I found many Errors within my Google webmaster center,is it true that the errors hurt sites' Google ranking badly?
i also find many broken links in my blog, but since that happens, the best way is to face up to it. but the best way is keeping updating the blog, and prevent such case as broken links again.
They will in a very small way, but nothing to tear your hair out about... More details? Old pages? What are you planning to do? If you want to keep search engine juice 301 is best option, otherwise 404 error and use GWMT URL removal tool.
The previous website was banned,so I deleted all the pages for a reconsideration. Yes,the broken links point to old pages which has been removed completely,Now I am writing new pages for those broken links,but the quantity is big.What do you think?
If the old pages only have negative rep, then I would just get rid of them with a 404 > url removal If you have built links to them, and you think they might have a good rep, do a 301 or create new pages with same url. It sounds links the first option might be best. Good luck
Could you please share some knowledge about how to tell the good rep backlinks and the bad rep backlinks? Thank you in advance.
If your site was banned... it might have negative rep. Did you get your links from bookmarking/free blogs/commenting? Might have bad rep... Paid links? Or high quality natural links?