Where does this garbage come from or is it not a problem?

Question

Search Engine Optimization

Hello!
Who can tell where such garbage is taken from in Yandex Webmaster's "Bypass Statistics":

/?p=9903
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Faksii%2Fsudebnoe-predstavitelstvo-v-grazhdanskom-protsesse%2F
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Faksii%2Fsudebnoe-predstavitelstvo-v-grazhdanskom-protsesse%2F&format=xml
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Fnovosti-byuro%2Fpriyatnye-novosti-uzhe-skoro%2F
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Fnovosti-byuro%2Fs-dnyom-rossii%2F
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Fnovosti-byuro%2Fs-dnyom-znanij-2%2F
/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdomen.ru%2Fnovosti-byuro%2Fvremya-raboty-v-iyunskie-prazdniki-2014-goda%2F
/wp-json/wp/v2/pages/4713
/wp-json/wp/v2/posts/4961
/2012/04/

Question:
1. How to make sure that this garbage is not there?
2. Do I need to fight it?

Answer 1

Probably left from the site that used to be on this domain.
Prohibition of indexing in robots
Redirects from this slag to the main page or somewhere else to your site
Remove from search in Yandex Webmaster
Remove from search in Google (I don’t know if there is such a thing). I can't stand Google Dashboards

Answer 2

Read about wp-json here .

Answer 3

garbage is taken from the wordpress engine