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Hosting & Network
shef.ac.uk runs on AS786, with email via Google Workspace.
- Hosting network
- AS786AS786
- Managed DNS
- Self-hosted / other
- Google Workspace
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 1,773 other sites on AS786. Stable here since we started watching (Jul 17, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to uuu.shef.ac.uk.
DNS Records for shef.ac.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| shef.ac.uk | CAA | 0 | 0 issue sectigo.com | |
| shef.ac.uk | CAA | 0 | 0 issue letsencrypt.org | |
| shef.ac.uk | CAA | 0 | 0 issue godaddy.com | |
| shef.ac.uk | CAA | 0 | 0 iodef mailto:soc@sheffield.ac.uk | |
| shef.ac.uk | CAA | 0 | 0 issue pki.goog | |
| shef.ac.uk | CAA | 0 | 0 issue digicert.com | |
| shef.ac.uk | CAA | 0 | 0 issuewild sectigo.com | |
| shef.ac.uk | CAA | 0 | 0 issue amazon.com | |
| shef.ac.uk | CAA | 0 | 0 issuewild letsencrypt.org | |
| shef.ac.uk | MX | 0 | 10 | alt3.aspmx.l.google.com |
| shef.ac.uk | MX | 0 | 10 | alt4.aspmx.l.google.com |
| shef.ac.uk | MX | 0 | 1 | aspmx.l.google.com |
| shef.ac.uk | MX | 0 | 5 | alt2.aspmx.l.google.com |
| shef.ac.uk | MX | 0 | 5 | alt1.aspmx.l.google.com |
| shef.ac.uk | NS | 0 | hippo.shef.ac.uk | |
| shef.ac.uk | NS | 0 | acheron.shef.ac.uk | |
| shef.ac.uk | NS | 0 | ns4.ja.net | |
| shef.ac.uk | SOA | 600 | acheron.shef.ac.uk hostmaster.shef.ac.uk 2025581594 3600 3600 1209600 600 | |
| shef.ac.uk | A | 0 | 143.167.2.102 | |
| shef.ac.uk | TXT | 0 | apple-domain-verification=aQwUN0OnGdXEaFv7 | |
| shef.ac.uk | TXT | 0 | google-site-verification=isKsdLEuDlo36yj5mOEE565z5MSZ3ZToeKOK5ovSB0U | |
| shef.ac.uk | TXT | 0 | QuoVadis=b6b1f5bd-5729-453c-9950-107c31ff576a | |
| shef.ac.uk | TXT | 0 | google-site-verification=xecQmyR2UQAd3OiZbAW_FJHFJPwg8p8uX30nW4o6zOY | |
| shef.ac.uk | TXT | 0 | fastly-domain-delegation-nswth4upxeqnqveipseg-00624106-2026-03-04 | |
| shef.ac.uk | TXT | 0 | v=spf1 ip4:143.167.0.0/16 ip4:95.172.88.0/22 ip4:130.88.36.5 ip4:80.93.168.194 ip4:85.92.81.226 ip4:146.177.26.90/31 ip4:146.177.26.108/31 ip4:81.17.56.1 ip4:94.23.120.168 ip4:149.56.182.220 ip4:35.242.247.107 ip4:34.107.8.58 ip4:212.227.126.128/25 ip4:82.165.159.0/26 ip4:212.227.15.0/25 ip4:212.227.17.0/27 ip4:217.72.192.64/26 ip4:74.121.48.4 ip4:31.221.91.141 ip4:212.54.136.59 ip4:31.221.72.237 ip4:35.177.177.249 ip4:35.178.89.45 ip4:50.56.130.220/30 ip4:207.97.204.96/29 ip4:146.20.14.104/30 ip4:164.177.132.168/30 ip4:35.234.108.85/32 ip4:34.90.200.156/32 ip4:35.204.47.209/32 include:_spf.google.com include:wpm.flywire.com include:spf.mailanyone.net include:spf.mandrillapp.com include:shops.shopify.com -all | |
| www.shef.ac.uk | CNAME | 0 | uuu.shef.ac.uk | |
| www.shef.ac.uk | A | 0 | 143.167.2.102 |
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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