About shadom.co
A domain monitoring tool built by someone who got tired of checking WHOIS by hand.
What this is
shadom.co watches domains for you. It tracks expiration dates, predicts when expired domains will actually drop (the rules differ for every TLD), and sends an alert when a registrar, nameserver, or status code changes. You can watch up to 100 domains on the free plan.
Under the hood it queries RDAP first and falls back to WHOIS where registries have not migrated yet, normalizing both into one change history. There is also an API and an MCP server, so scripts and AI assistants can use the same data.
Who builds it
shadom.co is built by Matthieu Malvache at ma2t, a French software studio. Matthieu is a domain collector before being a developer: the watchlist started as a text file of names he wanted if they ever dropped. Checking WHOIS on each of them by hand stopped scaling somewhere around the twentieth domain, so he wrote a script. The script learned RDAP, then drop-date prediction, then push alerts, and at some point it stopped being a script and became shadom.co.
The guides on this site are written by the same person who writes the RDAP parsing code and snipes drops with it, which keeps them honest: everything documented here is something the monitoring engine, or its owner, actually deals with.
Contact
Questions, bug reports, or a TLD whose drop schedule looks wrong? Write to .