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heade.rs
See where any website lives and how your traffic gets there
Every domain lookup site looks like it's from 2004. So I built the one I wanted: https://heade.rs Type in any website and see where it's hosted, the route your traffic takes to get there, what it's built with, who registered it, and which AI bots it lets in. Fast, beautiful, free, no sign-up, and works from a terminal or MCP.
Hi Product Hunt, I'm Colin.
By day I run Paragraph. heade.rs is a side project that started as a quick way to check a site's response headers (hence the name) and turned into the page I wanted every time I got curious about a website.
Type in a domain or IP address and you get:
• Where it's hosted, down to the cloud region
• The route your traffic takes to get there, traced live from your browser and drawn on a map
• How fast it answers from where you are
• Who registered it, and when it expires
• What it's built with, and whether those versions are out of date or have known vulnerabilities
• Whether its email is protected from spoofing (SPF, DMARC, MTA-STS)
• Which AI crawlers it lets in, and whether it offers llms.txt, Markdown or an MCP server
• DNS, certificate and security headers
It's free, with no sign-up. For developers it also works from a terminal (curl heade.rs/yoursite.com), as a JSON API, and as an MCP server for AI agents.
Try it on your own site first. I'd love to hear what surprised you, and what you'd like it to check next.
About heade.rs on Product Hunt
“See where any website lives and how your traffic gets there”
heade.rs was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #88 on the daily leaderboard. Every domain lookup site looks like it's from 2004. So I built the one I wanted: https://heade.rs Type in any website and see where it's hosted, the route your traffic takes to get there, what it's built with, who registered it, and which AI bots it lets in. Fast, beautiful, free, no sign-up, and works from a terminal or MCP.
On the analytics side, heade.rs competes within Productivity, Developer Tools and Artificial Intelligence — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how heade.rs performed against the three products that launched closest to it on the same day.
Who hunted heade.rs?
heade.rs was hunted by Colin Armstrong. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of heade.rs including community comment highlights and product details, visit the product overview.
Colin Armstrong