Hey guys,
Did Panda hit your website? If yes, check following points to gain rankings and reputation back.
1) If you think your content is of low quality, so the best thing is to improve it or remove it to.
(because after panda google is strictly taking actions to those who have copied or rewritten content)
2) Search for pages on your website which you think is hit worst by search engine
3) Edit over-optimized pages
4) 301 redirect page
5) Quality backlinks are helpful in gaining positions as compared to quantity.
If you have some more points, you can share below..