Hi I heard lots of people and seo company will guarantee for seo - business keywords ranking in google first page within 3 month and 5 months. so my question, on which bases they give guarantee or just to get project they give guarantee..
Make sure the guarantee is in wrting and clearly explains what you want to achieve.. ie: Get site ranked on the first three pages of Google for the keyword "insurance" etc.. Yes for some the guarantee is not worth anything, also make sure the payment terms are structured or staggered as the project proceeds, and if they do not accomplish all stated objectives then it's a 100% refund. good luck
Guarantees are normally a hoax especially when they give you a time frame like 3 - 5 months. Although depending on your niche it could be legit! Not all niches are saturated with competition & sometimes you are able to predict when a first page listing will be available.
Nothing should be guaranteed in SEO world for keywords and time-frame. They can obviously tell you that this & that will be done for optimization. That's all. Result depends on your effort and SE