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Data Collection

data4free.com

Enables searching and retrieving crawled domain profiles, page content snippets, discovered URLs, and data provenance from a web crawl dataset.

1 endpoint42 known toolsFirst detected October 14, 2026Last detected October 14, 2026

ENDPOINT 1

https://mcp.data4free.com/mcp

No auth detected

MCP server metadata

Name
tellmeallaboutthewebsite
Version
1.30.0
Capabilities
experimentalpromptsresourcestools
Server instructions

Tell Me All About The Website MCP — lookup tools for crawled website data. Use when the user asks about a domain/company website we may have crawled: tech stack, hosting, URLs, page content snippets, linked company profile, connections between two sites, people/companies, or page-level keyword search. Hosts are exact hostnames (example.com and www.example.com are different; no scheme). Data comes only from our crawl database — not live web fetch. Workflow: 1. tell_me_about_website(url_or_domain) for a one-shot dossier, OR 2. search_domains → get_domain → get_domain_urls / get_domain_pages_content 3. Two hosts ("does A connect to B?"): compare_websites — shared representative, address, register ids, phone/email, and detected relationship edges 4. Similar sites ("welche Website ist ähnlich zu X?"): find_similar_websites — first a short briefing (location, industry, tech), then ranked neighbours with reasons ("ähnlich, weil Ort gleich") 5. Catalog ("welche Sites nutzen WordPress / eine WAF / IONOS?"): list_frameworks or list_waf_providers, then find_domains. search_domains is exact-host only — never invent an empty catalog. 6. Weak sites ("schlechte Webseiten"): find_bad_sites (score, speed, stale, imprint, tech, https, headers, onpage). Do not scan without at least one dimension. 7. Person or keyword: search_people(connections=true) / get_person_connections 8. Company briefing ("was weißt du über Firma X?"): ONE search_companies call with q=name (and cities if the user named a place), include=domains,profile,contacts and connections=true. That returns profile_text, profile_summary, contact_links, domains and relationship edges. Do not follow up with get_company / get_company_connections unless you need a known company_id or more than the first 25 edges. Directory filters: industries, nace_codes, nace_sections, cities, country_codes, statuses + operator and/or (intra-field stays OR). Facets: list_industries / list_nace_codes / list_nace_sections. Deleted/duplicate rows stay hidden; get_company follows merged_into. 9. Domain graph: get_domain / search_domains with connections=true (includes outbound website links, not only agency/shared-person edges) 10. Unknown host: ingest_domain — also auto-queued by tell_me_about_website 11. Timeline (which field, when, from which URL): get_history (kind=company|person|domain) or get_company_history / get_person_history / get_domain_history 11b. News / what changed: list_news_types, then get_news (one firm or host) or find_news (catalog: new managing director, hiring started). Semantic diffs only — not provenance, not live LinkedIn. 12. Transport is stateless Streamable HTTP: no server-side session store. Stale mcp-session-id headers are ignored. If a client still reports "Session not found", retry get_domain or search_domains once. Do not invent facet counts. 13. Topic terms in page text (not Google ranks): get_domain_keywords, find_domains_by_keyword, compare_keyword_overlap. Say "kommt im Seitentext vor" — never "rankt für" or "Google Impressions". 14. Search cookbook (/highlights): list_highlights — visitor questions plus the MCP calls that answer them. Call when unsure which tool fits, or to learn more query shapes. 15. Signal catalog: list_signals first. Then get_domain for TLS/CMP/JSON-LD /screenshots (has_snapshot + date only — never object keys). find_domains filters technology, cmp, json_ld_type, tls_issuer, og_type plus has_* (json_ld, open_graph, canonical, hreflang, http_signal, hsts, csp, snapshot, hosting, spf, dmarc, performance, waf, cmp, hiring). search_companies: technologies, json_ld_types, tls_issuers, has_cmp, has_json_ld, has_open_graph, has_canonical, has_snapshot, has_http_signal, has_hsts, has_hosting, has_hiring. 16. After a complete answer, offer feedback. Show Like and Unlike (or Daumen hoch / Daumen runter). Ask once: "War das hilfreich?" When the user likes, unlikes, or says the answer was good or bad, call rate_answer with the question, host, and tools you used. Optional reason on unlike. Do not invent a vote.

Known tools 42

search_domains

Search crawled domains by exact hostname (scheme/path stripped; www.

Inferred read-only
get_domain

Fetch the full crawled domain profile by domain_id: tech signals, hosting, URL stats, and linked company when available.

Inferred read-only
get_domain_pages_content

Search LLM-friendly page content snippets for a crawled domain.

Inferred read-only
get_domain_urls

List crawled URLs discovered for a domain_id (paths, types, crawl state).

Inferred read-only
get_domain_sources

Provenance trail (data_source_log) for a domain — which jobs/pages produced fields.

Inferred read-only
get_domain_relationships

Detected links between this domain and others: outbound website links (outbound / links_to), inbound referrers, which agency built the site (built_by), which sites this domain built (portfolio), and domains sharing a managing director (shared_people) or phone/email (shared_contacts).

