Is your domain set up properly?
Enter a domain and we check the things that quietly cause trouble: email authentication, SSL, DNS, security headers, exposed files, performance and the SEO basics. It takes about thirty seconds and runs from our server, so you get a real result, not a guess.
Free, no signup · UKAS ISO 27001 certified team · Cyber Essentials certification body
Checking domain...
Get the full report
We email you a link to this report (it works for 30 days), or generate a link to copy for a colleague, your IT provider, or your records.
What we detected
What we check
- SPF, DKIM and DMARC email authentication
- SSL certificate validity and expiry
- DNS configuration and nameservers
- Security headers (CSP, HSTS, X-Frame-Options)
- Exposed sensitive files
- Performance and compression
- SEO basics (title, meta, H1)
Why it matters
Misconfigured DNS, missing email authentication and weak security headers are the most common gaps we find. They are easy to fix but often go unnoticed until someone spoofs your domain or your email lands in spam.
Need help fixing something?Common questions
Is it safe to run this check?
Yes. The check is read only: we look up your public DNS records and fetch your public pages the way a browser would. We do not log in, scan ports, or attempt anything intrusive. Please only check a domain you own or manage.
What do SPF, DKIM and DMARC actually do?
They are DNS records that prove an email genuinely came from your domain. SPF lists which servers may send for you, DKIM adds a digital signature to each message, and DMARC tells receiving servers what to do when a message fails those checks. Missing records are the most common reason legitimate email lands in spam, and the easiest spoofing gap to close.
What is a good score?
Ninety or above (grade A) means the basics are in order. Seventy to ninety usually means a handful of quick DNS or header fixes. Below seventy there is normally at least one thing worth fixing this week, and anything marked critical is costing you email deliverability or safety right now.
Why does another tool give a different score?
Every checker weighs things differently, so the number matters less than the list. Each finding here tells you what we checked, what it means, and how to fix it. Fix the criticals and the score looks after itself, whichever tool you use.
What happens to the domain I enter?
The check runs from our server and the result is shown to you. We keep a log of checked domains and scores so we understand how the tool is used. Nothing is stored against your name unless you ask for the report by email or create a share link, and report links expire after 30 days.
Fair use and disclaimer: run this check only against domains you own or are authorised to assess. Results are an automated snapshot for guidance, not a security audit and not professional advice. Report links can be opened by anyone who has the link and expire after 30 days. If you leave your email we use it to send the report and may follow up once about the findings. See our privacy policy.
Found something worth acting on?
We can resolve DNS, email, SSL and security issues for you. Book a consultation and we reply within one working day. You will speak to an engineer, not a salesperson.