Rank #9,954Updated November 10, 2026
sherpa.ac.uk
Its email security grade is A. Its SSL certificate is issued by Let's Encrypt and is valid for 55 more days.
- Domain age
- —
- Technologies
- —
- Email security
- A
- SSL days left
- 55
Registration
| Name servers |
|---|
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 104.18.30.127 | 300 |
| A | 104.18.31.127 | 300 |
| MX | sherpa-ac-uk.mail.protection.outlook.com 0 | 300 |
| NS | ns-1225.awsdns-25.org | 172800 |
| NS | ns-1757.awsdns-27.co.uk | 172800 |
| NS | ns-362.awsdns-45.com | 172800 |
| NS | ns-725.awsdns-26.net | 172800 |
| CAA | iodef 0 mailto:[email protected] | 300 |
| CAA | issue 0 amazontrust.com | 300 |
| CAA | issue 0 letsencrypt.org | 300 |
| CAA | issue 0 sectigo.com | 300 |
| CAA | issue 0 ssl.com | 300 |
| CAA | issuewild 0 amazontrust.com | 300 |
| CAA | issuewild 0 letsencrypt.org | 300 |
| CAA | issuewild 0 sectigo.com | 300 |
| CAA | issuewild 0 ssl.com | 300 |
| TXT | MS=ms30362276 | 300 |
| TXT | QuoVadis=d08bd3ed-22ed-4a05-b862-360d39cf6682 | 300 |
| TXT | v=spf1 -all | 300 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YE1, Let's Encrypt |
| Expires | January 4, 2027 |
| Days remaining | 55 |
| Protocol | TLSv1.3 |
| Names | *.sherpa.ac.uk, sherpa.ac.uk |
Email security
AScore 92/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC policy is reject: mail that fails authentication is blocked.
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodSPF says this domain sends no email, so DKIM signing is not needed.
- good1 MX record(s) found. Mail is handled by Microsoft 365.
- goodTLS-RPT is set up: you receive reports about failed encrypted deliveries.
About sherpa.ac.uk
Does sherpa.ac.uk protect its email with SPF and DMARC?
sherpa.ac.uk scores 92/100 (grade A) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. SPF record found.
What are the name servers of sherpa.ac.uk?
sherpa.ac.uk uses ns-1225.awsdns-25.org, ns-1757.awsdns-27.co.uk, ns-362.awsdns-45.com, ns-725.awsdns-26.net.