YouTube Description Links: The Setup That Gets Clicked (and Tracked)

The description box is the only shop window most YouTube creators have. It is also the place where people paste twelve links, a wall of hashtags, three social profiles, and a chapter list, then wonder why the affiliate revenue does not move.

Almost none of that block is visible when the viewer decides whether to tap. This is how to lay out description links for the way the app actually renders them, and how to set them up so that a month later you can say which video produced the clicks.

What viewers actually see

The first two lines are the only guaranteed space

YouTube collapses the description to roughly the first two or three lines — on the order of 150 characters — behind a “…more”. Everything below that exists only for people who deliberately expand it, and on mobile expanding means opening a panel that covers the video.

So the first line is not the place for “Welcome back to the channel!”. It is the place for the single link you most want clicked, described in the words the viewer is already thinking: “The mic in this video: creatorlink.bio/mic”. One line, one destination, above the fold.

Everything else is a reference list

Below the fold, the description behaves like a reference list: people arrive there on purpose, looking for a specific product, often minutes or months after watching. Optimise it for scanning, not for persuasion — product name first, link second, one line each, grouped under short headers.

The pinned comment is a second first line

On mobile, comments are often more visible than an expanded description, and a pinned comment sits above them all with your name and avatar attached. Put the same primary link there in one sentence. It costs nothing, it survives the algorithm surfacing your video a year later, and you can edit it without touching the description.

Cards and end screens

Cards and end screens can carry external links only if your channel is in the YouTube Partner Program and the domain is approved as an associated website. If you qualify, they are excellent for high-intent moments — the end of a review, the moment you show the product. If you do not, do not spend time on this; the description and pinned comment carry the traffic.

A description template that works

Adapt the labels, keep the order:

• Line 1: the one product or offer this video is about, with a short link. Nothing else.
• Line 2: your disclosure, in plain words. “Links below are affiliate links — I earn a commission at no extra cost to you.”
• Then: chapters, if the video has them. Viewers use them; YouTube uses them.
• Then: the gear or product block, grouped by category, one item per line.
• Then: your own destinations — newsletter, second channel, community.
• Last: boilerplate, social profiles, business email, hashtags.

The ordering rule is simple: everything above the fold is for the viewer who has not decided yet, everything below is for the viewer who already has.

Five rules for the link block

Make links readable, not raw

A raw affiliate URL is 150 characters of noise that wraps across three lines on a phone and looks like spam. A short link reads as a deliberate choice, survives being retyped from a phone screen, and stays the same length whatever you attach to the destination behind it.

One link per product, not one link per video

If eight videos share one “my gear” link, you can never attribute a sale to a video. Give each video its own links even when the destination is identical — the cost is a few seconds, the payoff is knowing which upload actually sells.

The tag has to be attached automatically

The most common way creators lose affiliate revenue is not strategy — it is a link pasted straight from a product page, without the tag, at 11pm before publishing. Tag injection at the link level means every link you create carries the right ID whether or not you remembered it. The full workflow is in adding your Amazon affiliate tag to every YouTube link automatically.

Assume the click happens on a phone

Most description clicks come from mobile, where the destination opens in a browser tab in which your viewer is logged out of everything. Links that hand off to the native app arrive at a screen where the viewer is signed in with a saved payment method — how deep links open the app instead of the browser covers the mechanics and the fallbacks.

Disclose above the fold, not in the hashtags

The FTC expects disclosures to be hard to miss. A disclosure below “…more” is, by definition, easy to miss. Put it in the second line of the description, say it out loud in the video when the product comes up, and tick YouTube’s paid promotion box when the video is sponsored — that checkbox covers sponsorships, not your affiliate links, so it does not replace the sentence.

Knowing which video actually sells

“My affiliate income went up this month” is not information you can act on. These three habits turn it into something you can:

• A distinct link per video and per placement.Description link and pinned comment link should be different links to the same product; the difference tells you which surface works for your audience.
• Tracking IDs for programs that support them. Amazon Associates lets you create additional tracking IDs and report on them separately. One per channel, or per series, gives you revenue attribution inside Amazon’s own reports rather than guesswork.
• UTM parameters for destinations you control. Your own site, shop, or newsletter can tell you exactly which video produced a signup — UTM parameters for creators explains the five parameters and a naming convention worth keeping.

Combine those with per-link click data — country, device, referrer, time — and a description stops being a hopeful list and becomes a measurable placement.

The part everyone forgets: the back catalog

A YouTube video keeps earning views for years, and a static affiliate URL keeps earning nothing the moment the product is discontinued or your tracking ID changes. Editable short links mean you repoint the destination once and every description that ever contained that link updates itself. If you have already published hundreds of raw links, the repair process is here.

FAQ

How many links should a YouTube description have?

One above the fold and as many as the video genuinely references below it. The failure mode is not quantity, it is the absence of hierarchy: twelve links with no order is the same as no links.

Do links in descriptions hurt reach?

There is no credible evidence that ordinary outbound links suppress a video. What does hurt is behaviour that looks like spam — identical link blocks copied across dozens of uploads, link shorteners used to disguise destinations, or links that violate YouTube’s policies. Keep it relevant and transparent.

Should I use a pinned comment or the description?

Both, for the same primary link, as separate short links so you can compare. Many creators find the pinned comment out-performs on mobile and the description on desktop, but the split varies enough by audience that it is worth measuring rather than assuming.

Can I edit descriptions in bulk?

YouTube Studio offers bulk actions for some fields, but rewriting link blocks across a large catalog is still slow, manual work. That is precisely the argument for links whose destination you can change without editing the video at all.