DNS Record Lookup
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Hosting & Network
rsas4u.ca runs on AS36666, with email configured.
- Hosting network
- AS36666AS36666
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 25,516 other sites on AS36666. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to rsas4u.ca.
DNS Records for rsas4u.ca
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| rsas4u.ca | MX | 0 | 20 | mx2.web-dns1.com |
| rsas4u.ca | MX | 0 | 10 | mx1.web-dns1.com |
| rsas4u.ca | MX | 0 | 30 | mx3.web-dns1.com |
| rsas4u.ca | A | 0 | 173.209.32.227 | |
| rsas4u.ca | SOA | 86400 | ns1.whc.ca sysadmin.whc.ca 2026022400 3600 1800 1209600 86400 | |
| rsas4u.ca | NS | 0 | ns3.whc.ca | |
| rsas4u.ca | NS | 0 | ns1.whc.ca | |
| rsas4u.ca | NS | 0 | ns2.whc.ca | |
| rsas4u.ca | TXT | 0 | _bjpb1owze3iat9k1wp66owstzk4lifv | |
| rsas4u.ca | TXT | 0 | _xgz5g2h4xkeie703xpk6ftxjdyid72l | |
| rsas4u.ca | TXT | 0 | google-site-verification=3-ZyCAHgFFW9XgnrnZ3uHso_Ht4mG9RKVmIuClWM0WQ | |
| rsas4u.ca | TXT | 0 | v=spf1 +ip4:173.209.32.226 +include:spf.web-dns1.com +ip4:51.161.13.182 +a +mx +ip4:54.39.100.142 +ip4:149.56.221.92 ~all | |
| www.rsas4u.ca | CNAME | 0 | rsas4u.ca | |
| www.rsas4u.ca | A | 0 | 173.209.32.227 | |
| www.rsas4u.ca | MX | 0 | 20 | mx2.web-dns1.com |
| www.rsas4u.ca | MX | 0 | 10 | mx1.web-dns1.com |
| www.rsas4u.ca | MX | 0 | 30 | mx3.web-dns1.com |
| www.rsas4u.ca | NS | 0 | ns3.whc.ca | |
| www.rsas4u.ca | NS | 0 | ns2.whc.ca | |
| www.rsas4u.ca | NS | 0 | ns1.whc.ca | |
| www.rsas4u.ca | TXT | 0 | google-site-verification=3-ZyCAHgFFW9XgnrnZ3uHso_Ht4mG9RKVmIuClWM0WQ | |
| www.rsas4u.ca | TXT | 0 | _xgz5g2h4xkeie703xpk6ftxjdyid72l | |
| www.rsas4u.ca | TXT | 0 | v=spf1 +ip4:173.209.32.226 +include:spf.web-dns1.com +ip4:51.161.13.182 +a +mx +ip4:54.39.100.142 +ip4:149.56.221.92 ~all | |
| www.rsas4u.ca | TXT | 0 | _bjpb1owze3iat9k1wp66owstzk4lifv | |
| www.rsas4u.ca | SOA | 86400 | ns1.whc.ca sysadmin.whc.ca 2026022400 3600 1800 1209600 86400 |
Get alerted the moment rsas4u.ca's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch rsas4u.ca continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain