"Link in bio" refers to the clickable link you place in your biography on Instagram or TikTok. It's the only place, under your name and description, where you can put a link your audience can tap to leave the app — hence the phrase "the link is in the bio".
Definition of the link in bio
To sum up: the link in bio is the single clickable link allowed in your profile biography. An Instagram link in bio and a TikTok link in bio work the same way — one field, one link, placed under your description. The term exists because these networks lock down links everywhere else: your bio is the only exit door to an external page.
Why this phrase exists
On Instagram and TikTok, you can't put a clickable link in a post or a caption. The only field where a link truly works is your biography. So when a creator says "link in bio" in a story or a video, they're sending you to that single link placed in their profile.
The problem: one link for everything. Your recommendations, your promo codes, your latest video, your collabs… everything has to fit behind that one link. That's why creators don't put a raw link there, but a link-in-bio page that gathers everything in one place. We break down the whole mechanism in the link-in-bio guide.
Where the phrase "link in bio" comes from
The phrase was born on Instagram. Because the network didn't allow any clickable link in posts or captions, creators got into the habit of sending their audience to the only place that accepts one: their bio. From there came the famous "link in my bio", repeated in captions, stories and videos to say "go click the link on my profile".
Today the formula has become so common that you hear it everywhere, including on networks where links work differently. It's become a verbal reflex among creators.
The link in bio isn't limited to Instagram
We often associate it with Instagram, but you find the link in bio on most networks:
- TikTok: a link field in the bio, unlocked depending on your account type.
- Facebook: a link (website) to add to your page or profile, in the "About" section.
- YouTube: links in the channel description, displayed on your banner.
- X (Twitter): a "website" field under your profile bio.
The principle is the same everywhere: a limited space to place a clickable link that takes the visitor out of the app. Hence the value of pointing that link to a page that gathers everything, rather than to a single destination.
Where to see a link in bio in practice
You come across them every day without necessarily naming them: under a beauty influencer's name, the little link leading to their products; on a YouTuber's profile, the link to their store; in a brand's bio, the address of its site. Each time, it's the same mechanism: a single link placed in the profile, serving as the entry point to everything else.
Does the link in bio tell you who clicked?
A common worry — and the answer is no. Instagram and TikTok never reveal which individual tapped your link in bio: there's no list of names. What you can get is the number of clicks, and only if your link points to a page that counts them. A plain link shows you nothing; a link-in-bio page with built-in stats shows how many people clicked and which products drew the most taps — anonymously, as aggregate numbers, never personal identities. That's the difference between guessing what your audience wants and actually knowing.
Link in bio: one tool, two ways of saying it
Whether someone says "link in bio" or "the link in my bio", they mean exactly the same thing: the single clickable link in your biography. You'll hear it phrased different ways, but there's no difference between them.
How to make it a link that earns money
A link in bio that points to a single destination wastes your clicks. To turn it into a lever, aim for a recommendation page:
- Create one card per product you recommend: your photo, your honest take, your promo code, your affiliate link.
- Tidy your cards into sections (latest release, your products, your essentials) so the visitor finds their way.
- Put that page's address in your bio — a single link, but one that opens your whole storefront.
-10%Rare Beauty
Soft Pinch Blush
« Mon blush indispensable — un seul coup et il tient toute la journée. »
A raw link in the bio converts poorly: the visitor doesn't know what to click. A page of cards, on the other hand, shows your recs at a glance and multiplies qualified clicks to the merchants.
This is precisely the role of Spotilink, your link-in-bio page: you compose your cards manually, you organize them, and everything lives behind your single link — with no commission on your affiliate links (5% + fees for collabs via Spotilink secure payment).
Taking action
Now that the term is clear, the next step is to set it up on your profile. Whether you're aiming for an Instagram link in bio or a TikTok link in bio, the logic stays the same: we explain exactly where to paste your link in how to add a link in bio on Instagram.