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Last updated: December 1, 2025
If you’re suddenly unable to share a link to your website on Facebook—with your post rejected or simply disappearing—your domain or URL may be blocked by Facebook. This can immediately impact traffic, credibility, and marketing performance.
Here’s an updated, practical guide that walks you through diagnosing, resolving, and preventing URL blocks on Facebook.

Why Facebook may block your URL

Facebook restricts URLs for multiple reasons, including:

• Violations of Meta’s Community Standards (spam, misleading content, harmful claims).

• Automated detection of suspicious patterns such as mass posting or redirect chains.

• User reports or algorithmic flags.

• Security or technical issues on your website, including malware, expired SSL certificates, inaccessible resources, or broken metadata.
  A common blind spot: Facebook’s systems often continue blocking a domain even after the root cause is fixed, until the crawler re-indexes the site or the block is manually reviewed.

How to diagnose whether your URL is actually blocked

Before assuming a full restriction, run these checks:

• Use Facebook’s Sharing Debugger: Paste in your URL. If you see “URL not allowed,” “This URL goes against community standards,” or a similar message, your domain is blocked. If instead you see missing previews or metadata errors, the issue may be purely technical. 

• Check Domain/Page Quality in Meta Business Manager: Look for active violations, domain-level flags, or page restrictions. These can shed light on whether the issue is behavioral, content-related, or systemic. 

• Run a website security scan: Ensure there’s no malware, compromised scripts, or redirect injections. Facebook’s blocks often trace back to a security issue that site owners didn’t know existed.

How to unblock your URL on facebook

1. Resolve any issues on your website

• Fix malware, remove broken or suspicious redirects, and ensure HTTPS is functioning.

• Clean up potential standards-violating content.

• Reduce repetitive link-sharing patterns across multiple pages or groups.

2. Request a review from Facebook

• Use the “Request Review” or “Let us know” button in the Sharing Debugger.

• Clearly explain what has been fixed or why you believe the block is in error.

• If you use Meta Ads, submit through Ads Support for faster turnaround.

3. Monitor and re-test

• Continue testing the URL on your own timeline, in Messenger, and through the Sharing Debugger.

• Resubmit review requests if the block persists.

• Document any improvements made to help Meta Support escalate your case.

How to prevent future URL blocks

• Avoid mass-posting behavior that can appear spammy.

• Keep your site secure and regularly monitored.

• Minimize redirect chains and overly complex tracking parameters.

• Review domain status in Meta Business Manager quarterly.

• Maintain strong ad account health (if using Meta Ads).

When you may need expert support

If multiple URLs or subdomains are blocked, or if the problem persists despite multiple reviews, consider:

• A full security audit.

• A website rebuild if the domain reputation is significantly damaged.

• Direct support escalation through a Meta agency partner or ads representative.

How PetDesk Marketing can help manage and protect your website

Keeping your website healthy, secure, and aligned with best practices is essential not only for search rankings and client trust, but also for ensuring platforms like Facebook treat your domain as reputable.
PetDesk Marketing provides comprehensive website management designed specifically for veterinary practices. Get a demo or take an online tour to learn how our team can support your practice's online needs—without you having to lift a finger.