What SEO tool or tools are a must have for 2017?

What SEO tool or tools are a must have for 2017?

Answer-

SEO tools for what?
There are lot of SEO tools for various purpose. Here are some of them you must need to optimize your website:
  1. Google PageSpeed Insights for checking the speed and usability of your site on multiple devices
  2. Google Analytics for complete web stats and search insights
  3. Google Webmaster Tools for constant website analysis, alerts, and error reports
  4. Google Trends for changes in search volume for key terms
  5. Ahrefs for complete overview of your website, pages, and links
  6. Copyscape for checking duplicate content on your site
  7. SEMrush is a great tool for keyword research.