Chick-fil-A is offering free breakfast for a limited time, if customers go online to sign up and print out the invitation. But it might require some patience, since the fast food chain has had so much online response that the company's Web site was down Tuesday morning.

Chick-fil-A told customers on the company's Twitter site to keep trying, as they were working to get the site back up. Once customers get on the page they can make reservations beginning Monday for free breakfasts available from Sept. 6-10. Tuesday afternoon the site was working again.

To sign up and find a location, click here.

Customers signing up will be asked to select a specific Chick-fil-A location they want to be served from, and a specific time they plan to pick up their free breakfast.

Times vary per location, but most Chick-fil-A franchises serve breakfast from 6:30 a.m. to 10:30 a.m.

Participants can also choose what they want for their free breakfast. Choices include: Chick-fil-A's signature chicken breakfast biscuit; spicy chicken biscuit; sausage biscuit; three-count Chick-n-Minis; chicken and egg and cheese bagel; bacon, egg and cheese biscuit; chicken breakfast burrito; sausage breakfast burrito; and the new multigrain oatmeal.