DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
host100.co.uk runs on Microsoft Azure, with email via Microsoft 365.
- Hosting network
- Microsoft AzureAS8075Microsoft Azure
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Microsoft Azure. Stable here since we started watching (Jul 20, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to host100.co.uk.
DNS Records for host100.co.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| host100.co.uk | MX | 0 | host100-co-uk.mail.protection.outlook.com | |
| host100.co.uk | A | 0 | 51.105.50.46 | |
| host100.co.uk | NS | 0 | ens1.host100.co.uk | |
| host100.co.uk | NS | 0 | ens3.host100.co.uk | |
| host100.co.uk | NS | 0 | ens2.host100.co.uk | |
| host100.co.uk | NS | 0 | ens4.host100.co.uk | |
| host100.co.uk | TXT | 0 | _86c6pob27373nfld6dfigpgagnc6ls3 | |
| host100.co.uk | TXT | 0 | _globalsign-domain-verification=QjApqeFlV8VxFCuWhHJmVx5aG-SaTfFM1DDxXwE37I | |
| host100.co.uk | TXT | 0 | google-site-verification=VK9YOeDkRrfNbSPBciBJElEzrD_bx3hvRrd6EANw82o | |
| host100.co.uk | TXT | 0 | v=spf1 include:spf.protection.outlook.com include:spf.host100.co.uk ip4:51.141.85.140 ip4:142.202.241.105 ip4:161.129.153.106 ip4:203.29.243.181 include:sendgrid.net include:spf.nodeping.com include:_spf.mailrelay.rrpproxy.net -all | |
| host100.co.uk | SOA | 3600 | placeholder.host100.co.uk admin.host100.co.uk 2026072803 86400 7200 3628800 3600 | |
| www.host100.co.uk | CNAME | 0 | host100.co.uk | |
| www.host100.co.uk | TXT | 0 | _globalsign-domain-verification=QjApqeFlV8VxFCuWhHJmVx5aG-SaTfFM1DDxXwE37I | |
| www.host100.co.uk | TXT | 0 | v=spf1 include:spf.protection.outlook.com include:spf.host100.co.uk ip4:51.141.85.140 ip4:142.202.241.105 ip4:161.129.153.106 ip4:203.29.243.181 include:sendgrid.net include:spf.nodeping.com include:_spf.mailrelay.rrpproxy.net -all | |
| www.host100.co.uk | TXT | 0 | google-site-verification=VK9YOeDkRrfNbSPBciBJElEzrD_bx3hvRrd6EANw82o | |
| www.host100.co.uk | TXT | 0 | _86c6pob27373nfld6dfigpgagnc6ls3 | |
| www.host100.co.uk | SOA | 3600 | placeholder.host100.co.uk admin.host100.co.uk 2026072803 86400 7200 3628800 3600 | |
| www.host100.co.uk | A | 0 | 51.105.50.46 | |
| www.host100.co.uk | NS | 0 | ens4.host100.co.uk | |
| www.host100.co.uk | NS | 0 | ens1.host100.co.uk | |
| www.host100.co.uk | NS | 0 | ens2.host100.co.uk | |
| www.host100.co.uk | NS | 0 | ens3.host100.co.uk | |
| www.host100.co.uk | MX | 0 | host100-co-uk.mail.protection.outlook.com |
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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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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