Got it. Would you be interested in adding this as a feature in exchange for a payment to develop this feature (ability to add 3rd party websites to index, for example in the form of providing
1) URL to a sitemap of website to index (for example in our case its https://www.google.com/search?q=site%3Adocs.cloudfoundry.org&oq=site%3Adocs.cloudfoundry.org&aqs=chrome..69i57j69i58.8229j0j7&sourceid=chrome&es_sm=91&ie=UTF-8)
2) Limit indexing path to 'docs.cloudfoundry.org/*'
If you would be interested, I'm flexible with timing and would like to know what size of the payment would you require assuming I would agree to release the intellectual property to you so you can monetize the new feature and offer an alternative to a fast-growing service Swiftype.com which we are considering (they have $24/month subscription to a service that allows adding several domains to index and serve an search results from an “aggregated” index). I can agree to pay a monthly fee, as you may require, for example for 12 months, to “finance” the development of the feature.
If you would not be interested, perhaps you can recommend a developer to contract this to. Otherwise I would have to customize your product with my two PHP/Wordpress developers (they work in our Minsk office maintaining our WordPress sites). However, I consider this option of forking as the least desirable selfish option as it doesn't benefit your product long-term and puts us outside of upgrades.
Thank you for consideration,