Skip to content

Hostname

opweb.cz

Last fetched

opweb.cz resolves to 1 IPv4 address operated by AS29134 in CZ. WHOIS lists registrar:reg-thinline as the registrar.

Nutrition Label

WHISPER CANON · opweb.czRouting diversity1.5/10Peering density4.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency6.7/10Resolver footprint4.0/10canon.whisper.security/host/opweb.cz

Resolution chain

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

IPPrefixASNOperatorCountry
213.109.165.84213.109.164.0/22AS29134—CZ

WHOIS identity

Registrar
registrar:reg-thinline
Organization
op web s.r.o.
Contact emails

Subdomains

4 observed subdomains of opweb.cz.

Subdomain
support.opweb.cz
test.opweb.cz
wiki.opweb.cz
www.opweb.cz

Web-graph footprint

Distinct hostnames that link to or from opweb.cz in the public web crawl.

25 sites link to this hostname.

60 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 opweb.cz.

MechanismTarget
SPF_Aopweb.cz
SPF_INCLUDE_spf.google.com
SPF_INCLUDEspf.cesky-hosting.cz

Related pages

Pivot deeper into the graph from opweb.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "opweb.cz"})-[: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.