Dear experts, yesterday for the first time happened a weird thing. I got an assignment to review and then do onpage SEO for a website. It is an legal consulting company`s website.
I added webmaster and analytics to the site last week. I got report for behaviour- pageviews and all the pages are 404 links and of porn sites such as www.xyz.com//pornbc.com or xyz.com//abc-porn.in
I tried to find such links on site or sitemap but not found any. What are these links and how can I found them so that I get them removed. Is it something nasty done by website development and running company. They are actually providing in bulk for about 20USD annually per site.