Link Expiry: When It Helps, and Why Our Links Never Expire

Link expiry sounds like a small setting. Pick a date, and after it the link stops working. Some tools offer it on every short link, along with limits on the number of visits and a fallback address for when the link has ended.

LinkMint does not. Every short link made here keeps working indefinitely, and its code is never reused for anything else. That was a deliberate choice, and this piece explains both sides of it: the cases where expiry is genuinely the right tool, the cases where it quietly does damage, and the reasoning behind permanence for a free service with no accounts.

What expiry is actually for

Strip away the marketing and expiry answers one question: should this address stop leading anywhere after a certain point? There are situations where the honest answer is yes.

Access that should be temporary

The clearest case is a link that grants something. A password reset link, a one-time download, an invitation to join a shared workspace, a private file shared with one person. These links are effectively keys, and a key that works forever is a risk if the message containing it is forwarded, leaked or found years later in an old inbox.

Systems that issue these links usually generate them themselves, with a long random token and an expiry built in. That is the right place for it, because the system knows who the link was for and what it gives access to. A general shortener sitting in front of such a link adds nothing but another copy of the key.

Offers with hard limits

A discount that legally ends on a date, or a limited batch of early tickets, can reasonably sit behind a link that stops working when the offer does. Even here, though, the more dependable approach is usually for the offer page itself to check the date or the stock, because that is where the rule actually lives.

Containing spread

Sometimes a link is meant for a small audience and you would rather it did not circulate for ever. Expiry limits how long a leak matters. It does not stop the content being copied while the link is live, so it is a partial measure at best.

The problem expiry is meant to solve

The strongest argument for expiry on ordinary links is the stale link: one that works perfectly and is wrong. The page loads, nothing errors, and the visitor reads about an offer that ended in March or a timetable for last year's event.

That is a real problem. A broken link is at least honest about being broken, whereas a stale one misleads, and nobody reports it because from the outside it looks fine.

But expiry only swaps one bad outcome for another. Instead of an out-of-date page, the visitor gets a page saying the link has ended. Neither tells them what they actually wanted to know, which is what is happening now. The fix for staleness is a destination that stays current, not a link that disappears.

Where expiry does real damage

Expiry assumes you know where a link is and how long people will need it. For anything printed or widely shared, you know neither.

• •Printed material outlives its campaign. Posters stay in windows, flyers sit on noticeboards and packaging sits in cupboards long after anyone remembers the date set on the link.
• •Shared links travel. A link in a newsletter is forwarded, pasted into group chats, bookmarked, screenshotted and quoted in forum posts you will never see.
• •Links end up in records. Invoices, reports, manuals and published articles are read years later by people who need the reference to work.
• •The expiry date is rarely written anywhere but the link tool, so when it passes, nobody connects the broken poster to a setting chosen months earlier.
• •Expired is often a step towards deleted. If a service later frees expired codes for reuse, every surviving copy of the old link starts sending people to a stranger's destination.

The last point is the most serious. An expired link that shows a polite notice is a dead end. An expired code that is handed to someone else is worse than a dead end, because a printed code that people have learnt to trust now leads somewhere chosen by whoever claimed it.

January: a gym prints membership leaflets with a short link to its joining page
The link is set to expire at the end of March, when the spring offer ends
April: leaflets are still in the local library and the doctor's waiting room
Anyone who scans one sees a notice that the link has ended
The joining page itself still works, so the gym has turned away interested people for no reason

A permanent link to a joining page that simply said the spring offer had finished, and showed current prices, would have kept every one of those visitors.

If you do use expiry elsewhere

There are good reasons to use a tool that offers expiry for some links. If you do, a few habits make it far less risky.

1. 01Never set expiry on a link that is printed on anything with a long life, such as packaging, signage or equipment.
2. 02Set a fallback destination if the tool allows it, so an expired link leads somewhere useful rather than to a notice.
3. 03Record the expiry date somewhere your team will see it, alongside a note of where the link was used.
4. 04Ask the provider what happens to the code after it expires and whether it can ever be claimed by somebody else.
5. 05Prefer enforcing the real rule at the destination, such as an offer page that checks the date, and keep the link itself permanent.

It also matters what an ended link shows. A plain statement that the link is no longer active, with no blame on the visitor and a way to reach the organisation's main site, is the least bad version. A generic error page wastes what may be someone's first contact with you.

Why LinkMint links never expire

LinkMint is free and has no accounts. Anyone can paste an address and get a short link, and that shapes what a responsible default looks like.

There is nobody to warn

Without accounts, there is no way to tell someone that their link is about to end, and no way for them to extend it. A link that expires on a schedule its creator has forgotten would fail silently, usually on printed material, which is exactly the case where failing hurts most.

Codes are never handed to anyone else

Each short link gets a generated five-character code, and once a code is used it is never reused. Permanence and non-recycling go together: a code that cannot expire can never become free for someone else to claim, so a link in circulation can only ever lead where it was first pointed.

What you check stays true

Putting + in front of any code shows its destination without visiting it. Because links cannot be edited, deleted or expired, that answer does not go out of date. Someone checking a link before scanning a code on a public poster can rely on what they see.

Abuse is handled by review, not by timers

A common argument for expiry on public shorteners is that it limits how long a harmful link can circulate. LinkMint handles that directly instead. Anyone can report a link at /report without an account, and links can be disabled after review. That targets the harmful link specifically, rather than breaking every legitimate link on a schedule in the hope of catching a few bad ones.

What permanence means for you

Permanent links are simpler to live with, but they ask for a little thought up front, because you cannot edit, delete or expire them later.

• •Do not shorten anything you would not want to exist for ever. Query strings are kept exactly as you pasted them, so a URL containing a private token or personal details stays in the short link permanently.
• •Point time-limited campaigns at a page that can say the campaign has ended, rather than at a page that will vanish.
• •For anything printed, point the link at an address you control and can keep updating, such as a permanent page on your own site.
• •If you have no website, a bio page works well: the short link or QR code points at /@yourname, and you change the page content with its private edit link.
• •Check the destination with the + preview before printing, since there is no second attempt.

When you genuinely need a tool with expiry

If your work involves links that must stop working by a certain date for contractual or security reasons, use a system built for that, ideally the one that controls the underlying access. File sharing services, ticketing systems and sign-in systems all issue their own expiring links, and they can enforce the rule properly because they own the thing being protected.

LinkMint is not that tool, and it is better to know that before you rely on it. What it offers instead is the opposite promise: a short link that will keep leading to the same place for as long as the service runs.

A quick checklist

1. 01Is the link a key to something private? Use the expiring link the underlying system issues, not a shortener.
2. 02Is it printed, or will it be shared beyond your control? Make it permanent.
3. 03Will the content go out of date? Keep the link and update the destination page instead.
4. 04Is there anything in the URL you would not want to last for ever? Remove it before shortening.
5. 05Have you checked the destination with the + preview? Do it before anything is printed.

Expiry is a useful idea in the right place. For most links that people print, forward and keep, the better promise is that the link will still work when they finally get round to using it.