Security headers checker
Which of the six headers that protect a website’s visitors are in place, and how to fix the rest.
Free tools
Check your own security, free.
Checks we use in our own work, put here for anybody: your website, your email domain, your email address, your passwords and your antivirus. Plain English results, no sign up, and nothing you check is kept in our database.
The tools
DMARC and SPF checker
Whether somebody could send email pretending to be you, and which of SPF, DKIM and DMARC to fix.
Password checker
Find out whether your password has leaked. Or rather, find out something more useful than that.
Email breach checker
Which known data breaches an email address appears in, what leaked, and what to do about it.
Antivirus and web filter test
Find out whether your antivirus and web filter are switched on, using the harmless EICAR test file.
Put them together
A 15 minute security check for your business
The tools cover part of a seven point check any small business can run for free in about fifteen minutes. The rest need no tool at all, only the right question.
Next step
Want somebody to look properly?
These tools see what anybody on the internet can see. Tell us what you are running and we will tell you what is worth looking at behind it.