To insert verifier to the listing, copy one of following HTML codes to the cache listing.
Code with image
<center><a href="https://validator.gcm.cz/index.php?uuid=3a3c4127-62db-4098-992e-680b12c5e97f"><img src="https://validator.gcm.cz//image.php?uuid=3a3c4127-62db-4098-992e-680b12c5e97f" alt="GCM Validator" title="Click to verify coordinates" /><br />Click to verify coordinates</a></center>
Only text link
<a href="https://validator.gcm.cz/index.php?uuid=3a3c4127-62db-4098-992e-680b12c5e97f">Click to verify coordinates</a>