The Complete Guide to Link Retargeting Pixels

A link retargeting pixel is one of the highest-leverage features in a modern URL shortener. In one line: it lets you build an ad audience of "people who clicked my link" — even if those people never visited your website, and even if you don't own the destination page. This guide explains the mechanics and the patterns.

What is a link retargeting pixel?

A pixel is a tiny tracking snippet (technically a 1×1 transparent image or a <script> tag) that fires when a page loads. Each major ad platform — Meta, Google, LinkedIn, Twitter, TikTok — provides its own pixel. When the pixel fires, it tells the ad platform "this user just visited this page."

Normally, you embed the pixel on your own website. The ad platform builds a custom audience of everyone who's visited, and you can run retargeting ads to that audience.

A link retargeting pixel is the same idea, but the pixel fires when someone clicks your short URL, before they reach the destination. That means you can build an audience around clicks on links pointing at any destination — including pages you don't own.

When this matters

Three patterns where link retargeting outperforms standard website-pixel retargeting:

1. Affiliate / influencer marketing. You share an affiliate link to a partner's product page. The partner has their own pixel (which they're not sharing with you), so you can't retarget the visitors. But if the affiliate link is wrapped in a Lnky short URL with your pixel attached, your pixel fires on click, and you get the audience.

2. Email and SMS campaigns. Your email blast links to a press article, a partner page, or a content hub you don't own. Without a link pixel, you have no audience to retarget. With one, every clicker is added to your custom audience.

3. Pre-launch / waitlist campaigns. You're driving traffic to a landing page that's not live yet (or is a partner's coming-soon page). You can't put a pixel on a page you don't control — but you can fire your pixel on click via the short URL.

How it actually works

When a user clicks a short URL with a pixel attached, Lnky's redirect flow does this:

1. User clicks lnky.click/launch.
2. Lnky's server returns an intermediate HTML page (not a 302 redirect) that:
   • Contains the pixel snippet for the configured ad platform (Meta, Google, LinkedIn, etc).
   • Fires the pixel in the user's browser.
   • Immediately redirects to the destination URL via <meta http-equiv="refresh"> or JavaScript window.location.
3. The user lands on the destination, having spent maybe 50–200ms on the intermediate page.

The intermediate page is invisible to most users — they see a brief flash of a blank page, then the destination loads. The ad platform's pixel fires and the user is added to your custom audience on that platform.

Pixel platforms supported by Lnky

• Meta (Facebook + Instagram) Pixel — by far the most common, biggest audience reach.
• Google Ads Pixel (Google Tag) — for Search and Display campaigns.
• LinkedIn Insight Tag — B2B-focused retargeting.
• Twitter / X Pixel — useful for B2B and SaaS audiences.
• TikTok Pixel — younger demographic, fast-growing for consumer brands.

Each pixel requires its own ID, which you grab from the ad platform's setup wizard.

Setting up your first link pixel in Lnky

1. Get your pixel ID. In Meta Business Manager: Events Manager → Data Sources → Pixels → copy the 15-digit ID. Equivalent flows exist for Google, LinkedIn, etc.
2. Open a short URL in your Lnky dashboard. Go to the link's edit screen.
3. Pixels tab → Add pixel. Pick the platform (Meta, Google, etc) and paste the ID.
4. Save. The pixel now fires on every click going forward.

You can attach one pixel per link on the Pro plan, unlimited on Agency.

Audience building patterns

Pattern 1 — single-link campaign

One short URL, one pixel, one campaign. Use this for tightly-scoped campaigns where every clicker is interesting.

Example: a podcast sponsorship. The host says "go to acme.com/podcast" → which is a Lnky short URL with the Meta pixel attached. Every listener who clicks gets added to a Meta custom audience. Two weeks later, you run a retargeting ad to that audience offering a 20% discount code.

Pattern 2 — multi-link campaign with shared audience

Multiple short URLs, all firing the same pixel. Use this when you want to retarget anyone who clicked any version of a campaign URL.

Example: a multi-channel launch. You create one short URL per channel (q4-email, q4-twitter, q4-linkedin), all firing the same Meta pixel. Every clicker, regardless of channel, ends up in the same custom audience.

Pattern 3 — qualified audience funnel

Use multiple pixels per link to build progressively-qualified audiences.

Example: a Pro plan upgrade promo. Short URL fires the Meta pixel (broad audience) and the LinkedIn Insight Tag (B2B-qualified audience). You can run two parallel retargeting campaigns — one Meta-side, one LinkedIn-side — and compare which segment converts better.

Common questions

Does the pixel delay the redirect? Yes, but the intermediate page typically resolves in 100–300ms. Most users don't notice.

Will the pixel work if the user has an ad blocker? No. Ad blockers block pixel firing. Estimate ~25–35% of desktop users use a blocker; mobile is closer to 5–15%.

Can I retroactively retarget people who clicked before I added the pixel? No. The pixel only fires on clicks that happen after it's configured. Plan ahead — set up the pixel before you start running the campaign.

Does this work for iOS users post-ATT? Apple's App Tracking Transparency (iOS 14.5+) prevents cross-app tracking, which limits Meta's ability to attribute the audience back to specific users. The pixel still fires; the audience size is just smaller for iOS users than it would have been pre-2021.

What to do next

If you're already running ads on Meta or Google, link pixels are the highest-leverage feature you're probably not using. Pick one upcoming campaign, wrap the destination URL in a Lnky short URL, attach your Meta pixel, and run it. Watch your custom audience grow with every click. Two weeks later, ship a retargeting campaign to that audience and compare conversion rates to your usual lookalike or interest-based targeting.

That single iteration tends to be the moment people decide link pixels are worth keeping in the stack.