Why website included a sudden drop in recent days?

[packtoo]

Why website included a sudden drop in recent days?

[C.Rebecca]

A few reasons for drop in keyword rankings,
- Stale content
- Dropped or devalues backlinks
- Unethical SEO practice
- Temporary fall in rankings

[semwinner]

are you doing some huge change on your site?

[taniasharma]

As my knowledge, in present the main reasons of sudden drop the ranking is Google Panda.
If you use low quality content means copy content, grammatical mistakes, irrelevant content.. etc, then Google new update will give you surprised results means your high drop in ranking or penalty or ban the website.