# Starts With: Login Hosts

startswith matches the beginning of a value: here every FQDN that starts with login., such as login.acme.example.

Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/startswith-login-hosts/

Last updated: 2026-09-26

---
`POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25`

Example 3 of 9 in **Combinations › Operators** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/)

Tags: `field` `fqdn` · `operator` `startswith` · `logic` `must`

`startswith` matches the beginning of a value: here every FQDN that starts with `login.`, such as `login.acme.example`.

## Request

| Parameter | In | Value |
|---|---|---|
| `page_size` | query | `25` |
| `filters.must[0].name` | body | `fqdn` |
| `filters.must[0].type` | body | `startswith` |
| `filters.must[0].value` | body | `login.` |

```bash
curl -X POST 'https://api.deepinfo.com/v1/discovery/domain-search?page_size=25' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "filters": {
    "must": [
      {
        "name": "fqdn",
        "type": "startswith",
        "value": "login."
      }
    ]
  }
}'
```

## Response

### 200 · OK

> Shortened for this page: results: 3 of 25 shown; results[].domain.ip_history: first 10 items; results[].ip_history: first 10 items

`Content-Type: application/json` · `ratelimit-limit: 1000` · `ratelimit-remaining: 999` · `ratelimit-reset: 1` · `x-ratelimit-limit-hour: 100000` · `x-ratelimit-limit-minute: 10000` · `x-ratelimit-limit-second: 1000` · `x-ratelimit-remaining-hour: 99846` · `x-ratelimit-remaining-minute: 9997` · `x-ratelimit-remaining-second: 999` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a`

```json
{
  "page": 1,
  "page_size": 25,
  "result_count": 1618093,
  "results": [
    {
      "punycode": "login.london",
      "unicode": "login.london",
      "is_idn": false,
      "subdomain": null,
      "subdomain_last": null,
      "subdomain_root": null,
      "name": {
        "punycode": "login",
        "unicode": "login",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 5,
        "lang": "en",
        "keywords": [
          "login"
        ],
        "keyword_count": 1,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "login.london",
        "unicode": "login.london",
        "is_idn": false,
        "name": {
          "punycode": "login",
          "unicode": "login",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 5,
          "lang": "en",
          "keywords": [
            "login"
          ],
          "keyword_count": 1
        },
        "extension": {
          "punycode": "london",
          "unicode": "london",
          "is_idn": false
        },
        "extension_root": {
          "punycode": "london",
          "unicode": "london",
          "is_idn": false
        },
        "extension_sub": null,
        "extension_type": 1,
        "reserved": null,
        "premium": null,
        "registered": true,
        "whois": {
          "create_date": "2017-07-20T22:14:20Z",
          "update_date": "2026-07-20T21:52:45Z",
          "expiry_date": "2027-07-20T23:59:59Z",
          "registrar": "hosting concepts b.v. d/b/a registrar.eu",
          "registrant": {
            "name": null,
            "organization": null,
            "street": null,
            "city": null,
            "state": "zuid-holland",
            "postal_code": null,
            "country": null,
            "phone": null,
            "email": null
          },
          "name_servers": [
            "ns1.openprovider.nl",
            "ns2.openprovider.be",
            "ns3.openprovider.eu"
          ],
          "domain_status": [
            "clienttransferprohibited",
            "renewperiod"
          ],
          "whois_server": "whois.nic.london",
          "check_date": "2026-07-23T19:21:53Z"
        },
        "whois_normalized": {
          "registrant": null
        },
        "whois_last_check_date": "2026-07-23T19:21:53Z",
        "whois_create_date_historical": [
