How Categorify works?
Categorify is built and maintained by CleanBrowsing team and powers the Free and Paid DNS filters. Domains are crawled daily and multiple indicators like domain freshness, word density, keywords
and a range of other flags are used to categorize the domain names. Changes done here are propagated to CleanBrowsing on a daily basis.
Our domain and IP address data is also stored on DNSArchive for long term historical DNS lookups.
Is the Category wrong?
What makes Categorify so unique is that it uses an open-source, crowd-sourcing, approach to maintaining the integrity of it's categorizations. This categorization engine powers millions of devices, users, around the world and we are welcome to any feedback you have. You can be part of the solution by using our Recategorization engine to help correct errors when you see them. All inputs are reviewed by the system, and our team of engineers.
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Understanding our Categories & Ratings
Every website was crawled and categorized based on their content, domain name and how safe they are for visitors. We looked for nudity, violent content, abusive language, explicity materials and other signals to rate them into one of the four safe rates:
PG: Website is safe for all audiences. We did not identify any nudity, violence or abusive language. Some sites that provide the proper parental control are also labeled as PG. For example, Netflix is rated PG, even though it has some movies that are not suitable for everyone.
PG-13: Website not recommended for kids under 13. They may have some nudity or violent content - some discretion is advised.
R & SFW: Websites that contain adult-only content, but are relatively safe for a work environment (no graphic content).
R & NSFW: Websites with adult content that is not safe for a work environment (pornographic sites mostly).
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Website Categories
In addition to their rates, we also categorize the site in one of these main categories:
Adult/Pornography
Entertainment
Videos
Movies
Music
Online Radio
Video Streaming
Images
Poems
Literature
News
Weather
Weapons
Financial
Legal
Government
Sports
Educational
Arts & Fashion
Clothing
Humor
Hotels & Resorts
Restaurant
Park & Attractions
Engineering
Software Development
Industrial
Information Security
Cloud Service/Hosting
Cloud Storage
Email Provider
Torrents
P2P File Sharing
Proxy & VPN
Search Engine
Social Network
Internet Portal
Online Shopping
Shopping
Jobs & Careers
URL Shortners
Technology
Gaming
Gambling
Marketing
Travel
Advertising & Tracking
Instant Messaging
CDN Resource
API Endpoint
Network Endpoint
Business
Real Estate & Home Services
Pets & Animals
Non-Profit
Politics
Photography
Health
Family
Personal
Religion
Community & Forums
Dating
Automotive
Parked or Unused
Not Configured
Clean Browsing
Malicious/Blacklisted
Hate Speech
Pirated Software
Lingerie
Alcohol
Drugs
Academic Fraud
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API Access / Developer Mode
Our API gives access to all the results (categories, ratings and keywords) and is available via the api URL. We will return a HTTP 200 with a json-encoded result on success or 400 HTTP error code if you provided an invalid domain or we are unable to process the request for any reason.
Please note that our API have a restriction of 200 queries per day. If you need more, please contact us and we will provide an API key with higher limits.
We believe that an example is worth a thousand words, so two examples should be enough:
Success result:$ curl -D - https://categorify.org/api?website=google.com
Error result:$ curl -D - https://categorify.org/api?website=invalidomain
If you have any questions about the API, let us know. -
Terms of use
Our API has a restriction of 200 queries per day. Please do not perform automated queries to our website without the use of the API. If you are using our results, you have to link to Categorify and provide credit of the utilization.
If you need a higher API limit or have special requirements, contact us at sales@cleanbrowsing.org.