I made a quick visit to the website. Nice stuff! I really liked the simple design {no coockies, no ads,..}. I just have some few notes:
1) Who is the audience target? I mean for what reason should anybody use your site? Know that good projects may not have a GitHub activity at all.
2) There is no mention about the team behind the project.
3) How you aim to generate profit from this ranking website? Or maybe you will just keep it an informative sources just like preev.com. But preev use an API to run automatically while your service requires regular manual updates.
1) Some people evaluate projects by developer activities other than metrics such as coin price, marketing etc so this is catered for them. Apart from that, there are some folks who appreciate/like cryptocurrencies/coins built from scratch (not forked/copy-n-paste) so coindab.com provides such info. Fun fact: 6 out of the top10 CMC tokens/coins are written from scratch. Projects not hosted on GitHub (eg GitLab, bitbucket, sourceforge etc) is unfortunately not trackable.
2) Do you mean the development team or everyone involved in the project (marketing/advisor/dev/etc) as a whole?
3) There's no plan for monetization at the moment. Coindab.com intends to serve as an alternative to cryptomiso that is no longer maintained. The manual update is only needed when adding new coins (need to check if the soruce code/repo is legit /original), otherwise everyting you see on the website is pretty much updated automatically via different data provider)