Netcraft Offers Free Tools to Stay Safe Online
Netcraft provides threat data and takedown services to organizations around the world, but our tools aren’t just for enterprise.
We offer a set of free apps and browser extensions that help anyone block malicious sites and report new threats. They’re straightforward, lightweight, and built on the same intelligence we use to protect our customers.
They’re also part of a broader effort: making it easier for individuals to protect themselves—and contribute to a safer web in the process.
Powerful Tools, No Subscription (or Cost) Required
Our apps and browser extensions block malicious websites using the same threat intelligence we provide to enterprise customers. The difference? You don’t need a license to use them.
You get:
· Real-time protection against phishing, credential skimmers, fake shops, crypto miners, and more
· Reporting tools to flag suspicious URLs (you can even win prizes for it)
· Detailed site reports that reveal hosting location, ownership, first seen date, and more
All of this is backed by Netcraft’s world-class threat feed—the same one licensed by browser vendors and relied on by global security teams.
Mobile Protection for Android and iOS
Stay safe online — wherever you go. Netcraft’s mobile apps bring powerful threat protection to your device, whether you use Android or iOS.
On Both Platforms
Our apps for Android and iOS block access to known malicious sites using the full Netcraft threat feed. You'll benefit from:
Real-time protection in major browsers and apps (including Chrome, Firefox, and Safari)
Continuous updates from our extensive intelligence network
Clear stats on which threats are blocked
The ability to report suspicious content directly
iOS: Extra Privacy and Advanced Tools
In addition to core protections, the iOS app offers extra capabilities thanks to Apple’s content blocking framework and device integrations:
Enhanced privacy (we never see your browsing data)
Curated list of ~300,000 threats, refreshed regularly
QR code scanner that checks links before you open them
SMS auto-reporting for suspicious messages from unknown senders
Siri Shortcuts for quick safety checks and advanced automation:
“Is this site safe?”
“When did Netcraft first detect this domain?”
“Where is this site hosted?”
Extensions for Your Browser and Email
Netcraft’s free extensions are available for Chrome, Firefox, Edge, and Opera: View threat data, block malicious sites, and report suspicious URLs
Firefox users get an added layer of protection with credential-leak detection, which can identify malicious code trying to skim your login details—even if the site hasn’t been reported yet.
Start Using Netcraft Today
Explore the full range of free protection tools at netcraft.com/apps-extensions. Whether you’re reporting threats, protecting your family, or just browsing safely—Netcraft helps you do it with confidence.
Join our mailing list for regular blog posts and case studies from Netcraft.
