Does any one have reviews about this. Can some one suggest me reference material for increasing quality score. Things which i have done for my pages: A little help would be appreciated. I have added title , metatagss , description , image alt tags , submitted sitemap , privay , tos , contact us page. h1 , h2 tags for the keyword. My ctr was 5% , so my quality score increased to 9 , and then it got reduced to 5 as my ctr got to 1.85%. PS: this is not a new campaign , i have been using it for past 5 days.