Web crawler can't access to your password protected pages. Also, you can disallow them using robots.txt but it can give idea to the hacker about your protect directories.
404 is an Not Found error which occur when any page is removed from the site or when it cannot retrieve the page that was requested. Custom 404 page should be designed to make better user experience.
W3C Validator doesn't have much to do with SEO.
The Validator checks the HTML or CSS code of a site and returns a report of mistakes in the code, where the code doesn't follow the standard of HTML or CSS.
It doesn't give any ranking of the search engine optimization (SEO). Valid code is always...
Content marketing is a form of marketing focused on creating, publishing and distributing content for a targeted audience online with the objective of driving profitable customer action.
Any incoming links to your site from another site is consider as backlinks. Backlink should be dofollow because it will pass domain authority and ranking power.
Do high-quality post on the site that is related to health domain is consider one of the best strategies for creating effective backlinks. Also, you can do some forum answering in a health-related forum and take backlinks from there.
Heading Tags are good for users and readers, as they are used as a tool to break up text into meaningful, logical sections.
The title of every page should be displayed using the <H1> to <H6> tag.
Below are the list of best video submission sites for generating traffic on your site:
- Youtube
- Vimeo
- Tumblr
- Zippyshare
- Dailymotion
- Metacafe
- Liveleak
Google bots are well know as crawler, spider and robots. Google use crawler as a software to read the content on the web page and then index them to its giant database.