"refback" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "referer",
        "3": "back"
      },
      "expansion": "Blend of referer + back",
      "name": "blend"
    }
  ],
  "etymology_text": "Blend of referer + back",
  "forms": [
    {
      "form": "refbacks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "refback (plural refbacks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English blends",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "pingback"
        },
        {
          "word": "trackback"
        }
      ],
      "glosses": [
        "The use of the optional HTML referer header to obtain information about web pages or proxy servers bringing traffic to a web page."
      ],
      "hypernyms": [
        {
          "word": "linkback"
        }
      ],
      "id": "en-refback-en-noun-2-AeAw7L",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "web page",
          "web page"
        ]
      ],
      "raw_glosses": [
        "(Internet) The use of the optional HTML referer header to obtain information about web pages or proxy servers bringing traffic to a web page."
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "word": "refback"
}

{
  "coordinate_terms": [
    {
      "word": "pingback"
    },
    {
      "word": "trackback"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "referer",
        "3": "back"
      },
      "expansion": "Blend of referer + back",
      "name": "blend"
    }
  ],
  "etymology_text": "Blend of referer + back",
  "forms": [
    {
      "form": "refbacks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "refback (plural refbacks)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "linkback"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English blends",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English phrasal nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Internet"
      ],
      "glosses": [
        "The use of the optional HTML referer header to obtain information about web pages or proxy servers bringing traffic to a web page."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "web page",
          "web page"
        ]
      ],
      "raw_glosses": [
        "(Internet) The use of the optional HTML referer header to obtain information about web pages or proxy servers bringing traffic to a web page."
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "word": "refback"
}