How to quickly verify external urls in markdown
- Step 1Drop doc — Upload the Markdown with external URLs to verify.
- Step 2Check — Click Run — DNS reachability is tested for each URL.
- Step 3Update broken URLs — Replace unreachable URLs in your source.
Frequently asked questions
Will rate-limited sites report broken?+
Possibly. Sites with aggressive rate limits may CORS-fail; cross-check manually for important links.
Can I exclude certain domains?+
Currently all external URLs are checked. Domain exclusion is a future Pro feature.
What about HTTPS-only?+
Both HTTP and HTTPS URLs are checked. Replace HTTP with HTTPS variants where possible during cleanup.
Privacy first
All Markdown processing runs locally in your browser using JavaScript. No file is ever uploaded to JAD Apps servers — only metadata counters are saved for signed-in dashboard stats.