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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Ads.txt</id>
		<title>Ads.txt - Revision history</title>
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		<updated>2026-05-06T11:57:03Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=35010&amp;oldid=prev</id>
		<title>Dan Tobias at 23:44, 29 February 2020</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=35010&amp;oldid=prev"/>
				<updated>2020-02-29T23:44:21Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
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			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 23:44, 29 February 2020&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=2017&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=2017&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Ads.txt''' is a special file promoted by the Interactive Advertising Bureau (IAB, not to be confused with the Internet Architecture Board) to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to [[Robots Exclusion Standard|robots.txt]]. The filename in actual use is all-lowercase, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/del&gt;ads.txt&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/del&gt;, but the spec refers to the standard as the capitalized &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/del&gt;Ads.txt&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Ads.txt''' is a special file promoted by the Interactive Advertising Bureau (IAB, not to be confused with the Internet Architecture Board) to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to [[Robots Exclusion Standard|robots.txt]]. The filename in actual use is all-lowercase, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;ads.txt&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt;&lt;/ins&gt;, but the spec refers to the standard as the capitalized &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;Ads.txt&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt;. There is also a related spec for an &amp;quot;Authorized Sellers for Apps&amp;quot; file, &amp;lt;code&amp;gt;app-ads.txt&amp;lt;/code&amp;gt;&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Specs ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Specs ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://iabtechlab.com/wp-content/uploads/2017/09/IABOpenRTB_Ads.txt_Public_Spec_V1-0-1.pdf &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Official &lt;/del&gt;spec v1.0.1]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://iabtechlab.com/wp-content/uploads/2017/09/IABOpenRTB_Ads.txt_Public_Spec_V1-0-1.pdf &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Ads.txt &lt;/ins&gt;spec v1.0.1&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* [https://iabtechlab.com/wp-content/uploads/2019/03/IAB-OpenRTB-Ads.txt-Public-Spec-1.0.2.pdf Ads.txt spec v1.0.2]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* [https://iabtechlab.com/wp-content/uploads/2019/03/app-ads.txt-v1.0-final-.pdf Authorized Sellers for Apps spec v1.0&lt;/ins&gt;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample Files ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample Files ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;http&lt;/del&gt;://www.nytimes.com/ads.txt New York Times ads.txt]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;https&lt;/ins&gt;://www.nytimes.com/ads.txt New York Times ads.txt]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Other links and references ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Other links and references ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://iabtechlab.com/ads-txt/ Official site]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://iabtechlab.com/ads-txt/ Official site]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://support.google.com/adsense/answer/7532444?hl=en Ads.txt guide (Google)]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:File formats with a distinctive filename]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:File formats with a distinctive filename]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=29913&amp;oldid=prev</id>
		<title>Dan Tobias at 01:38, 9 May 2018</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=29913&amp;oldid=prev"/>
				<updated>2018-05-09T01:38:04Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
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				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 01:38, 9 May 2018&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=2017&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=2017&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Ads.txt''' is a special file promoted by the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Internet &lt;/del&gt;Advertising Bureau to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to [[Robots Exclusion Standard|robots.txt]]. The filename in actual use is all-lowercase, ''ads.txt'', but the spec refers to the standard as the capitalized ''Ads.txt''.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Ads.txt''' is a special file promoted by the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Interactive &lt;/ins&gt;Advertising Bureau &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(IAB, not to be confused with the Internet Architecture Board) &lt;/ins&gt;to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to [[Robots Exclusion Standard|robots.txt]]. The filename in actual use is all-lowercase, ''ads.txt'', but the spec refers to the standard as the capitalized ''Ads.txt''.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Specs ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Specs ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=29912&amp;oldid=prev</id>
		<title>Dan Tobias: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Web |extensions={{ext|txt}} |released=2017 }} '''Ads.txt''' is a special file promoted by the Internet Advertising Bureau to let a ...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Ads.txt&amp;diff=29912&amp;oldid=prev"/>
				<updated>2018-05-09T01:36:49Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Web |extensions={{ext|txt}} |released=2017 }} &amp;#039;&amp;#039;&amp;#039;Ads.txt&amp;#039;&amp;#039;&amp;#039; is a special file promoted by the Internet Advertising Bureau to let a ...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=electronic&lt;br /&gt;
|subcat=Web&lt;br /&gt;
|extensions={{ext|txt}}&lt;br /&gt;
|released=2017&lt;br /&gt;
}}&lt;br /&gt;
'''Ads.txt''' is a special file promoted by the Internet Advertising Bureau to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to [[Robots Exclusion Standard|robots.txt]]. The filename in actual use is all-lowercase, ''ads.txt'', but the spec refers to the standard as the capitalized ''Ads.txt''.&lt;br /&gt;
&lt;br /&gt;
== Specs ==&lt;br /&gt;
* [https://iabtechlab.com/wp-content/uploads/2017/09/IABOpenRTB_Ads.txt_Public_Spec_V1-0-1.pdf Official spec v1.0.1]&lt;br /&gt;
&lt;br /&gt;
== Sample Files ==&lt;br /&gt;
* [http://www.nytimes.com/ads.txt New York Times ads.txt]&lt;br /&gt;
&lt;br /&gt;
== Other links and references ==&lt;br /&gt;
* [https://iabtechlab.com/ads-txt/ Official site]&lt;br /&gt;
&lt;br /&gt;
[[Category:File formats with a distinctive filename]]&lt;/div&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

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