Classify Crime & Justice Websites with URL Classification API

You need to automatically detect whether a website falls into Crime & Justice so you can block it on a school network, flag it for brand safety audits, or enrich a signup with compliant content tags. By the end of this guide you’ll call Klazify’s categorize endpoint, parse the category fields you need, and implement a yes/no decision for Crime & Justice that you can plug into your pipeline at scale.

Why Klazify fits Crime & Justice classification

Crime & Justice content shows up across news sites, government portals, advocacy groups, research institutes, and local organizations. It’s multilingual, dynamic, and often page-specific. Klazify provides:

• Accurate website categorization using AI: It analyzes on-page content, not just metadata, enabling precise identification when pages discuss criminal law updates, court announcements, or public safety reports.
• Global coverage: Crime & Justice topics appear in many languages; Klazify can analyze content internationally so your filters don’t miss non-English sources.
• Real-time classification: Because criminal justice topics shift quickly (new cases, rulings, advisories), real-time analysis helps reduce stale tags.
• Industry-level categories: Results are mapped to IAB taxonomy, which is widely used for brand safety and contextual ad targeting in this domain.
• Simple API integration: A single REST call returns categories along with company and domain signals your downstream systems can use.
• Compliance and filtering: Reliable categorization supports blocking or whitelisting policies where Crime & Justice coverage is regulated or sensitive.

With this setup, you can block specific categories on corporate networks, only allow placements on non-sensitive pages in brand safety scenarios, or enrich user-submitted domains with structured tags before they enter your CRM.

Concrete scenario: block, audit, or enrich Crime & Justice sites

Consider these common workflows:

• Blocking: A school or corporate proxy intercepts outbound requests and checks domain categories. If the content matches Crime & Justice according to your policy, the connection is blocked or requires approval.
• Brand safety: Your ad server looks up the publisher’s URL before bidding. If the returned categories include Crime & Justice signals, you can reduce bid weights or exclude the impression to maintain campaign suitability.
• Enrichment: Your signup form includes a company URL. You enrich the lead with Klazify’s category, company tags, and logo, flagging Crime & Justice for proper sales routing or compliance review.

In all cases, you’ll parse the categories array from a single POST call and combine it with your own policy definitions.

Call the categorize endpoint

Send the target URL in the JSON body with Bearer authentication. Below is a copy-pasteable example using a public Crime & Justice–related URL as input. Replace YOUR_API_KEY with your token.

curl -X POST "https://www.klazify.com/api/categorize" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url":"https://www.justice.gov/"}'

Klazify returns categories, IAB mappings when present, and additional domain and company fields you can use for logging, enrichment, or policy explanations.

Learn more on the product site: https://www.klazify.com.

Sample JSON response and what to read

Below is the exact example response format you’ll work with. Values are representative of a real site and illustrate the fields you’ll parse in your code.

{
"domain": {
"categories": [
{
"confidence": 0.92,
"name": "/Computers & Electronics/Consumer Electronics",
"IAB-632-596": "Consumer Electronics/Technology & Computing/Consumer Electronics"
},
{
"confidence": 0.89,
"name": "/Internet & Telecom/Mobile & Wireless/Mobile Phones"
}
],
"social_media": null,
"logo_url": "https://klazify.s3.amazonaws.com/2110787991611585019600ed5fb1d1300.04730104.png"
},
"success": true,
"objects": {
"company": {
"url": "https://www.apple.com/",
"name": "Apple",
"city": "Cupertino",
"stateCode": "CA",
"countryCode": "US",
"employeesRange": "100K+",
"revenue": 274515000000,
"raised": null,
"tags": [
"E-commerce",
"Consumer Electronics",
"Mobile",
"B2C"
],
"tech": [
"omniture_adobe_analytics",
"atlassian_confluence",
"successfactors",
"apache_apex",
"talend",
"oracle_peoplesoft",
"salesforce",
"stripe",
"dell_boomi_atomsphere",
"gigya",
"sage_50cloud",
"quickbooks",
"webmethods",
"apache_tomcat",
"alteryx",
"tibco_rendezvous",
"atlassian_jira",
"..."
]
}
},
"domain_registration_data": {
"domain_age_date": "1987-02-19",
"domain_age_days_ago": "13026",
"domain_expiration_date": "2030-02-20",
"domain_expiration_days_left": "123"
},
"similar_domains": [
"bestbuy.com",
"icloud.com",
"microsoft.com",
"macrumors.com",
"google.com",
"samsung.com",
"twitter.com",
"hp.com",
"bhphotovideo.com",
"dell.com"
]
}

