1
Add the core tags
og:title, og:description, og:image and og:url cover most platforms. Add twitter:card for X.
SEO and discoverability
Open Graph checker
See how a page looks when shared, and what tags it is missing.
Free tool vs Janitor
This free tool reads the single page you enter. Janitor checks titles, descriptions and Open Graph tags across every page, so missing or duplicated tags are caught site-wide.
See the full site-wide check in Janitor → Sample result 
Your result
What this checks
How a link looks when shared
Open Graph and Twitter card tags tell social platforms what title, description and image to show when a link is shared. Without them, a shared link can look broken or dull.
This tool fetches a page, reads its title, description, Open Graph and Twitter tags and shows a preview of how the link would appear.
Why it matters
A dull preview costs clicks
A link with no image and a stray title gets fewer clicks. For a client whose marketing leans on social, that is lost reach from a five-minute fix.
Tags drift: a redesign or CMS change can drop them without anyone noticing until a post looks wrong.
How to fix it
Add the tags platforms read
2
Use a real image
A 1200 by 630 image renders well across platforms. Avoid tiny logos that get cropped.
3
Keep titles and descriptions tidy
Match the page intent and keep within sensible lengths so nothing is truncated.
One of around two dozen checks
Open Graph checker is one check
Janitor watches social sharing metadata automatically across every client site and puts it in a branded report you can send.
Keep reading
Related tools and guides
FAQ
Open Graph checker FAQ
What tags does the checker read?
The page title and meta description, the Open Graph tags (title, description, image, url, type, site name) and the Twitter card tags.
Why does my image not show?
The og:image tag may be missing, point at a broken URL or use a relative path. Use a full https URL to a real image.
Can I monitor this across client sites?
Yes. Janitor checks social sharing metadata on every site and flags pages missing the recommended tags.
Get started
Check it once, or watch it for every client
Janitor runs around two dozen checks on every site you manage and turns them into a branded report.
30-day free trial. No credit card required.