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REST API · Technical SEO in one call

PageSignal - SEO & AI Visibility Audit, JSON-LD Validator

PageSignal turns any public URL into a JSON SEO report: title and meta description, Open Graph, canonical, indexability, robots.txt, sitemap, JSON-LD validation, visibility for AI assistants and a score from 0 to 100 that explains every point. No need to build your own crawler.

Try PageSignal free on RapidAPI · Live demo

All your technical SEO in one normalized JSON

Ideal for SEO monitors, agency tools, pre-publish quality checks and AI agents that need to understand a page.

Title and meta description

Checks lengths and flags missing or duplicate tags.

Open Graph and Twitter Cards

Extracts every social tag and shows which recommended ones are missing.

Robots and canonical

Combines meta robots, googlebot and X-Robots-Tag into a single verdict and checks whether the canonical points to itself or to another URL.

JSON-LD validation

Parses every block, validates @context, @type and @graph, and lists the schema.org types it finds.

Explainable SEO score from 0 to 100

Every rule shows its points, its severity and the reason. No black boxes.

Full network report

Final URL, redirect chain, status code and response time, plus robots.txt and sitemap.

PageSignal doesn't execute JavaScript: on single-page applications the result may be incomplete, and the API flags it in diagnostics.likely_client_rendered.

API endpoints

  • POST /v1/audit: full audit with a JSON body.
  • GET /v1/audit?url=…: the same audit via query string.
  • GET /v1/metadata?url=…: fast mode with metadata, Open Graph, canonical and JSON-LD.
  • GET /health: unauthenticated health check.

Fair billing: if the failure isn't your fault, the API returns a 5xx error and it doesn't count against your quota. Includes SSRF protection and stores no data (stateless).

PageSignal plans on RapidAPI

  • Basic: $0 per month, 50 audits.
  • Pro: $9.99 per month, 1,500 audits.
  • Ultra: $29.99 per month, 7,500 audits.
  • Mega: $79.99 per month, 30,000 audits.

Prices in US dollars (USD). Subscriptions and billing are handled on RapidAPI, with no commitment.