Rank #5,019Updated November 10, 2026
city.ac.uk
Its email security grade is A. Its SSL certificate is issued by Let's Encrypt and is valid for 57 more days.
- Domain age
- —
- Technologies
- —
- Email security
- A
- SSL days left
- 57
Registration
| Name servers |
|---|
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 43.245.41.211 | 300 |
| MX | city-ac-uk.mail.protection.outlook.com 0 | 900 |
| NS | ns01.city.ac.uk | 900 |
| NS | ns02.city.ac.uk | 900 |
| NS | ns4.ja.net | 900 |
| NS | ns3.ja.net | 900 |
| TXT | airtable-verification=00893238b74b01c9c3a560357af50f91 | 900 |
| TXT | dropbox-domain-verification=wxk61o8p2y7h | 900 |
| TXT | msfpkey=23ya36mhyo78hr2n1sm333xrr | 900 |
| TXT | autodesk-domain-verification=sFrgq_TvM7MiV0VVMpLq | 900 |
| TXT | coursera-domain-verification=hbAEuz1Zpt3xJUQmXBuyEfdD2VtcB02RCu7Ne5bPFAOrAdAFMJWvsf3tV2Z2hpv4 | 900 |
| TXT | ca3-e03f0c811bf944c592868498208eca1b | 900 |
| TXT | v=spf1 redirect=city.ac.uk.on.autospf.email | 900 |
| TXT | hpe-greenlake-domain-verification=434431522d346b573844684c39304f76703637653674436a4b354871582d7753 | 900 |
| TXT | zscaler-verification-183958260-1032026-%*@H&H | 900 |
| TXT | onetrust-domain-verification=6b3bd6284f7c4841bbe79c694e1480d6 | 900 |
| TXT | google-site-verification=cHaSUsb3kzMbERTM5GrktOMSjGL_y8aKZe_BwyOmNV4 | 900 |
| TXT | google-site-verification=WbBSOwt3pC97FSgPxqaJL_V6a_i_QL_eDGeON7ZLf-A | 900 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YE2, Let's Encrypt |
| Expires | January 7, 2027 |
| Days remaining | 57 |
| Protocol | TLSv1.3 |
| Names | city.ac.uk |
Email security
AScore 90/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
- goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
- goodDKIM keys found (selector: selector1, selector2, s1, s2).
- good1 MX record(s) found. Mail is handled by Microsoft 365.
- goodMTA-STS is enforced: other servers must use verified TLS when sending you mail.
- goodTLS-RPT is set up: you receive reports about failed encrypted deliveries.
About city.ac.uk
Does city.ac.uk protect its email with SPF and DMARC?
city.ac.uk scores 90/100 (grade A) for email security. No BIMI record (optional: shows your logo next to your emails in supporting inboxes). SPF record found.
What are the name servers of city.ac.uk?
city.ac.uk uses ns01.city.ac.uk, ns02.city.ac.uk, ns4.ja.net, ns3.ja.net.