https://sysdesign.wiki/guides/guides

The page returned a 200 OK response and isn't blocked.

The title shown when your link is shared. Without one, platforms use your URL.

A short summary shown below the title in link previews.

The image shown in link previews. This is the biggest factor in click-through rates.

The image URL must return a 200 response or platforms can't display it.

Alt text improves accessibility and helps screen readers describe the image.

Images that are too small get upscaled, cropped, or rejected by platforms.

Twitter recommends at least 1200px wide.

Images that are too small get upscaled, cropped, or rejected by platforms.

Twitter recommends at least 600px tall.

Images outside the expected ratio get cropped, sometimes badly.

Twitter expects a 2.0:1 ratio.

Large images may not load or get rejected by platforms.

Keep under 5 MB.

Not all image formats work on every platform.

Supported: JPEG, PNG, WEBP, GIF.

Each page should have its own share image so your links stand out in feeds.

The page returned a 200 OK response and isn't blocked.

The title shown when your link is shared. Without one, platforms use your URL.

A short summary shown below the title in link previews.

The image shown in link previews. This is the biggest factor in click-through rates.

The image URL must return a 200 response or platforms can't display it.

Alt text improves accessibility and helps screen readers describe the image.

Images that are too small get upscaled, cropped, or rejected by platforms.

Slack recommends at least 1200px wide.

Images that are too small get upscaled, cropped, or rejected by platforms.

Slack recommends at least 630px tall.

Images outside the expected ratio get cropped, sometimes badly.

Slack expects a 1.9:1 ratio.

Large images may not load or get rejected by platforms.

Keep under 5 MB.

Not all image formats work on every platform.

Supported: JPEG, PNG, WEBP, GIF.

Each page should have its own share image so your links stand out in feeds.

The page returned a 200 OK response and isn't blocked.

The title shown when your link is shared. Without one, platforms use your URL.

A short summary shown below the title in link previews.

The image shown in link previews. This is the biggest factor in click-through rates.

The image URL must return a 200 response or platforms can't display it.

Alt text improves accessibility and helps screen readers describe the image.

Images that are too small get upscaled, cropped, or rejected by platforms.

LinkedIn recommends at least 1200px wide.

Images that are too small get upscaled, cropped, or rejected by platforms.

LinkedIn recommends at least 627px tall.

Images outside the expected ratio get cropped, sometimes badly.

LinkedIn expects a 1.91:1 ratio.

Large images may not load or get rejected by platforms.

Keep under 5 MB.

Not all image formats work on every platform.

Supported: JPEG, PNG, WEBP, GIF.

Each page should have its own share image so your links stand out in feeds.