You do not size a proxy pool by request volume alone. For price monitoring, the real constraint is how many concurrent “stable sessions” you can run while keeping region output consistent and fields complete. Scrapingbypass Proxy works best when you size by targets, refresh cadence, and acceptable retry budget.
Direct answer: a practical sizing rule
Start with a small baseline and scale only after you can keep region output stable. A common approach is to allocate capacity by site and market, then cap concurrency per domain and add backoff. If field completeness drops when you scale, you are already past the useful ceiling.
Decision criteria for sizing
| Input | What to measure | What it changes |
| Target count | Pages per refresh window | Minimum throughput |
| Refresh cadence | How often each page changes | Peak load times |
| Region requirement | Currency, language, shipping fields | Session strategy |
| Retry budget | Retries per success | Backoff and rotation |
A simple checklist before you add more proxies
- Region output is consistent for a fixed set of probe pages.
- Field completeness stays stable when you increase concurrency.
- Retries are explainable and do not loop across different exits.
- Cost is calculated per valid record, not per request.
FAQ
Should I buy more proxies when success rate drops?
Not immediately. First check whether field completeness and region output are drifting. If success is green but fields are missing, scaling will only amplify noise.
How do I know my pool is too small?
If you cannot finish a refresh window without pushing domain concurrency too high, the pool may be too small. Increase capacity only after backoff and pacing are tuned.
Do I need a dedicated pool per market?
For monitoring, yes. Separating markets reduces region drift and makes comparisons repeatable. It also makes failures easier to diagnose.
What is the most useful sizing metric?
Cost per valid record across a stable measurement window. It forces you to care about region consistency and completeness, not raw request volume.