My site started to drop from the top positions in May 2013. I was told it was Panda and I had spammy backlinks by a few seo companies. However, I never received a warning from Google.
I did have some spammy links due to trying to outsource to seo companies over the years. Directories and not too related blog links, that type of thing.
And seo company said they would do a disavow. After that my site has almost disappeared completely. The seo company in question say I should start from the beginning with a new website. I wanted to ask them why they then were happy to perform the disavow in the first place, but decided I would be wasting my breath and chalked it up to another failed seo outsourcing attempt.
So, I now wonder if it is worth trying to build my original site back up in Google, or whether to start again? Is there a statement from Google on this? Is there a site where I can quantify the damage and potential course to improvement?