"red link" meaning in English

{
  "antonyms": [
    {
      "word": "blue link"
    }
  ],
  "etymology_text": "In most wikis, a link to a nonexistent page appears in red text.",
  "forms": [
    {
      "form": "red links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red link (plural red links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Wiki",
          "orig": "en:Wiki",
          "parents": [
            "World Wide Web",
            "Internet",
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "red-linked"
        }
      ],
      "glosses": [
        "A red hyperlink that directs to a nonexistent page of a wiki."
      ],
      "id": "en-red_link-en-noun-E66uEmCD",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "jargon",
          "jargon"
        ],
        [
          "hyperlink",
          "hyperlink"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "nonexistent",
          "nonexistent"
        ],
        [
          "page",
          "page"
        ],
        [
          "wiki",
          "wiki"
        ]
      ],
      "raw_glosses": [
        "(Internet, Wikimedia jargon) A red hyperlink that directs to a nonexistent page of a wiki."
      ],
      "synonyms": [
        {
          "word": "redlink"
        }
      ],
      "tags": [
        "Internet"
      ],
      "taxonomic": "Wikimedia jargon",
      "translations": [
        {
          "alt": "waṣla(t) ḥamrāʔ",
          "code": "ar",
          "lang": "Arabic",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "وَصْلَة حَمْرَاء"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "lien rouge"
        }
      ]
    }
  ],
  "word": "red link"
}

{
  "antonyms": [
    {
      "word": "blue link"
    }
  ],
  "derived": [
    {
      "word": "red-linked"
    }
  ],
  "etymology_text": "In most wikis, a link to a nonexistent page appears in red text.",
  "forms": [
    {
      "form": "red links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red link (plural red links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Translation table header lacks gloss",
        "en:Internet",
        "en:Wiki"
      ],
      "glosses": [
        "A red hyperlink that directs to a nonexistent page of a wiki."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "jargon",
          "jargon"
        ],
        [
          "hyperlink",
          "hyperlink"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "nonexistent",
          "nonexistent"
        ],
        [
          "page",
          "page"
        ],
        [
          "wiki",
          "wiki"
        ]
      ],
      "raw_glosses": [
        "(Internet, Wikimedia jargon) A red hyperlink that directs to a nonexistent page of a wiki."
      ],
      "tags": [
        "Internet"
      ],
      "taxonomic": "Wikimedia jargon"
    }
  ],
  "synonyms": [
    {
      "word": "redlink"
    }
  ],
  "translations": [
    {
      "alt": "waṣla(t) ḥamrāʔ",
      "code": "ar",
      "lang": "Arabic",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "وَصْلَة حَمْرَاء"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "lien rouge"
    }
  ],
  "word": "red link"
}