Tracking Link Diff

Compare an original and final tracking URL to see what changed, disappeared, or was added.

Compare two tracking URLs

Paste the original campaign URL and the final URL to see which hosts, paths, or tracked parameters changed on the way through the funnel.

What this diff checks

Tracking Link Diff compares two URLs and highlights host, path, and tracking-parameter differences so you can prove what changed between the original link and the final landing URL.

Why use this diff

Prove where data changed

Show whether fbclid, gclid, subid, or UTM values disappeared or changed between two URL states.

Review before and after

Compare pre-tracker and post-tracker URLs, safe and money pages, or the original ad link versus the final landing URL.

Escalate with evidence

Give developers, tracker owners, or partners a before-and-after view instead of vague bug reports.

Next steps

Follow the matching troubleshooting path

After running the tool, use these articles and repair guides to confirm the failure mode and decide what to fix next.

Need help fixing tracking or attribution?

If you're struggling with tracking issues, attribution problems, or broken postbacks, I offer professional tracking setup and audits.

Fix your tracking issues → Request free audit

Tools for Affiliate Tracking Debugging

Related tools

Related Tracking Tools

Campaign QA Report

Run one pre-launch report across redirects, click IDs, pixels, headers, and page health.

Open tool

Redirect Checker

Inspect redirect paths, status codes, and campaign landing behavior before launch.

Open tool

Click ID Extractor

Extract fbclid, gclid, ttclid, msclkid, and other tracking parameters from final landing URLs before you debug attribution or storage.

Open tool

URL Parameter Debugger

Decode long tracking links and spot missing macros or blank values.

Open tool