i Want to Kown Seo Basics?

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On-Page Seo
Length and relevance of domain name and page names.
Length and relevance Meta Keywords and meta description.
Relevance of content and keywords in content.
Percentage of keywords in content.
Page loading speed and structure.
Number of outbound links and their relevance.
External links and their relevance.
Images and image tags.

Off-Page Seo
The number of website who link to your website or blog.
The relevance of the text of the inbound links to your domain.
The relevance of the domain who is linking to you.
The search engine rank of the site who is linking to you.
Social networking links, 'social buzz' and social bookmarking.
Whether the referring links are considered as spam.
Whether the incoming links are one-way or reciprocal links.