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Total

DNS

Email

Security

Network

Availability

Domainherts.ac.uk

IPv41

IPv60

MX records2

StatusActive

Domain technical report

Just a moment...

herts.ac.uk

Generated: 2026-08-09T22:57:24-05:00 · Cached result

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IPv41

IPv60

MX2

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 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

88 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers31 / 35 pts · Security

8 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: 78.41.245.43.in-addr.arpa

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

HTTP/2 403

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

43.245.41.78

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

10 eu-smtp-inbound-1.mimecast.com.
10 eu-smtp-inbound-2.mimecast.com.

TXT

13 record(s)

"QuoVadis=1634f477-fa09-4357-bea1-9989ddb3f08d"
"ZOOM_verify_4A7rPWC2R02nbZ6cteYQTg"
"pardot950802=e16628c429537974bb767c85df0e70295120012176cc63d1be2b8e4c83c57a9b"
"v=spf1 ip4:147.197.0.0/16 include:amazonses.com include:mailrelay.t1cloud.com include:spf.protection.outlook.com ip4:3.8.217.160 ip4:109.104.124.78 ip4:212.247.25.0/25 ip4:134.213.249.144 ip4:52.151.82.88 ip4:52.151.85.181 ip4:51.140.71.9" " ip4:51.140.64.42 ip4:52.151.86.16 ip4:51.140.33.170 include:helpscoutemail.com include:eu._netblocks.mimecast.com include:_spf.salesforce.com include:sendgrid.net ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/" "23 " "ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48" ".0/20 " "ip4:204.220.160.0/20 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:45.131.138.189 ip4:198.244.60.0/22 ip4:46." "175.13.0/24 -all"
"QuoVadis=a4939998-db82-42a0-a3a4-6ba15f1d4f37"
"pardot950802=12be1d54789ccfe0944e8461bdf3112922fc541c069a9f23e86342c7e456f52b"
"adobe-idp-site-verification=5a0fed58-566c-4458-a773-478321932fa9"
"MS=ms32031689"
"MS=ms82038790"
"anthropic-domain-verification-3b3a8j=Ka2J3qfkpFNUqNYLRjB6qfN08"
"apple-domain-verification=hfPteqmx9XxbSwKN"
"google-site-verification=LqigVFcLw-AMUXk6-OW_Wct5wAZ1_Kf1QT62JSJ0F7c"
"086F8602-C051-47DE-BE04-19B54A040AA9"

NS

4 record(s)

ns3.ja.net.
gemini.herts.ac.uk.
helios.herts.ac.uk.
dns2.herts.ac.uk.

SOA

1 record(s)

helios.herts.ac.uk. postmaster.helios.herts.ac.uk. 2026030118 3600 600 1209600 3600

SPF

Configured

v=spf1 ip4:147.197.0.0/16 include:amazonses.com include:mailrelay.t1cloud.com include:spf.protection.outlook.com ip4:3.8.217.160 ip4:109.104.124.78 ip4:212.247.25.0/25 ip4:134.213.249.144 ip4:52.151.82.88 ip4:52.151.85.181 ip4:51.140.71.9 ip4:51.140.64.42 ip4:52.151.86.16 ip4:51.140.33.170 include:helpscoutemail.com include:eu._netblocks.mimecast.com include:_spf.salesforce.com include:sendgrid.net ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.160.0/20 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:45.131.138.189 ip4:198.244.60.0/22 ip4:46.175.13.0/24 -all

DMARC

Configured

v=DMARC1; p=reject; pct=100; rua=mailto:c6860e8c@mxtoolbox.dmarc-report.com,mailto:postmaster@herts.ac.uk; ruf=mailto:c6860e8c@forensics.dmarc-report.com; sp=none; aspf=r; ri=86400

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC703Si75eeComp3dDqNeQsdD9eIb1109SaHXX+h/rwTBFILWeRc56Iwt93w6KFb3LV82SITfvQbGVN7qi+WXhaHvSURBQQrHVqcFkYC555O6QCVwaP0U6vVs5REhHphG2pk7ZLbZxaaWDGPrWoB8kMEvGv4XhPfQvsm1aYyI2EEwIDAQAB; n=1024,1451183573,1466994773

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Just a moment...

Description

Final URL

https://herts.ac.uk/

HTTP status

403

HTTP

Status

HTTP/2 403

Final URL

https://herts.ac.uk/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

herts.ac.uk

Valid from

2026-08-08T02:46:20-05:00

Valid until

2026-11-06T01:46:19-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

8 active

—

HSTSNot detected

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

✓

Permissions PolicyImplemented

✓

Cross-Origin-Opener-PolicyImplemented

✓

Cross-Origin-Embedder-PolicyImplemented

✓

Cross-Origin-Resource-PolicyImplemented

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

43.245.41.78

34,57 ms

Cloudflare

1.1.1.1

43.245.41.78

236,73 ms

Quad9

9.9.9.9

43.245.41.78

230,44 ms

OpenDNS

208.67.222.222

43.245.41.78

135,11 ms

AdGuard

94.140.14.14

43.245.41.78

135,98 ms

IP, geolocation and ASNAssociated network information

43.245.41.78

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

eu-smtp-inbound-1.mimecast.com

Port 25: Closed/unreachable - 0.9 ms - 
Port 465: Closed/unreachable - 4021.1 ms - 
Port 587: Closed/unreachable - 95.6 ms - 220 eu-smtp-inbound-1.mimecast.com ESMTP; Mon, 10 Aug 2026 04:57:23 +0100

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