Guide Section
Start with the workflow, not the proxy label
The fastest way to make a weak proxy decision is to ask which model is better in general. There is no universal winner. For GEO-sensitive research, SEO validation, localization checks, and ad monitoring, a proxy only becomes good when it matches the job, the target site, and the way requests are distributed over time.
That is why Country-level targeting and City-level targeting should be compared against operational constraints. If the workflow breaks because the site expects local consumer traffic, one answer is usually obvious. If the workflow breaks because the task needs throughput, concurrency, or stable private infrastructure, the other answer usually wins.
Guide Section
Measure GEO realism, session length, and request rhythm
The key is not precision for its own sake. The key is whether extra precision changes the business decision. This is especially important when the target page changes by country, city, account state, or storefront view.
Session design matters less than getting the right geography, but stable continuity can still matter for repeated local checks. On top of that, request rhythm matters. Some workflows succeed with short bursts and frequent IP changes, while others need stable continuity for long sessions, repeated checks, or account trust.
Guide Section
Translate the answer into implementation rules
Once the right side of the comparison is clear, document it in routing rules, budget expectations, and internal linking. The guide should lead to a matching product page, pricing page, and related use-case pages so the team does not reopen the same decision every week.
A strong implementation also means defining what would force a change later. If the workflow grows, needs broader GEO coverage, or moves from testing into constant production traffic, the correct proxy choice can evolve without the original guide becoming wrong.