Why My website serp is decresing.

Before my website rank was 3 or 4 position in 1st page..but few days ago it is gone 50th position..few days ago i have put a backlink in a site ..background color and my link color was same...before i don't know this is black hat seo..after 20 days i have remove my link from there..i have remove the link 10 days ago..but my webmaster tools now showing backlink from that website.

1. please tell me when webmaster will be delete all the link
2. Can i improve my serp position in that keyword.

 

Google had a panda update a few days ago, may have been that, that caused you to loose your SERPS position.

 

Sometimes using backlinking services will increase your pr, but over time because it's not a steady flow of backlinks your website starts to decrease.

 

google panda probably
http://insidesearch.blogspot.com/2012/02/search-quality-highlights-40-changes.html

 

When Google next crawls the site and the link is not there, it should disappear from the GWT report.

 

Straight from the horse’s mouth -
If it’s your SERP ranking that’s plummeting, check this:
http://www.youtube.com/watch?v=gx04qNrCbnk

If it’s your Page Rank (PR) that’s going down, check this:
http://www.youtube.com/watch?v=kFcJ7PaLoMw&feature=relmfu

 

You continue yourself busing in White Hat SEO. When Google Panda next crawl, that may surely do something for your site.

 

No need to worry much on this type issue. good to hear that u deleted the links and also try to remove any other errors like duplication, on page problems, cookie stuffing etc... do not do re consideration, just wait a month will be back.....

 

hey one or 2 bad links really don't matter... if out of 100 u have 10 bad links and 90 good links this should not affect you sites ranking... dont worry stay calm and see in few days all should be back on track

 

Thanks a ton for these videos!

@islam_razibul

I also believe that Panda update is the reason behind your SERPs getting some hit so you need to check carefully that you're well within the Panda guidelines.

 

Sometimes using backlinking services will increase your pr, but over time because it's not a steady flow of backlinks your website starts to decrease.

 

Don't worry it will automatically remove from it's index. If you're getting punished for that back link it will be soon recover.