datasets_techstack_facets
Facet the website tech-stack dataset. Returns distribution counts over the website tech-stack index (dataset id enum value techstack), honoring the same filters as search — the technology / category market-share view. Facet enum: technology, category, cms, ecommerce, cdn, web_server, server_langu...
This record as markdown: /tools/crawlora-mcp/datasets-techstack-facets.md
What datasets_techstack_facets does on Crawlora
AI agents call datasets_techstack_facets to retrieve information from Crawlora without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
q | string | — | Substring match on the site domain, max 256 characters |
cdn | string | — | Exact CDN / hosting filter, e.g. Cloudflare, Fastly, Vercel |
cms | string | — | Exact CMS filter, e.g. WordPress, Shopify, Webflow |
not | array | — | Repeatable exact technology name the site must NOT use (excludes) |
tld | string | — | Exact top-level-domain filter, e.g. com, org, io |
facet | string | Yes | Facet enum: technology, category, cms, ecommerce, cdn, web_server, server_language, analytics, tld, render_tier, seed_source |
any_of | array | — | Repeatable exact technology name; the site must use at least one (OR) |
run_id | string | — | Scan run id; defaults to the latest run |
category | string | — | Exact category filter, e.g. Ecommerce, CMS, Analytics |
ecommerce | string | — | Exact e-commerce platform filter, e.g. Shopify, WooCommerce, Magento |
reachable | boolean | — | true keeps only sites whose homepage was fetched |
technology | array | — | Repeatable exact technology name the site MUST use (AND) |
Parameters from the server's own tool schema.
Why datasets_techstack_facets is rated Low
Even though datasets_techstack_facets only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHigh parameter count (18 properties)
Attacks that exploit this kind of access
The rule that runs datasets_techstack_facets safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crawlora, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For datasets_techstack_facets, this is the rule to start with:
datasets_techstack_facets is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crawlora, apply this rule, and every datasets_techstack_facets call is checked against it from then on.
Questions about datasets_techstack_facets
Facet the website tech-stack dataset. Returns distribution counts over the website tech-stack index (dataset id enum value techstack), honoring the same filters as search — the technology / category market-share view. Facet enum: technology, category, cms, ecommerce, cdn, web_server, server_language, analytics, tld, render_tier, seed_source. It is categorised as a Read tool in the Crawlora MCP Server, which means it retrieves data without modifying state.
datasets_techstack_facets accepts 12 parameters: q, cdn, cms, not, tld, facet, any_of, run_id, category, ecommerce, reachable, technology. Required: facet. The full parameter table on this page comes from the server's own tool schema.
Register the Crawlora MCP server in PolicyLayer and add a rule for datasets_techstack_facets: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Crawlora. Nothing to install.
datasets_techstack_facets is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the datasets_techstack_facets rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for datasets_techstack_facets. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
datasets_techstack_facets is provided by the Crawlora MCP server (crawlora-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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