I am very upset, the search engine has suddenly dropped my website
from 1st position to the 11th position, the rank changed over night.
It has been 1st for more than a year and no changes have been applied
to the website. Has google made any changes to the search engine?

Our number of hits have double in the last year. Which should give us
a good rank.

What has cause this fall in the ranking? Can it drop so dramatically
over night?

Thanks,

Carlos A.