Acceptable use policy

Last updated: 19 October 2026

One set of rules for everything KT8 makes. Use our products for honest work on websites, domains and email you own or look after, and never to harm anyone.

Everyone, on every product

You must not use KT8 Tools, Short links, KT8 Mail, KT8 Blog Builder or anything else we make to:

• send spam, phishing or malware, or trick people into giving away passwords, money or personal details;
• pretend to be someone else, including KT8;
• publish or share anything illegal, or anything that breaks someone else’s rights;
• harass, threaten or exploit anyone;
• overload, attack or probe anyone else’s systems, or try to break into ours.

KT8 Tools

• Only test websites, domains and email addresses that you own or have permission to test.
• Don’t use the mail tester to tune spam, or run the speed test, DNS checker or Link Inspector against a website over and over.
• Don’t get round the limits on your plan, trial or credits, for example with several accounts.
• API keys follow the same rules as the tools themselves. Keep them private.

Short links

• Don’t hide where a link really goes, or link to scams, phishing, malware or anything illegal.
• Every link is checked, and links that break these rules are switched off.

KT8 Mail and KT8 Blog Builder

• Both run in your own Cloudflare account, so Cloudflare’s own terms apply as well as these.
• Send email only to people who expect it from you, and let them unsubscribe from anything you send in bulk.
• Don’t use your blog to host scams, malware or anything illegal.

If the rules are broken

We can switch off the link, test, key or account involved, and close accounts that keep breaking the rules. That includes stopping installs and updates from your KT8 account. We’ll tell you why unless the law or a safety reason stops us, and we pass on reports to Cloudflare or the authorities when we have to. These rules sit alongside our terms of service and privacy policy.

Report abuse

If someone is using one of our products to harm people, please tell us. We read every report, and you don’t need an account to send one.

A harmful short link

If an 8t.uk link leads to a scam, phishing page or malware, report it on 8t.uk/report. If several different people report a new link within a day, it is switched off straight away until we have looked at it.

Not sure where a link goes? Add a + to the end of it to see the full address before you visit. How we keep short links safe.

Someone misusing our products

For example, using the mail tester to check spam before sending it, or running the speed test or DNS checker against a website over and over. Email abuse@kt8.com with the website or email address involved and roughly when it happened.

A message pretending to be from KT8

We will never ask for your password or payment details by email. If you get a message like that which uses our name, forward it to abuse@kt8.com and then delete it.

What we do with a report

• We look at every report ourselves.
• If something breaks our rules, we switch off the link, test or account involved.
• If we got it wrong and blocked something by mistake, email abuse@kt8.com and we’ll take another look.