search_doffin

Search Norwegian public procurement notices on Doffin.

Signature: search_doffin(query: string, optional, default ''; types: list of string (comma-separated), optional, default None; statuses: list of string (comma-separated), optional, default None; contract_nature: list of string (comma-separated), optional, default None; cpv_codes: list of string (comma-separated), optional, default None; locations: list of string (comma-separated), optional, default None; buyer: list of string (comma-separated), optional, default None; winner: list of string (comma-separated), optional, default None; date_from: string, optional, default None; date_to: string, optional, default None; sort_by: string, optional, default 'RELEVANCE'; page: integer, optional, default 1; hits_per_page: integer, optional, default 10; include_placeholders: yes/no, optional, default False; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)

Direct GET

For navigating agents: open the HTML page with parameters in the URL. The result is fetched and displayed without screenshots or form filling.

Open this validated HTML GET URL

https://allemannsdata.com/wiki/kilder/doffin/search_doffin/?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace {query}, {types}, {statuses}, {contract_nature}, {cpv_codes}, {locations}, {buyer}, {winner}, {date_from}, {date_to}, {sort_by}, {page}, {hits_per_page}, {include_placeholders} with values. Remove unused optional parameters from the URL.

For software and dashboards: Read the operation descriptor. The JSON GET template is https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0. Open this exact request as JSON.

ParameterRequirementJSON typeDescription
queryoptionalstringFree-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.
typesoptionalunionFilter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.
statusesoptionalunionACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.
contract_natureoptionalunionWORKS, SERVICES and/or SUPPLIES.
cpv_codesoptionalunion8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.
locationsoptionalunionNUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().
buyeroptionalunionBuyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.
winneroptionalunionDoffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.
date_fromoptionalunionPublication date lower bound, "YYYY-MM-DD".
date_tooptionalunionPublication date upper bound, "YYYY-MM-DD".
sort_byoptionalstringRELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.
pageoptionalinteger1-based page number.
hits_per_pageoptionalinteger1-50 (default 10).
include_placeholdersoptionalbooleanBy default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.
limitoptionalintegerGateway page size; default 25, maximum 100.
offsetoptionalintegerNumber of list items to skip; default 0.
Generated JavaScript, Python and response structure

Use JSON when the user requests code, machine-readable data, value extraction or further computation. Use the HTML GET page to identify the correct source and verify parameters.

Example for generated JavaScript and Python

https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace URL placeholders and remove unused optional parameters.

JavaScript in a dashboard

const url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0";
const response = await fetch(url);
if (!response.ok) {
  const failure = await response.json();
  throw new Error(`${failure.error.code}: ${failure.error.message} ${failure.suggestion}`);
}
const result = await response.json();
const data = result.data;

Python without additional packages

import json
from urllib.request import urlopen

url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "doffin",
  "operation": "search_doffin",
  "parameters": {},
  "data": {},
  "entities": [],
  "_meta": {"retrieved_at": "...", "sources": [], "cache": {}},
  "_links": {"self": "...", "source": "...", "wiki": "...", "feedback": "..."}
}
Form for manual use

The form is a fallback for people and browser agents that cannot open the GET URL directly.

Type: string. Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.
Type: list of string (comma-separated). Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.
Type: list of string (comma-separated). ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.
Type: list of string (comma-separated). WORKS, SERVICES and/or SUPPLIES.
Type: list of string (comma-separated). 8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.
Type: list of string (comma-separated). NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().
Type: list of string (comma-separated). Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.
Type: list of string (comma-separated). Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.
Type: string. Publication date lower bound, "YYYY-MM-DD".
Type: string. Publication date upper bound, "YYYY-MM-DD".
Type: string. RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.
Type: integer. 1-based page number.
Type: integer. 1-50 (default 10).
Type: yes/no. By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.

