DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
onsim.uk runs on Amazon AWS, with DNS by AWS Route 53 and email via Microsoft 365.
- Hosting network
- Amazon AWSAS16509Amazon AWS
- Managed DNS
- AWS Route 53
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 3,545,874 other sites on Amazon AWS. Stable here since we started watching (Sep 13, 2026).
DNS Records for onsim.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| onsim.uk | NS | 0 | ns-1132.awsdns-13.org | |
| onsim.uk | NS | 0 | ns-1809.awsdns-34.co.uk | |
| onsim.uk | NS | 0 | ns-1002.awsdns-61.net | |
| onsim.uk | NS | 0 | ns-228.awsdns-28.com | |
| onsim.uk | MX | 0 | onsim-uk.mail.protection.outlook.com | |
| onsim.uk | SOA | 86400 | ns-1002.awsdns-61.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 | |
| onsim.uk | TXT | 0 | v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0mYW+NFx+Bo5TJ1I6JbKEhaaQ7K7I5SA0rZmE1oTvLmI3AOmYcG20Y5hkDK40Z0VKzSgH2FleyZj/1ttVnPvRhUVYWjiljtom93+N04H0WIlGR0Xe41OWx++iYCZ1J1w5u+jfGhj+UQKzjmaptTw23H27FgGZ58CFtEdX546WvQIDAQAB | |
| onsim.uk | TXT | 0 | status-page-domain-verification=c8tflmwbbt0y | |
| onsim.uk | TXT | 0 | facebook-domain-verification=7u0e8xq54n8njrqzfmju8fj7a2nt9h | |
| onsim.uk | TXT | 0 | apple-domain-verification=SLVBGMUjK0AjrZi5 | |
| onsim.uk | TXT | 0 | v=spf1 include:_spf.google.com include:mail.zendesk.com include:stspg-customer.com include:spf.protection.outlook.com include:messages.desk-phone.com ip4:129.159.251.61 ip4:138.2.167.42 ~all | |
| onsim.uk | TXT | 0 | google-site-verification=otrkXKeCRzGVA4rtnsdfQoJCU5y5zlsPDqXdyHLRESw | |
| onsim.uk | TXT | 0 | MS=ms31083024 | |
| onsim.uk | A | 0 | 18.165.98.6 | |
| onsim.uk | A | 0 | 18.165.98.31 | |
| onsim.uk | A | 0 | 18.165.98.45 | |
| onsim.uk | A | 0 | 18.165.98.124 | |
| www.onsim.uk | CNAME | 0 | d39p2iyqeb8qpg.cloudfront.net | |
| www.onsim.uk | SOA | 86400 | ns-1019.awsdns-63.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:e000:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:400:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:2e00:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:6e00:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:d400:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:7200:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:ba00:15:4acf:d00:93a1 | |
| www.onsim.uk | AAAA | 0 | 2600:9000:24f5:a600:15:4acf:d00:93a1 | |
| www.onsim.uk | NS | 0 | ns-216.awsdns-27.com | |
| www.onsim.uk | NS | 0 | ns-1706.awsdns-21.co.uk | |
| www.onsim.uk | NS | 0 | ns-1019.awsdns-63.net | |
| www.onsim.uk | NS | 0 | ns-1534.awsdns-63.org | |
| www.onsim.uk | A | 0 | 18.165.98.45 | |
| www.onsim.uk | A | 0 | 18.165.98.124 | |
| www.onsim.uk | A | 0 | 18.165.98.6 | |
| www.onsim.uk | A | 0 | 18.165.98.31 |
Get alerted the moment onsim.uk's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch onsim.uk 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
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