          "2017-07-20T22:14:20Z"
        ],
        "whois_last_change_date": "2026-07-23T19:21:56Z",
        "whois_registrant_email_historical": [
          "please query the rdds service of the registrar of record identified in this output for information on how to contact the registrant, admin, or tech contact of the queried domain name."
        ],
        "whois_privacy_enabled": null,
        "dns": {
          "a": {
            "update_date": "2026-08-29T04:44:04Z",
            "ip_addresses": [
              "157.90.208.78"
            ]
          }
        },
        "dns_last_change_date": null,
        "ip_history": [
          "157.90.208.78"
        ],
        "ssl": {
          "validity": {
            "start_date": "2021-09-21T09:22:08Z",
            "end_date": "2021-12-20T09:22:07Z"
          },
          "serial_number": "323592599033214655972871592213813824848062",
          "check_date": "2021-10-09T06:07:12Z"
        },
        "ssl_last_change_date": "2026-02-15T11:33:06Z"
      },
      "type": 1,
      "subdomain_level_count": 0,
      "dns": {
        "a": {
          "update_date": "2026-08-29T04:44:04Z",
          "ip_addresses": [
            "157.90.208.78"
          ]
        },
        "aaaa": {
          "update_date": "2026-08-29T04:44:04Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-08-29T04:44:04Z",
          "name_servers": [
            "ns1.openprovider.nl",
            "ns2.openprovider.be",
            "ns3.openprovider.eu"
          ]
        },
        "mx": {
          "update_date": "2026-08-29T04:44:04Z",
          "mail_servers": [
            "mail.login.london"
          ]
        },
        "soa": {
          "update_date": "2026-08-29T04:44:04Z",
          "mnames": [
            "ns1.openprovider.nl"
          ],
          "rnames": [
            "dns.openprovider.eu"
          ],
          "rname_emails": [
            "user@openprovider.eu"
          ]
        },
        "txt": {
          "update_date": "2026-08-29T04:44:04Z",
          "values": [
            "\"v=spf1 +a +mx +ip4:157.90.208.78: ~all\""
          ]
        },
        "cname": {
          "update_date": "2026-08-29T04:44:04Z",
          "values": []
        },
        "others": []
      },
      "dns_last_change_date": null,
      "ip_history": [
        "157.90.208.78"
      ],
      "ssl": {
        "tags": [],
        "fqdns": [
          "web-giga.rootpal.com"
        ],
        "version": 3,
        "serial_number": "323592599033214655972871592213813824848062",
        "fingerprint": {
          "sha256": "2dcff7bb83648b42b9e3e54250c24301e67da6296c4f247aead61b73e35ceb89",
          "sha1": "9e6ec32edd4d71d932bcb4a93f9251cacb999b30",
          "md5": "cd69e92c0a85db372b582959155518e6"
        },
        "validity": {
          "start_date": "2021-09-21T09:22:08Z",
          "end_date": "2021-12-20T09:22:07Z",
          "length": 7775999
        },
        "signature": {
          "is_self_signed": false,
          "is_valid": false,
          "value": "mSxO561QYf7rmgGJKe8OYGrLtPcBdRbfbl4rF+Tk3Za2NLQz6/KsRRW6O9KCZMw8LGCjxyy1yha4GKYhlGx0s+wtr9JYdNomW6jrIBDHaErIxkmWIwr74zZdT6fMAaxj+8MmjQR4fUffCw22xjZggKCipEFqHhMXnPUS/rypju2kL/kIr88oIdG8t6NPma4kyyKgStBIpsjLP0D2r0+xosM+wXa4e883nZqHyu7CVQC0+gnpEUzjQw4+/AyoAdTBmDIqPc3LqM+TKqfIZlxFEISGaYIEY+oMjDwE//l1ClSH916WLIAg5/v+wsPZQ/9f4NKcHRqpZ9OD3k12tIighg==",
          "algorithm": {
            "oid": "1.2.840.113549.1.1.11",
            "name": "sha256"
          }
        },
        "issuer_dn": "CN=R3,O=Let's Encrypt,C=US",
        "issuer": {
          "common_name": "R3",
          "country": "US",
          "state": null,
          "locality": null,
          "organization": "Let's Encrypt",
          "organizational_unit": null
        },
        "subject_dn": "CN=web-giga.rootpal.com",
        "subject": {
          "common_name": "web-giga.rootpal.com",
          "country": null,
          "state": null,
          "locality": null,
