Hostname
yrdsb.ca
Last fetched
yrdsb.ca has no current public IPv4 resolution in WhisperGraph; WHOIS lists registrar:easydns technologies inc. as the registrar.
Nutrition Label
Resolution chain
yrdsb.ca has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.
WHOIS identity
- Registrar
- registrar:easydns technologies inc.
- Organization
- york region district school board
- Contact emails
- —
Subdomains
217 observed subdomains of yrdsb.ca.
Showing 25 of 217. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from yrdsb.ca in the public web crawl.
492 sites link to this hostname.
199 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
12 SPF mechanisms authorising senders for yrdsb.ca.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | spf.ebasefm.com |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 209.221.90.209 |
| SPF_IP | 209.221.90.22 |
| SPF_IP | 209.221.90.23 |
| SPF_IP | 209.221.90.25 |
| SPF_IP | 209.221.90.26 |
| SPF_IP | 209.221.90.27 |
| SPF_IP | 209.221.90.28 |
| SPF_IP | 209.221.90.29 |
| SPF_IP | 209.221.90.30 |
| SPF_MX | yrdsb.ca |
Related pages
Pivot deeper into the graph from yrdsb.ca.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "yrdsb.ca"})-[: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.