What factors hinder search engines access to a website’s content?

Question

Hello
What factors hinder search engines access to a website’s content?
please reply me. i am waiting for your reply.
Thanx

Answer 1

1.Search Engine Search For  Content.
2.Robots.txt.
3.Bad keyword density.
4.poor Doorway pages
5.Broken Links
6.Link baiting
7.Spamming Keywords
8.Charater limits
9.landing pages
10.Sitemap xml and sitemap inner pages structured