Before renewing a proxy plan, count the jobs that delivered something useful. Then ask which missed jobs a different plan could have saved. If 80 scheduled jobs missed their deadline and 48 of them spent time in a queue, those 48 deserve an investigation. They do not justify an upgrade on their own. A cheaper plan needs a second test: will the team use it long enough to recover the cost of moving?
Follow a fictional product-data team through that decision, or download the bilingual review worksheet and use your own figures. All amounts below are in US dollars per four-week cycle unless labeled one-time. They are illustrative, not IPHTML prices or measurements.
Close two comparable sets of books
The team has permission to check a catalog in one market. A job counts once when the correct product and required fields pass validation before the business deadline, under the agreed region and session rules. Three retries can still deliver only one observation. Both windows last 28 days and use the same workload mix, deadline and validator. If the second period adds a harder category or another market, compare like groups first. If you cannot reconstruct them, defer any change based on the comparison.
| Measure | Previous cycle | Current cycle | What to reconcile |
|---|---|---|---|
| Scheduled jobs | 800 | 800 | One entry per distinct scheduled job ID |
| Valid results delivered on time | 640 | 720 | Records received and accepted by the business workflow |
| Misses with a queue or operating-cap signal | 0 | 48 | Match the job ID to a queue event before its deadline |
| All other misses | 160 | 32 | Includes unexplained misses; keep them visible |
| Current service spend plus operating labor | 900 + 150 | 900 + 150 | Costs and attributable time for the same four weeks |
The current ledger balances: 720 + 48 + 32 = 800. On-time delivery rose from 80% to 90%, a gain of 10 percentage points. The count of useful results rose 12.5% relative to the earlier 640. Current cost per useful result is $1,050 / 720, or about $1.4583. With zero useful results the unit cost is undefined. If the team does not yet agree what counts as delivered, start with the reliability scorecard.
Find where the 48 jobs waited
Queue-associated misses account for 6% of planned work (48/800) and 60% of misses (48/80). The first number tells the operator how much of the workload is at stake. The second tells the engineer where to look first. Neither identifies the supplier as the bottleneck. For example, buying more proxy concurrency cannot help a job that sat in an idle worker queue until its deadline.
Pick one affected batch that you are authorized to repeat. Align the timestamps for admission, worker pickup, dispatch and validation. Keep the market, session rule, deadline and target’s permitted pace fixed. Once you know where the wait occurred, use a bounded capacity test to change one factor. If you lack permission to repeat the work, stay with the logs.
Price the switch over the period you can actually commit to
Suppose an authorized alternative meets the same delivery requirement for $800 per cycle. That includes its operating costs. Migration, parallel validation and preparing a rollback would cost $480 once. For the first calculation, assume the current $150 operating expense goes away in full on switching. If your contract bills by calendar month, put both options on the same billing calendar before using this example.
| Known period of use | Stay | Switch, including migration | Difference |
|---|---|---|---|
| One four-week cycle | $1,050 | $800 + $480 = $1,280 | Switching costs $230 more |
| Two four-week cycles | $2,100 | $1,600 + $480 = $2,080 | Switching costs $20 less |
At a saving of $250 per cycle, break-even is 480/250 = 1.92 cycles. A project with four weeks left cannot spend the saving from a second cycle. Even if two cycles are approved, an omitted handoff cost of more than $20 would reverse the decision.
What if the $150 is fixed payroll? Suppose the team will still pay it and the alternative’s $800 excludes it. Switching now costs $950 per cycle, so the saving falls to $100 and break-even moves to 4.8 cycles. Distinguish cash you can stop spending from time you can redeploy. There is no cost-based payback if recurring savings are zero or negative. Treat an unknown termination charge or overlap period as a missing input; the billing comparison worksheet can help reconcile it.
Record one decision before the notice deadline
- Renew as is when the setup meets a requirement the business still has, and the term and cost are confirmed. Record the next review date.
- Resize when representative peaks consistently leave capacity unused and a smaller plan passes a check, or when a bounded test shows that removing a plan limit recovers needed work. Set a rollback condition.
- Defer new spend while the constraint or the economics remain unresolved. This is the fictional team’s decision: the operator investigates the 48 jobs and procurement checks the contract before the notice deadline. If authorization has expired or is unclear, pause the affected activity immediately.
- Switch when the alternative clears the same workload test, the migration and rollback have owners, and payback fits the approved horizon.
- Stop the proxy workload when the business no longer needs the output or a permitted direct API or feed delivers it on time. Check notice periods and retention obligations before winding down.
Enter the decision owner and review date in the worksheet. Use internal evidence references rather than credentials, tokens or customer records. The measurement approach draws on Google SRE’s guide to service objectives and the FinOps Foundation’s unit economics framework; the worked figures are this guide’s example.
If the job specifically needs a residential exit, check the residential proxy options. Where a plan limit would change your renewal decision, ask IPHTML to confirm the current terms for the region, session requirement, useful volume and constraint you identified.