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thank you for this complete answer.

I work on a site that, due to its work policies, does not allow me to use my keywords on a page because of the structure of the page. Will my spam score go up if I enter the word hiddenly? About three to four times?
This is the page address https://www.danapardaz.net/danacrm/
My spam score is 1 . I am afraid that the spam score will go up or Google will penalty me. please help me

hello

I do white hat SEO on my site and I Don't do any spamy job on my site but my spam score is 1%. 
please look at my site and tell me what can I do to decrease it to 0.

https://rayastor.ir/ this is my site.