Free tools / Badge generator

README badge generator

Live badges that update themselves: days left on an SSL certificate or a domain registration, and known vulnerabilities for an exact npm or PyPI version. Copy the Markdown into your README.

How it works

• The badge image is generated on request and cached for a few hours, so it is cheap to embed.
• Colours: green is more than 30 days left, yellow is 8 to 30 days, red is 7 days or less or expired. A vulnerability badge is green with none known, yellow with known advisories and red when one is high or critical.
• It is informational: no known advisory does not mean no vulnerability.
• Only public domains and packages are checked, and the number of requests per address is limited.

Need the numbers in code? Use the SSL and domain expiry API or the vulnerability API.