Hostname

techfeed.cz

Last fetched Sun, 26 Jul 2026 03:06:47 GMT

techfeed.cz resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

techfeed.cz resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.21.68.233	104.21.64.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.199.133	172.67.192.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: gods s.r.o.
Contact emails: —

Subdomains

1 observed subdomain of techfeed.cz.

Subdomain
www.techfeed.cz

Web-graph footprint

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

77 sites link to this hostname.

495 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.fiolasoft.net

SPF policy

2 SPF mechanisms authorising senders for techfeed.cz.

Mechanism	Target
SPF_INCLUDE	servers.mcsv.net
SPF_MX	techfeed.cz

Pivot deeper into the graph from techfeed.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "techfeed.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.