need good tips share me information...new to seo

Here are the most common black hat SEO things Google penalizes for:

• keyword stuffing
• exchange and purchase of backlinks
• automatic content generation
• cloaking
• fraudulent redirects
• malware on the site
• hidden content / link from users (visible only to robots) e.g. white font on a white background

I use three "secret" TIPs to improve SEO on my (or clients) websites:

1. Buy expired domains (domains are still cheap, and if they have quality backlink profile and don't have penalty from Google, then they are much cheaper solution than buying direct link from website).
2. Update old articles and always add at least one paragraph of text
3. Create content for new keywords that Google reports to the Google Search Console :)