Help me to find basic design for a web project

My use case is rather uncommon. I use a website every day and waste much time there because the site presents a lot of duplicated content. I would like to build an application that hides the duplicated content. What I'm not sure is what design I need because I never did a web or database project.

I'm the only person who will use the application. There are 10-20 new pages a day, each with 15 items and the majority is duplicated content with minor differences, over a timeframe of years there...

Help me to find basic design for a web project WordPress ...