# Execution Mode

The execution mode defines how URLs are accessed.

^ Mode ^ Description ^
| `parallel` / `p` | URLs are called without waiting for each other. |
| `sequential` /  `s` | Each URL is accessed one at a time. |


Parallel mode, is the normal mode for a modern browser. The URL elements of each subsequent page will load at the same time. There is no waiting for a particular URL to be completed before moving on to the next.

In sequential mode only one URL will load at a time. Each call will wait for the previous ULR before moving on.