Open Graph Checker

Open Graph Checker analyzes the Open Graph metadata of a URL to verify correctness and completeness for social previews. It serves SEO professionals, content managers, and developers who need reliable OG data before publishing. It focuses on core og properties (og:title, og:description, og:image, og:url, og:type) and flags missing or mismatched values. By emphasizing metadata quality over rendering, it helps prevent broken previews, branding misalignments, and ambiguous summaries that hurt click-through.
Core Logic & Features: The tool fetches the target URL, parses HTML, and extracts OG meta tags. Required features include validation of og:title, og:description, og:image, og:url, og:type, and basic URL checks. Optional features include og:locale, og:site_name, and multiple image support. Outputs include a structured report with status per tag, suggested fixes, and an overall quality score.
Inputs & Outputs: Input is a single URL string. Outputs are a per-tag report, a summary score, and an exportable artifact (JSON or PDF). Outputs clearly indicate validity, formatting, and accessibility status of og:image URLs.
Algorithms & Calculations: It fetches HTML via HTTP GET, parses meta[property] and meta[name] entries, normalizes values, validates URL syntax and image URLs, and computes a simple compliance score based on presence and correctness of required tags.
Error & Edge Cases: Handles HTTP errors, timeouts, redirects, and pages that block bots. If OG data is absent or dynamically generated, the tool reports gaps and notes potential limitations. It flags ambiguous encodings and long URLs for corrective action.
Industry/Region & Localization: Aligns with Open Graph 1.0/1.1 standards and UTF-8 encoding. No region-specific behavior; locale-related fields are treated as optional enhancements.
Assumptions & Exclusions: Assumes public, accessible pages without authentication. Does not render pages or evaluate platform previews. Not a full site crawl; analyses are scoped to the tested URL. Use cases and differentiators: Quick OG audits for new pages, site-wide governance, and campaign readiness. Differentiators: a standards-aligned scoring model, explicit guidance on which tag to fix, and easy export for QA pipelines and stakeholder reporting.