Mobile Phishing Protection

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Screenshot of Netcraft’s Android app blocking a phishing website.

By analysing log files recovered from phishing sites, Netcraft found that over two thirds of visits to phishing sites are from mobile devices. Android and iOS use Google’s Safe Browsing API to block phishing attacks. However, Google’s Mobile Safe Browsing feed is not identical to the feed used in desktop Chrome. In a study performed in 2018, Netcraft found that only a fraction of the blocks are made available to mobile users.

Protection for consumers

Netcraft’s anti-phishing app for Android and iOS devices makes use of Netcraft’s industry-leading anti-phishing feed to instantly block access to phishing sites discovered by Netcraft.

Over 60.3 million million unique phishing sites have been detected and blocked by Netcraft’s system to date [April 2019]. Netcraft’s anti-phishing feed is used by all major web browsers and many of the leading anti-virus, content filtering, web hosting and domain registration companies.

Get it on Google Play Available at Amazon Appstore Download on the App Store


  • Block phishing attacks while browsing the web.
  • Defeat SMS phishing (“smishing”) attacks.
  • Report newly-discovered phishing attacks to help protect other users, and receive prizes for doing so.
  • View statistics to see how the app is protecting you.

Netcraft’s app provides free protection for a 28 day trial period, after which a small monthly or annual subscription fee is required. The app can be used to report phishing sites to Netcraft without a subscription.

Protection for businesses

Netcraft provides a number of opportunities for your company to integrate Netcraft’s anti-phishing services into your products and internal security efforts to protect both customers and employees.

Protecting your employees

Alongside Netcraft’s browser extension, Netcraft’s app can be used to provide comprehensive protection against phishing attacks on all company-managed devices, including mobile phones and tablets.

Site licences

Site licences allow you to unlock the app’s protection on multiple mobile devices, using a single subscription at a discounted price. Simply enter your site licence code in the app on each device to secure it against phishing attacks.

Branded apps

Netcraft can develop a bespoke versions of the app that include your company’s branding and other custom features upon request. Branded apps can be privately transferred to you for installation on your devices or made available publicly in app stores.

Protecting your customers

Provide protection to your customers, and no cost to them, against phishing attacks impersonating your company.

App collaboration

App collaboration is the simplest way to provide phishing protection to your customers. Netcraft’s app can detect that your company’s app is installed on the user’s device. If so, the app automatically unlocks its anti-phishing functionality, which normally requires a subscription, at no cost to the user. This allows you to protect your customers without making any changes to your own app, provided your users also install Netcraft’s app.

Library integration

The technology underpinning Netcraft’s anti-phishing app is also available as a library suitable for embedding in Android and iOS apps, allowing you to provide phishing protection to all customers who use your app. Unlike app collaboration, installation of Netcraft’s app is not required.

The Android library uses accessibility services, available in Android 4.3 or later, to block access to Netcraft’s entire phishing site feed in popular web browsers, including Chrome and apps “powered by Chrome”.

The iOS library uses Apple’s Content Blocking API, available in iOS 9 or later, to block access to up to 50,000 phishing sites targeting your organisation in Safari and apps that use the Safari View Controller library (this limit is imposed by Apple).

Technical documentation and support for integrating the library in your app is provided.

More information

Please get in touch by email at or phone +44 (0) 1225 447500 for more information.