Traffic rollover
A policy under which unused traffic from one billing period carries into the next instead of expiring. Some providers cap the carry-over, others make it indefinite.
Why it costs you money
An expired gigabyte costs the full rate and delivers nothing. Use sixty percent of an allowance and your real cost per usable gigabyte is two thirds higher than the rate you agreed, which can be worse than a dearer plan you would have finished. Of eight pricing pages we read, two stated a rollover policy and six said nothing at all.
See it in the data
Related terms
- Bandwidth overageWhat a provider charges once you pass the gigabytes your plan includes. Often several times the headline rate.
- Pay as you goBuying bandwidth in top-ups instead of a monthly plan. Cheaper for bursty work, dearer per gigabyte.
- Prepaid trafficBuying a block of gigabytes up front and drawing it down, instead of committing to a recurring monthly allowance.
- Per-GB pricingBilling by the gigabyte you move, the dominant model for residential proxies and the one most comparisons assume.
- Every term we define