          "organization": null,
          "organizational_unit": null
        },
        "extensions": {
          "authority_key_id": "FC6zF7dYVsuuUAlA5h+vnYsUwsY=",
          "basic_constraints": {
            "is_ca": false
          },
          "certificate_policies": [
            "2.23.140.1.2.1",
            "1.3.6.1.4.1.44947.1.1.1"
          ],
          "extended_key_usage": {
            "client_auth": true,
            "server_auth": true
          },
          "key_usage": {
            "digital_signature": true,
            "content_commitment": false,
            "key_agreement": false,
            "data_encipherment": false,
            "key_encipherment": true,
            "key_cert_sign": false,
            "crl_sign": false
          },
          "signed_certificate_timestamps": [
            "2021-09-21T10:22:08Z"
          ],
          "subject_alt_name": {
            "dns_names": [
              "web-giga.rootpal.com"
            ]
          },
          "subject_key_id": "HG1wemDunxiIKlo2FveQALbadWg="
        },
        "check_date": "2021-10-09T06:07:12Z"
      },
      "ssl_last_change_date": "2026-02-15T11:33:06Z",
      "webdata": {
        "connection_status": "timeout",
        "html": null,
        "http": null
      }
    },
    {
      "punycode": "login.edu.vn",
      "unicode": "login.edu.vn",
      "is_idn": false,
      "subdomain": null,
      "subdomain_last": null,
      "subdomain_root": null,
      "name": {
        "punycode": "login",
        "unicode": "login",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 5,
        "lang": "en",
        "keywords": [
          "login"
        ],
        "keyword_count": 1,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "login.edu.vn",
        "unicode": "login.edu.vn",
        "is_idn": false,
        "name": {
          "punycode": "login",
          "unicode": "login",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 5,
          "lang": "en",
          "keywords": [
            "login"
          ],
          "keyword_count": 1
        },
        "extension": {
          "punycode": "edu.vn",
          "unicode": "edu.vn",
          "is_idn": false
        },
        "extension_root": {
          "punycode": "vn",
          "unicode": "vn",
          "is_idn": false
        },
        "extension_sub": {
          "punycode": "edu",
          "unicode": "edu",
          "is_idn": false
        },
        "extension_type": 2,
        "reserved": null,
        "premium": null,
        "registered": null,
        "whois": null,
        "whois_normalized": null,
        "whois_last_check_date": null,
        "whois_create_date_historical": [],
        "whois_last_change_date": null,
        "whois_registrant_email_historical": [],
        "whois_privacy_enabled": null,
        "dns": {
          "a": {
            "update_date": "2026-08-08T20:59:36Z",
            "ip_addresses": [
              "207.148.97.238"
            ]
          }
        },
        "dns_last_change_date": "2026-05-13T16:15:39Z",
        "ip_history": [
          "104.21.76.225",
          "172.67.201.234",
          "104.21.112.1",
          "104.21.16.1",
          "104.21.32.1",
          "104.21.48.1",
          "104.21.64.1",
          "104.21.80.1",
          "104.21.96.1",
          "117.122.125.107"
        ],
        "ssl": {
          "validity": {
            "start_date": "2026-07-12T20:50:08Z",
            "end_date": "2026-10-10T20:50:07Z"
          },
          "serial_number": "475983581382028086912934461887043072970680",
          "check_date": "2026-08-09T15:44:13Z"
        },
        "ssl_last_change_date": "2026-08-09T15:44:57Z"
      },
      "type": 1,
      "subdomain_level_count": 0,
      "dns": {
        "a": {
          "update_date": "2026-08-08T20:59:36Z",
          "ip_addresses": [
            "207.148.97.238"
          ]
        },
        "aaaa": {
          "update_date": "2026-08-08T20:59:36Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-08-08T20:59:36Z",
