{ "openapi": "3.1.0", "info": { "title": "4F API", "version": "1.0.0", "summary": "Broken link checker and website monitoring API", "description": "Create projects, start website scans and retrieve broken links, missing assets, redirect chains, SSL errors and other issues. Available on all plans, including Free.\n\nAuthentication: create an API key in the dashboard (Account > API keys) and send it as `Authorization: Bearer 4f_...`. Keys can be limited to specific projects.\n\nRate limit: 50 requests per minute per user. Scans consume pages from the monthly quota.\n\nDocumentation: https://www.4f.at/docs - CLI: https://www.4f.at/docs/cli", "contact": { "name": "4F", "url": "https://www.4f.at" }, "termsOfService": "https://www.4f.at/legal/terms" }, "externalDocs": { "description": "API documentation", "url": "https://www.4f.at/docs" }, "servers": [ { "url": "https://www.4f.at" } ], "security": [ { "bearerAuth": [] } ], "tags": [ { "name": "Account", "description": "Plan and page quota of the key's user" }, { "name": "Projects", "description": "Websites to scan, with their crawl settings and schedule" }, { "name": "Scans", "description": "Start, poll, cancel and delete scans" }, { "name": "Results", "description": "Checked URLs and the issues found, as JSON or CSV" } ], "paths": { "/api/v1/account": { "get": { "operationId": "getAccount", "tags": [ "Account" ], "summary": "Plan and page quota", "description": "Not available for project-scoped API keys.", "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Account" } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/projects": { "get": { "operationId": "listProjects", "tags": [ "Projects" ], "summary": "List projects", "description": "All personal and team projects the key has access to.", "parameters": [ { "name": "type", "in": "query", "required": false, "schema": { "type": "string", "enum": [ "personal", "team" ] } } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "array", "items": { "$ref": "#/components/schemas/ProjectListItem" } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } }, "post": { "operationId": "createProject", "tags": [ "Projects" ], "summary": "Create a project", "description": "Counts towards the plan's project limit (Free 2, Starter 10, Agency 50). Not available for project-scoped keys.", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/ProjectCreate" } } } }, "responses": { "201": { "description": "Project created", "content": { "application/json": { "schema": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "name": { "type": "string" }, "rootUrl": { "type": "string", "format": "uri" }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ] }, "crawlConfig": { "$ref": "#/components/schemas/CrawlConfig" }, "createdAt": { "type": "string", "format": "date-time" } } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "422": { "description": "Invalid input", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/org/projects": { "get": { "operationId": "listTeamProjects", "tags": [ "Projects" ], "summary": "List team projects", "description": "Team projects of all organisations the user owns or belongs to.", "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "array", "items": { "$ref": "#/components/schemas/TeamProject" } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/projects/{id}": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Project ID", "schema": { "type": "string", "format": "uuid" } } ], "get": { "operationId": "getProject", "tags": [ "Projects" ], "summary": "Get a project", "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Project" } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } }, "patch": { "operationId": "updateProject", "tags": [ "Projects" ], "summary": "Update a project", "description": "Only the project owner. crawlConfig fields are merged into the existing settings.", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/ProjectUpdate" } } } }, "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Project" } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "422": { "description": "Invalid input", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } }, "delete": { "operationId": "deleteProject", "tags": [ "Projects" ], "summary": "Delete a project", "description": "Permanently deletes the project and all its scans. Only the project owner.", "responses": { "204": { "description": "Deleted" }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/projects/{id}/scans": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Project ID", "schema": { "type": "string", "format": "uuid" } } ], "get": { "operationId": "listProjectScans", "tags": [ "Scans" ], "summary": "List scans of a project", "description": "Newest first.", "parameters": [ { "name": "page", "in": "query", "schema": { "type": "integer", "minimum": 1, "default": 1 } }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 100, "default": 20 } } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "object", "properties": { "data": { "type": "array", "items": { "$ref": "#/components/schemas/ScanSummary" } }, "page": { "type": "integer" }, "limit": { "type": "integer" } } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } }, "post": { "operationId": "startScan", "tags": [ "Scans" ], "summary": "Start a scan", "description": "Queues a scan and returns immediately; the crawl runs asynchronously. Poll GET /api/v1/scans/{id} every 5-10 seconds until the status is completed, failed or cancelled. Pages crawled count towards the monthly quota.", "requestBody": { "required": false, "content": { "application/json": { "schema": { "type": "object", "properties": { "notify": { "type": "boolean", "description": "Email