Result

Source: Doffin and TED. Retrieved 2026-10-30T23:13:22Z in 0.150 seconds.

total_count:
5
hits:

5 results

  1. id:
    2025-101119
    buyer:

    1 results

    1. id:
      7fcceaaff6948f767e629e00b5fcc8d1
      organization_id:
      916879067
      name:
      SYKEHUSINNKJØP HF
    heading:
    Intensjonskunngjøring: Fjernkjøling til Sykehuset Østfold Moss
    description:
    Moss Sykehus har flere store og et stort antall mindre kjøleaggregater som nærmer seg utgått levetid og har for neste kjølesesong sommeren 2025 ikke noe kjøleanlegg for ventilasjon Moss syd. Det er derfor nødvendig å få på plass et alternativ, helst innen 01.07.2025.Oppdragsgiver har konkludert med at fjernkjøling er mest hensiktsmessig og innebærer også størst potensiale for økonomiske besparelser.Lineage Moss Norway AS org nr 915129765 drifter et fryselager i umiddelbar nærhet til SØ Moss. De er villige til å levere fjernkjøling til Sykehuset Østfold Moss, og det finnes allerede en delvis fullført rørtrase for fjernkjøling mellom Lineage Moss Norway AS og Sykehuset Østfold Moss som Lineage Moss Norway disponerer. Lineage Moss Norway AS benytter naturlige kuldemedier på driften av sine kjøleaggregater i Moss.Oppdragsgiver har gjort undersøkelser i markedet og Lineage Moss Norway AS er etter oppdragsgivers kunnskap den eneste leverandøren som kan levere fjernkjøling til Sykehuset Østfold Moss innenfor et forsvarlig kostnadsnivå på grunn av at de har overskuddskjøling, disponerer rørtraseen og ligger nært til Moss Sykehus.Etter oppdragsgivers vurdering er vilkårene for anskaffelse uten konkurranse, jf. FOA § 13-4 b) nr. 2 oppfylt da konkurranse er umulig av tekniske årsaker. Det finnes heller ikke rimelige alternativer, jf. FOA § 13-4 b) annet punktum.
    location_id:

    4 results

    1. NO085
    2. NO084
    3. NO083
    4. NO082
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_INTENT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_INTENT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2025-01-24T14:02:20Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2025-01-27
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  2. id:
    2025-120278
    buyer:

    1 results

    1. id:
      c38d12c6c90924a1efb50d16884a2179
      organization_id:
      986399445
      name:
      INNOVASJON NORGE
    heading:
    Procurement Global corporate database platform
    description:
    Innovation Norway needs access to an extensive worldwide company database containing relevant and reliable information. This will make it possible for our employees to identify potential international partners for Norwegian businesses seeking to expand globally, as well as to create guest lists to international business events. We further need to be able to conduct company profiles with more in-depth information on specific companies. This is crucial for evaluating potential collaborations, investment opportunities, etc. The users of this database will be located across the world at our international offices as well as our offices nationally. We estimate that 100 people will need access to the database, and that the total number of exported lists will be around 10000 per year. The number of exported company profiles will be up to 3000 per year. Number of users using the solution at the same time is expected to be below 10 because of the global nature of the usage.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2025-12-15T12:13:04Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2025-12-16
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  3. id:
    2025-114308
    buyer:

    1 results

    1. id:
      c38d12c6c90924a1efb50d16884a2179
      organization_id:
      986399445
      name:
      INNOVASJON NORGE
    heading:
    Procurement Global corporate database platform
    description:
    Innovation Norway needs access to an extensive worldwide company database containing relevant and reliable information. This will make it possible for our employees to identify potential international partners for Norwegian businesses seeking to expand globally, as well as to create guest lists to international business events. We further need to be able to conduct company profiles with more in-depth information on specific companies. This is crucial for evaluating potential collaborations, investment opportunities, etc. The users of this database will be located across the world at our international offices as well as our offices nationally. We estimate that 100 people will need access to the database, and that the total number of exported lists will be around 10000 per year. The number of exported company profiles will be up to 3000 per year. Number of users using the solution at the same time is expected to be below 10 because of the global nature of the usage.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_COMPETITION
    allTypes:

    2 results

    1. COMPETITION
    2. ANNOUNCEMENT_OF_COMPETITION
    status:
    AWARDED
    issueDate:
    2025-10-03T07:52:27Z
    deadline:
    2025-11-03T11:00:00Z
    sentToTed:
    yes
    publicationDate:
    2025-10-06
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  4. id:
    2018-332056
    buyer:

    1 results

    1. id:
      283970113704ba77c3906323ffbc1448
      organization_id:
      964 964 610
      name:
      Vinje kommune
    heading:
    Reiselivstjenester
    description:
    Konkurransen gjelder avtale om levering av reiselivstjenester. Anskaffelsens verdi anslåes til: NOK 1.750.000,- eks mva pr år. Volumet er et estimat og er ikke bindende for oppdragsgiver.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2018-09-12T10:00:00Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2018-09-12
    placeOfPerformance:

    No results.

    procurementStrategicLabels:

    No results.