          "name_servers": [
            "ns-b1.tenten.vn",
            "ns-b2.tenten.vn",
            "ns-b3.tenten.vn"
          ]
        },
        "mx": {
          "update_date": "2026-08-08T20:59:36Z",
          "mail_servers": []
        },
        "soa": {
          "update_date": "2026-08-08T20:59:36Z",
          "mnames": [
            "ns-b3.tenten.vn"
          ],
          "rnames": [
            "noreply.tenten.vn"
          ],
          "rname_emails": [
            "user@tenten.vn"
          ]
        },
        "txt": {
          "update_date": "2026-08-08T20:59:36Z",
          "values": [
            "\"google-site-verification=IhpFAl2t9C6uoGE45u0k-ZlsBEQhmMxRAF8-8JfPybY\""
          ]
        },
        "cname": {
          "update_date": "2026-08-08T20:59:36Z",
          "values": []
        },
        "others": []
      },
      "dns_last_change_date": "2026-05-13T16:15:39Z",
      "ip_history": [
        "104.21.76.225",
        "172.67.201.234",
        "104.21.112.1",
        "104.21.16.1",
        "104.21.32.1",
        "104.21.48.1",
        "104.21.64.1",
        "104.21.80.1",
        "104.21.96.1",
        "117.122.125.107"
      ],
      "ssl": {
        "tags": [
          "dla"
        ],
        "fqdns": [
          "login.edu.vn",
          "www.login.edu.vn"
        ],
        "version": 3,
        "serial_number": "475983581382028086912934461887043072970680",
        "fingerprint": {
          "sha256": "8a7a3e026c9585099e3eba47bf1c0ad7393c3e0d036ac9870d1f3125a27c0bbc",
          "sha1": "ddbe4116a7587e7ee865465e4db1525e5292deca",
          "md5": "4c81261850874b60c2d4a8ab5fb43316"
        },
        "validity": {
          "start_date": "2026-07-12T20:50:08Z",
          "end_date": "2026-10-10T20:50:07Z",
          "length": 7775999
        },
        "signature": {
          "is_self_signed": false,
          "is_valid": true,
          "value": "M9Co1Hmnd6i95IEvkPxrB0Nc3sJfOYdnlFyHxOCX1b3IN6zyQJqsGuAfMQu+eSfeGE9NuEDd5NZK5eS/kLI+6Oo9zj/Yn2zUVmpnwHuaJ5U3gH9px2OQ+cvg3f1F+Fd56EfUTE14g7q1zkgK3I7z8RgLA5LiSy+x9rORHxrQCP4tni2I7VydGjoKHo+ObMx8TIqz35b489KqAhhBhQExG2DpzIStDjeMQszBNYbBJM8XvccNVgG8258qnEGp2WGGUX3cXrU4HwiMKQHiYjcPC43sy0pYvL5i0wrONFEtQzGkfUZAGwGOc8V4LbCTXvoM/pP24LBU21YiP7jXRrz8Bw==",
          "algorithm": {
            "oid": "1.2.840.113549.1.1.11",
            "name": "sha256"
          }
        },
        "issuer_dn": "CN=YR2,O=Let's Encrypt,C=US",
        "issuer": {
          "common_name": "YR2",
          "country": "US",
          "state": null,
          "locality": null,
          "organization": "Let's Encrypt",
          "organizational_unit": null
        },
        "subject_dn": "CN=login.edu.vn",
        "subject": {
          "common_name": "login.edu.vn",
          "country": null,
          "state": null,
          "locality": null,
          "organization": null,
          "organizational_unit": null
        },
        "extensions": {
          "authority_key_id": "QBUtJnntMiCe35pyHdYyH4EMgQw=",
          "basic_constraints": {
            "is_ca": false
          },
          "certificate_policies": [
            "2.23.140.1.2.1"
          ],
          "extended_key_usage": {
            "client_auth": null,
            "server_auth": true
          },
          "key_usage": {
            "digital_signature": true,
            "content_commitment": false,
            "key_agreement": false,
            "data_encipherment": false,
            "key_encipherment": true,
            "key_cert_sign": false,
            "crl_sign": false
          },
          "signed_certificate_timestamps": [
            "2026-07-12T21:48:38Z",
            "2026-07-12T21:48:39Z"
          ],
          "subject_alt_name": {
            "dns_names": [
              "login.edu.vn",
              "www.login.edu.vn"
            ]
          },
          "subject_key_id": "QgEEv56blT9HiXMysmy47pS0cGA="
        },
