Hello, if you make web 2.0 on new accounts definitely it will take time to index and sometimes it takes months to index those links but if you want you can do manually indexing like you can create backlinks for them on other sites or share them on social media like I'm doing it here I hope you could get a good idea from here.
Web 2.0 links offer a powerful strategy and the best ways to help control the conversation of content that's directed to a website. The web 2.0 backlinks are from highly authoritative domains and if they do correctly, can carry some serious ranking power.
To index the web 2.0 backlinks you can following the working solution that can faster your backlinks indexation process.
1. Have some patience as the search engine will automatically index your web 2.0 backlinks as per their standard procedure.
2. Submit backlinks to the Google webmaster tool
3. Pings the URLs
4. Share the web 2.0 backlinks on social networking sites
5. Use the 3rd party high-quality webs site link in your post
These are the proven steps that can index your web 2.0 backlinks in Google and any other search engines. Go ahead and follow them now, you will get the desired results very soon.