Google launched many ranking algorithm and it's always rank quality blogs. If you think to safe your website from Google Penalty, then you must know these rules.

Here is the top Google ranking factors and that awesome for everyone's blog:
1. Keep your keywords in post title and meta description.
2. Do deep internal links with good anchor text.
3. Media files important things for ranking. Add some images and videos.
4. Heading tags focus your post points to Search Engine.
5. Long articles rank well than short articles. Publish more than 1200 words and it's cool.
6. Keyword density the prime thing and control it also and avoid stuffing.
7. Update your content once every month or every six months.
8. Compress your images and it's boost image SEO.

If you want to learn about Google's 200 ranking factors, just click here and know the complete checklist.