Domain technical report
University of York
york.ac.uk
Outstanding teaching and research in a beautiful and historic city. York is a member of the prestigious Russell Group of research-intensive UK universities.
IPv41
IPv61
MX5
NS4
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87
Total
85
DNS
90
Email
77
Security
85
Network
100
Availability
Domainyork.ac.uk
IPv41
IPv61
MX records5
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
1 IPv4 address(es) detected.
IPv6 (AAAA)10 / 10 pts · Dns
1 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
4 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain0 / 15 pts · Dns
Both DS and DNSKEY are required.
CAA policy5 / 5 pts · Dns
Certificate authority restriction.
DNS propagation10 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
5 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
DKIM20 / 20 pts · Mail
A DKIM selector was verified.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
66 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers12 / 35 pts · Security
3 of 9 evaluated headers detected.
PTR reverse DNS30 / 30 pts · Network
PTR: yorkacuk.york.ac.uk
IPv4 diversity20 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity35 / 35 pts · Network
AAAA availability.
DNS resolution40 / 40 pts · Availability
At least one address family must resolve.
HTTP response40 / 40 pts · Availability
HTTP/2 200
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
1 record(s)144.32.128.115
AAAA
1 record(s)2001:630:61:180::1:73
CNAME
0 record(s)—
Not configured
MX
5 record(s)10 alt4.aspmx.l.google.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 1 aspmx.l.google.com. 10 alt3.aspmx.l.google.com.
TXT
9 record(s)"docusign=15f9236f-fcc7-43a8-b92d-a7f61feaf46b" "mandrill_verify.3Ru1mvZzZJy5d2dGlzkKaQ" "9j7dn62br4c9bj3rc1ug6mal1q" "hpe-greenlake-domain-verification=7a58677678314133754e6c2d736348414455503633784161346d494232534d6a" "v=spf1 include:_spf.york.ac.uk include:_spf.google.com -all" "formstack-domain-verification=8f07a12621b9628970ca76f97743e294" "twilio-domain-verification=1395e7d15ae1fac1a10b8a7b0ad5e66e" "atlassian-domain-verification=Yhq9OnKNxMwugKi1gcSWjAn1xqUW9Ig4EjWsmd0f/xoTFwDaWmLoQpZ3Z0YKi1zw" "375dd32a0890c84486ec4d5935ed4fbb2f77b2fca3b6e27596"
NS
4 record(s)ns1.york.ac.uk. ns0.york.ac.uk. ns2.york.ac.uk. auth1.dns.cam.ac.uk.
SOA
1 record(s)nse0m.york.ac.uk. hostmaster.york.ac.uk. 2018184982 28800 7200 1209600 86400
CAA
14 record(s)0 issue "pki.goog" 0 issue "letsencrypt.org" 0 issuewild "sectigo.com" 0 issue "awstrust.com" 0 iodef "mailto:cert@york.ac.uk" 0 issuemail "pki.goog" 0 issuewild "letsencrypt.org;accounturi=https://acme-staging-v02.api.letsencrypt.org/acme/acct/273081663;validationmethods=dns-01" 0 issue "sectigo.com" 0 issuewild "letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/3235853391;validationmethods=dns-01" 0 issue "digicert.com" 0 issue "godaddy.com" 0 issuewild "letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/3268841801;validationmethods=dns-01" 0 issuevmc ";" 0 issuewild "awstrust.com"
DS
0 record(s)—
Not configured
DNSKEY
0 record(s)—
Not configured
RRSIG
0 record(s)—
Not configured
NSEC
0 record(s)—
Not configured
NSEC3
0 record(s)—
Not configured
SRV
0 record(s)—
Not configured
NAPTR
1 record(s)100 10 "s" "x-eduroam:radius.tls" "" _radsec._tcp.roaming.ja.net.
TLSA
0 record(s)—
Not configured
SSHFP
0 record(s)—
Not configured
SPF
Configuredv=spf1 include:_spf.york.ac.uk include:_spf.google.com -all
DMARC
Configuredv=DMARC1; p=reject; sp=reject; adkim=s; aspf=r; rua=mailto:JFF2GGVkzEr@dmarc-rua.mailcheck.service.ncsc.gov.uk;
DKIM
Selector selector1v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8B/4+zR/fum3Ah9rPJZV3igtbTH7lUELVEnad25zGLr2F6tI9x7KWgmqwBSUMBGEIkD8sEoOnpIaZFHYLp6/LMs5GVOZsiyFQIb2MsIn4GnICzmwwUmQtCMHSWb0n1THJmTWZLai/nf7lEitIy/K5SOUbbq/iULGCZh53dGY3SQIDAQAB;
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
University of York
Description
Outstanding teaching and research in a beautiful and historic city. York is a member of the prestigious Russell Group of research-intensive UK universities.
Final URL
https://www.york.ac.uk/
HTTP status
206
HTTP
Status
HTTP/2 200
Final URL
https://www.york.ac.uk/
Version
3
Server
cloudflare
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Sectigo Limited
CN
www.york.ac.uk
Valid from
2025-10-13T19:00:00-05:00
Valid until
2026-10-14T18:59:59-05:00
Days remaining
66
Protocol
TLSv1.2
Cipher
ECDHE-ECDSA-AES128-GCM-SHA256
Security headers
3 activeHSTSImplemented
Content Security PolicyImplemented
X-Content-Type-OptionsNot detected
X-Frame-OptionsImplemented
Referrer PolicyNot detected
Permissions PolicyNot detected
Cross-Origin-Opener-PolicyNot detected
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyNot detected
DNS propagationComparison across public resolvers
Public resolver comparison
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8144.32.128.115
39,81 ms
Cloudflare
1.1.1.1144.32.128.115
121,75 ms
Quad9
9.9.9.9144.32.128.115
373,17 ms
OpenDNS
208.67.222.222144.32.128.115
143,73 ms
AdGuard
94.140.14.14144.32.128.115
216,75 ms
IP, geolocation and ASNAssociated network information
144.32.128.115
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
alt4.aspmx.l.google.com
Port 25: Closed/unreachable - 1.2 ms - Port 465: Closed/unreachable - 4020.7 ms - Port 587: Closed/unreachable - 4020.8 ms -