  5. id:
    2018-886293
    buyer:

    1 results

    1. id:
      283970113704ba77c3906323ffbc1448
      organization_id:
      964 964 610
      name:
      Vinje kommune
    heading:
    Reiselivstjenester
    description:
    Konkurransen gjelder avtale om levering av reiselivstjenester. Anskaffelsens verdi anslåes til: NOK 1.750.000,- eks mva pr år. Volumet er et estimat og er ikke bindende for oppdragsgiver.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_COMPETITION
    allTypes:

    2 results

    1. COMPETITION
    2. ANNOUNCEMENT_OF_COMPETITION
    status:
    EXPIRED
    issueDate:
    2018-06-06T10:00:00Z
    deadline:
    2018-08-13T10:00:00Z
    sentToTed:
    yes
    publicationDate:
    2018-06-06
    placeOfPerformance:

    No results.

    procurementStrategicLabels:

    No results.

limit:
25
offset:
0
returned:
5
has_more_results:
no
Show all fields in HTML
total_count:
5
hits:

5 results

  1. id:
    2025-101119
    buyer:

    1 results

    1. id:
      7fcceaaff6948f767e629e00b5fcc8d1
      organization_id:
      916879067
      name:
      SYKEHUSINNKJØP HF
    heading:
    Intensjonskunngjøring: Fjernkjøling til Sykehuset Østfold Moss
    description:
    Moss Sykehus har flere store og et stort antall mindre kjøleaggregater som nærmer seg utgått levetid og har for neste kjølesesong sommeren 2025 ikke noe kjøleanlegg for ventilasjon Moss syd. Det er derfor nødvendig å få på plass et alternativ, helst innen 01.07.2025.Oppdragsgiver har konkludert med at fjernkjøling er mest hensiktsmessig og innebærer også størst potensiale for økonomiske besparelser.Lineage Moss Norway AS org nr 915129765 drifter et fryselager i umiddelbar nærhet til SØ Moss. De er villige til å levere fjernkjøling til Sykehuset Østfold Moss, og det finnes allerede en delvis fullført rørtrase for fjernkjøling mellom Lineage Moss Norway AS og Sykehuset Østfold Moss som Lineage Moss Norway disponerer. Lineage Moss Norway AS benytter naturlige kuldemedier på driften av sine kjøleaggregater i Moss.Oppdragsgiver har gjort undersøkelser i markedet og Lineage Moss Norway AS er etter oppdragsgivers kunnskap den eneste leverandøren som kan levere fjernkjøling til Sykehuset Østfold Moss innenfor et forsvarlig kostnadsnivå på grunn av at de har overskuddskjøling, disponerer rørtraseen og ligger nært til Moss Sykehus.Etter oppdragsgivers vurdering er vilkårene for anskaffelse uten konkurranse, jf. FOA § 13-4 b) nr. 2 oppfylt da konkurranse er umulig av tekniske årsaker. Det finnes heller ikke rimelige alternativer, jf. FOA § 13-4 b) annet punktum.
    location_id:

    4 results

    1. NO085
    2. NO084
    3. NO083
    4. NO082
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_INTENT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_INTENT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2025-01-24T14:02:20Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2025-01-27
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  2. id:
    2025-120278
    buyer:

    1 results

    1. id:
      c38d12c6c90924a1efb50d16884a2179
      organization_id:
      986399445
      name:
      INNOVASJON NORGE
    heading:
    Procurement Global corporate database platform
    description:
    Innovation Norway needs access to an extensive worldwide company database containing relevant and reliable information. This will make it possible for our employees to identify potential international partners for Norwegian businesses seeking to expand globally, as well as to create guest lists to international business events. We further need to be able to conduct company profiles with more in-depth information on specific companies. This is crucial for evaluating potential collaborations, investment opportunities, etc. The users of this database will be located across the world at our international offices as well as our offices nationally. We estimate that 100 people will need access to the database, and that the total number of exported lists will be around 10000 per year. The number of exported company profiles will be up to 3000 per year. Number of users using the solution at the same time is expected to be below 10 because of the global nature of the usage.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2025-12-15T12:13:04Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2025-12-16
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  3. id:
    2025-114308
    buyer:

    1 results

    1. id:
      c38d12c6c90924a1efb50d16884a2179
      organization_id:
      986399445
      name:
      INNOVASJON NORGE
    heading:
    Procurement Global corporate database platform
    description:
    Innovation Norway needs access to an extensive worldwide company database containing relevant and reliable information. This will make it possible for our employees to identify potential international partners for Norwegian businesses seeking to expand globally, as well as to create guest lists to international business events. We further need to be able to conduct company profiles with more in-depth information on specific companies. This is crucial for evaluating potential collaborations, investment opportunities, etc. The users of this database will be located across the world at our international offices as well as our offices nationally. We estimate that 100 people will need access to the database, and that the total number of exported lists will be around 10000 per year. The number of exported company profiles will be up to 3000 per year. Number of users using the solution at the same time is expected to be below 10 because of the global nature of the usage.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_COMPETITION
    allTypes:

    2 results

    1. COMPETITION
    2. ANNOUNCEMENT_OF_COMPETITION
    status:
    AWARDED
    issueDate:
    2025-10-03T07:52:27Z
    deadline:
    2025-11-03T11:00:00Z
    sentToTed:
    yes
    publicationDate:
    2025-10-06
    placeOfPerformance:
    procurementStrategicLabels:

    No results.

  4. id:
    2018-332056
    buyer:

    1 results

    1. id:
      283970113704ba77c3906323ffbc1448
      organization_id:
      964 964 610
      name:
      Vinje kommune
    heading:
    Reiselivstjenester
    description:
    Konkurransen gjelder avtale om levering av reiselivstjenester. Anskaffelsens verdi anslåes til: NOK 1.750.000,- eks mva pr år. Volumet er et estimat og er ikke bindende for oppdragsgiver.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    allTypes:

    2 results

    1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
    2. RESULT
    status:
    not reported by source
    issueDate:
    2018-09-12T10:00:00Z
    deadline:
    not reported by source
    sentToTed:
    yes
    publicationDate:
    2018-09-12
    placeOfPerformance:

    No results.

    procurementStrategicLabels:

    No results.

  5. id:
    2018-886293
    buyer:

    1 results

    1. id:
      283970113704ba77c3906323ffbc1448
      organization_id:
      964 964 610
      name:
      Vinje kommune
    heading:
    Reiselivstjenester
    description:
    Konkurransen gjelder avtale om levering av reiselivstjenester. Anskaffelsens verdi anslåes til: NOK 1.750.000,- eks mva pr år. Volumet er et estimat og er ikke bindende for oppdragsgiver.
    location_id:

    1 results

    1. anyw
    estimatedValue:
    not reported by source
    type:
    ANNOUNCEMENT_OF_COMPETITION
    allTypes:

    2 results

    1. COMPETITION
    2. ANNOUNCEMENT_OF_COMPETITION
    status:
    EXPIRED
    issueDate:
    2018-06-06T10:00:00Z
    deadline:
    2018-08-13T10:00:00Z
    sentToTed:
    yes
    publicationDate:
    2018-06-06
    placeOfPerformance:

    No results.

    procurementStrategicLabels:

    No results.

limit:
25
offset:
0
returned:
5
has_more_results:
no
Will you use the result in generated code?

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Continue exploring

How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the search_doffin lookup

  1. Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
  2. Check types, units, limits and ID formats in the parameter table.
  3. Follow linked results to canonical pages before combining sources.

Misreading to avoid: An empty list means "no results for this lookup". An error message or unavailable source does not mean the data does not exist.

Source-specific next step

Go to the source page for other operations. Use the JSON template only after the HTML result shows that the parameters and source are correct.