IWF (Internet Watch Foundation)

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IWF minimise the availability of online sexual abuse content. Specifically:

  • Child sexual abuse content* hosted anywhere in the world.
  • Non-photographic child sexual abuse images hosted in the UK.

The majority of their work focuses on the removal of child sexual abuse images and videos.

IWF work internationally to make the internet a safer place. They help victims of child sexual abuse worldwide by identifying and removing online images and videos of their abuse. They search for child sexual abuse images and videos and offer a place for the public to report them anonymously and then have them removed. IWF are a not-for-profit organisation and are supported by the global internet industry and the European Commission.

IWF offer 4 relevant Services:

  • Image Hashlists
  • Keywords
  • Payment Brand Alerts
  • Domain Alerts

Key Features

Image Hash Lists

IWF teamed up with Microsoft to make it easy for companies to use our Image Hash List, with a cloud-based automated system. It’s impossible for most companies to manually scan every image that’s uploaded onto their platforms. The IWF Image Hash List does this for you in the background – without affecting your users’ experience.

It means you can compare anything from a single image to the millions of images uploaded through your platforms daily. The Image Hash list can flag illegal images already in your systems and prevent new ones being uploaded.


The IWF Keywords List is unique and not available anywhere else. It includes cryptic terms like letters and numbers associated with child sexual abuse content that other keyword lists wouldn’t recognise.

Our analysts actively search for child sexual abuse material on the internet, so we can include more keywords, including specific terms associated with child sexual abuse content, that other keyword lists wouldn’t detect.

How our keywords List can help you
Every month, we update our list of keywords and phrases to make sure it includes the most recent terms associated with criminal content.

You can use our list in lots of different ways, including to:

moderate chatter on gaming and social media platforms;
filter results on search engines to protect your users from accidentally finding criminal content while using your services;
check for files or domains that might contain criminal content and need further investigation.

Payment Brand Alerts

We know legitimate financial services are being used every day to process payments for child sexual abuse images and videos online. Every day we see trusted brands being used on these sites and shown alongside these images and videos. The payment services we see include both established and emerging digital currency brands.

We send Payment Brand Alerts to payment brands when we see child sexual abuse images or videos associated with their brands.

Domain Alerts

We see images of child sexual abuse hosted on legitimate domains every day. In 2017 alone, we identified more than 78,000 webpages hosting this content. Those webpages were found on 3,791 domains across the world.

We send our Domain Alerts to companies in the domain registration sector if we find child sexual abuse images or videos on domains registered through them. Every day, our analysts are identifying more content and seeking removal through sister hotlines, police and our industry Members across the world.

How our Domains Alerts can help you:
You’ll get brand protection through notifications:

We’ll send you content notifications when we see child sexual abuse images on one of your top-level domains.
You’ll receive information suitable to your needs:

We can give you historical assessment of websites you might be concerned about.
We’ll offer you personalised support on issues, for example patterns of abuse relating to a specific domain where we’re finding content.
You can sign up to monthly lists of cryptic keywords associated with paedophilic content to help you reduce the abuse of your brand.
We offer customised information on trends to support your needs, for example being more aware of potentially suspicious domain registrations to help you avoid the abuse of your services.

Inputs Accepted: Text,Image,Video
Services Offered: Advisory,Developer API,Human Moderators,AI,Hashing
Threats Detected: Sexually Explicit,Child Abuse
Product Link: <a href="https://www.iwf.org.uk/our-services" target="_blank">IWF (Internet Watch Foundation)</a>
Company: IWF

You can find out more information at: IWF (Internet Watch Foundation)