Privacy Policy
Last updated: January 2026
Who We Are
DiagnosticSignal.com is a technical knowledge site covering PC hardware, vehicle diagnostics, industrial technology, and small business tech. The site is operated by J.D. Sweeney.
What Data We Collect
Analytics
We use Cloudflare Web Analytics to understand how visitors use the site. Cloudflare Analytics is privacy-focused — it does not use cookies or fingerprint individual users. Aggregate page view data (pages visited, referrer, country) is collected but no personally identifiable information is stored.
Email Newsletter
If you subscribe to the DiagnosticSignal newsletter, your email address is stored by our email service provider (MailerLite). You can unsubscribe at any time using the link in any email we send. We do not sell or share your email address with third parties.
Contact Form
If you use the contact form, your name, email address, and message are sent to us via our form provider. This data is used only to respond to your inquiry and is not stored long-term.
Affiliate Links
Some links on this site are affiliate links — primarily through the Amazon Associates program and similar networks. When you click these links and make a purchase, we may earn a small commission at no extra cost to you. Affiliate links are always disclosed.
Amazon and other affiliate partners may use cookies when you click affiliate links. Their data practices are governed by their own privacy policies.
Third-Party Services
- Cloudflare: CDN, DNS, and analytics. See Cloudflare's privacy policy.
- MailerLite: Email newsletter platform. See MailerLite's privacy policy.
- Amazon Associates: Affiliate program. See Amazon's privacy notice.
Cookies
DiagnosticSignal itself does not set tracking cookies. Affiliate partners and embedded third-party services may set cookies as described in their policies.
Your Rights
If you have provided your email address for the newsletter, you may request deletion of your data by emailing us or using the unsubscribe link in any newsletter. For data held by third-party services, please refer to those providers' policies.
Changes to This Policy
We may update this policy from time to time. The date at the top of this page reflects the most recent revision. Continued use of the site after changes constitutes acceptance of the updated policy.
Contact
Questions about this privacy policy? Contact us here.