How prometheus.io Looks on Slack
80/100
Good
2 fixes recommended
prometheus.io has the basics in place, with a handful of fixes that would tighten things up. Open Graph, Twitter Card, and a favicon are all wired up. The previews below show exactly how a link to prometheus.io looks on Slack.
Slack preview
#
Slack
prometheus.io
Prometheus - Monitoring system & time series databaseAn open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach.

Your social image needs work
Your 1200×1200 image (1:1) gets cropped on Twitter, Facebook, and LinkedIn. Use one of the sizes below for predictable rendering.
Recommended sizes: 1200×630 (universal) 1200×675 (Twitter)
Frequently Asked Questions
No - prometheus.io does not set an
og:type meta tag. Most platforms default to website, but explicitly declaring it ensures consistent rendering.See prometheus.io on other platforms
Same domain, different platform-specific report.
Validate other sites on Slack
A handful of other domains scored on the same platform.
Validate your own URL
See how your site looks across all major social platforms - instantly, free, no signup.
Try LinkPreview.io