# Working with Categorization API
##### Purpose of the Categorization API
The Categorization API is designed to provide developers and third-party systems with a quick and easy way to get data from the SafeDNS database of categorized sites. The API is designed for integration with other systems where site category verification is required (filtering systems, advertising systems, etc.). The categorization API uses the standard JSON specification to process requests. The API is not intended to be accessed by end users of the integrated system. The API must be requested from an intermediate server of the integrated system.
The performance of the API is approximately 1k requests per second.
The database of categorized SafeDNS sites currently includes more than 106 million unique domains in more than 60 categories.
In order to increase the processing speed, the data provided by the Categorization API can be cached on the side of the integrated system for a period of no more than 12 hours.
---
##### Accessing API
To access API you should use the following host: **x.api.safedns.com**
---
##### Authorization
Requesting x.api.safedns.com you need to use Basic Authorization. A special HTTP Authorization header should be passed in each request. The string `:` passed in the Authorization header is encoded by the **base64** method. Herewith, the **Basic** should be specified as the authorization method.
Authorization header example:
```JSON
Authorization: Basic Ndc2MDE4N2Q4MWJjNGI3Nzk5NDc2YjQycjUxMDM3MTM6ZjI1YmViZjk5MWZmNDE5ODkzZGIyNTU3MjhlNGUxZGU=
```
CURL request with authorization:
```HTML
curl https://x.api.safedns.com/domain/www.website.com -H "Authorization: Basic AUTHORIZATION_HEADER"
```
PowerShell example with authorization:
```Powershell
Invoke-WebRequest -Uri https://x.api.safedns.com/domain/www.website.com -Headers @{ Authorization = "Basic "+ [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes(":")) }
```
---
##### Getting a list of site categories
Request:
```HTML
GET https://x.api.safedns.com/domain/www.website.com
```
will return an answer in JSON format:
```JSON
{
"category": [49, 59],
"bad": false,
"category_name": ["Computers & Internet", "Business"]
}
```
---
##### Getting a list of URL categories
Request:
```HTML
GET https://x.api.safedns.com/url/http://www.website.com/path/to?arg=val
```
will return an answer in JSON format:
```JSON
{
"category": [49, 59],
"bad": false,
"category_name": ["Computers & Internet", "Business"]
}
```
---
##### Getting a list of categories
Request:
```HTML
GET https://x.api.safedns.com/catgroups
```
will return an answer in JSON format:
```JSON
[
{
"Illegal Activity": {"6": "Drugs",
"7": "Tasteless",
"8": "Academic Fraud",
"10": "Hate & Discrimination",
"11": "VPN, Proxies & Anonymizers",
"19": "Child Sexual Abuse (IWF)",
"31": "German Youth Protection",
"65": "Child Sexual Abuse (Arachnid)"}
},
{
"Adult Related": {"13": "Adult Sites",
"14": "Alcohol & Tobacco",
"15": "Dating",
"16": "Pornography & Sexuality",
"17": "Astrology",
"18": "Gambling"}
},
{
"Bandwidth Hogs": {"24": "Photo Sharing",
"20": "Torrents & P2P",
"21": "File Storage",
"22": "Movies & Video",
"23": "Music & Radio"}
},
{
"Time Wasters": {"5": "Online Ads",
"26": "Chats & Messengers",
"27": "Forums", "28": "Games",
"29": "Social Networks",
"30": "Entertainment"}
},
{
"General Sites": {"32": "Automotive",
"33": "Blogs",
"34": "Corporate Sites",
"35": "E-commerce",
"36": "Education",
"37": "Finances",
"38": "Government",
"39": "Health & Fitness",
"40": "Humor",
"41": "Jobs & Career",
"42": "Weapons",
"43": "Politics, Society and Law",
"44": "News & Media",
"45": "Non-profit",
"46": "Portals",
"47": "Religious",
"48": "Search Engines",
"49": "Computers & Internet",
"50": "Sports",
"51": "Science & Technology",
"52": "Travel",
"53": "Home & Family",
"54": "Shopping",
"55": "Arts",
"56": "Webmail",
"57": "Real Estate",
"58": "Classifieds",
"59": "Business",
"60": "Kids",
"63": "Trackers & Analytics",
"67": "Online Libraries",
"72": "Generative AI",
"100": "Contentless Domains"}
},
{
"Security": { "73": "DNS-tunneling",
"1": "Newly Registered Domains",
"3": "Malware",
"4": "Phishing & Typosquatting",
"9": "Parked Domains",
"12": "Botnets & C2C",
"66": "Cryptojacking",
"70": "DGA",
"71": "Ransomware"}
}
]
```
---
##### Getting usage stats
Method **total\_count** returns a summary of detailed stats for the requested period.
USERNAME and TOKEN are generated separately for the stats service by SafeDNS Manager or Tech Support.
Request:
```shell
curl --location --request POST 'https://sdk.safedns.com/stats_x/total_count' \
--header 'Authorization: Bearer TOKEN' \
--header 'Content-Type: application/json' \
--data-raw '{
"user": "USERNAME",
"start_date": "2023-01-01",
"end_date": "2023-05-31"
}'
```
will return an answer in JSON format:
```JSON
{
"total_requests": 10600,
"billed_requests": 9600,
"categorized_domains": 5600
"nx_domains": 4000,
"unknown_domains": 910,
"bad_requests": 90
}
```
‌Method **detailed\_count** returns detailed stats for the each day of the requested period.
USERNAME and TOKEN are generated separately for the stats service by SafeDNS Manager or Tech Support.
Request:
```shell
curl --location --request POST 'https://sdk.safedns.com/stats_x/detailed_count' \
--header 'Authorization: Bearer TOKEN' \
--header 'Content-Type: application/json' \
--data-raw '{
"user": "USERNAME",
"start_date": "2023-01-01",
"end_date": "2023-05-31"
}'
```
will return an answer in JSON format:
```JSON
{
"2023-01-01": {
"total_requests": 10600,
"billed_requests": 9600,
"categorized_domains": 5600
"nx_domains": 4000,
"unknown_domains": 910,
"bad_requests": 90
},
"2023-01-02": {"total_requests": 22600,
"billed_requests": 21600,
"categorized_domains": 15000
"nx_domains": 6600,
"unknown_domains": 130,
"bad_requests": 870
},
"2023-01-02": {...},
}
```
---
##### Responses
If a domain is categorized, API returns code 200, category name and its number.
```shell
curl --user : https://x.api.safedns.com/domain/safedns.com
```
```JSON
StatusCode : 200
StatusDescription : OK
Content : {"category": [49], "bad": false, "category_name": ["Computers & Internet"]}
```
If a domain does not exist, API returns code 206, category 0 and non-existing domain.
```shell
curl --user : https://x.api.safedns.com/domain/does.not.exist
```
```JSON
StatusCode : 206
StatusDescription : Partial Content
Content : {"category": [0], "bad": false, "category_name": ["Non-Existing Domain"]}
```
If a domain is not categorized, API returns code 404 without JSON.
```shell
curl --user : https://x.api.safedns.com/domain/com
```
```
curl : The remote server returned an error: (404) Not Found.
```