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             <h1><a href="#sitewide-advertising-industry-opt-out">Sitewide advertising industry opt-out</a></h1>
 
-            <p>The <a href="https://iabtechlab.com/wp-content/uploads/2020/12/ads-txt-v1.0.3_Draft_in_Public_Comment_IABTechLab_2020-12.pdf">ads.txt specification</a>
+            <p>The <a href="https://iabtechlab.com/wp-content/uploads/2021/03/ads.txt-1.0.3.pdf">ads.txt specification</a>
             provides a way to list the authorized sellers of ads for a domain. The
             <a href="https://iabtechlab.com/wp-content/uploads/2019/03/app-ads.txt-v1.0-final-.pdf">app-ads.txt specification</a>
             extends this to cover apps tied to the domain. As a domain owner, this is a valuable