a report to the project owner when the scan completes" } } } } } }, "responses": { "201": { "description": "Scan queued", "content": { "application/json": { "schema": { "type": "object", "properties": { "scanId": { "type": "string", "format": "uuid" } } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/scans/{id}": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Scan ID", "schema": { "type": "string", "format": "uuid" } } ], "get": { "operationId": "getScan", "tags": [ "Scans" ], "summary": "Get scan status and summary", "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Scan" } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } }, "delete": { "operationId": "deleteScan", "tags": [ "Scans" ], "summary": "Delete a scan", "responses": { "204": { "description": "Deleted" }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/scans/{id}/cancel": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Scan ID", "schema": { "type": "string", "format": "uuid" } } ], "post": { "operationId": "cancelScan", "tags": [ "Scans" ], "summary": "Cancel a running scan", "description": "No-op for scans that already finished; returns their status.", "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "object", "properties": { "status": { "type": "string", "enum": [ "cancelled", "completed", "failed" ] } } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/scans/{id}/results": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Scan ID", "schema": { "type": "string", "format": "uuid" } } ], "get": { "operationId": "getScanResults", "tags": [ "Results" ], "summary": "Checked URLs with their issues", "description": "Sorted by URL. By default only URLs with at least one issue are returned.", "parameters": [ { "name": "issues_only", "in": "query", "schema": { "type": "boolean", "default": true }, "description": "Set to false to include URLs without issues" }, { "name": "page", "in": "query", "schema": { "type": "integer", "minimum": 1, "default": 1 } }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 0, "maximum": 200, "default": 50 }, "description": "Page size (max 200). 0 returns all records without pagination (no page/limit in the response)." } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "object", "properties": { "data": { "type": "array", "items": { "$ref": "#/components/schemas/UrlRecord" } }, "page": { "type": "integer" }, "limit": { "type": "integer" } } } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/api/v1/scans/{id}/export": { "parameters": [ { "name": "id", "in": "path", "required": true, "description": "Scan ID", "schema": { "type": "string", "format": "uuid" } } ], "get": { "operationId": "exportScanCsv", "tags": [ "Results" ], "summary": "Export results as CSV", "description": "Columns: URL, Type, Status Code, Response Time (ms), Issue Types, Severity, Found On, Link Text.", "parameters": [ { "name": "broken", "in": "query", "schema": { "type": "string", "enum": [ "1" ] }, "description": "1 = only URLs with issues" } ], "responses": { "200": { "description": "CSV file", "content": { "text/csv": { "schema": { "type": "string" } } } }, "401": { "description": "Missing or invalid API key", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "403": { "description": "The key or user has no access to this resource (e.g. a project-scoped key used outside its projects)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "404": { "description": "Resource not found", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } }, "429": { "description": "Rate limit exceeded (50 requests per minute per user), monthly page quota exhausted, or the domain is scanned too frequently (more than 10 scan starts per 5 minutes)", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } } }, "components": { "securitySchemes": { "bearerAuth": { "type": "http", "scheme": "bearer", "description": "API key starting with 4f_" } }, "schemas": { "Error": { "type": "object", "required": [ "error" ], "properties": { "error": { "type": "string", "example": "Unauthorized" } } }, "Account": { "type": "object", "properties": { "plan": { "type": "string", "enum": [ "free", "starter", "agency" ], "description": "Effective plan (includes active trials)" }, "quotaUsed": { "type": "integer", "description": "Pages used in the current billing period" }, "quotaMonthly": { "type": "integer", "description": "Pages included per month" }, "bonusPages": { "type": "integer", "description": "Extra pages purchased on top of the monthly quota" }, "quotaRemaining": { "type": "integer", "description": "Remaining monthly pages plus extra pages" }, "billingPeriodStart": { "type": [ "string", "null" ], "format": "date-time" } } }, "CrawlConfig": { "type": "object", "description": "Per-project crawl settings. Updates are merged into the existing settings.", "properties": { "maxDepth": { "type": "integer", "minimum": 1, "maximum": 20, "description": "Maximum link depth to follow" }, "ignorePatterns": { "type": "array", "items": { "type": "string" }, "description": "URL substrings to skip" }, "respectRobots": { "type": "boolean", "description": "Respect robots.txt (default true)" }, "emailAlerts": { "type": "string", "enum": [ "always", "new_issues", "disabled" ] }, "sitemapUrl": { "type": "string", "format": "uri", "description": "Custom sitemap URL (Starter and Agency)" }, "slowThresholdMs": { "type": "integer", "minimum": 500, "maximum": 30000, "description": "Responses slower than this are reported as slow (clamped to 500-30000)" }, "rateLimit": { "type": "integer", "enum": [ 1, 2, 3, 5, 10, 15 ], "description": "Crawler requests