# Security Headers Validator (`stellar_ballet_0bu/security-headers-validator`) Actor Validate security response headers on any public URL: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy. Per-Header pass/warn/fail with documented fix-hints. - **URL**: https://apify.com/stellar\_ballet\_0bu/security-headers-validator.md - **Developed by:** [Nikita S](https://apify.com/stellar_ballet_0bu) (community) - **Categories:** Developer tools, Other - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing Pay per usage This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Security Headers Validator Probe any public URL and emit a per-Header pass/warn/fail row with the observed value, expected value, and a one-line `fixHint`. Covers the six security response headers every webops/devops team should audit: - `Strict-Transport-Security` (HSTS): `max-age >= 15552000`, `includeSubDomains` recommended. - `Content-Security-Policy` (CSP): `default-src` present; `script-src` must not allow `'unsafe-inline'`, `'unsafe-eval'`, or `*`. - `X-Frame-Options`: `DENY` or `SAMEORIGIN`; `ALLOW-FROM` is deprecated. - `X-Content-Type-Options`: must be exactly `nosniff`. - `Referrer-Policy`: `strict-origin-when-cross-origin` or stricter; `unsafe-url` and `no-referrer-when-downgrade` flagged. - `Permissions-Policy`: `camera`, `microphone`, `geolocation` disabled by default. A `SUMMARY` record per run gives per-URL pass/warn/fail counts and a 0–100 score. ### Quick start ```json { "urls": ["https://apify.com", "https://example.com"] } ```` Output: one row per `(url, header)` pair with `status`, `observed`, `expected`, `fixHint`. SUMMARY: per-URL `score` and counts. ### Why this Actor - **Per-Header, not score-aggregated.** Every check returns its own row so you can grep/filter the dataset on a single header (e.g. find every URL whose `content-security-policy` allows `'unsafe-inline'`). - **Documented fix-hints.** Every `fail`/`warn` row includes a one-line `fixHint` string you can paste into a remediation ticket. - **Pairs with the `url-safety-prober` Actor (RDAP + TLS) and the `http-status-batch` Actor (status + redirect chain).** Feed the same URL list into all three for a complete first-pass security audit. - **Pure Node, no headless Chrome, no auth, no scraping beyond a single public GET.** Works on any HTTP/HTTPS endpoint. ### Limits - This Actor only validates **response headers**. It does not probe for CORS misconfigurations, cookie flags, or TLS issues (use `url-safety-prober` for TLS). - The check for CSP focuses on `default-src` + `script-src` no-`unsafe-inline`/no-`*`. It does not lint every CSP directive (e.g. `frame-ancestors`, `base-uri`, `form-action`). - The `permissions-policy` check verifies the three most-leaked sensitive features (`camera`, `microphone`, `geolocation`). Other features (payment, USB, etc.) are not yet covered. ### Pricing `payPerEvent: 0` (free) by default. To charge per check, add `Actor.charge({ eventName: 'header_check', count })` and configure Pay Per Event. ### Run locally ```bash echo '{"urls":["https://apify.com"]}' > input.json npm start -- --input-file input.json ``` ### Tests ```bash npm test ``` 20 unit tests cover all six header checks, the score formula, and case-insensitive header matching. ### Support Open an issue on the Apify Actor page. Custom CSP/header audits (e.g. PCI-DSS profiles) are available on request. # Actor input Schema ## `urls` (type: `array`): Array of public HTTP/HTTPS URLs. ## `timeoutSec` (type: `integer`): Per-URL request timeout in seconds. ## `userAgent` (type: `string`): User-Agent header to send. ## Actor input object example ```json { "urls": [], "timeoutSec": 15, "userAgent": "security-headers-validator/0.1 (Apify)" } ``` # Actor output Schema ## `rows` (type: `string`): Per-(URL, header) check rows with pass/warn/fail status, observed value, expected, fixHint. ## `summary` (type: `string`): Run summary with per-URL pass/warn/fail/error counts and overall score. # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = {}; // Run the Actor and wait for it to finish const run = await client.actor("stellar_ballet_0bu/security-headers-validator").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = {} # Run the Actor and wait for it to finish run = client.actor("stellar_ballet_0bu/security-headers-validator").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{}' | apify call stellar_ballet_0bu/security-headers-validator --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=stellar_ballet_0bu/security-headers-validator", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Security Headers Validator", "description": "Validate security response headers on any public URL: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy. Per-Header pass/warn/fail with documented fix-hints.", "version": "0.1", "x-build-id": "C955Ekz6t0dRaalIm" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/stellar_ballet_0bu~security-headers-validator/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-stellar_ballet_0bu-security-headers-validator", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/stellar_ballet_0bu~security-headers-validator/runs": { "post": { "operationId": "runs-sync-stellar_ballet_0bu-security-headers-validator", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/stellar_ballet_0bu~security-headers-validator/run-sync": { "post": { "operationId": "run-sync-stellar_ballet_0bu-security-headers-validator", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "urls" ], "properties": { "urls": { "title": "URLs to probe", "type": "array", "description": "Array of public HTTP/HTTPS URLs.", "default": [] }, "timeoutSec": { "title": "Timeout per URL (sec)", "type": "integer", "description": "Per-URL request timeout in seconds.", "default": 15 }, "userAgent": { "title": "User-Agent", "type": "string", "description": "User-Agent header to send.", "default": "security-headers-validator/0.1 (Apify)" } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```