Bloquear el spam referral desde el archivo .htaccess.
Lista de spam referral:
- webmaster-traffic.com
- Get-Free-Traffic-Now.com
- buy-cheap-online.info
- theguardlan.com
- hol.es (sexyteens.hol.es)
- free-share-buttons.com
- buttons-for-your-website.com
- buttons-for-website.com
- seoanalyses.com
- lumb.co
- darodar.com
- blackhatworth.com
- 7makemoneyonline.com
- best-seo-solution.com
- best-seo-offer.com
- o-o-6-o-o.com
- blackhatworth.com
- econom.co
- hulfingtonpost.com
- ilovevitaly.co
- ilovevitaly.com
- bestwebsitesawards.com
- humanorightswatch.org
- semalt.com