        "check_date": "2026-08-09T15:44:13Z"
      },
      "ssl_last_change_date": "2026-08-09T15:44:56Z",
      "webdata": {
        "connection_status": "success",
        "html": {
          "source_code_hash": "388a44dcf97c7ba03e4ee920328ddeceaf9b6a1137f115d71c15a7ff4532cd6e"
        },
        "http": {
          "status_code_first": 301,
          "status_code_last": 200,
          "redirection_history": [
            {
              "url": "http://login.edu.vn/",
              "status_code": 301
            },
            {
              "url": "https://login.edu.vn/",
              "status_code": 200
            }
          ],
          "external_redirection": false,
          "final_url": "https://login.edu.vn/",
          "final_fqdn": "login.edu.vn",
          "final_domain": "login.edu.vn",
          "headers": {
            "others": [
              {
                "name": "transfer_encoding",
                "value": "chunked"
              },
              {
                "name": "connection",
                "value": "keep-alive"
              },
              {
                "name": "vary",
                "value": "Accept-Encoding"
              },
              {
                "name": "date",
                "value": "Sun, 02 Aug 2026 14:03:20 GMT"
              }
            ],
            "access_control_allow_headers": null,
            "access_control_allow_methods": null,
            "access_control_allow_origin": null,
            "cache_control": "no-cache, private",
            "clear_site_data": null,
            "content_encoding": "gzip",
            "content_security_policy": null,
            "content_type": "text/html; charset=UTF-8",
            "cross_origin_embedder_policy": null,
            "cross_origin_opener_policy": null,
            "cross_origin_resource_policy": null,
            "expect_ct": null,
            "feature_policy": null,
            "last_modified": null,
            "permission_policy": null,
            "referrer_policy": null,
            "server": "nginx/1.14.0 (Ubuntu)",
            "set_cookie": "XSRF-TOKEN=<value>; expires=Sun, 02-Aug-2026 16:03:20 GMT; Max-Age=7200; path=/, laravel_session=<value>; expires=Sun, 02-Aug-2026 16:03:20 GMT; Max-Age=7200; path=/; httponly",
            "strict_transport_security": null,
            "x_content_type_options": null,
            "x_download_options": null,
            "x_frame_options": null,
            "x_permitted_cross_domain_policies": null,
            "x_powered_by": null,
            "x_xss_protection": null
          },
          "cookies": [
            {
              "name": "XSRF-TOKEN",
              "value": "<value>"
            },
            {
              "name": "laravel_session",
              "value": "<value>"
            }
          ]
        }
      }
    },
    {
      "punycode": "login.nl",
      "unicode": "login.nl",
      "is_idn": false,
      "subdomain": null,
      "subdomain_last": null,
      "subdomain_root": null,
      "name": {
        "punycode": "login",
        "unicode": "login",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 5,
        "lang": "en",
        "keywords": [
          "login"
        ],
        "keyword_count": 1,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "login.nl",
        "unicode": "login.nl",
        "is_idn": false,
        "name": {
          "punycode": "login",
          "unicode": "login",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 5,
          "lang": "en",
          "keywords": [
            "login"
          ],
          "keyword_count": 1
        },
        "extension": {
          "punycode": "nl",
          "unicode": "nl",
          "is_idn": false
        },
        "extension_root": {
          "punycode": "nl",
          "unicode": "nl",
          "is_idn": false
        },
        "extension_sub": null,
        "extension_type": 2,
        "reserved": null,
        "premium": null,
        "registered": true,
