# Use cases

> Pick the job, copy the command.

Pick the job and copy the command. Each one uses the same prospects and the same report.

## Before a launch

Find where a new signup flow loses people. Ten prospects walk it, and the report names the three pages they left from, with a quote and the element they were on.

```
leakdown your-site.com --ladder --yes --headless
```

Want the run shaped around one journey? Add `--flow "signup through to the dashboard"`. See [Flows](https://docs.leakdown.dev/flows).

## Phone layouts

The same run on a 390 × 844 touch viewport. The report's ruler also flags tap targets under 24px, sideways scroll and a missing viewport meta tag.

```
leakdown your-site.com --mobile --yes --headless
```

## Retest one finding

A finding cited by one session is marked unverified. Send the same persona three times to see if it holds, or draw a random set.

```
leakdown your-site.com --persona marcus,marcus,marcus --yes
```

## Share the result

One PDF per site with the funnel and every fix, for someone who will not open markdown.

```
leakdown --pdf your-site.com   # writes runs/your-site.com/your-site.com-report.pdf
```

`--history` lists every run with its one number, so you can point at the right one.

```
leakdown --history  your-site.com
    2026-09-09 16-02-40  5 of 10 completed their goal.       wide haiku×10
    2026-09-17 10-14-02  3 of 10 completed their goal.       wide haiku×10 · deep opus×1  REPORT.md

  Open: runs////AGGREGATE.md — or leakdown --fix  for the newest run.

```

## More jobs

Other jobs have their own pages.
[**Builder**Pick the job, type your site, copy the command.→](https://docs.leakdown.dev/build-a-command)[**Fail the build when signup breaks**Goal tests with exit codes CI can read.→](https://docs.leakdown.dev/goal-tests)[**Check a price or a total**--expect makes a completion count only when the value shows.→](https://docs.leakdown.dev/goal-tests#expect)[**Compare two versions**Same prospects, one verdict.→](https://docs.leakdown.dev/ab-tests)[**Test email verification**Codes and magic links, read by each prospect.→](https://docs.leakdown.dev/email)

---
Source: https://docs.leakdown.dev/use-cases