Last updated November 2026
What this site looks at and keeps
The short version: both checks run without an account, results stay in your browser, and we only store anything about you when you send the contact form.
The outside check
When you enter a domain, our server looks up public information about it:
- its DNS records (mail, SPF, DKIM and DMARC);
- its website’s certificate and response headers, using one ordinary request to the site;
- public certificate logs (crt.sh, with Cert Spotter as a backup) for other addresses under the domain;
- Hudson Rock’s index of logins stolen by malware, searched by domain name.
Nothing is logged in to, probed for weaknesses or changed. Those outside services receive the domain name as part of the lookup. We don’t save the domain or the result on our servers. The result is held in your browser until you close the tab. Please only check a domain you own or look after.
The inside check
Your answers are saved in your own browser so you can stop and resume. They are not sent to us. Clearing your browser’s site data removes them.
The contact form
If you ask for the full report, we store your name, email address, company, phone number if you gave one, your score and which check you took. TeamLogic IT of Crystal Lake uses these to follow up with you about your results, and we email you a copy of the report. We don’t sell them or pass them to anyone else for marketing.
After the outside check we also look up the email address you gave us in XposedOrNot’s index of known data breaches, which means that service receives the address. The result is shown to you and not stored by us.
The tools
The network map and the airlock run entirely in your browser. What you paste or drop into them is not sent to us or to anyone else, and we keep no record of it. It is gone when you close the tab. A snapshot, key or document you save goes to your own computer. If you tick “Remember on this computer” in the network map, that map is kept in your browser’s own storage until you untick it; it is still not sent anywhere.
Cookies and tracking
This site sets no advertising or analytics cookies. Our hosting provider keeps standard request logs, which include IP addresses, and we use your IP address briefly to limit how many checks one connection can run.
Who handles the data
- Vercel hosts the site.
- Supabase holds the contact details you send.
- Resend delivers the report email.
- Hudson Rock, XposedOrNot, crt.sh and Cert Spotter answer the lookups described above.
Seeing or deleting your details
Call (847) 449-6080 or email SupportCrystalLakeIL@teamlogicit.com and we’ll show you what we hold or delete it.