How to use these fields for Crime & Justice workflows:

• domain.categories[].name and confidence: Your primary decision inputs. Build a rule that checks category names and uses confidence as a threshold gate.
• domain.categories[].IAB-632-596 (when present): Machine-readable mapping to IAB taxonomy for standardized controls (e.g., brand safety lists aligned to IAB categories).
• domain.logo_url: Helpful for UI in admin consoles or analyst tools reviewing blocked/flagged sites.
• objects.company.*: Enrich CRM records with company name, location, employee range, tags, and tech stack. This is useful when you decide to route certain Crime & Justice–related leads differently.
• domain_registration_data: Log domain age or expiry alongside risk decisions if your policy treats new domains more cautiously.
• similar_domains: Optional enrichment for analysts investigating related sites before whitelisting or blocking.

Python: map categories to a yes/no for Crime & Justice

The snippet below calls the same endpoint and turns the response into a binary decision for Crime & Justice. The policy example uses simple substring matching on category names and IAB mappings; in production, replace the terms list with the exact category labels you maintain internally for Crime & Justice.

import os
import requests

API_KEY = os.getenv("KLAZIFY_API_KEY", "YOUR_API_KEY")
API_URL = "https://www.klazify.com/api/categorize"

def is_crime_justice(categories, min_conf=0.75):
# Replace with the exact category labels your team maintains.
terms = ["crime", "justice"]
for cat in categories or []:
name = (cat.get("name") or "").lower()
# Some results include IAB mappings with a fixed key format
iab = ""
for k, v in cat.items():
if k.lower().startswith("iab-"):
iab = (v or "").lower()
break
if any(t in name for t in terms) and cat.get("confidence", 0) >= min_conf:
return True
if iab and any(t in iab for t in terms) and cat.get("confidence", 0) >= min_conf:
return True
return False

def categorize(url):
headers = {
"Authorization": f"Bearer {API_KEY}",
"Content-Type": "application/json"
}
resp = requests.post(API_URL, json={"url": url}, headers=headers, timeout=20)
resp.raise_for_status()
data = resp.json()
if not data.get("success"):
return {"decision": "unknown", "reason": "api_not_success", "raw": data}
cats = data.get("domain", {}).get("categories", [])
decision = "block" if is_crime_justice(cats) else "allow"
return {
"decision": decision,
"categories": cats,
"logo_url": data.get("domain", {}).get("logo_url"),
"company": data.get("objects", {}).get("company"),
"whois": data.get("domain_registration_data")
}

if __name__ == "__main__":
result = categorize("https://www.justice.gov/")
print(result["decision"])
# Optionally persist categories, confidence, and a cache of the decision per domain.

Implementation notes:

• Set min_conf based on your risk tolerance; keep a margin to reduce false positives.
• Prefer exact label matching to substrings when your taxonomy is finalized.
• If the policy is “audit-only,” return a third state like review rather than block.

What to do with the response in real systems

• Edge filtering: At proxy or gateway, cache the decision per domain and reuse it for subsequent requests. On cache miss, call the API asynchronously and default to your safe policy.
• Ad safety: Use categories and IAB mapping to route eligible impressions. Store last-seen categories per publisher domain so the bidder doesn’t call the API on every pageview.
• CRM enrichment: Append categories, company name, tags, and logo to the account record. Add a boolean field is_crime_justice with the decision for routing and reporting.

