sites are not included in Baidu for ten reasons:
1, web usage framework (iframe), including Baidu, so search engines hate frameworks.
2, too many pictures, too few text,.
3, submit too frequently: submit more than 2 times in one month.
4, the website server transfer: search engines usually only know the IP address conversion, host or domain name, IP/DNS address change, then you have to re submit your site.
5, free website space: some search engines refuse to index from free space sites, complaining about a lot of garbage, poor quality.
6, search engines crawl when the site is not online: if the host is unstable, there may be such a situation. To make matters worse, even if the site has been collected, re found, not online, will also delete the entire site.
8, the search engine can not resolve your DNS:, the new domain name registration takes 1-2 days before the entry into force, so do not register a domain name, submit the site immediately.
9, the link is too wide web site: links are too wide, low search engines find you, and then consider the site login to well-known categories, or do a few links.
10, server speed is too slow: network bandwidth is small, web download speed is too slow, or web pages are too complex, may lead to search engines have not found the text, the content will be suspended.