403 vs 404 vs Redirect Errors on Affiliate Links: What They Mean

Short answer: A 404 means the page doesn't exist, a 403 means access is blocked, and redirect errors mean the link isn't reaching its destination properly. Each one affects your affiliate revenue differently.

Common HTTP Error Codes on Affiliate Links

404 Not Found

What it means: The page at this URL no longer exists. The partner may have changed their URL structure, removed the product, or ended the campaign.

Revenue impact: High — every click to this link results in zero conversions.

Fix: Update the link to the correct URL, or replace it with an alternative offer.

403 Forbidden

What it means: The server is actively blocking access. This can happen when the partner restricts access by geography, IP, or referrer.

Revenue impact: High — affected users see an error page instead of the offer.

Fix: Contact the partner to understand the restriction. You may need a different tracking link or landing page.

500 Internal Server Error

What it means: The partner's server is experiencing an error. This is usually temporary.

Revenue impact: Medium — the issue may resolve itself, but extended outages cost revenue.

Fix: Monitor the link. If the 500 persists for more than a few hours, contact the partner.

301 / 302 Redirects

What it means: The link redirects to another URL. This is normal for affiliate tracking, but excessive or misconfigured redirects can strip tracking parameters or lead to unexpected destinations.

Revenue impact: Variable — check whether tracking parameters survive the redirect chain.

Fix: Follow the full chain and verify the final destination and parameter integrity.

Redirect Loop

What it means: The link enters an infinite redirect cycle and never reaches a destination.

Revenue impact: Critical — no user can reach the offer.

Fix: Contact the partner or network immediately. This is usually a misconfiguration on their end.

How to Monitor for These Errors Automatically

Partner Revenue Guard's automated monitoring checks for all of these errors on every scan and alerts you ranked by estimated revenue impact.