Hello @sonofguddu!
It’s enabled by default 
There are some things to keep in mind as with any tool:
- adding metadata to your pages
- using headings appropriately
- adding alt text to images, etc.
Other than that, the only WeWeb specific thing to keep in mind is that, when you add a collection of data that you want to rank in SEO (for example, blog articles), you’ll want to choose the “Static” mode when setting up your collection.
This is because, when you choose the “Static” mode, your pages will be pre-rendered by WeWeb which helps search engine bots understand the data faster and therefore index it better.
Does that help?