PricingDevelopersFAQContact Us
Log inStart free
Blocking Affects: link data quality

Fix “Landing page error” on Meta Commerce Manager

Meta's crawler can't reach the product page. 404, 500, redirect to non-product page, geo-restricted, or blocked by robots.txt. Items don't serve until reachable.

What you see in Meta Commerce Manager:

Landing page error

Meta's crawlers (facebookexternalhit, meta-externalagent) need to reach product pages. Robots.txt blocking, geo-restrictions, JavaScript-rendering issues, and expired authentication all cause unreachable-page flags.

The pre-rendering imperative is the modern lesson: JS-heavy pages don't render reliably for crawlers. SSR or static-generation for product content ensures crawlers see what users see. Pure client-side rendering creates fragility.

Top causes

  • 1

    Product page URL changed without feed update

  • 2

    robots.txt blocking facebookexternalhit or meta-externalagent

  • 3

    JavaScript-rendered pages without server-side rendering for crawlers

  • 4

    Geo-restrictions that block Meta's US-based crawlers

How to fix it

  1. 1

    Test each affected URL

    Open in incognito. Confirm 200 response and matching product content.

  2. 2

    Allow Meta's crawlers

    User-agent: facebookexternalhit and meta-externalagent must have /products/ access in robots.txt.

  3. 3

    Pre-render for JS-heavy sites

    If your product pages need JS to render content, use SSR or prerendering for the visible product info.

  4. 4

    Force a catalog refresh

    Items revalidate within 24 hours.

Related issues

Google Merchant Center

Landing page not crawlable

Googlebot can't reach the product page. The URL might be 404, redirected to a non-product page, blocked in robots.txt, or behind authentication. Affected items can't be served because users would land on a broken page.

Read more
Pinterest Catalog

Broken landing page

Pinterest's crawler can't reach the product page. 404, redirect to non-product page, blocked by robots.txt, or HTTPS issues. Items with broken landing pages can't serve as shopping pins.

Read more

Related fields

link

Related tools

url bulk validator redirect chain detector

FAQ

Which Meta user agents do I need to allow?

facebookexternalhit (older, for OG-style crawls) and meta-externalagent (newer, for catalog crawls). Allow both in robots.txt.

Last reviewed: 26 May 2026

Free plan · No card

Why wait? Try it free today.

Stop managing feeds manually. Start optimising with AI in 30 seconds.

  • Free plan, no credit card required
  • 1 brand, 1 feed, 100,000 products per feed
  • Full AI Product Optimisation, Rule Engine, and 200+ channel exports
  • Pay only for AI credits when you need them
Start freeSee pricing