Potential side effects
get_domain_dashboard

Everything known about a domain in one response: registry data of the company behind it (legal form, founding year, commercial register number and court, VAT id, address, authorised representatives), other domains of the same company, the people on record with control roles first, the detected links to other domains, the crawl progress and any detected technologies.

Inferred read-only
get_domain_history

Timeline for a domain: last_crawled_at / created_at, field changes (old -> new with timestamp), recent fetches with HTTP status and duration, plus imprint URL.

Inferred read-only
get_history

Which field was written when and from which page.

Inferred read-only
get_company_history

Which company field was written when and from which URL/job (data_source_log, flattened).

Inferred read-only
get_person_history

Which person field was written when and from which URL/job.

Inferred read-only
get_domain_crawl_status

Cheap crawl counters for a domain (urls done / queued / failed).

Inferred read-only
compare_websites

Does site A connect to site B?

Inferred read-only
find_similar_websites

Which websites are similar to this one?

Inferred read-only
find_domains

Which crawled sites use this CMS, WAF, hoster, CDN or other signal?

Inferred read-only
list_highlights

Cookbook of visitor search suggestions and the MCP calls that answer them.

Inferred read-only
list_news_types

Catalog of semantic news types (Geschäftsführer geändert, hiring, CMS change).

Inferred read-only
get_news

Last semantic changes for one company or domain: new managing director, address, hiring started, CMS change.

Inferred read-only
find_news

Catalog search: which firm has a new Geschäftsführer, who just started hiring, who changed CMS?

Inferred read-only
list_signals

Catalog of crawl-DB website signals.

Inferred read-only
find_bad_sites

Weak / 'bad' sites after the caller said what counts: score, speed (PageSpeed), stale, imprint, tech, https, headers, onpage.

Inferred read-only
list_frameworks

Facet: distinct website frameworks + counts from crawl DB.

Inferred read-only
list_waf_providers

Facet: distinct WAF providers + counts.

Inferred read-only
list_domain_statuses

Facet: distinct domain lifecycle statuses + counts.

Inferred read-only
list_domainendings

Facet: distinct TLDs / domain endings + counts.

Inferred read-only
search_companies

Paginated company directory and the one-shot company briefing.

Inferred read-only
get_company

Full company by numeric company_id: legal row, domains, profile (profile_text + profile_summary) and contact_links.

Inferred read-only
get_company_connections

Domains, authorised representatives, people and detected relationship edges for one company, including outbound website links.

Inferred read-only
get_company_people

People rows affiliated with a company_id (filterable, paginated).

Inferred read-only
list_industries

Facet: distinct industries + counts.

Inferred read-only
list_nace_codes

All distinct NACE codes with DE/EN titles + counts (~240 entries).

Inferred read-only
list_nace_sections

All 21 NACE sections A–U with DE/EN titles + counts.

Inferred read-only
search_people

Search the person directory by name fragment.

Inferred read-only
get_person_connections

All companies and domains tied to a person name: person rows, company.represented_by, shared_person clusters, and outbound website links from those domains.

Inferred read-only
search_pages

Keyword or semantic search over crawled page text.

Inferred read-only
get_url

URL profile: discovery metadata, last fetch status, page excerpt.

Inferred read-only
get_domain_keywords

Lexicon terms that occur in this host's crawled page text, with a demand proxy.

Inferred read-only
find_domains_by_keyword

Which crawled sites contain this lexicon term in page text?

Inferred read-only
compare_keyword_overlap

Shared vs unique lexicon terms in the crawled text of two hosts.

Inferred read-only
ingest_domain

Queue a hostname for the index pipeline (RabbitMQ → Airflow).

Inferred read-only
rate_answer

Store whether the last index answer helped.

Inferred read-only
tell_me_about_website

One-shot lookup: keep the typed hostname (www stays), search exact domain, return profile details, detected relationships (outbound website links, agency, shared people, inbound referrers) plus page snippets if crawled.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.tellmeallaboutthewebsite]
url = "https://mcp.data4free.com/mcp"
enabled = true
Claude Code

.mcp.json

{
  "mcpServers": {
    "tellmeallaboutthewebsite": {
      "type": "http",
      "url": "https://mcp.data4free.com/mcp"
    }
  }
}
Claude Desktop

Settings → Connectors → Add custom connector

Name: tellmeallaboutthewebsite
Remote MCP URL: https://mcp.data4free.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "tellmeallaboutthewebsite": {
      "url": "https://mcp.data4free.com/mcp"
    }
  }
}
Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code
{
  "servers": {
    "tellmeallaboutthewebsite": {
      "type": "http",
      "url": "https://mcp.data4free.com/mcp"
    }
  }
}
Generic MCP

Client-specific MCP configuration

{
  "name": "tellmeallaboutthewebsite",
  "transport": "streamable-http",
  "url": "https://mcp.data4free.com/mcp"
}
MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.