        "whois": {
          "create_date": "1998-12-09T00:00:00Z",
          "update_date": "2025-12-31T00:00:00Z",
          "expiry_date": null,
          "registrar": "registrar.eu",
          "registrant": {
            "name": null,
            "organization": null,
            "street": null,
            "city": null,
            "state": null,
            "postal_code": null,
            "country": null,
            "phone": null,
            "email": null
          },
          "name_servers": [
            "ns1.openprovider.nl",
            "ns2.openprovider.be",
            "ns3.openprovider.eu"
          ],
          "domain_status": [
            "active"
          ],
          "whois_server": null,
          "check_date": "2026-07-06T23:23:50Z"
        },
        "whois_normalized": {
          "registrant": null
        },
        "whois_last_check_date": "2026-07-06T23:23:50Z",
        "whois_create_date_historical": [
          "1998-12-09T00:00:00Z"
        ],
        "whois_last_change_date": "2026-07-05T15:02:21Z",
        "whois_registrant_email_historical": [],
        "whois_privacy_enabled": null,
        "dns": {
          "a": {
            "update_date": "2026-08-26T21:54:06Z",
            "ip_addresses": [
              "134.209.139.60"
            ]
          }
        },
        "dns_last_change_date": "2026-08-27T15:03:18Z",
        "ip_history": [
          "37.34.51.105",
          "157.90.208.78",
          "162.55.27.108",
          "68.66.248.51",
          "134.209.139.60"
        ],
        "ssl": null,
        "ssl_last_change_date": "2023-05-22T04:12:21Z"
      },
      "type": 1,
      "subdomain_level_count": 0,
      "dns": {
        "a": {
          "update_date": "2026-08-26T21:54:06Z",
          "ip_addresses": [
            "134.209.139.60"
          ]
        },
        "aaaa": {
          "update_date": "2026-08-26T21:54:06Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-08-26T21:54:06Z",
          "name_servers": [
            "ns1.openprovider.nl",
            "ns2.openprovider.be",
            "ns3.openprovider.eu"
          ]
        },
        "mx": {
          "update_date": "2026-08-26T21:54:06Z",
          "mail_servers": [
            "pixel.mxrouting.net",
            "pixel-relay.mxrouting.net"
          ]
        },
        "soa": {
          "update_date": "2026-08-26T21:54:06Z",
          "mnames": [
            "ns1.openprovider.nl"
          ],
          "rnames": [
            "dns.openprovider.eu"
          ],
          "rname_emails": [
            "user@openprovider.eu"
          ]
        },
        "txt": {
          "update_date": "2026-08-26T21:54:06Z",
          "values": [
            "\"v=spf1 include:mxlogin.com -all\""
          ]
        },
        "cname": {
          "update_date": "2026-08-26T21:54:06Z",
          "values": []
        },
        "others": []
      },
      "dns_last_change_date": "2026-08-27T15:03:16Z",
      "ip_history": [
        "37.34.51.105",
        "157.90.208.78",
        "162.55.27.108",
        "68.66.248.51",
        "134.209.139.60"
      ],
      "ssl": null,
      "ssl_last_change_date": "2023-05-22T04:12:20Z",
      "webdata": {
        "connection_status": "thread_timeout",
        "html": null,
        "http": null
      }
    }
  ]
}
```

## Related Examples

- [Wildcard Certificates From Let's Encrypt](/reference/discovery/domain-search/examples/wildcard-certificates-from-lets-encrypt/)
- [Look Up an Exact FQDN](/reference/discovery/domain-search/examples/fqdn/)
- [Powered by PHP](/reference/discovery/domain-search/examples/webdata-http-headers-x-powered-by/)
- [Sets a PHP Session Cookie](/reference/discovery/domain-search/examples/webdata-http-headers-set-cookie/)
- [HTML Content Type](/reference/discovery/domain-search/examples/webdata-http-headers-content-type/)
- [Cache-Control With a Max Age](/reference/discovery/domain-search/examples/webdata-http-headers-cache-control/)
