Here's a good links to read:-
- SEO Tutorial For Beginners in 2018
- How to Use the SEO Checklist for Drupal
- http://www.weebpal.com/blog/top-drupal-seo-modules
- SEO Checklist (MUST HAVE)
- Pathauto
- Redirect
- Global Redirect
- Page Title
- Metatag
- Search 404
- Content Optimizer
- Drupal SEO Tools
- Menu Attributes
- Menu Breadcrumb
- Links Checker
- SEO Compliance Checker
- Xml sitemap
- Site Verification
- Html Purifier
- Tag Clouds
- Taxonomy Title
- Google Analytics
- Mollom
- Schedule
- Diff
- Rdf
- Easy breadcromb
- Sitemap
- W3C Validator