Steps to follow
1. Create an account on searchIQ.
2. Copy the API key from searchIQ account, you can find it after selecting “Create Engine” option.
3. Once you’ve created an account, go to your WordPress site and install searchIQ WordPress plugin.
4. You will be asked to enter your searchIQ API key.
5. Select the post types you want to search.
6. Index your posts, you are all set!