Launch 1Available now
Guardian
Paste a suspicious link or message and get a plain language verdict with the evidence and what to do next. Files come later.
You give it: Link or message
Check a link or messageFree tools
Free security checks for the public
Public tools that explain what they find in plain language. The domain security check is live; the others launch here one by one.
No account
You will open a tool and use it. No sign up, no email.
Only what you give us
Tools will only look at what you paste or at public information. They never scan systems for you.
Not used for training
What you submit will be processed for your answer and never used to train models.
Four free checks, three live and one on the way
Launch 2Available now
Domain security check
Grade any domain's email and web security: SPF, DKIM, DMARC, DNSSEC, TLS and security headers, with the fixes.
You give it: Domain name
Check a domainLaunch 3Available now
Lookalike domain finder
See registered domains that imitate your brand and could be used to phish your customers or staff.
You give it: Domain name
Find lookalikesLaunch 4Planned
AI prompt safety check
Check a system prompt against known injection and jailbreak techniques, with hardening advice.
You give it: System prompt
Need more than a free check?
Our team tests, advises and responds for organisations today. Tell us what you need to protect.
Under attack right now?
Ransomware, account takeover or fraud in progress. Email us with URGENT in the subject and it is read before anything else.
Get incident response