An example of a confusing mapping in elasticsearch.

gistfile1.txt

curl -XDELETE http://localhost:27000/sandbox

curl -XPUT http://localhost:27000/sandbox -d '{
}'

curl -XPUT http://localhost:27000/sandbox/websites/_mapping -d '{
  "websites" : {
    "properties" : {
      "tags" : {
        "type" : "string"
      },
      "url": {
        "type": "string",
        "index": "no",
        "include_in_all": "true"
      }
    }
  }
}'

curl -XPUT http://localhost:27000/sandbox/websites/1?refresh=1 -d '{
  "text": "sample text computer",
  "url": "www.domain.com"
}'

curl -XGET http://localhost:27000/sandbox/_search

curl -XGET http://localhost:27000/sandbox/websites/_search -d '{
  "query": {
    "term": {
      "_all": "www.domain.com"
    }
  }
}'

This will give a hit, the "include_in_all" means the string is run through the _all analyzer, which would be the standard one, unless you specify otherwise.