There are several such differentiators: - exclude walled gardens - exclude sites with ads and/or ecommerce - exclude sites with tracking - exclude sites wit

There are several such differentiators: - exclude walled gardens - exclude sites with ads and/or ecommerce - exclude sites with tracking - exclude sites with fixed headers - allow users to have personal blocklists As a bonus, if you make a new search engine offering such options, existing search engines will be afraid to copy them.