About

Most trackers show you today’s number. The number is not the interesting part. What matters is whether it moved, when it moved, and what else changed on the same day. That needs a record, and a record has to start before you need it.

Why it is free

Every reading comes from a source that is free to query. Domain Rating, the popularity rank, the registration date, the certificate, the DNS records and the robots.txt policy all cost about nothing per domain. So one more domain on your list costs us close to nothing to read.

A cap on the free tier would exist only to sell you the removal of the cap. We are not going to build that. Paid products will come later, and they will be additions rather than a fence around the tracking core.

How it works

Domduck reads each tracked domain once a day and writes every reading as its own dated row. It never overwrites a row and never drops one to save space. You can replay a series years later.

That design has one consequence worth stating plainly. Nobody can backfill history. Rating history starts the day you add a domain, because the source publishes only today’s value. Rank is the exception: a real 40-day window arrives immediately.

When a day has no reading, the chart draws a gap rather than a zero. A gap means nobody looked that day. A zero would mean the score was zero, and those are different facts.

Who runs it

Domduck is a small independent project. It is not venture funded, it is not for sale, and there is no growth target it has to hit.

The plan is a 24 to 36 month horizon and a product that still works at the end of it. That is the reason for the boring choices: one database file, one container, data sources with no vendor lock, and a changelog and a status page that say what actually happened.

Contact

General questions go to hello@domduck.com. Press and research requests go to press@domduck.com. Security reports go to security@domduck.com.