gmb.org.uk

.uk crawl

First seen 2026-04-18 · Last seen 2026-05-12 · ok HTTP/1.1 200 3868 ms crawled 2026-05-12

GB · 51.89.172.213 · AS16276 OVH SAS

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Make Work Better | GMB Union
Description: GMB union is an organising and campaigning union for all workers.
Language: en
Canonical: https://www.gmb.org.uk/

Open Graph

title: GMB Union Website
description: GMB Union is an organising and campaigning union for all workers.

Technology

Server: nginx

Analytics

Google Tag Manager

Third-party hosts loaded (2)

apvvhqkauq.cloudimg.io×38
www.googletagmanager.com×1

Social

Registration

Registrar

CloudFloorDNS LLC

Created

1995-08-10

Expires

2026-08-10 80 days left

Updated

2025-08-18

Name servers

dns0.mtgsy.com.
dns1.mtgsy.co.uk.
dns2.mtgsy.co.uk.
dns3.mtgsy.com.
dns4.mtgsy.com.

DNS records live

NS

dns0.mtgsy.com
dns1.mtgsy.co.uk
dns2.mtgsy.co.uk
dns3.mtgsy.com
dns4.mtgsy.com

MX

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

TXT

Show 9 TXT records

0ed1fe018aa4e4710cc4e848c0bbf6d7315bd6f58a
0ed1fe018afef03d2c1c3c4aa0835eba6018ba58b5
77A871FD2B
A78RT36PM4
access-domain-verification=2bf3d16a022374f093c22966cc228a4b776cd4028b486759e1d8cdb0971ce29a
access-domain-verification=598396cd635145c3da914a18496dedbfabb6ec5cc2787d7bc74aa588af1cf9f1
access-domain-verification=72334db25f276f2410badc58a0a1c676f82aa361f8f1d08e49a3b39691b56405
amazonses:t6F8pvhkC/nhf1g2inpQ7aNetbOAOpGu4Reka8+ho+g=
sophos-domain-verification=2af915bbe0d9916b278380d62aed28f50a0edcdb7bd714e1c05c09bd6f60f368

Verified for

Airtable
Apple
Google
Microsoft 365

Email authentication partial

SPF

v=spf1 a mx ip4:195.88.237.116/28 ip4:46.32.245.128/32 ip4:81.136.250.8/32 ip4:93.114.86.98 include:_netblocks.mimecast.com include:spf.protection.outlook.com include:_eu-smtp-delivery-221.mimecast.com -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc@gmb.org.uk; ruf=mailto:dmarc@gmb.org.uk; fo=1;

policy: none (monitoring only)

DKIM

k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0i8kqUiCcpA/Wm+OmXujfuJO+gT0/ouBg5I5SnOEp9POlPiT+CCDBvKLOMe6/d1jd4hOuELKAFJ7eKF+Qs…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0HaQ1nu+h7KVdINdlu9JQiAxV5I65dcKQxOUBeQ8mIvC9BsKw4pNuojrEHfOfAcXZcuppGOl+Bxbraru09AnaYp…

selectors probed

Certificate (current)

R13

from 2026-04-24 to 2026-07-23

Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.gmb.org.uk/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=15768000; includeSubDomains