Move when you hit resource limits, need root access, or must run custom software. Shared hosting is cost-effective for small sites; VPS or dedicated give isolation and scalability. Plan migration and DNS cutover in advance.
Signs it's time to leave
- Resource limits: CPU, memory, or connection limits are hit; site is slow or times out. Upgrades on shared plans are often limited or expensive for what you get.
- Root / control: You need to install packages, change PHP/Node version, or tune the stack. Shared hosting locks you into the provider's stack and panel.
- Custom software: You need queues, workers, Redis, Elasticsearch, or non-standard runtimes. Shared hosting rarely allows arbitrary processes or long-running jobs.
- Security and compliance: You need isolation from other tenants, specific firewall rules, or compliance (e.g. PCI, HIPAA). Shared is a single shared environment; you cannot fully control it.
- Growth: Traffic or data is growing; you need horizontal scaling, multiple app nodes, or a proper DB tier. Shared is not designed for that.
What you gain with VPS or dedicated
- Isolation: Your own OS and resources. No noisy neighbors; you control patches, firewall, and stack.
- Scalability: Resize or add instances; use load balancers, separate DB, cache. Scale as you grow.
- Flexibility: Any supported OS, runtime, and software. Root or sudo; automation and config management.
- Cost: At higher usage, VPS or small dedicated can be comparable or cheaper than over-upgraded shared. You pay for what you use and control.
Migration planning
- Inventory: List domains, DBs, cron jobs, email, SSL certs, and any panel-specific config. Export DBs and files; note versions (PHP, etc.).
- New environment: Provision VPS or dedicated; install stack (or use image). Migrate data; sync DB and files; test in staging with copied data.
- DNS cutover: Lower TTL in advance (e.g. 300 s). Switch A/AAAA (or CNAME) to the new host. Monitor; keep old host until you are sure. Have rollback plan (revert DNS).
- Email: If email is on the same shared host, move to a mail provider or new server and update MX/SPF/DKIM. Test deliverability.
Summary
Move when you hit resource limits, need root, or must run custom software. Shared is cost-effective for small sites; VPS or dedicated give isolation and scalability. Plan migration and DNS cutover in advance; inventory, migrate, test, then cut over.
