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Gridlode
Rank #2,421Updated November 10, 2026

southampton.ac.uk

The science behind Blue Planet III | University of Southampton

The site runs on Drupal, Azure Front Door, PHP and 2 other technologies. Its email security grade is A. Its SSL certificate is issued by Let's Encrypt and is valid for 53 more days.

Domain age
—
Technologies
5
Email security
A
SSL days left
53

Registration

Name servers

DNS records

TypeValueTTL
A152.78.118.5228800
MXsouthampton-ac-uk.mail.protection.outlook.com 103600
NSns3.ja.net28800
NSns1.soton.ac.uk28800
NSns3.soton.ac.uk28800
NSns2.soton.ac.uk28800
NSns0.soton.ac.uk28800
TXTatlassian-domain-verification=UhgQdSlTFF5ICrMhdfm73YRzvx45gm5lGhhQsqdiwiv5QYEGLCdb4f/LMGwOxIgI28800
TXTgoogle-site-verification=p4KCmcLwGDDOTq3au6PlsSf_avUgEOcCNdCOHSRy6Zc28800
TXTd365mktkey=tc1uwdVKxb2jMSRg4yVdzAx62c5ub4zrFdtiSqA3u00x28800
TXTmsfpkey=4gmvq3p8xt90taw3gurv1crrf28800
TXTMS=ms8323861028800
TXTv=spf1 ip4:185.3.164.176 mx include:spf.protection.outlook.com include:servers.mcsv.net include:hobsonsmail.com include:mail-eu.geckoform.com include:_spf.mailgun.org -all28800
TXTQ1ZupViWEenfU6fRL0GqvqcEgWJ+dDXOGemkJw5wdcL0sb1Stu9/eZk9pdiB++Yh29gltBydeG9XfiNna7bAdA==28800
TXTefcac4e7-3b81-4ea0-8d6a-0afb3c90f15028800
TXTd365mktkey=mTRDh9IU0CXISa67nOdx5NrMgCbo7Khdr3XJToesHeQx28800
TXTMCvCAISxjU7MLuMFbSWlluLLrmWq0uCT85YNa8tko3DG9+80PV6aqA94f/KsnZotfQRPpo+OYnM9PktOLDwO0A==28800
TXTd365mktkey=RE93RTaFa9pBUERjbn5w0o7ApZ5TsSdGxGO6wrBeKBsx28800
TXTd365mktkey=f2GFbhzY9JE2l4ZUosMGJ69aJRLMgc7945ci4XQYPDMx28800

Technology stack

Programming language
Security

Analytics and advertising IDs

google_tag_manager:GTM-PMMZ8Q

SSL certificate

ValidValid
IssuerUS, YE2, Let's Encrypt
ExpiresJanuary 2, 2027
Days remaining53
ProtocolTLSv1.3
Namescdn.soton.ac.uk, cdn.southampton.ac.uk, southampton.ac.uk, www.soton.ac.uk, www.southampton.ac.uk

Email security

AScore 93/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • badAn MTA-STS DNS record exists but the policy file at https://mta-sts.southampton.ac.uk/.well-known/mta-sts.txt could not be loaded or is invalid.
  • warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
  • 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].
  • goodDKIM keys found (selector: selector1, selector2, k1, k2).
  • good1 MX record(s) found. Mail is handled by Microsoft 365.
  • goodTLS-RPT is set up: you receive reports about failed encrypted deliveries.
  • goodBIMI record found: supporting inboxes can show your brand logo.

Homepage metadata

TitleThe science behind Blue Planet III | University of Southampton
Languageen
Canonicalhttps://www.southampton.ac.uk/
Structured dataOrganization
IndexableYes
Word count3663

About southampton.ac.uk

What technology does southampton.ac.uk use?

We detected 5 technologies on southampton.ac.uk, including Azure Front Door, Drupal, PHP, HSTS, Google Tag Manager.

Does southampton.ac.uk protect its email with SPF and DMARC?

southampton.ac.uk scores 93/100 (grade A) for email security. An MTA-STS DNS record exists but the policy file at https://mta-sts.southampton.ac.uk/.well-known/mta-sts.txt could not be loaded or is invalid. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.

What are the name servers of southampton.ac.uk?

southampton.ac.uk uses ns3.ja.net, ns1.soton.ac.uk, ns3.soton.ac.uk, ns2.soton.ac.uk, ns0.soton.ac.uk.