A sitemap is actually a map of your website. It’s either an XML or HTML file that contains all the URLs of the pages inside your blog/website. It helps to increase
SEO ranking for website.
1.*Go to*Sitemap Generator*and enter your blog URL, click on*Generate Sitemap*and your blog’s sitemap will be generated as shown below,
2.*Now copy the entire generated text. Sign in to your*Blogger dashboard*> Settings > Search preferences > Custom robots.txt ?*And enable it*Yes*and paste the entire copied text inside the rectangular box and click on*Save changes.
Now you have almost done updating sitemap in your blogger search preference. Search engines will automatically discover your XML sitemap files via the robots.txt file and you don’t have to ping them manually.
Update Your Sitemap in*Google Webmasters Tool
1.*Copy the generated sitemap text (Copy only the text after your URL without forward slash)
2.*Sign in to your*Google webmasters account*Go to*Crawl > Sitemaps >*then click on*ADD/TEST SITEMAP*paste the copied text and click on*Update Sitemap.
Now you have done generating your blog’s sitemap, updated it in your blogger*search preferences*and also updated in*Google webmasters tool.