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How to Set Up Link Retargeting: A Complete Step-by-Step Guide

L
Lunyb Security Team
··9 min read

Link retargeting is one of the most underused growth tactics in digital marketing. While most brands only retarget visitors to their own websites, link retargeting lets you build advertising audiences from people who click any link you share — including links to third-party blogs, news articles, podcasts, or YouTube videos. That means every piece of curated content you post on social media becomes a top-of-funnel acquisition engine.

In this guide, you'll learn exactly how to set up link retargeting from scratch, which pixels to install, how to structure your campaigns, and how to avoid the most common mistakes. By the end, you'll have a working retargeting funnel that turns shared links into qualified leads.

What Is Link Retargeting?

Link retargeting is a marketing technique that adds a tracking pixel to a shortened URL, so that anyone who clicks the link gets added to a custom advertising audience. Unlike traditional retargeting, which only captures visitors to pages you own, link retargeting captures clicks on any URL — including external content you don't control.

Here's the basic flow:

  1. You shorten a link (for example, to a news article about your industry).
  2. A pixel is attached to the short link.
  3. When someone clicks, they land on the destination page and get added to your retargeting audience.
  4. You serve them ads on Facebook, Instagram, LinkedIn, Google, or TikTok later.

It's a powerful loophole: you can effectively retarget the audience of any publisher, influencer, or content creator simply by sharing their links through your branded short domain.

Why Link Retargeting Works So Well

Most retargeting only works if someone has already visited your site. That's a very small pool. Link retargeting expands your top-of-funnel dramatically because:

  • Curated content gets more clicks than promotional content. People are more likely to click on a useful third-party article than on your sales page.
  • You build audiences before someone knows your brand. By the time they see your ad, they've already engaged with relevant content you shared.
  • It's cheaper than cold traffic. Retargeting CPMs are typically 30–60% lower than prospecting CPMs, and conversion rates are 3–10x higher.
  • It compounds. Every link you share — in newsletters, tweets, LinkedIn posts, Slack groups — feeds your audience.

What You Need Before You Start

Before setting up link retargeting, gather these prerequisites:

  1. A link shortener that supports retargeting pixels. Not all shorteners do. Look for tools with pixel integrations for Meta, Google Ads, LinkedIn, TikTok, and X.
  2. An advertising account on at least one platform (Meta Business Manager, Google Ads, LinkedIn Campaign Manager, etc.).
  3. A custom domain (recommended). Branded short links like go.yourbrand.com dramatically improve click-through rates compared to generic ones.
  4. Compliance with privacy laws. GDPR, CCPA, and similar regulations require disclosure and, in many cases, consent before dropping tracking pixels.

If you're still choosing a shortener, our 2026 buyer's guide to URL shorteners compares the top options side-by-side.

Step 1: Install Your Advertising Pixels

Before you can retarget, the ad platforms need a pixel installed on a page you own. This pixel is what fires when someone passes through your short link.

Meta (Facebook & Instagram) Pixel

  1. Go to Meta Events ManagerConnect Data SourcesWeb.
  2. Select Meta Pixel, name it, and copy the Pixel ID (a 15–16 digit number).
  3. Save the ID — you'll paste it into your link shortener.

Google Ads Tag

  1. In Google Ads, go to Tools & SettingsAudience ManagerYour data sources.
  2. Set up the Google Ads tag and copy your Conversion ID.

LinkedIn Insight Tag

  1. In LinkedIn Campaign Manager, go to AnalyzeInsight Tag.
  2. Copy your Partner ID (a 7-digit number).

TikTok Pixel

  1. In TikTok Ads Manager, navigate to AssetsEventsWeb Events.
  2. Create a pixel and copy the Pixel ID.

Step 2: Add Pixels to Your Link Shortener

Most retargeting-capable shorteners have a dedicated "Pixels" or "Retargeting" section in settings. The setup typically looks like this:

  1. Log into your link shortener dashboard.
  2. Navigate to Integrations or Retargeting Pixels.
  3. Click Add Pixel, select the platform (Meta, Google, LinkedIn, etc.), and paste the Pixel ID.
  4. Save and give the pixel a clear internal name (e.g., "Meta — Main Brand").

Some platforms let you attach multiple pixels to the same link, so a single click can populate audiences across Meta, Google, and LinkedIn simultaneously. Tools like Lunyb and the alternatives covered in our Rebrandly review include this kind of multi-pixel functionality.

Step 3: Create Your First Retargeting Short Link

Now you'll attach the pixel to an actual link.

  1. In your shortener, click Create New Link.
  2. Paste the destination URL — this can be your own site or, more powerfully, a third-party article that your audience would find valuable.
  3. Customize the slug (e.g., go.yourbrand.com/industry-trends).
  4. Under Retargeting, attach the pixels you set up in Step 2.
  5. Save and copy the short link.

Now every click on that link fires your pixels and adds the visitor to a retargeting pool on each ad platform.

Step 4: Build Custom Audiences in Each Ad Platform

A pixel firing isn't enough — you need to define an audience the ad platform can use.

Meta Custom Audience

  1. In Meta Ads Manager, go to AudiencesCreate AudienceCustom Audience.
  2. Choose Website as the source.
  3. Set the rule to People who visited specific web pages and enter the URL contains rule matching your short domain (e.g., URL contains: go.yourbrand.com).
  4. Set retention to 30, 60, or 180 days depending on your sales cycle.

