On Page SEO Analysis | Onpage Optimization - Some important factors for Better SEO

URL
XML Sitemap
Robots Txt
Title Tags
Meta Description Tags
Meta Keywords Tags
Alt Images Tags
Heading (H1 H2 H3 H4 H5 H6) Tags
Webmaster Verified
Google Analytic Verified
Stat Counter Verified

Domain Age
Domain Authority
Mozrank
Alexa Rank
Page Rank
Internal Page Rank
Google Cached
Google Indexed
Yahoo Indexed
Bing Indexed

HTML/CSS Validation
iframe Check
Check Javascripts
Flash coding
Hidden Text

Content Optimization
Content Duplicate
Keyword Density
Footer Navigation
Interlinking
404 Page

URL structure
Redirect Link
Broken Links
Not Found links
Orphan Links

Facebook Page
LinkedIn
Twitter Account
Dmoz Submission
Blogs