yes 1- Get Backlinks

Not top 2 TOP 1 and that is Content development

Yes these techniques are good but old. Now a days Google only prefer unique content.

There are many techniques in search engine optimization helps to improve the visibility of website in search engine results such as forum posting, article submission, blogs commenting ans social media optimization.

know your target audience
create the top 10 list
brand yourself
A killer profile photo
Social media
be visually appealing
Create content
know your target audience
Digital PR
Build it

Top 10 way to promote your website
 

Top 10 way to promote your website
1. Business Listing
2. Profile Creation
3. Classified Posting
4. Article Submission
5. Blogging
6. Guest Blogging
7. Form Commenting
8. Yahoo Answers
9. Video Promotion
10. PPT submission

SEO Company in Delhi | Web Development Company in Delhi

Only SEO is Best Way to Promote website. But Quality back link & relevant category is more important ........

Blogs, Guest Posting, Social Media Marketing...

Content is the king.either it is in the form of text or video or images..it must be compelling to user to share your content.

Work on content..other thing automatically follow to promote your website.