Google Ads Audience

  1. In Audience Manager, click + New audienceWebsite visitors.
  2. Use the rule URL contains and add your short domain.

LinkedIn Matched Audience

  1. Go to PlanAudiencesCreate AudienceWebsite.
  2. Define the URL rule with "contains" matching your short domain.

Step 5: Launch Retargeting Campaigns

Once your audience reaches the minimum size required by each platform (usually 100–1,000 users), you can start serving ads.

  1. Create a new campaign in your ad platform with the objective of Conversions, Traffic, or Lead Generation.
  2. At the ad set level, select your newly created custom audience.
  3. Exclude existing customers and people who've already converted to keep CPMs low.
  4. Use ad creative that bridges the curated content to your offer. For example, if you shared an industry trend article, your ad might say: "Loved that report on [topic]? Here's how we help teams act on it."
  5. Set a modest daily budget ($10–$30) and let the campaign run for 7–10 days before optimizing.

Link Retargeting Pixel Compatibility Comparison

Here's how the major ad platforms compare for link retargeting use:

PlatformMin. Audience SizeCookie WindowBest For
Meta (Facebook/Instagram)100 usersUp to 180 daysB2C, e-commerce, lifestyle
Google Ads1,000 users (Display)Up to 540 daysBroad reach, search remarketing
LinkedIn300 usersUp to 365 daysB2B, SaaS, professional services
TikTok1,000 usersUp to 180 daysGen Z, brand-building
X (Twitter)100 usersUp to 90 daysNews, tech, finance

Best Practices for High-ROI Link Retargeting

Share genuinely valuable content

The whole strategy collapses if people don't click your links. Curate articles, reports, and videos your target audience actually wants to read. Promotional links convert worse and damage trust.

Segment audiences by content topic

Create separate short links (and audiences) for each content theme. Someone who clicked an article on "remote team management" should see different ads than someone who clicked "cybersecurity trends."

Use branded short domains

Branded domains (like go.yourbrand.com) get clicked up to 39% more often than generic shorteners. They also build brand recall every time the link is shared.

Rotate creative weekly

Retargeting audiences are small and see ads more frequently. Refresh creative every 7–10 days to avoid ad fatigue and rising frequency caps.

Respect privacy laws

Display a cookie/tracking notice on landing pages you control. For users in GDPR regions, only fire pixels after consent. Most shorteners with retargeting features include a built-in consent prompt — use it.

Common Mistakes to Avoid

  • Attaching pixels to every link without strategy. Tag content links that match your buyer persona; skip generic links.
  • Forgetting to exclude converted users. Always exclude existing customers from prospecting and middle-funnel retargeting.
  • Targeting too small an audience. If your audience is below the platform minimum, ads simply won't deliver. Share consistently for 2–4 weeks to build size first.
  • Skipping UTM parameters. Add UTMs to your destination URLs so you can attribute conversions back to specific short links.
  • Using a shortener flagged for spam. Some free shorteners are blocked by social platforms. Use a reputable provider — see our comparison of the best shorteners for vetted options.

Measuring Success

Track these KPIs to know if link retargeting is working:

  1. Audience growth rate — how fast your retargeting pool is expanding.
  2. Click-through rate (CTR) on the short links themselves — aim for 2%+ on social posts.
  3. Retargeting ad CTR — typically 1.5–3x higher than cold prospecting ads.
  4. Cost per acquisition (CPA) — compare against your prospecting CPA; retargeting should be cheaper.
  5. Return on ad spend (ROAS) — the ultimate metric. Healthy link retargeting campaigns deliver 3–8x ROAS.

Frequently Asked Questions

Is link retargeting legal?

Yes, link retargeting is legal in every major market when done with proper disclosure and consent. You must comply with GDPR (EU), CCPA (California), and similar privacy laws. This typically means displaying a cookie banner, offering opt-out, and not retargeting sensitive categories like health or finance without extra safeguards.

How many clicks do I need before I can run retargeting ads?

You need enough clicks to exceed each platform's minimum audience size. Meta and X require 100 users, LinkedIn requires 300, and Google Display and TikTok require 1,000. In practice, most marketers can hit Meta's threshold within 1–2 weeks of consistent sharing.

Can I retarget people who clicked someone else's link?

Yes — that's the core advantage of link retargeting. As long as you shortened the link with your pixel-enabled shortener, anyone who clicks gets added to your audience, even if the destination is a third-party site. This is what makes the tactic so powerful for content curators.

Does link retargeting work with iOS 17 and modern browser tracking restrictions?

Performance has decreased compared to a few years ago, but link retargeting still works. Pixels fire when users actually click through your domain, which generates a first-party signal that's more resilient than passive third-party tracking. Server-side conversion APIs (like Meta CAPI) further improve accuracy.

What's the difference between link retargeting and site retargeting?

Site retargeting builds audiences from visitors to your own website. Link retargeting builds audiences from people who clicked any link you shortened, regardless of destination. Site retargeting captures intent; link retargeting captures interest. The two strategies complement each other — most sophisticated marketers run both.

Final Thoughts

Link retargeting transforms every link you share into a marketing asset. Instead of pushing traffic into a single funnel, you're building an always-on audience-generation system that feeds on curiosity rather than promotion. Setup takes less than an hour, and the compounding returns over months are substantial.

Start with one platform (Meta is the easiest), one short domain, and three to five curated links per week. Once you see audience growth and your first retargeting campaign delivers, scale to additional platforms and content themes. The marketers who win with this strategy are the ones who treat curation as a long-term habit, not a one-time experiment.

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