Hi,

Any offer for a ecommerce website can be good if it is capable to do below mentioned points:

1- It Attarcts the customers.
2- It develops Interest in the customers to visit the website.
3- It develops a desire in the customers to go for the product.
4- It leads to quick action if purchase is concerned.

For example:

If we can develop a offer that can show 20% to 30% discount with a clock ticking nearby it will lead to quick action as the customers will have limited time to think.

The landing page concept can also work out.

The best offer for an E-Commerce website could be the one which can easily work out while it comes to get new customers.

according to which we should decide for a good offer for our customer....