I need to create a website similar (https://geospatialresearch.mtu.edu/kettexplorerapp/index.html)
and I have all the maps and spreadsheet data in ArcGIS online how can I create a similar to the above-given link with all those sidebars, shown in the pic attached.I have created the map but don't know how to create the section of search results.
can anyone please help me?
The website you are referencing is custom. If you want to use AGOL web apps, you can use your web map to configure one. It won't look exactly like the website you referenced, but you could get close. I have provided a link below on how to get started. Hope this helps.