Fortinet FortiGuard provides web filtering to hundreds of thousands of enterprise firewalls. Unlike consumer antivirus that shows a warning users can click through, a FortiGate block means employees at affected companies simply cannot access your site at all. For B2B businesses, this directly translates to lost deals and support tickets from confused customers.
Why FortiGuard blocks are especially damaging
Consumer security products let users override warnings. Enterprise firewalls do not. When FortiGuard categorizes your domain as "Malicious" or "Phishing," any company running FortiGate appliances has your site completely inaccessible. IT departments rarely investigate individual blocks; they trust FortiGuard's classification. This means your sales team hears "your website is blocked" from prospects with no easy workaround.
How FortiGuard categorization works
FortiGuard uses both automated crawling and human review to categorize websites. Categories include legitimate ones like "Business," "Information Technology," and "Shopping," alongside blocked categories like "Malicious Websites," "Phishing," and "Spam URLs." Miscategorization often happens when:
- A new domain has insufficient history for accurate classification
- Your domain was previously owned by a malicious actor
- Shared hosting places you on an IP with bad neighbors
- Content changes triggered an automated re-categorization
- A competitor or bad actor reported your site maliciously
Step 1: Check your current FortiGuard rating
Visit the FortiGuard Web Filter Lookup tool and enter your domain. Note both the category and the rating. If you see "Malicious Websites," "Phishing," or "Spam URLs" as the category, that is what causes the block. Also note whether your domain shows a "recently rated" date; newly rated domains are easier to reclassify than long-standing classifications.
Step 2: Register for a FortiGuard account
Submitting a rating change request requires a free FortiNet Support account. Use a business email address for your registration. Submissions from generic email providers may receive lower priority or slower processing. If you already have a Fortinet support contract through your own firewall purchase, use those credentials instead for higher priority.
Step 3: Submit a recategorization request
Navigate to the FortiGuard Web Filter Rating submission form. Enter your URL, select the category you believe is correct (e.g., "Business," "Information Technology," "Finance"), and write a detailed justification. Include: what your company does, who your customers are, how long the domain has been active, and why the current classification is incorrect. If the domain was previously compromised and cleaned, explain the timeline and remediation.
Step 4: Follow up and verify
FortiGuard typically processes requests within 1 to 3 business days. You will receive a ticket number. Check the FortiGuard lookup tool again after receiving confirmation. Once updated, the new rating propagates to all FortiGate devices during their next database sync, typically within 24 hours. Ask affected clients to verify access is restored.
Dealing with slow or denied requests
If denied, FortiGuard provides the reason. Common issues: your site loads resources from a flagged external domain, or the automated re-scan still detects concerning patterns. Fix the issue and resubmit. For persistent problems, escalating through Fortinet partner channels or having an affected enterprise customer submit an internal request can accelerate processing.