Someone on Reddit Described Our Source Index Without Knowing It Exists

A highly voted comment in an archived r/SEO thread, do expired domains actually still work in 2026, describes a way of finding expired domains that we recognised straight away. It is the method our source hubs run continuously, and the commenter had no idea we exist.

We have written up both halves: the reverse hunt and the index test. This post covers why we think the method is sound and where we would depart from it.

The method

Work backwards from trust. Look at the links pointing at the sites already ranking in your subject and pick the most trusted linkers, such as associations, non-profit directories and institutions, instead of the highest-scoring ones. Crawl those sites yourself and read their outbound links. The dead ones point at domains nobody renewed. Judge each candidate on whether its own links are numerous and on topic, and whether the name is a generic word with no company name or trademark in it. Then test it: register the name, put a small site on it with no outbound links and no redirects, submit it, and see whether it gets indexed within three to five days.

The first three steps are a data pipeline, which is why we could build them.

Where it matches what we built

We built the directory in this direction because starting from a drop list gives you a million names and no reason to care about any of them. Starting from sites that still link out gives a much shorter list, and each entry comes with its own evidence.

The source index is that list. As of October 2026 it has a hub for well over a hundred well-known linking sites, and about 14,200 listings across more than 200 top-level domains. Every link was found in our own web crawl, so no seller claims it for us. That is the same standard as crawling the linker yourself. The institutional slices are small: 268 listings carry a link from a tracked university and 139 from a tracked government site.

The comment gets two things right that most buying advice gets wrong. Trust belongs to the linking page, and no score stands in for it. The name matters as much as the link profile, because a dead company's name is a trademark problem with a cheap registration fee attached.

Two checks we would add

Read the history, not just the links. A domain can have excellent linkers and spend its last two years as something else. Every listing in the index has to clear three things: a live link from a tracked source in our web crawl, archived site history, and an AI classification of what the site was. We do not use third-party authority or spam scores for this. Names flagged as spam are left out.

Read the site history as a timeline. The number of archived snapshots matters less than their shape. One consistent subject over several years is a good sign. A legitimate site that turns into a link farm just before expiry should disqualify the name, even if its links looked good.

We also check availability against live DNS instead of trusting a drop feed. Every listing was re-checked within the last 30 days. A stale row wastes the reader's time, and time is what this work runs on.

What we are not claiming

The index test is the step we like most and can prove least. The commenter reports registering about 50 fully dropped domains in a month, with roughly 30 indexing within days, and says links from those lifted rankings and sales. That is one person's result. We have not reproduced it, we will not quote it as a conversion rate, and a ratio like that says little about the specific name in front of you.

Per domain, this is still a gamble, and screening improves the odds. A fast index means Google treats the name as an ordinary live site. It does not promise rankings, and anyone selling more certainty than that is selling something else.

What the method does is put the work in the right order: read the links, read the history, check the name, then spend the registration fee on the test. If you would rather start from a list than a crawler, browse the directory and pick the source hub closest to your subject.