Open Graph Image Validator

Open Graph Image Validator fetches one public web page, extracts Open Graph and Twitter Card social preview image URLs, and verifies each image loads with a valid image content type and reasonable size. It returns structured JSON for social media launch QA, marketing automation, and scheduled preview monitoring.

Use cases

• Validate social share previews before a product launch or campaign.
• Add focused og:image and twitter:image checks to site migration and CMS template QA.
• Monitor high-value landing pages for broken or replaced social preview images.
• Feed social preview validation results into QA dashboards and issue triage.

Input

Field	Type	Required	Description
startUrl	string	Yes	Public HTTP or HTTPS page URL to audit. Credentials and private network targets are rejected.
timeoutSeconds	integer	No	Request timeout for page and image fetches. Default: 10, range: 3 to 30.
maxImages	integer	No	Maximum unique image URLs to verify. Default: 10, range: 1 to 20.
maxHtmlBytes	integer	No	Maximum page bytes to read before parsing. Default: 1048576, range: 100000 to 2097152.

Output

The actor pushes one dataset item per run.

Field	Type	Description
inputUrl	string	Original submitted URL.
normalizedInputUrl	string	URL after adding a default scheme if needed.
finalUrl	string	Final page URL after safe redirects.
ok	boolean	True when at least one image was found, all images loaded with a valid image content type and reasonable size, and no broken images were detected.
checkedAt	string	ISO timestamp for the audit.
score	integer	Readiness score from 0 to 100.
grade	string	Letter grade from A to F.
imageCount	integer	Number of unique social preview images checked.
validImageCount	integer	Number of checked images that loaded with a valid image response.
brokenImageCount	integer	Number of checked images that failed validation.
images	array	Per-image check results: source meta property, URL, ok flag, HTTP status, content type, content length, redirect flag, issues, and error.
declaredWidth	string or null	Value of og:image:width if declared.
declaredHeight	string or null	Value of og:image:height if declared.
declaredAlt	string or null	Value of og:image:alt or twitter:image:alt if declared.
issues	array	Human-readable findings.
recommendations	array	Actionable fixes.
error	string or null	Fetch or validation error when present.

Example input

{
  "startUrl": "https://example.com/blog/launch",
  "timeoutSeconds": 10,
  "maxImages": 10
}

Example output

{
  "inputUrl": "https://example.com/blog/launch",
  "normalizedInputUrl": "https://example.com/blog/launch",
  "finalUrl": "https://example.com/blog/launch",
  "ok": true,
  "checkedAt": "2026-08-02T00:00:00.000Z",
  "score": 95,
  "grade": "A",
  "imageCount": 2,
  "validImageCount": 2,
  "brokenImageCount": 0,
  "images": [
    {
      "source": "og:image",
      "url": "https://example.com/img/og.png",
      "ok": true,
      "status": 200,
      "contentType": "image/png",
      "contentLength": 204800,
      "redirected": false
    },
    {
      "source": "twitter:image",
      "url": "https://example.com/img/twitter.png",
      "ok": true,
      "status": 200,
      "contentType": "image/png",
      "contentLength": 102400,
      "redirected": false
    }
  ],
  "declaredWidth": "1200",
  "declaredHeight": "630",
  "declaredAlt": "Product launch preview",
  "issues": [],
  "recommendations": [],
  "error": null
}

Security

• Fetches only public HTTP and HTTPS URLs.
• Rejects URL credentials.
• Blocks localhost, private IPv4 ranges, link-local IPv4, loopback, private IPv6, and link-local IPv6 targets.
• Resolves hostnames before fetching and blocks DNS results that point to private networks.
• Revalidates redirects before following them.
• Reads a bounded response body to avoid oversized page or image runs.

Pricing

Suggested pay-per-event pricing:

Event	Suggested price
Actor start	$0.005
Page audited	$0.01

Typical one-page run cost: about $0.015 before Apify platform charges. Apify keeps its standard commission and the actor owner receives the remainder.

FAQ

Does this render the page with a browser?

No. It fetches static HTML and parses meta tags. It does not execute JavaScript or render client-side content.

Which image meta tags are checked?

og:image, og:image:url, og:image:secure_url, twitter:image, and twitter:image:src. Duplicate URLs are deduplicated.

What makes an image valid?

The image URL must return HTTP 200 with a recognized image content type (png, jpeg, gif, webp, avif, svg, bmp, or ico) and a content length between 200 bytes and 8 MB. If the Content-Type header is missing or unclear, the actor sniffs the first response bytes for image magic bytes.

Can it crawl a whole site?

No. It audits one submitted page. Schedule multiple runs or pass pages through your own queue when site-wide coverage is needed.