How to Install a Sitelink Search Box in Blogger
A Sitelink Search Box will make your website or blog display a search box on the Google search results page...

A Sitelink Search Box will make your website or blog display a search box on the Google search results page.
Main Function of the Sitelink Search Box
By adding a sitelink search box, you will make it easier for people to search your website directly from the Google search results. Try searching for Moz on Google, and you will see a sitelink search box below the Moz website name, and the sitelink search box will suggest content to the user.
Even without adding the sitelink search box schema first, your website will still display it automatically, unless you install the nositelink meta tag. However, it is better to add it so that the Google bot better understands your blog.
How to Install
To install the sitelink search box, you can follow these steps.
Open Blogger and go to the Theme section, click on the right side of the customize button and Edit HTML.
Please copy the following code and paste it between the <head>
and </head>
tags.
<script type="application/ld+json">{"@context":"https://schema.org","@type":"WebSite","url":"<data:blog.homepageUrl/>","potentialAction":{"@type":"SearchAction","target":"<data:blog.searchUrl/>?q={search_term_string}","query-input":"required name=search_term_string"}}</script>
For example, like this.
Now save and please check in the Google Rich Search Result Test whether it is correct or not.
Final Words
That’s all from me, I hope this tutorial on How to Install a Sitelink Search Box in Blogger is useful.