It is very important to take the health of our websites seriously, by this I mean to carry out periodic reviews to avoid being victims of some type of attack that includes scripts on our pages, causing search engines to label us as a suspicious site, which would be very bad for positioning and therefore traffic growth.
For this reason it is very useful to do a periodic review with Google, which will tell us what the status of our site is in its records, how many of the indexed pages were marked as suspicious, what type of infection we are being intermediaries for and if through Of us other sites have been infected.
The URL for the diagnosis is the following, change the domain name seed.com.co to the URL for yours http://google.com/safebrowsing/diagnostic?site=seed.com.co/&hl=es In the case If your site is registered as suspicious, the recommendation is to register a Webmaster account with Google if you do not have one and add it to your list, this way Google will show you which pages have been marked as suspicious and what are the recommendations for clean them. The most common thing in these cases is that it is a script injection type attack where the attacker manages to embed malicious code at the beginning or end of their files.