Hostname
haarlemcollege.nl
Last fetched
haarlemcollege.nl resolves to 1 IPv4 address operated by CYSO-AS - Cyso Group B.V. in NL. WHOIS lists registrar:the registrar company b.v. as the registrar.
Nutrition Label
Resolution chain
haarlemcollege.nl resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 109.235.78.55 | 109.235.72.0/21 | AS25151 | CYSO-AS - Cyso Group B.V. | NL |
WHOIS identity
- Registrar
- registrar:the registrar company b.v.
- Organization
- —
- Contact emails
- —
Subdomains
3 observed subdomains of haarlemcollege.nl.
Web-graph footprint
Distinct hostnames that link to or from haarlemcollege.nl in the public web crawl.
17 sites link to this hostname.
29 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
8 SPF mechanisms authorising senders for haarlemcollege.nl.
| Mechanism | Target |
|---|---|
| SPF_A | smtp.schoolwerkplek.nl |
| SPF_INCLUDE | _spf.ubeeo.nl |
| SPF_INCLUDE | _spf.wiscollect.nl |
| SPF_INCLUDE | spf.bhosted.nl |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 188.240.54.87 |
| SPF_IP | 37.97.226.126 |
| SPF_IP | 81.21.176.90/32 |
Related pages
Pivot deeper into the graph from haarlemcollege.nl.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "haarlemcollege.nl"})-[:RESOLVES_TO]->(ip:IPV4)
-[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
-[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20Or query Whisper from your own LLM workflow via the Whisper MCP server.