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80
Total
70
DNS
95
Email
77
Security
35
Network
100
Availability
Domainacas.org.uk
IPv44
IPv60
MX records1
StatusActive
Domain technical report

Acas | Making working life better for everyone in Britain

acas.org.uk

Acas is the workplace expert for England, Wales and Scotland. We provide free and impartial advice for employers and employees, training and help resolve disputes.

Generated: 2026-08-10T07:45:59-05:00 · Cached result

JSONCSVPDFVisit site
IPv44
IPv60
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

4 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 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

1 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-RPT5 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

82 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓
IPv4 diversity35 / 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 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

4 record(s)
151.101.67.52
151.101.195.52
151.101.131.52
151.101.3.52

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 acas-org-uk.mail.protection.outlook.com.

TXT

18 record(s)
"teamviewer-sso-verification=e118f319c9e9472882fc4f39f360dcb9"
"apple-domain-verification=MhWdsYTWNCFPEZL7"
"v=spf1 include:spf.protection.outlook.com ip4:195.88.119.21 ip4:3.120.181.200/30 ip4:149.72.165.177 ip4:149.72.203.251 ip4:149.72.218.167 ip4:167.89.32.78 ip4:193.109.254.107 ip4:195.245.230.173 ip4:195.248.81.37 ip4:195.248.81.38 ip4:206.155.72.0/24 ip4:" "104.17.212.96 ip4:104.17.213.96 ip4:104.21.26.106 ip4:104.21.72.147 ip4:167.89.44.78 ip4:172.67.135.223 ip4:172.67.151.98 ip4:195.248.81.0/25 ip4:195.248.81.102 ip4:213.52.237.135/27 ip4:52.29.118.68 ip4:62.173.102.162 ip4:62.173.110.130 ip4:62.231.142.12" "2 ip4:79.125.4.84/26 ip4:79.173.188.190 ip4:193.109.254.0/23 ip4:194.106.220.0/23 ip4:195.245.230.0/23 ip4:46.226.48.0/21 ip4:85.158.136.0/21 ip4:95.131.104.0/21 ip4:216.82.240.0/20 ip4:67.219.240.0/20 ip4:117.120.16.0/21 ip4:103.9.96.0/22 ip4:34.247.139." "160 ip4:34.255.102.32/28 ip4:34.255.79.211 ip4:52.209.63.192/27 ip4:54.77.239.0 ip4:81.144.253.112/28 include:_spf.createsend.com include:spf-claramail.mail.eu.clara.net include:amazonses.com ip4:3.11.129.102 ip4:18.132.189.127 include:email.prnewswire.co" "m ip4:65.123.29.0/24 ip4:216.119.217.33 ip4:216.119.209.33 ip4:45.131.138.189 Include:timeforstorm.com ~all"
"p35ejssc9ve77ihchgj2t8cqjh"
"n3rp6su8i6dnkq0nfupavl8dog "
"abc9q9g1oeek4cv2omoq93q34a"
"MS=ms23116070"
"lop69p2rumqfcip9n0u8eme5lj"
"1ia41epnjhaekagpupvbkputl0"
"10nvr02r4m9lob2inguoiqea1b"
"google-site-verification=smhz3bC9Ni_JbtAPgdic3VpxR_bTaR-bb8MoeWyvpy8"
"google-site-verification=Gr2y3GWjEf9SWVO2Kx3FBrrto_RnYb2DYOMI21Rcq3Q"
"google-site-verification=MXyKSHk-4ZUHK2Y3DJtGN6eVToI_kB5Mle-IUj4qjj4"
"mjstq8mc83709pvsuekro6hdoj"
"s8e5vtreeuhbgmushh1ivnmn43"
"hs9hrd3piqo3gn3onlvv65u81c"
"cfoacrf1vn2fcalgclsi0d2s2q"
"60vemg5rm10ltuajq5gs8eoi8s."

NS

2 record(s)
dns0.star.co.uk.
dns1.star.co.uk.

