from cPanel | The site runs on Nginx without Apache — only Apache processes .htaccess rules |
| Emails start landing in spam after the move | The outbound IP changed — the SPF/DKIM records in DNS need to be reissued for the new server |
| Clients complain the interface "looks different" | Expected — the panels have different menu logic; getting used to it takes 1-2 weeks |
When to Choose ISPmanager 6
- Budget is limited — ISPmanager is 3-4 times cheaper
- You need Nginx as the primary web server
- Your server runs Ubuntu (cPanel does not officially support Ubuntu)
- You need Docker containers on your hosting
- Russian-speaking project (better localization)
When to Choose cPanel
- Clients are used to cPanel and do not want to relearn
- You need maximum compatibility with popular scripts
- CloudLinux + CageFS for strict isolation
- Large plugin ecosystem (Fantastico, Softaculous)
When the comparison doesn't matter at all
- The hosting is already managed through a provider's pre-built image with a panel already installed, and migrating would cost more than the potential savings on a license
- The team has already built automation (scripts, integrations) against one panel's API — switching means rewriting that automation, not just changing an interface
- At the scale of one or two servers, the license price difference amounts to a few dollars a month — the savings don't offset the downtime risk and the person-hours spent migrating
Verifying before the final choice
Before buying a license for your whole server fleet, deploy a trial on one test VPS and run through a real scenario: creating a site, installing a CMS, and setting up mail, DNS, and backups. Both panels offer a free trial period — enough to evaluate the interface and speed without risking production clients.
# Check which panel is already installed on the server (if it's not a new one)
ls -la /usr/local/cpanel 2>/dev/null && echo "cPanel found"
ls -la /usr/local/mgr5 2>/dev/null && echo "ISPmanager found"If a panel is already installed on the server and running stably, migrating just to save on a license usually doesn't pay off for one or two servers. Separately check the compatibility of installed CMS platforms and their plugins with the target panel: some WordPress and Bitrix plugins are hardcoded to specific Apache paths that are characteristic of cPanel. See also migrating sites from cPanel to ISPmanager and ISPmanager license types.