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Bot signals — Internet scanner

CERT Polska Artemis scanner IP addresses

CERT Polska Artemis is an internet scanning project in the IPAPI.GR scanner catalogue. Addresses it publishes or verifiably identifies as its own set risk.is_scanner.

risk.is_scanner FeedRangesrDNS Reviewed
Official documentation (opens in a new tab) All internet scanners

Check an IP

Is this IP really CERT Polska Artemis?

Checks the address against what CERT Polska Artemis publishes, the same evidence behind risk.is_scanner.

01 — Verification

How IPAPI.GR verifies CERT Polska Artemis.

Only from what CERT Polska Artemis publishes about itself. No third-party blocklists, no behavioural guesses. Live address counts change with every publication, so check the official file for the current list.

CERT Polska Artemis

risk.is_scanner
Method
Feed Operator IP feed
Method
Ranges Published IP ranges
Method
rDNS Forward-confirmed reverse DNS
Official file
Format
Operator IP feed
Reverse DNS
Exact hostnames: skanowanie.cert.pl. The hostname must then resolve forward to the same address.
Networks
Ranges the project publishes or has registered for scanning, reviewed into the scanner catalogue.
Refresh
Every hour. If a refresh fails, entries expire after 24 hours instead of being trusted forever.

02 — In the response

What a match looks like.

A lookup of a CERT Polska Artemis address sets risk.is_scanner. The flags come with geolocation and network data in the same response, for Pro API keys.

The response says which kind of bot an address belongs to, not which operator. Pair it with the user agent: a request that claims to be CERT Polska Artemis but doesn't match is unverified.

GET /api/lookup/{ip}?key=PRO_KEY
{
  // … location and network fields …
  "risk": {
    "is_ai": false,
    "is_crawler": false,
    "is_scanner": true
  }
}

03 — Questions

About CERT Polska Artemis.

Does CERT Polska Artemis publish its scanner IP addresses?

Yes. CERT Polska Artemis publishes a list at https://wiedza.cert.pl/systemy-cert-polska/uslugi/artemis/, which IPAPI.GR imports directly.

How do I verify CERT Polska Artemis with reverse DNS?

Look up the PTR record for the IP address. The hostname must be one of skanowanie.cert.pl, and a forward lookup of that hostname must return the same IP address. A PTR record alone can be set by anyone who controls the address, so the forward confirmation is the part that matters.

How often is the CERT Polska Artemis list refreshed?

IPAPI.GR re-fetches it every hour. If a refresh fails, the previous entries expire after at most 24 hours instead of being trusted forever.

Which risk flag does CERT Polska Artemis set?

A matching address sets risk.is_scanner in the lookup response. The risk flags are returned for Pro API keys.

From the blog

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