What are the most important On-page factors in year 2015.

[FaustoNer]

Hello there, since Goggle is changing its algorithms very frequently so i just wanna to know which are the best on-page factors should i consider to improve ranking of my website?

[Randalerarm]

ON-PAGE Factor in 2015

Optimize Your Site Page Around One Keyword or Topic
Remember that Keywords Are Important But Not Verbatim
URL Structure Should Be Short, Descriptive and Help to Categorize Your Website
Optimize Page Titles
Utilize Proper Heading Tags
Optimize Image Alt Text
Grow Natural Links
Increase Site Speed
HTTP vs. HTTPS: Why They Matter
Mobile Search Implications

[Jeffreyhooft]

One of the most important SEO on-page factor in 2015 is Url structure, it should be short, descriptive and help to categorize your website.