# jQuery credit card validator with ad revenue

Built a credit card validation plugin with a demo site that earns small ad revenue.

| Tag | Value | Confidence |
|---|---|---|
| Category | Content and media | 66% |
| Earns from | Ads | 98% |
| Startup cost (estimate) | Under $100 | 59% (low) |
| Time (estimate) | Hands-off | 78% |
| Where | Online | 99% |
| Coding | Needs coding | 97% |

Source: [What was your best passive income in 2014?](https://news.ycombinator.com/item?id=8108062), Hacker News, PawelDecowski, 2014-07-30
Page: https://allsidehustleideas.com/ideas/jquery-credit-card-validator-with-ad-revenue-db1fcb

## About this data

- Sources are public, first-person accounts: interviews, podcasts and community threads.
- Cost, time and the other tags are machine estimates, each with a confidence score.
- Income figures are the owner's own claim. We don't verify them.
- Link the idea page and its source. Call income figures the owner's unverified claim, and cost and time estimates.