Microsoft flagged my website — how removal works
CATALOG ENTRY VERIFIED 2026-09-21
To clear a Microsoft Defender SmartScreen false positive, open the blocked site in Microsoft Edge, select More information on the red warning page, then 'Report that this site doesn't contain threats' and complete the feedback form as the site owner. Microsoft's SmartScreen Reputation Group confirms by email; reply to that message if the case is urgent. Microsoft states no turnaround.
| List type | antivirus engine |
|---|---|
| Channel | Web form |
| What unflagdomain does | Prepares the text and the exact place to submit it |
| Step-by-step guide | Microsoft SmartScreen Blocking My Website: How to Report a False Positive |
| Longer read | — |
What Microsoft is
Microsoft Defender SmartScreen protects Edge and Windows. It rates URLs by reputation, so new and rarely visited domains can be warned about without any malicious content; site owners report from the block page in Edge.
What a Microsoft flag looks like
A red Edge page — 'This site has been reported as unsafe' — or a SmartScreen warning on a file download.
Why clean sites end up flagged here
- A past compromise — an injected redirect, spam pages, a phishing directory — that the engine recorded and has not re-scanned since the cleanup.
- A file hosted on the site (an installer, an archive) that matched a signature, which flags the URL that served it.
- A verdict copied from another engine's feed, so the flag appears here days after the original source.
- A genuinely clean page that the engine's heuristics read as suspicious: obfuscated JavaScript, a login form, a redirect chain.
How a removal request reaches Microsoft
This vendor takes website reports only through its own web form, usually with a CAPTCHA and sometimes an account, so a person has to submit it. The form is the only path into its review queue.
The exact portal, the fields it asks for, a template and the reasons requests get rejected are in the Microsoft false-positive guide.
What unflagdomain does for this vendor
When a scan shows this vendor flagging your domain, your dashboard gets a prepared card for it: the vendor's form, the exact URL, and the text to paste. You submit it; the vendor replies to you.
This is one of 133 vendors in the catalog. A scan shows which of them flag a domain right now; the €39 dispatch covers every one that does.
Microsoft is an antivirus URL-reputation system: its verdict on a domain reaches everyone who runs that product, and it surfaces through multi-engine scanners such as VirusTotal, where other products and firewalls read it. A past compromise — an injected redirect, spam pages, a phishing directory — that the engine recorded and has not re-scanned since the cleanup. A file hosted on the site (an installer, an archive) that matched a signature, which flags the URL that served it.
Clean the site first and verify it from outside. Then this vendor takes website reports only through its own web form, usually with a CAPTCHA and sometimes an account, so a person has to submit it. The form is the only path into its review queue. The Microsoft guide on this site has the portal, the fields and a template.
No stated turnaround. Microsoft says to wait for a confirmation email from the SmartScreen Reputation Group and to reply to it if the issue is urgent. Not measured per vendor yet. In our most recent measured dispatch, all 12 flagging vendors had cleared within 15 days.
When a scan shows this vendor flagging your domain, your dashboard gets a prepared card for it: the vendor's form, the exact URL, and the text to paste. You submit it; the vendor replies to you. We guarantee the request is sent or prepared; Microsoft decides the outcome.