Kibana query exact match
Just giving more visibility to @dezhi's comment.
in newer version of ES(5.x, 6.x),
you should use `url.keyword` instead,
as they have changed to a new keyword type.
Therefore, it would be:
url.keyword : "http://www.domain_name.com"
I had a similar issue, and ifound that ".raw" fixed it - in your example, try
url.raw : "http://www.domain_name.com"