Do I need to check the box "Ask search engines not to index the site"?

Question

Search Engine Optimization

The site is already ready, now articles are gradually being added to it, but the SEO specialist has not yet worked with the site.
Can SEO illiteracy of a site administrator lower a site in search results?
The site is made on WordPress, bought filled with a theme.

Answer 1

Is the site being indexed now? Does it have search traffic?
If not, then it will not be worse from the actions of the administrator) There will
still be no less than zero traffic))
Nevertheless, I answer your question: you can close the site from indexing in the robots.txt file, it is located in the initial folder with the site files. You can view it at site.ru/robots.txt. To prevent search engines from indexing the site, you need to replace its content with the following two lines:

User-agent: *
Disallow: /