Operational guidance for scale

Caching per domain

• Key: Use the registrable domain (e.g., example.gov) or the exact URL if your policy is page-level.
• TTL: Set a TTL that balances freshness with cost and latency. Crime & Justice content can change; consider a conservative TTL and background refresh for high-traffic domains.
• Storage: A small KV store (e.g., Redis) works well for decision and raw categories.

Handling unknown or new domains

• Unknowns: If success is false or categories is empty, mark as unknown and apply a safe default (e.g., hold or restrict) until a recheck succeeds.
• Backoff and retry: On transient errors, retry with exponential backoff. Persist the last error and next retry time.
• Human review: For high-impact properties (major publishers, government portals), allow a manual override list in your system.

Batching and throughput

• Batching strategy: Fan out requests asynchronously and deduplicate in-flight lookups by domain to avoid stampedes.
• Queueing: Use a queue to absorb spikes from crawlers or traffic bursts.
• Rate limits: If you approach limits, implement client-side throttling and progressive backoff. Contact support if you need higher sustained throughput.

Latency and timeouts

• Set a per-request timeout and a circuit breaker. Fall back to cached or default decisions on timeout.
• Separate the sync path (decision needed now) from an async enrichment path (nice to have fields like logo_url, similar_domains, tech stack).

Mapping to your own taxonomy

• Create a one-to-many map from your internal Crime & Justice policy to Klazify category names and IAB taxonomy strings.
• Keep the map versioned. When adding or deprecating labels, deploy alongside code that evaluates decisions.
• Log all raw categories and decisions to enable later audits and to refine your mappings.

Which fields matter for Crime & Justice decisions

End-to-end workflow checklist

• Collect input URL or domain at the edge, bidder, or signup form.
• Normalize (punycode, strip fragments, decide page-level vs domain-level).
• Check cache; if miss, POST to https://www.klazify.com/api/categorize.
• Parse domain.categories, IAB mapping, and confidence.
• Compute is_crime_justice based on your mapping and thresholds.
• Emit a decision (block/allow/review) and store the evidence for audits.
• Refresh cache asynchronously with a TTL and handle unknowns with safe defaults.

Security, logging, and audits

• Redact API keys and encrypt secrets; pass Authorization via Bearer tokens only over HTTPS.
• Log the raw category list and confidence with each decision. Include a hash of the response for tamper-evident auditing.
• Maintain allowlists for essential domains where categorical blocking is not desired (e.g., mandatory civic resources).

Next steps

Set up your account at https://www.klazify.com, generate an API key, and run a few domains that commonly appear in your environment. Iterate on your mapping and confidence thresholds until your block/allow metrics meet policy targets.

Check out the full Klazify API documentation for the categorize endpoint details and response objects. When you’re ready to integrate into your pipeline, Try Klazify API for free to get your API key and start testing requests.

FAQ

• Should I classify the full URL or just the domain? For sites with mixed content, classify the full URL. If your policy applies at a domain level, cache at the domain level to reduce calls.
• What do I do if no categories are returned? Treat it as unknown and apply a safe default (e.g., hold or restricted). Schedule a retry and consider manual review for high-value properties.
• How do I keep my taxonomy in sync? Maintain a versioned mapping list for Crime & Justice labels and update it alongside your deployment. Log raw categories to measure drift.
• How can I reduce latency? Cache decisions, use async fan-out for batch processing, and set reasonable request timeouts with fallbacks to cached or default decisions.
• Can I use IAB taxonomy directly for ad safety? Yes. When a mapping is present in the response, align it to your brand safety rules to standardize decisions across inventory sources.

Ready to build? Create your free account at https://www.klazify.com, get an API key, and start classifying domains in minutes.