Privacy Policy

Last updated: 2026-04-29

Who we are

This site (photonics.primarysourced.com and its company sub-sites) is operated by Ward Elst, an independent investor-analyst based in Belgium. Contact: ward@elst.be.

What data we collect

We do not require user accounts. We do not collect names, email addresses, or other personally identifying information unless you choose to send them to us by email.

The site uses local browser storage (localStorage) to remember your theme preference (light/dark) and your cookie-consent choice. This data stays in your browser and is not transmitted to us.

Cookies and third-party services

The site uses the following third-party services that may set cookies or collect usage data:

• Google AdSense — displays ads on this site. Google may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google Ads Settings. For users in the EEA/UK, ads are served subject to your consent choice on this site.
• Cloudflare — provides hosting, CDN, and basic security. Cloudflare may collect non-personally-identifiable request metadata for performance and abuse prevention.
• Pagefind (search) and Google Fonts — static assets loaded from CDNs; no user-identifying data is collected by these services on our pages.

Your choices

• Cookie consent — on first visit, a banner asks whether you accept advertising cookies. Your choice is stored locally in your browser. You can clear it any time by clearing site data in your browser settings.
• Ad personalization — Google offers controls at google.com/settings/ads to opt out of personalized advertising.
• Do Not Track — we do not currently respond to DNT signals because there is no industry-wide standard for handling them.

EEA/UK and GDPR

For visitors in the EEA and the UK, the legal basis for serving personalized advertising is your consent, collected via the cookie banner. If you decline, ads may still be shown but should be non-personalized. Under GDPR you have the right to access, correct, or delete personal data we hold about you; in practice we hold none unless you have emailed us, in which case email ward@elst.be with your request.

Children

This site is not directed at children under 16 and does not knowingly collect data from them.

Changes

This policy may be updated occasionally. Material changes will be reflected by the "Last updated" date above.