The short version
The pages are still there to open. Rows, headings, prices, sizes and notes read the same way they did when somebody wrote them, because nothing about a list stops being a list. What stopped is the route from the wrapped address in a row to an order box.
So browsing is fine and rebuilding is fine. What is not fine is pasting a wrapped address into a checkout and expecting it to work. That step failed for every wrapped address collected in the 2026-W39 window, without a single exception.
The answer on whether you can still use ACBuy links covers the same ground from the other end, starting with what your link is rather than what the page is. Read the two together and the picture is complete: one asks about a tool, the other about an archive.
One habit keeps an old sheet useful: nothing in it is live until you check it. Age alone does not make a row wrong. It makes the row unverified, which is a different thing, and the difference decides what you do next.
Four numbers
First, 93. That is how many records the published 2026-W39 sample holds, and it is the base under every rate quoted from it. A rate drawn from a base that size describes a window rather than a rule. Small bases are useful, and they are not laws.
Second, 113. Those directory addresses never finished a reading when the host stopped accepting connections, and they were dropped instead of being written down as unknown. An old sheet that leaves unfinished rows blank is doing the honest version of the same thing.
Third, 8. Checks ran with an 8-second timeout, no cookies and no account, which is what makes a result reproducible by somebody else. The checking method page states that setting in full rather than in summary. Reproducible is the only kind of check worth trusting twice.
Fourth, 5. Five readings can come back for an address: resolves, moved, gone, shielded, unrecorded. A page that sorts its rows into working and broken is hiding three of the five, and one of the hidden three is a check that simply failed.
Two common questions
Question one: is an old sheet dangerous to open? The failed half of it is a route that no longer answers, and an address that cannot connect returns an error rather than anything else. The five status words describe responses, not threats.
Question two: is it worth keeping? Yes, as a dated record. Item IDs, sizes and prices as they were seen, each with the date attached, are exactly the raw material a rebuild needs later, and they are cheap to store.
What it is not worth is trust without a check. Re-run the rows you still care about, put today's date beside the result, and let the old page stay what it is: an archive rather than a live list. An archive with dates beats a live list with none.