The road ends at your door
On a one-stage route the finished article comes back to you rather than moving on to another office. That is a small fact with real weight: no later desk will tidy up a bent, separated or half-copied bundle, because there is no later desk. An apostille from United Kingdom to Moldova puts the last stretch of the job in your own hands.
Where Moldova stands
Moldova joined the Hague Apostille Convention in 2007, so this corridor has run to one stage for years. A single British certificate is what document legalisation for Moldova comes down to, with nothing added after it. The route is short, long settled and unlikely to change shape while your envelope is somewhere between here and there.
A pair, not a page
What arrives back is two things fastened as one: your document, and a certificate about the signature on it. Split them and each half loses most of its point — a loose certificate names a sheet that is not there, and the sheet on its own carries nothing extra. So keep them together, and resist the urge to file the smart-looking certificate somewhere safer than the paper it describes.
One look before it goes on
Before the bundle travels again, give it one slow look: the right document, whole, still attached, and readable where it counts. Anyone reading up on what you need for an apostille for Moldova will find the office and the charge in a minute; this last look is the part that nobody writes down, and it is the only quality check left on the road.