Hostname
pretextbook.org
Last fetched
pretextbook.org resolves to 1 IPv4 address operated by AS63949 in US. WHOIS lists iana:1068 as the registrar.
Nutrition Label
Resolution chain
pretextbook.org 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 |
|---|---|---|---|---|
| 74.207.233.115 | 74.207.224.0/20 | AS63949 | — | US |
WHOIS identity
- Registrar
- iana:1068
- Organization
- privacy service provided by withheld for privacy ehf
- Contact emails
Subdomains
1 observed subdomain of pretextbook.org.
| Subdomain |
|---|
| www.pretextbook.org |
Web-graph footprint
Distinct hostnames that link to or from pretextbook.org in the public web crawl.
126 sites link to this hostname.
160 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
4 SPF mechanisms authorising senders for pretextbook.org.
| Mechanism | Target |
|---|---|
| SPF_A | pretextbook.org |
| SPF_IP | 173.255.249.21 |
| SPF_IP | 2600:3c01:0:0:f03c:92ff:fef2:9fe6 |
| SPF_MX | pretextbook.org |
Related pages
Pivot deeper into the graph from pretextbook.org.
- IP · 74.207.233.115
- ASN · AS63949
- Registrar · iana:1068
- Country · US
- Email · 9b743f30ca5846b8a041f52d0ca6fbe2.protect@whoisguard.com
- TLD · .org
- Browse hostnames · pr…
- Glossary · What is a hostname?
- Whisper Internet Directory — home
- Live MOAS conflicts feed
- Threat feed · Spamhaus DROP
- United States internet infrastructure
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "pretextbook.org"})-[: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.