Affiliate Links on WordPress: Plugins, Redirects, and Silent Breakage
WordPress affiliate links break in two distinct layers: the redirect plugin layer (Pretty Links, ThirstyAffiliates, and /go/ slugs that can be deleted, misconfigured, or orphaned by a plugin change) and the destination layer (the affiliate link inside the redirect, which rots like any other). A site audit has to test both: the /go/ slug resolving is not evidence the affiliate link inside it still works.
The two-layer failure model
Most serious WordPress affiliates cloak links behind their own domain: yoursite.com/go/product or /recommends/product. That indirection is smart — you can update one redirect instead of fifty posts — but it doubles the failure surface. The redirect can break (deleted slug, plugin deactivated, htaccess conflict) and the target can break (closed program, dead product page).
The nastiest version: the redirect plugin gets removed or a slug deleted, and WordPress serves your 404 page — or worse, the homepage — for every /go/ link across your entire archive at once. Afterlink specifically detects vanity redirects that land back on your own homepage.
WordPress-specific gotchas
- ▸Cached pages can serve old link HTML long after you fixed a post — purge caches after link updates.
- ▸Some SEO/security plugins add redirects that strip query strings — instant death for parameter-tracked programs (rfsn, fpr, a_aid).
- ▸Old page builders and imported content hide links in shortcodes and custom fields that text searches miss.
- ▸Auto-linking plugins (including retired ones) may have injected affiliate links you don't remember creating.
Auditing a whole site
Crawling beats searching: a crawler finds every outbound link in rendered pages regardless of how it was inserted. Afterlink crawls your site, extracts every affiliate link (cloaked ones included — it follows your /go/ redirects to see what's really inside), and validates each chain end-to-end.
Frequently asked questions
Are cloaked links (/go/) bad for SEO?
No — used honestly with proper disclosure, redirect links are standard practice. Their real risk is operational: they add a failure layer you have to monitor.
My redirect plugin shows the link as active — can it still be broken?
Absolutely. The plugin only knows your redirect exists; it has no idea whether the affiliate link inside it still tracks or the destination page still exists. That requires following the full chain.
Other platforms
Check every affiliate link you've ever published
Wherever you publish, the links are the revenue layer — and they rot everywhere. Afterlink scans your entire YouTube channel or website, follows every redirect chain, and alerts you the day a link breaks.
Run a free scan