HTML, media access, and the real preview

How to Audit Open Graph

Tag presence is insufficient: values must describe the current page, crawlers must reach the image, and the card must pass inspection after platform caching.

Three-stage Open Graph audit from source HTML to link card — Inspect the source, image request, and final rendering.

Quick audit

Open View Source rather than Elements alone and locate every meta[property^="og:"].
Confirm single non-empty og:title, og:type, og:url, and og:image; compare URL with canonical.
Open the image URL without cookies: status 200, image MIME, HTTPS, adequate dimensions, no redirect or authorization.
Compare title/description/image with visible page content and locale.
Run the target platform's official debugger/inspector, request rescraping, and save the preview.
Repeat for homepage, article, product/service, category, RU/EN, and an empty optional field.

Classification

Observation	Level	Action
Unique correct fields and stable card	No issue	Preserve control URLs
Optional description/site_name/alt absent but card works	Low	Add during the next change
Duplicates, generic data, wrong crop/locale, or redirect	High	Repair the template source
Core fields absent, image 403/404/login, or unrelated content	Critical	Restore a correct public card

Evidence to save

Exact URL, locale, canonical, and server HTML.
All OG properties in output order and their data source.
Image URL, status, MIME, bytes, width/height, and crop.
Platform/debugger name, rescrape date, and screenshot.
Template matrix, exceptions, owner, and retest.

An old card may be platform cache, and different crops can be normal client behavior. Browser DOM may contain tags the crawler never received. Redirects, robots/WAF, user-agent rules, and authentication create false confidence.

Next step

Follow the implementation guide or use the template configuration service with preview testing.