[support] How to estimate how many people-year is need to build a website and how many people is needed to maintain a website?

[Peng Yu]

Hi,

I'm wondering whether is an easy way to estimate how many people-years
are needed to build a website and how many people are needed maintain
a website. Some website has a staff webpage showing all the supporting
staffs, which make it easy to estimate. But such a webpage is not
available, is there a way to estimate based on the content or some
other characteristics of website for an estimate?

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Regards,
Peng