Your website works fine for you, but visitors using Kaspersky antivirus or Kaspersky Internet Security see a block page. Or you spot a Kaspersky detection on your VirusTotal report.
Kaspersky is one of the most widely installed security products globally. A false positive in its database can cut off a meaningful part of your traffic.
Key takeaways
- Kaspersky's web protection and its VirusTotal verdict come from the same threat database.
- False positive reports go through Kaspersky's official submission portal.
- Complete requests with clear evidence are usually handled within a few days.
- After Kaspersky delists you, rescan on VirusTotal to update the public result.
Where Kaspersky blocks appear
Kaspersky's URL reputation data powers multiple products: Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Endpoint Security for businesses and the Kaspersky Safe Browsing browser extension. The same database also feeds into VirusTotal.
A single listing therefore blocks your site in consumer PCs, corporate networks and the most popular multi-engine scanner on the internet. More details on our Kaspersky vendor page.
Why Kaspersky flags clean websites
Common false positive triggers include:
- Login forms or payment pages that resemble known phishing templates.
- JavaScript obfuscation or ad scripts that look like malicious code to heuristic engines.
- A previous compromise that left a listing behind after cleanup.
- Shared infrastructure: an IP or CDN range associated with malicious activity.
- Downloads such as installers or executable files that fail reputation checks.
How to submit a false positive report
Kaspersky accepts false positive disputes through its official portal:
- Confirm the detection is current by checking VirusTotal or testing with a Kaspersky product.
- Make sure your site is clean. If you had a compromise, complete the cleanup first.
- Go to Kaspersky's false positive submission page and select the appropriate category (URL or website).
- Provide the exact URL, a description of your business and why you believe the verdict is wrong.
- Submit and note the ticket number for follow-up.
Our Kaspersky false positive removal guide explains each step of the form and what to write for the fastest review.
How long does the review take?
Well-documented requests are typically processed within two to five working days. If the request is rejected, Kaspersky usually explains which element on the page triggered the detection. Fix that element and submit again, referencing your earlier ticket.
After confirmation, rescan your domain on VirusTotal to make sure the public report reflects the change.
What if Kaspersky is not the only vendor?
When multiple vendors flag your domain, fix them in priority order: browser blocklists first, then major antivirus vendors like Kaspersky, Bitdefender and ESET, then threat feeds and web filters. Our security blacklists overview explains the full prioritisation.
Frequently asked questions
Do I need a Kaspersky account to report a false positive?
No. The submission form is publicly available.
Will Kaspersky removal also fix VirusTotal?
Once Kaspersky updates its database, a new VirusTotal scan will show the clean verdict.
Can individual users whitelist my site?
Kaspersky users can add URL exceptions, but that only helps those individual devices. You need Kaspersky to remove the listing so all users are unblocked.
Does a Kaspersky listing affect my email?
Kaspersky's URL filter can block email links, and if Kaspersky flags your domain, email clients with its plugin may flag outbound links as dangerous.