- do not put copy content to any website
- Write Semantic and Valid Markup
- Always use alt tag on the images
- always keep the CSS and JavaScript files Externally
- Try to use div instead of table
- Always try to avoid any iframe on the websites
- always add a robots.txt file on the root folder and disallow the unnecessary and non index able files and folders through robots.txt
- Do not keep any broken link on the website
- Create a customized 404 page and redirect all the broken links there
- Use Search Engine Friendly url Names
- Use Breadcrumb Navigation properly
- if you are developing a ecommerce site then develop 3 different xml sitemap:
abc.com/pages-sitemap.xml
abc.com/categories-sitemap.xml
abc.com/products-sitemap.xml