per second. Plan maximum: Free 5, Starter 10, Agency 15. Default 5." }, "scheduledHour": { "type": "integer", "minimum": 0, "maximum": 23, "description": "Hour of day for scheduled scans" }, "scheduledWeekday": { "type": "integer", "minimum": 0, "maximum": 6, "description": "Weekday for weekly scans (0 = Sunday)" }, "scheduledTimezone": { "type": "string", "description": "IANA timezone for the schedule (invalid values fall back to UTC)", "example": "Europe/Vienna" }, "maxUrls": { "type": "integer", "readOnly": true, "description": "Per-scan page limit, set by the server from your plan" } } }, "ProjectListItem": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "name": { "type": "string" }, "rootUrl": { "type": "string", "format": "uri" }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ] }, "type": { "type": "string", "enum": [ "personal", "team" ] }, "createdAt": { "type": "string", "format": "date-time" } } }, "TeamProject": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "name": { "type": "string" }, "rootUrl": { "type": "string", "format": "uri" }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ] }, "createdAt": { "type": "string", "format": "date-time" }, "orgName": { "type": [ "string", "null" ] } } }, "Project": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "name": { "type": "string" }, "rootUrl": { "type": "string", "format": "uri" }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ] }, "crawlConfig": { "$ref": "#/components/schemas/CrawlConfig" }, "orgId": { "type": [ "string", "null" ], "format": "uuid" }, "createdAt": { "type": "string", "format": "date-time" }, "serverInfo": { "type": [ "object", "null" ], "description": "Hosting, TLS and security header information collected for the root URL (GET only)", "additionalProperties": true } } }, "ProjectCreate": { "type": "object", "required": [ "name", "rootUrl" ], "properties": { "name": { "type": "string", "example": "My website" }, "rootUrl": { "type": "string", "description": "Start URL; https:// is added when no scheme is given", "example": "https://example.com" }, "isPersonal": { "type": "boolean", "default": true }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ], "default": "manual", "description": "weekly requires Starter, daily requires Agency" }, "crawlConfig": { "$ref": "#/components/schemas/CrawlConfig" } } }, "ProjectUpdate": { "type": "object", "properties": { "name": { "type": "string" }, "scanFrequency": { "type": "string", "enum": [ "manual", "weekly", "daily" ], "description": "weekly requires Starter, daily requires Agency" }, "crawlConfig": { "$ref": "#/components/schemas/CrawlConfig" } } }, "ScanSummary": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "status": { "type": "string", "enum": [ "pending", "running", "completed", "failed", "cancelled" ] }, "triggeredBy": { "type": "string", "description": "What started the scan, e.g. user, schedule, api, api_notify" }, "totalUrlsCrawled": { "type": [ "integer", "null" ] }, "totalPagesCrawled": { "type": [ "integer", "null" ] }, "totalIssuesFound": { "type": [ "integer", "null" ] }, "createdAt": { "type": "string", "format": "date-time" }, "startedAt": { "type": [ "string", "null" ], "format": "date-time" }, "finishedAt": { "type": [ "string", "null" ], "format": "date-time" } } }, "Scan": { "allOf": [ { "$ref": "#/components/schemas/ScanSummary" }, { "type": "object", "properties": { "projectId": { "type": "string", "format": "uuid" }, "rootUrl": { "type": [ "string", "null" ], "format": "uri", "description": "Effective start URL after redirects" }, "errorMessage": { "type": [ "string", "null" ], "description": "Set for failed scans, or \"timeout\" when the plan's maximum scan duration was reached" } } } ], "description": "While a scan is pending or running, totalUrlsCrawled is the live number of URLs checked so far." }, "Issue": { "type": "object", "properties": { "issueType": { "type": "string", "enum": [ "broken_link", "server_error", "missing_asset", "redirect_chain", "slow_response", "ssl_error", "broken_anchor", "mixed_content", "blocked_by_server", "missing_title", "title_length", "missing_meta_description", "meta_description_length", "missing_h1", "multiple_h1", "missing_viewport", "missing_lang", "canonical_mismatch", "links_no_text", "images_missing_alt", "skipped_heading_levels", "relative_favicon_path" ] }, "severity": { "type": "string", "enum": [ "error", "warning", "info" ] }, "detail": { "type": [ "object", "null" ], "additionalProperties": true, "description": "Type-specific details, e.g. {\"status_code\": 404} or {\"anchor\": \"pricing\"}", "example": { "status_code": 404 } } } }, "UrlRecord": { "type": "object", "properties": { "id": { "type": "string", "format": "uuid" }, "url": { "type": "string" }, "urlType": { "type": "string", "enum": [ "internal", "external", "asset" ] }, "statusCode": { "type": [ "integer", "null" ] }, "responseTimeMs": { "type": [ "integer", "null" ] }, "finalUrl": { "type": [ "string", "null" ], "description": "URL after following redirects" }, "redirectCount": { "type": [ "integer", "null" ] }, "firstStatusCode": { "type": [ "integer", "null" ], "description": "Status of the first response when redirected (e.g. 301)" }, "foundOnUrl": { "type": [ "string", "null" ], "description": "Page that contains the link" }, "linkText": { "type": [ "string", "null" ] }, "errorType": { "type": [ "string", "null" ], "description": "Network-level error, e.g. timeout, dns_error, ssl_error, connection_refused" }, "contentType": { "type": [ "string", "null" ] }, "issues": { "type": "array", "items": { "$ref": "#/components/schemas/Issue" } } } } } } }