The traffic from the referrer is useful for sites rank and promotion but some time wrong referrer can cause the bandwidth and ddos attacks therefore its always better to block such spam referrer. We can block the single referrer by using the following code in the .htaccess file.
The following code will disable the referrer from blocksinglereferrer.com
RewriteEngine on
# Options +FollowSymlinks
RewriteCond %{HTTP_REFERER} blocksinglereferrer\.com [NC]
RewriteRule .* – [F]
If you are facing the problem from too many referrer sites then you can refer to the following code.
RewriteEngine on
# Options +FollowSymlinks
RewriteCond %{HTTP_REFERER} blocksinglereferrer\.com [NC,OR]
RewriteCond %{HTTP_REFERER} blocksinglereferrer1\.com
RewriteRule .* – [F]
In above code the referrer from blocksinglereferrer.com and blocksinglereferrer1.com disabled.
