Here you find information for integrators, e.g how to set up the hreflang.
All constants for the evaluation, like the minimum length of an description and so on are configurable in the extension manager (Extension Manager Configuration). Some max values were also used to define the max number of characters in the TCA. You can also define if the evaluation should be visible in the page module and at which position. You can say, which evaluators are available and you can write your own ones (Write your own evaluators).
If you want to hide the evalutation for some editors or pages, you can use TSconfig.
# user TSconfig page.mod.web_layout.tx_csseo.disable = 0 # page TSconfig mod.web_layout.tx_csseo.disable = 0