Free checks for your email, domain and IT
Each check reads public information from your own browser, says what it finds in plain words and suggests a first step. Nothing is sent to us unless you choose to send it.
Eight free tools
Pick the question you want answered
None asks you to sign up, and none gives you a score. Each says what it found, what it cannot see and what to do first.
Email health check
Why your mail may land in spam or be faked in your name. It reads your mail server, SPF with its lookup count, DKIM, DMARC, MTA-STS, TLS reporting and BIMI, and says what to fix first.
- MX
- SPF
- DKIM
- DMARC
- MTA-STS
- BIMI
Domain health check
Whether the domain itself is safe and looked after: DNSSEC, its nameservers and whether the registry agrees, who may issue certificates for it, and when the registration runs out.
- DNSSEC
- NS
- CAA
- Expiry
SPF record builder
Tick the services that send your mail and get a draft SPF record, with its DNS lookups counted against the limit of 10.
- include
- ip4
- mx
- ~all
DMARC record builder
Choose from plain options and get a draft DMARC record, with a reporting address and a monitoring policy to start from.
- p=
- sp=
- t=
- rua=
Microsoft 365 setup check
Check what is visible outside your Microsoft 365 setup: whether Microsoft recognises your domain, how your mail is routed, and whether the records Microsoft asks for are in place.
- Tenant
- Mail route
- DKIM
- Autodiscover
Email header analyser
Paste a message's headers to read the route it took, which checks it passed and why it went to junk. The headers never leave your browser.
- Received
- SPF
- DKIM
- DMARC
Email signature generator
A clean signature built in your browser from your details, with the steps to add it in Outlook and Gmail.
- Outlook
- Gmail
- Copy and paste
IT health self-check
Ten plain questions about backups, sign-ins and devices that you can answer without technical help. You get a short report and your first step.
- Backups
- Sign-ins
- Devices
What happens to what you type
How each tool uses what you type
The checks run on your own device. Your browser asks the public records directly, and the answer is written on your screen. Our server is not in that path, and nothing is stored. No tool page shows ads.
- The header analyser makes no request at all. The signature generator asks only for your own logo and banner.
- There is no sign-up, and nothing stands between you and the result.
- A result reaches us only if you press Send us this report and then send the form.
Every check
Only if you choose
Our server is not in the first line. The second happens only when you send the form.
Found something to fix?
Send us the report from any check, or tell us what is going wrong. We'll tell you plainly what it takes to fix, before any work starts.