Product
YouTube description links that survive the fold and the re-upload
Descriptions hold 5,000 characters but viewers see three lines. How to place links, track which video sent the click, and re-point every link in a back catalogue at once.
By Wasim Idrishi · Updated · 4 min read
A YouTube description holds 5,000 characters as of September 2026 and a viewer sees roughly three lines of it. That gap is where most channels lose the click: the link is in there somewhere, below the timestamps, under a wall of affiliate disclosures, behind a Show more nobody taps.
The fix is layout, not copywriting. But the interesting problem sits one layer down, and it is the one nobody notices until year two.
The back catalogue problem
A channel with 200 videos has 200 descriptions. Each one contains a link that was correct on the day it was published.
Then the shop moves platform. Or the course gets a new landing page. Or the sponsor's tracking URL is retired and starts 404ing. Now every one of those descriptions is wrong, and fixing them means opening 200 videos in Studio and editing them by hand, an afternoon at best, and a job nobody ever does completely.
If those descriptions had held short links, the fix would be a filter in the dashboard, a multi-select and one edit. The redirect cache invalidates on save, so the whole catalogue re-points in about a second.
This is not a hypothetical. It is the single most common reason a creator moves to a shortener, and it always arrives after the damage is already spread across a hundred videos.
A worked example
A channel with a course, a newsletter and a Patreon uses three permanent codes plus one per video.
Permanent: gc.mw/course, gc.mw/news, gc.mw/patr. These appear in every description, in the same order, in the
first two lines. They never change, so viewers who watch a lot start recognising them.
Per video: gc.mw/e142 for episode 142, pointing wherever that episode's call to action goes, with
utm_source=youtube, utm_medium=description and utm_content=e142 stored on the link.
Two months in, the course platform changed and the checkout URL changed with it. gc.mw/course was re-pointed once.
Every description on the channel, including the ones published in 2024, was correct again immediately.
What the analytics add
YouTube Analytics is excellent up to the click and blind after it. It tells you impressions, click-through rate on the thumbnail, watch time and where viewers left. It cannot tell you that episode 142 drove eleven course sign-ups and episode 143 drove none, because that happens on a different site.
The short link covers the gap: clicks and unique visitors by day, country, device family, browser and referrer, with
YouTube's domains, youtube.com and youtu.be, folded into one row. Per-video codes turn that into a leaderboard
of which content actually sends people, which almost never matches the leaderboard of which content gets views.
Retention runs 30 days on Free, 365 on Pro and 1,095 on Business, and for a channel that publishes weekly the year-over-year comparison is the one worth paying for.
Cards, end screens and the description are different things
Cards and end screens keep the viewer inside YouTube and are governed by YouTube's own link rules. The description is the only place a raw external link lives, which makes it the only place worth instrumenting.
Put the same short link in the pinned comment with a different code. Pinned comments reach a different slice of the audience, often the mobile viewers who never expand a description, and two codes give you two numbers instead of one ambiguous total.
Shorts deserve their own treatment again. The description is barely visible in the Shorts player, so the link that
matters is the one a viewer types after seeing it on screen for two seconds. Four characters, no ambiguous glyphs, our alphabet drops 0, O, I and l for exactly that reason, and a different code per Short, so the typed
traffic never merges with the long-form description clicks. On the channels we have watched, typed codes produce a
tenth of the volume and several times the conversion rate, because typing a URL from memory is an act of intent that
tapping a link is not.
Build the tagged link first
UTM Builder
Open the full toolFill in source, medium and campaign, get a clean URL with no typos, then shorten it. Or skip the middle step: store the UTM fields on the short link itself and keep the description line at ten characters instead of ninety.
The branded links page covers aliases and editing destinations after publication, which is the part of this that pays off in year two.
Questions people ask
Where should the link go in a YouTube description?
Above the fold, in the first two lines, because that is all a viewer sees before tapping Show more. Everything else, timestamps, credits, affiliate disclosure, goes below. If the link is the point of the video, it should be visible without a tap.
How do I know which video a click came from?
Give every video its own short link, even when they all point at the same page. One code per video is free and gives you a per-video click count that YouTube Analytics cannot produce, because YouTube stops measuring at the click.
Can I change a link across 200 old videos?
That is the whole argument for shortening them. If each description holds a short link, you edit destinations in the dashboard and the back catalogue re-points itself. If each holds a raw URL, you are editing 200 descriptions by hand.
Do YouTube links pass a referrer?
Sometimes youtube.com, often nothing at all on mobile. UTM parameters stored on the short link solve it: they are appended during the redirect, so the campaign fields arrive whatever the app decides to send.
Should I use the same link in the pinned comment?
Use a different code pointing at the same place. Pinned comments and descriptions perform very differently by audience, and one merged number tells you nothing about which to write next time.
Sources
- YouTube Help: add a video description · checked 5 September 2026
- Google Analytics Help: collect campaign data with custom URLs · checked 5 September 2026
