Question 1

What are Open Graph meta tags?

Accepted Answer

Open Graph is a protocol originally created by Facebook so websites can tell social platforms what title, description, and image to show when a link is shared. Most networks today—including LinkedIn, X, WhatsApp, Slack, and Discord—read these tags to build link previews.

Question 2

Can meta tags live inside the HTML body?

Accepted Answer

No. Meta tags belong in the document head. If you put them in the body, browsers and crawlers may ignore them, and your previews can break silently.

Question 3

What size should an Open Graph image be?

Accepted Answer

A safe default is 1200 × 630 pixels (roughly 1.91:1). Keep the file under 5 MB and use JPG or PNG for the widest compatibility across platforms.

Question 4

What makes an OG image worth clicking?

Accepted Answer

The image does most of the selling. Use a short headline on the image (under ~45 characters), a clear visual focal point, and strong contrast so it stays readable in small mobile previews.

Question 5

How do I refresh a cached or outdated preview?

Accepted Answer

Platforms cache previews aggressively. After you fix tags, use Facebook's Sharing Debugger or LinkedIn's Post Inspector to trigger a new scrape. On X, a cache-busting query parameter (for example ?v=2) often helps when sharing.

Question 6

Can OG images be generated dynamically for many pages?

Accepted Answer

Yes. For large catalogs or programmatic sites, teams usually render images on the server from templates—pulling in titles, prices, or product photos automatically instead of designing every page by hand.

Question 7

Do I still need Twitter Card tags?

Accepted Answer

Platforms may fall back to Open Graph tags, but X in particular behaves more predictably when you set twitter:card to summary_large_image. That is the difference between a tiny thumbnail and a full-width card.

Question 8

Why do SPAs sometimes show blank previews?

Accepted Answer

Many social crawlers do not run JavaScript. If your meta tags are injected only on the client, bots may see an empty shell. Server-side rendering or static HTML for metadata solves this.

Question 9

How do messaging apps use Open Graph?

Accepted Answer

WhatsApp, Slack, and Discord use the same core tags as social feeds. WhatsApp is stricter about image weight (aim for under ~300 KB), and Discord surfaces og:site_name above the title—worth setting explicitly.

Question 10

How long should og:title and og:description be?

Accepted Answer

Keep titles under about 60 characters and descriptions between 80 and 125 characters. Shorter copy truncates less often on mobile and leaves room for the message you actually want people to read.

Meta-tag inspector(228 ms)

Raw OG details

Open Graph FAQ

Meta-tag inspector(228 ms)

Raw OG details

https://opengraph-check.com/

Meta-tag inspector(228 ms)

Raw OG details

Open Graph FAQ

What are Open Graph meta tags?

Can meta tags live inside the HTML body?

What size should an Open Graph image be?

What makes an OG image worth clicking?

How do I refresh a cached or outdated preview?

Can OG images be generated dynamically for many pages?

Do I still need Twitter Card tags?

Why do SPAs sometimes show blank previews?

How do messaging apps use Open Graph?

How long should og:title and og:description be?

Meta-tag inspector(228 ms)

Raw OG details