While looking over my site stats, I see a distinct trend that a group of sites "xyz-123.XX.tf" are visiting my blog. They seem to be concentrated in Germany.
Should I be concerned? I've read about web scraping as well as other sites injecting code into WordPress before. Even in the event that no harm is being done, the sites visiting me aren't what I would consider "reputable" or even "real" pages that have content or serve a purpose beyond aggregating what is on my blog. Is it possible to block or hide content from them so they cannot simply view everything in a single pass? I've started including the 'more' button thinking that may help.
Thanks in advance!
The blog I need help with is askmrsarcasm.wordpress.com.