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Hostname

syfer.nl

Last fetched

syfer.nl resolves to 1 IPv4 address operated by AS50673 in NL. WHOIS lists registrar:knoth webmedia en hosting as the registrar.

Nutrition Label

WHISPER CANON · syfer.nlRouting diversity1.5/10Peering density9.9/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.6/10canon.whisper.security/host/syfer.nl

Resolution chain

syfer.nl resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
91.220.37.3891.220.37.0/24AS50673—NL

WHOIS identity

Registrar
registrar:knoth webmedia en hosting
Organization
—
Contact emails
—

Subdomains

6 observed subdomains of syfer.nl.

Subdomain
ftp.syfer.nl
mail.syfer.nl
pop.syfer.nl
proxy.syfer.nl
smtp.syfer.nl
www.syfer.nl

Web-graph footprint

Distinct hostnames that link to or from syfer.nl in the public web crawl.

29 sites link to this hostname.

50 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for syfer.nl.

MechanismTarget
SPF_Asyfer.nl
SPF_IP91.220.37.38
SPF_MXsyfer.nl

Related pages

Pivot deeper into the graph from syfer.nl.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "syfer.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 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.