Thank you for reaching out and for sharing the details of your setup.
SP Page Builder currently works with Joomla’s Smart Search for indexing and searching its content. However, we cannot confirm whether a specific third-party search extension will be able to properly index and search product IDs stored within the HTML content of SP Page Builder pages.
We also recommend keeping in mind that SP Page Builder 3 is no longer under active development, so some functionality or compatibility with newer third-party extensions may not work as expected. We always recommend using the latest version of SP Page Builder to ensure you have the latest features, improvements, and compatibility updates.
Since the behavior of third-party search extensions depends on how they index SP Page Builder content, we recommend contacting the developers of EB Ajax Search or Geek ElasticSearch directly. Please share your specific requirements with them and ask whether their extension can index SP Page Builder pages and search for product IDs within the HTML content.
We appreciate your understanding.