Strange logs in Apache, what is it?

Question

linux

Today I went into the Apache logs (access.log) and saw a lot of oddities, for example:

210.51.13.121 - - [16/Nov/2016:09:00:01 +0300] "GET /info/index.php?get_js&domen=wyxspa.com HTTP/1.0" 404 476 "-" "-"

50.62.161.37 - - [16/Nov/2016:09:00:01 +0300] "GET /info/index.php?get_js&domen=yourhealthsavingsite.com HTTP/1.1" 404 457 "-" "Opera/9.80 (Windows NT 6.1; U; MRA 5.10 (build 5231); ru) Presto/2.10.289 Version/12.00"

50.62.161.37 - - [16/Nov/2016:09:00:01 +0300] "GET /info/index.php?get_js&domen=yourhealthsavingsite.com HTTP/1.1" 404 457 "-" "Opera/9.80 (Windows NT 6.1; U; MRA 5.10 (build 5231); ru) Presto/2.10.289 Version/12.00"

What are these requests? I don't have domains like these on my server that appear in the logs:
yourhealthsavingsite.com
wyxspa.com

Answer 1

It's just that a bot visited your site and passed its domain to the GET parameter.
If it's not clear, access.log contains all requests to your server.