SEO Toolkit by Primal is a free extension that will help you determine the SEO parameters of the websites you want to analyze. 

SEO Toolkit by Primal allows you to get a quick view of the website's meta-data. There are 4 main sections. Each section contains 3 tabs. The first tab is called "Headings" and it contains information about the headings, as well as an indicator about the number of words that are going to be shown. The second tab is called "HTML" and it contains information about the HTML elements that are contained in the website's source code. The third tab is called "Schemas" and it contains information about the website's schemas and the types of resources that can be found within it. The fourth tab is called "Language" and it contains information about the website's hreflang tags.

If you want to know more about a website, try the "Detailed View" tab. It will show you the response header, along with the listing of the redirects that have to be done.

To get information about the website's assets, try the "Assets" tab. This tab is divided into "Img" and "Javascript" sections. If you want to know about the images, you can go to the "Img" section. The "Javascript" section will show you information about the website's assets loaded, including the source code and the response header.

The "Response Header" tab will give you information about the website's response header. You can find all the information you want about the websites you want to analyze.

To get information about the website's redirects, you can go to the "Redirects" tab.