9Proxy vs Decodo: the residential price changes at five bundle boundaries

The lower residential checkout changes five times between 9Proxy and Decodo. Decodo is cheaper at 1, 2, 10, 20, and 250 GB. 9Proxy is cheaper at 5, 50, 100, 500, and 1,000 GB. The sampled crossing brackets are 2 to 5, 5 to 10, 20 to 50, 100 to 250, and 250 to 500 GB. A crossing is a bracket between observed rungs, not an interpolated break-even volume. Pair analysis dated 2026-07-26

Every sampled checkout

At 2 GB, Decodo costs $11.25 against 9Proxy’s $15, so Decodo is the lower-checkout option. At 5 GB, 9Proxy still costs $15 while Decodo moves to $35, so 9Proxy becomes cheaper. At 10 GB, 9Proxy opens a $105 tier while Decodo remains at $35, returning the price lead to Decodo. 9Proxy pricing API, retrieved 2026-07-25T16:03:55Z Decodo residential pricing, retrieved 2026-07-25T15:31:32Z

The middle and large-volume changes are equally concrete. At 20 GB, Decodo is lower at $81.25 against $105. At 50 GB, 9Proxy is lower at $105 against $150, and it remains lower at 100 GB, $150 against $275. At 250 GB, Decodo costs $625 against 9Proxy’s $800. At 500 GB, the same $800 9Proxy purchase covers the request while Decodo costs $1,125, so 9Proxy takes the lower checkout again and retains it at 1,000 GB. Decodo residential pricing, retrieved 2026-07-25T15:31:32Z Pair analysis dated 2026-07-26

The purchase horizons are different

The calculation chooses the cheapest published plan that covers each requested amount and counts the full purchase. 9Proxy’s captured traffic plan has a 180-day expiry, while Decodo’s covering tiers from 2 GB upward are monthly plans with 30-day billing. The dataset does not publish a bandwidth-expiry value for the Decodo row. The table therefore answers the immediate checkout question, but it does not make the two purchase horizons identical. 9Proxy plan data, retrieved 2026-07-25T16:03:55Z Decodo residential pricing, retrieved 2026-07-25T15:31:32Z

That difference matters most when traffic varies. A buyer who needs 50 GB now but can consume a larger balance over six months may value 9Proxy’s longer window differently from a buyer budgeting one fixed month. A buyer should not divide the 9Proxy checkout by one month’s forecast and assume unused traffic disappears after 30 days. The only captured expiry statement for that row is 180 days. 9Proxy pricing evidence, retrieved 2026-07-25T16:03:55Z

Published operating constraints

9Proxy publishes rotating and sticky modes plus country, state, city, and ISP targeting. It does not publish a sticky-session maximum, concurrency ceiling, or rollover on the provider’s page state in the captured row. Decodo publishes rotating and sticky modes, a 30-minute sticky maximum, and country, state, city, ZIP, and ASN targeting. It does not publish bandwidth expiry, rollover, pooling, or concurrency in the recorded fields. 9Proxy integration documentation, retrieved 2026-07-25T16:03:55Z Decodo residential pricing, retrieved 2026-07-25T15:31:32Z

Neither provider’s missing fields should be read as unlimited. A workload requiring ZIP or ASN selection has a published Decodo control that the captured 9Proxy row lacks. A workload requiring ISP targeting has a published 9Proxy control, while the Decodo row publishes ASN but not ISP targeting as a separate field. Captured plan data dated 2026-07-26

Decision rule

Use Decodo for the price shortlist at 2, 10, 20, and 250 GB. Use 9Proxy for it at 5, 50, 100, 500, and 1,000 GB. Before choosing, normalize the purchasing period: 9Proxy’s recorded balance lasts 180 days, while Decodo’s covering bundle is billed monthly and has no published traffic-expiry value in the captured row. Pair analysis dated 2026-07-26