Rank #8,029Updated November 10, 2026
ntu.ac.uk
Its email security grade is C. Its SSL certificate is issued by Let's Encrypt and is valid for 35 more days.
- Domain age
- —
- Technologies
- —
- Email security
- C
- SSL days left
- 35
Registration
| Name servers |
|---|
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 2.58.104.10 | 5 |
| MX | ntu-ac-uk.mail.protection.outlook.com 0 | 1736 |
| NS | ns1.ja.net | 300 |
| NS | dns0.ntu.ac.uk | 300 |
| NS | dns1.ntu.ac.uk | 300 |
| TXT | _globalsign-domain-verification=H6ZpZYhJEP0xbq6J8V47NkLD59NA99KNfFD79rGvKy | 300 |
| TXT | google-site-verification=5TmlWWmi5d5NLm1EHN_eqHpPBuonT6Z7gtTMgMKdJSs | 300 |
| TXT | jamf-site-verification=bUwskBTDcqgBbL4sdibhAA | 300 |
| TXT | google-gws-recovery-domain-verification=69394460 | 300 |
| TXT | google-gws-recovery-domain-verification=69614898 | 300 |
| TXT | brevo-code:08ff5ed4a343c2591bb9bb37af9e421d | 300 |
| TXT | ms-domain-verification=5405e580-9e5e-4024-8882-a42cebec9430 | 300 |
| TXT | 1B5962E1A696C06E8EBCEA0B21E7BEBEE8177BE664DCB8E06B48E6B2AD774706 | 300 |
| TXT | google-gws-recovery-domain-verification=73001927 | 300 |
| TXT | google-site-verification=-HX2V-6qAoFxpCwhrI287Gd_LF_TBzcntZOgcEKK3_Q | 300 |
| TXT | vONfKptSGotgzsNdIHgO1X3x2pfj9yxQ5GC7WfPFnsEzVdnx+3eRj5ykM5/3eU4XEbdztwF7wtW3CR+J/+2fzA== | 300 |
| TXT | MS=ms52600687 | 300 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YE1, Let's Encrypt |
| Expires | December 15, 2026 |
| Days remaining | 35 |
| Protocol | TLSv1.3 |
| Names | ntu.ac.uk |
Email security
CScore 79/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- 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 rejected (hard 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].
- goodDKIM keys found (selector: selector1, s1, s2, mandrill).
- good1 MX record(s) found. Mail is handled by Microsoft 365.
About ntu.ac.uk
Does ntu.ac.uk protect its email with SPF and DMARC?
ntu.ac.uk scores 79/100 (grade C) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of ntu.ac.uk?
ntu.ac.uk uses ns1.ja.net, dns0.ntu.ac.uk, dns1.ntu.ac.uk.