Bytemark vs JSDelivr

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 JSDelivr is

jsDelivr is a publicly available CDN for open-source files from npm, GitHub, WordPress and selected custom endpoints. Its terms permit free personal and commercial use without bandwidth or request limits when content and usage follow both jsDelivr and upstream-platform policies. The network uses multiple CDN providers and offers exact or aliased version URLs, an API, combination and optimization features. Production consumers should pin an exact reviewed release: aliases can resolve to newer code. The service is not general file/media hosting, private package delivery or a substitute for package, license and resilience review.

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 JSDelivr is built to do

Public package endpoints

Serves files from npm, GitHub, WordPress and approved custom open-source sources.

Multi-CDN routing

Uses multiple providers and monitoring-based failover for public asset delivery.

Version selection

Supports exact releases and convenient aliases; exact pins are safer for reproducible production builds.

Package API

Returns versions, files, entry points, CDN links and download statistics for tooling.

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 JSDelivr if

• Public npm or GitHub packages that need zero-cost global asset delivery
• Static sites using exact reviewed dependency versions
• Open-source maintainers who want public package metadata and download statistics

Skip JSDelivr if

• The workload is proprietary, private, general-purpose storage or large-scale media hosting
• The application requires negotiated uptime and support-response commitments
• Security policy cannot allow a third-party domain or the build cannot pin and review dependencies

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.

JSDelivr: pros & cons

• Free permitted use: The published terms allow personal and commercial use without request or bandwidth limits.
• Broad public-package access: npm, GitHub and WordPress paths cover common open-source distribution workflows.
• Resilient delivery design: Multiple CDN and DNS providers plus health-based routing reduce dependence on one edge network.
• Developer tooling: Public APIs expose package versions, files, entry points, CDN URLs and download statistics.
• Strict usage scope: General image, video, backup or bulk file hosting is prohibited.
• Mutable aliases add risk: Unpinned version ranges or latest URLs can deliver code different from a reviewed build.
• Upstream rules still apply: Content must satisfy npm, GitHub or other source-platform terms as well as jsDelivr's policy.
• Free support is limited: Published terms promise a reasonable level of issue/email support, not a customer-specific response SLA.