SOA

1 record(s)
dns0.star.co.uk. abuse.star.net.uk. 2021091601 86400 7200 2419200 86400

CAA

0 record(s)
—

Not configured

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

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:spf.protection.outlook.com ip4:195.88.119.21 ip4:3.120.181.200/30 ip4:149.72.165.177 ip4:149.72.203.251 ip4:149.72.218.167 ip4:167.89.32.78 ip4:193.109.254.107 ip4:195.245.230.173 ip4:195.248.81.37 ip4:195.248.81.38 ip4:206.155.72.0/24 ip4:104.17.212.96 ip4:104.17.213.96 ip4:104.21.26.106 ip4:104.21.72.147 ip4:167.89.44.78 ip4:172.67.135.223 ip4:172.67.151.98 ip4:195.248.81.0/25 ip4:195.248.81.102 ip4:213.52.237.135/27 ip4:52.29.118.68 ip4:62.173.102.162 ip4:62.173.110.130 ip4:62.231.142.122 ip4:79.125.4.84/26 ip4:79.173.188.190 ip4:193.109.254.0/23 ip4:194.106.220.0/23 ip4:195.245.230.0/23 ip4:46.226.48.0/21 ip4:85.158.136.0/21 ip4:95.131.104.0/21 ip4:216.82.240.0/20 ip4:67.219.240.0/20 ip4:117.120.16.0/21 ip4:103.9.96.0/22 ip4:34.247.139.160 ip4:34.255.102.32/28 ip4:34.255.79.211 ip4:52.209.63.192/27 ip4:54.77.239.0 ip4:81.144.253.112/28 include:_spf.createsend.com include:spf-claramail.mail.eu.clara.net include:amazonses.com ip4:3.11.129.102 ip4:18.132.189.127 include:email.prnewswire.com ip4:65.123.29.0/24 ip4:216.119.217.33 ip4:216.119.209.33 ip4:45.131.138.189 Include:timeforstorm.com ~all

DMARC

Configured
v=DMARC1; p=reject; pct=100; rua=mailto:itbshyxi@ag.eu.dmarcadvisor.com,mailto:dmrua@acas.org.uk; ruf=mailto:itbshyxi@fr.eu.dmarcadvisor.com,mailto:dmruf@acas.org.uk; fo=1

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxsKihHaHl1pf6suLdtC2vEEsPz5HAFUUlfcHrWM9V2d0tG5AymkbBw+HCbX0NwvbuJXQ7TxySZnFCeeynU+EwT/1ePCVEPnQLf+zzUXR59LSDKRz+fN2J4CjyZ7Wqjk+iKJzg17hf9ZLpLPiqb2KmJhNBOoTNulYxvVOp32K0Ei/6wHtns5/2Pdv0SPgTTUkyhwKWlNS30LMd+QK9qdYH0a7wZtoK8sHckeJczTmSkAKMD3MBQkl0u1NX1P6QMWYEMYYbSP+jVxZZ0/D8ZYXb7jNBctHrI2X0Z1Lt+TPKihhS4UHmejspuceMgcEe51BiZ0TSRA5ezNAAsGALM8GbQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Acas | Making working life better for everyone in Britain
Description
Acas is the workplace expert for England, Wales and Scotland. We provide free and impartial advice for employers and employees, training and help resolve disputes.
Final URL
https://www.acas.org.uk/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.acas.org.uk/
Version
3
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GoDaddy.com, Inc.
CN
*.acas.org.uk
Valid from
2025-10-03T02:14:43-05:00
Valid until
2026-11-01T06:32:21-06:00
Days remaining
82
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
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

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
151.101.131.52, 151.101.195.52, 151.101.3.52, 151.101.67.52
159,65 ms
Cloudflare
1.1.1.1
151.101.131.52, 151.101.195.52, 151.101.3.52, 151.101.67.52
134,95 ms
Quad9
9.9.9.9
151.101.131.52, 151.101.195.52, 151.101.3.52, 151.101.67.52
175,51 ms
OpenDNS
208.67.222.222
151.101.131.52, 151.101.195.52, 151.101.3.52, 151.101.67.52
149,28 ms
AdGuard
94.140.14.14
151.101.131.52, 151.101.195.52, 151.101.3.52, 151.101.67.52
153,80 ms

IP, geolocation and ASNAssociated network information

151.101.67.52

No data
success
No
country
region
city
asn
organization
isp

151.101.195.52

No data
success
No
country
region
city
asn
organization
isp

151.101.131.52

No data
success
No
country
region
city
asn
organization
isp

151.101.3.52

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
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

acas-org-uk.mail.protection.outlook.com

Port 25: Closed/unreachable - 26.8 ms - 
Port 465: Closed/unreachable - 4054.9 ms - 
Port 587: Closed/unreachable - 4041.3 ms -

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