How to Fix 404 Affiliate Links: A Recovery Playbook

Short answer: Find every 404 first — most publishers have more broken affiliate links than they expect, because they build up over years of posts and nothing announces when one stops working. Prioritise by revenue impact, then either point the link to the merchant's current product, swap to an alternative, or remove it. Don't 301 affiliate links — it adds an extra hop where tracking can be dropped.

Why 404 affiliate links are different from regular 404s

A normal 404 hurts SEO and user experience. A 404 on an affiliate link hurts revenue every time a reader clicks it. Worse, you usually don't notice — your analytics show the click, but no conversion ever lands.

Step 1: Find every 404 in one pass

Manual checking doesn't scale past ~20 links. Use an automated scan or affiliate-specific monitoring tool to surface every broken link across your site in one go. Look for:

• Direct 404 responses from the merchant page
• Soft 404s (200 OK but a "product not found" page)
• Tracking-domain 404s (the amzn.to / shareasale.com redirect itself fails)

Step 2: Rank by revenue impact

If you have 50 broken links, fix the 5 highest-traffic ones first. PRG ranks every issue by estimated monthly revenue at risk so you don't waste an afternoon on a link no one clicks.

Step 3: Pick the right fix

1. Swap to the current product page. If the merchant simply moved the URL, update the link with your tracking tag intact.
2. Replace with an alternative product. If the product is discontinued, link to the closest substitute on the same merchant — or switch to a different network entirely.
3. Remove the link. If there's no equivalent, plain text is better than a dead anchor.
4. Don't 301 affiliate URLs. Affiliate networks are built to carry their own tracking through their own redirects — that is the whole mechanism, so the network's hop is not where parameters usually get lost. The risk comes from extra hops added on top: a link cloak, a URL shortener, a CMS that rewrites links, or a CDN rule. Every extra hop is another place a parameter can be dropped, which is why a 301 in front of an affiliate link is best avoided.

Step 4: Set up monitoring so it doesn't recur

Most 404s come back. Set up continuous monitoring so the next time a merchant changes a URL, you find out in hours — not after a quarterly audit.

Related: 403 vs 404 vs Redirect Errors · Monitoring Checklist