HOSTING / READ THE PLAN, NOT JUST THE HEADLINE
Consumption, Unmetered & “Unlimited”
A sales page may emphasize a count while the service is constrained by a different resource. Ask: unlimited what, shared by whom, and subject to which conditions?
Four Labels That Are Not Interchangeable
| Label | What it can mean | What to confirm |
|---|---|---|
| Consumption-based | The bill depends on measured use: hours, bytes, requests, seats or another unit. | The unit, minimum charge, rounding, tiers and which idle resources still bill. |
| Metered allowance | A defined quantity is included or capped over a period. | Whether exceeding it causes an overage charge, slowdown or rejection. |
| Unmetered | Often no per-unit bill for a particular resource within the stated service. | Speed, capacity, congestion, acceptable use and any other restrictions. Monitoring may still occur. |
| Unlimited | No advertised numeric cap on the named item under the plan’s conditions. | Whether storage, CPU, rates, eligible use or another shared resource imposes the practical limit. |
These labels are not a universal technical specification. “Unlimited websites,” “unlimited aliases” and “unlimited transfers” make different promises. None means infinite hardware, unrestricted use or freedom from every other term.
A Mailbox Has More Than One Limit
Separate the number of addresses, the storage capacity, the size of one message and the allowed sending rate. A hundred aliases can deliver into one mailbox without adding any capacity. A large mailbox can still have a low sending limit.
A maximum attachment size is a per-message rule, not a mailbox quota. Transport encoding can make an attachment’s transmitted message larger than the original file. Recipient limits may count addresses rather than messages: one message to many people can use many recipient units.
Read the email-hosting guide →
Is the Allowance Per User or Shared?
Suppose ten accounts share a fictional 50 GB pool. That is 50 GB total, not 50 GB for every account. One user’s growth can reduce everyone else’s available space. A per-user allocation may work differently, with unused capacity unavailable to a busy user.
The same issue appears in hosting: many websites can share one CPU allocation, database allowance or transfer pool. Ask whether the dashboard shows individual consumption, pooled consumption, or both.
Find the Meter That Produces the Bill
- Storage: bytes held over time, sometimes including versions, snapshots and deleted items retained for recovery.
- Transfer: bytes delivered; inbound, outbound, CDN and cross-region paths can have different treatment.
- Compute: allocated runtime, active CPU, memory-duration or a fixed server commitment.
- Operations: requests, reads, writes, builds, restores or messages.
- People: licensed seats, support hours or per-incident work.
GB and GiB are different units; megabits per second describe a rate, not monthly gigabytes. The examples here use decimal KB, MB and GB unless explicitly stated. Read the provider’s unit definition before applying the arithmetic to a quote.
What Happens When You Reach the Limit?
Get a specific answer: an extra charge, a speed reduction, deferred work, rejected mail, stopped deployments, account review or suspension. A billing threshold and a technical resource limit can be separate. Do not discover the answer during your busiest day.
A budget alert is not automatically a spending cap. Metering and notifications can lag; existing services may keep billing after an alert or after an action blocks new resources. Ask what the control actually stops, how quickly it acts and which charges it cannot stop.
The Questions That Cut Through the Sales Language
- Which exact item is unlimited, and which resources remain limited?
- What period and unit are measured, including rounding and reset time?
- Is the quota per user, per site, per project or pooled across the account?
- What behavior triggers fair-use review, and where is it documented?
- What happens at the threshold, and can overages be disabled?
- Can I see my actual usage and export it before renewal?
Technical references: Microsoft’s separate email limits and AWS’s explanation of budget notifications and billing delays. These illustrate the concepts, not provider recommendations or current offers.