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Advertising Measurement Notice

National Marble Restoration
Last Updated: November 12, 2026

This notice explains an optional choice offered on our Free Estimate form. It adds to our Privacy Policy and Cookie Policy.

What This Choice Does

If you tick the optional box on the Free Estimate form, then after your request is successfully received, the email address and phone number you entered are shared with Google so that Google Ads can measure whether our ads led to your request (Google calls this “enhanced conversions”).

What Is Shared and How

  • Only the email address and phone number you typed into the form.
  • Before anything leaves your browser, they are normalized (email: spaces removed and lowercased, and for Gmail addresses dots and “+” suffixes removed; phone: international format, for example +1 for US numbers).
  • They are then converted in your browser into SHA-256 hash codes. Only those hash codes are sent to Google, never the plain email or phone number.
  • Hashing is not anonymization. Google can compare the hash codes with information it already holds, for example to recognize a signed-in Google account.

Why We Use It

To measure how well our Google Ads lead to estimate requests and to improve our advertising. Google processes this information under its own terms and policies. Learn how Google uses information from sites that use its services at https://business.safety.google/privacy/.

Your Choice

  • The box is never pre-ticked, and ticking it is not required. Your estimate request is sent and handled the same way either way.
  • Without your choice, we still count that a request was made, but we do not share your email or phone number with Google.
  • If your browser sends a Global Privacy Control signal, or you rejected marketing in our Cookie Settings, nothing is shared even if the box is ticked.
  • Your choice is remembered only as a small first-party cookie named nm_ad_matching that records the notice version, your choice and the date. It contains no email, phone number or name.

How to Withdraw

You can withdraw at any time with the button below or by leaving the box unticked on your next request. Withdrawing stops future sharing; it cannot recall information already sent to Google. For questions, contact us using the details in our Privacy Policy.