If your website is built in WordPress, check these immediately:
- Don't use default meta titles. Use target keywords instead.
- Change permalinks to Post Name instead.
- Uncheck the "discourage search engines from indexing this site" option.
- Ensure your images have proper ALT tags.
- Don't use multiple SEO plugins. Use only one.
- Ensure test pages or pages not meant to be live are actually hidden or unpublished.