Your organization mandated AI tool blocking — now you need a domain list that actually covers the landscape. Import 17,410+ classified AI-tool domains into any major firewall platform in under an hour, with daily automated updates.
Every next-generation firewall ships with URL filtering categories — but those categories were built for gambling, malware, and adult content. They were never designed to classify the fast-growing long tail of AI tools.
We deliver the AI domain blocklist in the native format each platform expects. No conversion scripts, no manual reformatting, no maintenance burden.
Hosted EDL that your NGFW polls automatically — attach it to a security policy rule and every AI-tool domain is blocked at the session level. Updates propagate within the refresh interval you set, typically five minutes.
Create a web filter profile with a custom URL category referencing your AI domain feed, and the UTM appliance enforces the block via firewall policy. The threat feed connector refreshes the list automatically on your chosen schedule.
Upload AI-tool domains as a custom blocklist in your DNS filtering platform and associate it with a DNS policy. The platform blocks resolution before any connection is established and reports which users hit blocked domains.
Add AI-tool domains as a custom URL category in your cloud secure web gateway (SWG) and reference it in a URL filtering rule. Every user connected to the SWG is covered regardless of location — cloud-native, no on-prem infrastructure required.
Point your open-source firewall's DNS blocklist plugin at our hosted domain list URL to sinkhole-block every AI-tool domain at the DNS level. Works transparently for all network clients with no proxy configuration needed.
Import AI-tool domains as URL indicators with a block action in your endpoint protection platform. Enforce via endpoint management or network protection across managed Windows, macOS, and mobile endpoints regardless of network.
Static blocklists decay within days — a list accurate in January is missing hundreds of new tools by March. Automate with a scheduled job that pulls the latest database from the API every day, so the infrastructure handles updates without manual intervention.
A daily cron job downloads the database CSV, extracts the domain column, and writes the plain-text list your firewall or resolver consumes. Pre-formatted EDL exports are also available from your account downloads page — host either file internally (e.g. https://edl.yourcompany.internal/ai_domains.txt) for appliances that poll a feed URL.
# Example: cron job to fetch the latest AI blocklist and reload your firewall # Runs daily at 2 AM: downloads the CSV, extracts the domain column, reloads DNS 0 2 * * * /usr/bin/curl -s -H "X-API-Key: YOUR_API_KEY" \ "https://www.aitoolsblocklist.com/api/database/?action=download_database" \ | tail -n +2 | cut -d, -f1 > /etc/blocklists/ai-tools.txt \ && /usr/sbin/unbound-control reload
Our REST API exposes database metadata for programmatic integration. Poll the metadata endpoint, compare last_updated_unix with your saved value, and re-download only when the database has changed — then diff locally to see what was added or removed.
# Check whether the database changed since your last sync curl -H "X-API-Key: YOUR_API_KEY" \ "https://www.aitoolsblocklist.com/api/database/?action=database_info" # Response is JSON metadata including "last_updated_unix" # If last_updated_unix is newer than your saved value, re-download and diff curl -s -H "X-API-Key: YOUR_API_KEY" \ "https://www.aitoolsblocklist.com/api/database/?action=download_database" \ | tail -n +2 | cut -d, -f1 | sort > /tmp/ai-tools-new.txt comm -13 /etc/blocklists/ai-tools.txt /tmp/ai-tools-new.txt # added comm -23 /etc/blocklists/ai-tools.txt /tmp/ai-tools-new.txt # removed
A PAC file routes AI-tool domains through a blocking proxy for remote workers and BYOD devices not behind the corporate firewall. Deploy it via Group Policy or MDM profile.
// PAC file snippet — block AI tool domains via proxy sinkhole function FindProxyForURL(url, host) { var aiDomains = [ "openai.com", "chat.openai.com", "claude.ai", "anthropic.com", "gemini.google.com", "bard.google.com", "midjourney.com", "jasper.ai", // ... full list from our feed ]; for (var i = 0; i < aiDomains.length; i++) { if (dnsDomainIs(host, aiDomains[i])) { return "PROXY block.internal:8080"; } } return "DIRECT"; }
Every feed format draws from the same classified corpus — scanned, categorized, and refreshed on a 24-hour cycle.
Not every organization wants a blanket block on all AI tools — some teams need code assistants while others must be blocked from AI writing tools. Our 18-category taxonomy enables per-department, per-category granularity.
The implementation workflow is the same regardless of firewall vendor — only the specific menus and CLI commands differ. Follow this universal workflow, with platform-specific guides linked throughout.
Determine the ingestion method your firewall supports: EDL (next-gen firewalls), external threat feed (UTM appliances), destination list (DNS filters), DNSBL (open-source firewalls), custom URL category (cloud SWG), or indicator import (endpoint protection). A plain-text list works with any system that reads a text file.
Decide whether you need a full block of all 18 AI categories or a targeted block of specific ones. Category-filtered lists are available via the API or as pre-built downloads for common policy profiles (e.g., "block all except Code & Development").
Point your firewall at the feed URL or import the domain list, and set the refresh interval (daily recommended; hourly available for enterprise plans). Apply the block rule to the appropriate user groups, VLANs, or security zones.
Test by navigating to a known AI-tool domain from a client behind the firewall, then check logs to confirm the block action. Set up SIEM log forwarding for alerts and monitor feed refresh logs to confirm daily updates pull successfully.
# Quick validation script — test if AI domains are blocked from a client machine # Run from any machine behind the firewall #!/bin/bash DOMAINS=("openai.com" "claude.ai" "midjourney.com" "jasper.ai" "copy.ai") for domain in "${DOMAINS[@]}"; do response=$(curl -s -o /dev/null -w "%{http_code}" --connect-timeout 5 "https://$domain") if [ "$response" == "000" ] || [ "$response" == "403" ]; then echo "[BLOCKED] $domain" else echo "[OPEN] $domain — HTTP $response" fi done
For individual machines not behind the corporate firewall, the hosts file is the fastest path — it maps AI-tool domains to 0.0.0.0, sinkholing them before any network request is made. No additional software is required and it works on Windows, macOS, and Linux.
# /etc/hosts — AI tool blocking (excerpt) # Full hosts-format file available from your account downloads page 0.0.0.0 openai.com 0.0.0.0 chat.openai.com 0.0.0.0 api.openai.com 0.0.0.0 claude.ai 0.0.0.0 anthropic.com 0.0.0.0 gemini.google.com 0.0.0.0 midjourney.com 0.0.0.0 jasper.ai 0.0.0.0 copy.ai 0.0.0.0 writesonic.com # ... 17,410+ domains total
Download the free 50-domain sample to test on your firewall today. Or tell us your platform and we will send the feed in the exact format you need.
Specify your firewall vendor, firmware version, and preferred format (EDL, hosts, PAC, API). We will send a ready-to-import feed within 24 hours.