Bytemark vs ISPConfig

What Bytemark is

Bytemark is a UK hosting brand acquired by iomart. Its still-published service and documentation pages describe cloud servers from £10 per month, dedicated and managed hosting, UK facilities, an API and the open-source Symbiosis server stack. However, the original BigV cloud platform stopped receiving support on 30 April 2023 and customers were directed toward iomart's OnApp platform. The legacy website and price list remain reachable, so a new buyer should confirm current ordering, contract, platform and support status directly rather than treating every historical claim as a current offer.

What ISPConfig is

ISPConfig is a free, BSD-licensed control panel for administering Linux web, mail, DNS, database, FTP, shell and cron services. One panel can manage a single server, multiple servers or mirrored configurations, with separate administrator, reseller, client and email-user access levels. The core software has no license fee, but servers, administration, monitoring, backups and incident response remain the operator's responsibility. Optional materials and extensions use separate commercial terms: the current billing module is €59 excluding VAT per master panel and includes 12 months of updates.

What Bytemark is built to do

UK hosting infrastructure

Published services span cloud servers, dedicated systems, racks and managed hosting.

API and CLI

Legacy cloud documentation supports programmatic account, image and server operations.

Symbiosis

Provides an open-source Debian-based stack for websites, mail, databases, firewalling and updates.

iomart migration path

Official documentation directs unsupported BigV workloads toward iomart's OnApp platform.

What ISPConfig is built to do

Multi-server control

Administers one or more Linux servers from a central browser-based panel.

Hosting service management

Controls Apache or nginx sites, Postfix and Dovecot mail, DNS, FTP, databases, shell users and cron jobs.

Role-based portals

Separates administrator, reseller, customer and email-user workflows.

Remote API

Supports automation through the project's documented remote API and example clients.

Choose Bytemark if

• Existing dedicated, rack or managed-hosting customers validating their continuing service
• Legacy BigV owners who need the official migration constraints and destination context
• Teams interested in maintaining the open-source Symbiosis stack independently

Skip Bytemark if

• A new production deployment would rely on the unsupported BigV platform
• The purchase requires fully self-service current prices and terms without sales confirmation
• The team cannot test application, network, backup and billing behavior after migration

Choose ISPConfig if

• Self-managed Debian or Ubuntu hosting estates with experienced Linux operators
• Hosting providers needing reseller and client delegation across several servers
• Teams prepared to automate backups and test service-by-service restoration

Skip ISPConfig if

• You need a fully managed SaaS control plane with infrastructure and recovery included
• No one owns OS patching, mail reputation, DNS, TLS, monitoring and incident response
• A proprietary billing add-on or paid support is assumed to be included with the free panel

Bytemark: pros & cons

• Developer-oriented heritage: Published documentation covers API and command-line server management.
• UK infrastructure focus: Bytemark materials describe facilities and network presence in several UK locations.
• Transparent legacy documentation: Pricing, support processes, network design and migration notices remain publicly accessible.
• Open hosting stack: Symbiosis is a Bytemark-developed Debian-based environment with automated hosting administration.
• Platform transition risk: BigV became unsupported in 2023 and the recommended destination is an iomart platform.
• Current-sales ambiguity: Reachable marketing and pricing pages contain legacy claims that may not represent a new order today.
• Self-managed responsibility: Cloud-server users still own application, operating-system and restore readiness unless management is contracted.
• Migration can change behavior: Platform, networking, backup and billing details must be revalidated on the destination service.

ISPConfig: pros & cons

• Open and inspectable: The core panel is distributed under the permissive BSD license.
• Multi-service administration: Web, mail, DNS, databases, users, quotas and monitoring are managed from one interface.
• Multi-server support: A single control plane can administer multiple servers and mirrored configurations.
• Role separation: Administrator, reseller, client and email-user levels support hosting-provider workflows.
• Self-hosted responsibility: Installation, OS hardening, patching, capacity, backups and recovery belong to the operator.
• A panel is not isolation: Secure tenant boundaries still depend on the underlying Linux services and configuration.
• Commercial extras differ: Billing, manuals and professional installation or update support are not part of the free core license.
• Migration needs proof: Existing sites, mailboxes, DNS zones and databases require service-specific validation and rollback.