Why Your Amazon Associates Tag Keeps Disappearing

Short answer: Amazon Associates tags (?tag=yourstore-20) get stripped by CMS migrations, plugin "URL clean-up" features, copy-paste mistakes, redirect chains, AMP transformations, and mobile share buttons. Every missing tag = $0 commission for that click.

The 6 most common causes

1. CMS migration

Migrating from WordPress to Webflow, or upgrading a theme, often runs URL canonicalisation that strips query parameters. Your tag goes with them.

2. Plugin "URL clean-up"

SEO plugins (Yoast, RankMath) and performance plugins sometimes rewrite outbound links to strip parameters they consider "tracking junk". Whitelist tag, ref, and linkCode.

3. Manual copy-paste

An author copies an Amazon link from their browser address bar instead of from SiteStripe — no tag attached. This is the #1 cause for content teams without strict QA.

4. Redirect chains

If your link goes through multiple redirects (cloaked URL → URL shortener → Amazon), tags can be stripped at any hop.

5. AMP / Reader Mode transformations

Google AMP and Safari Reader Mode rewrite URLs. Some configurations drop tracking parameters. Test your AMP variants explicitly.

6. Mobile share buttons

If users share your page via the OS share sheet, they sometimes share the bare URL without your tag — and earn you nothing if they re-click their own copy.

How to detect missing tags at scale

PRG's Amazon-specific structural validation checks every Amazon link for a valid ?tag= parameter. Missing tags surface as warning_no_tag issues so you can fix them before launch — or at least before the next quarterly review.

See how PRG monitors Amazon Associates.