S.txt
Authorized Digital Sellers, or ads.txt is an IAB Tech Lab initiative that helps ensure that your digital ad inventory is only sold through sellers (such as AdSense) who you've identified as authorized. Creating your own ads.txt file gives you more control over who's allowed to sell ads on your site and helps prevent counterfeit inventory from being presented to advertisers.
s.txt
We strongly recommend that you use an ads.txt file. It can help buyers identify counterfeit inventory and help you receive more advertiser spend that might have otherwise gone toward that counterfeit inventory.
If you use ads.txt, you must include your publisher ID in your ads.txt file. If there's an ads.txt file present on your site and your publisher ID is missing from it, Google will reject all ad requests from your site.
AdSense provides a personalized ads.txt file that you can download from your account. The personalized ads.txt file includes your publisher ID. Your publisher ID must be included and formatted correctly for your ads.txt file to be verified.
To verify that you published your file correctly, check that you successfully see your file's content when you access the ads.txt URL ( ) in your web browser. If you can see the file in your web browser, it's likely that AdSense will successfully find it.
The mission of the ads.txt project is simple: Increase transparency in the programmatic advertising ecosystem. Ads.txt stands for Authorized Digital Sellers and is a simple, flexible and secure method that publishers and distributors can use to publicly declare the companies they authorize to sell their digital inventory.
By creating a public record of Authorized Digital Sellers, ads.txt will create greater transparency in the inventory supply chain, and give publishers control over their inventory in the market, making it harder for bad actors to profit from selling counterfeit inventory across the ecosystem. As publishers adopt ads.txt, buyers will be able to more easily identify the Authorized Digital Sellers for a participating publisher, allowing brands to have confidence they are buying authentic publisher inventory.
What is ads.txt?Ads.txt is a simple, flexible, and secure method for publishers and distributors to declare who is authorized to sell their inventory, improving transparency for programmatic buyers.
Ads.txt works by creating a publicly accessible record of authorized digital sellers for publisher inventory that programmatic buyers can index and reference if they wish to purchase inventory from authorized sellers. First, participating publishers must post their list of authorized sellers to their domain. Programmatic buyers can then crawl the web for publisher ads.txt files to create a list of authorized sellers for each participating publisher. Then programmatic buyers can create a filter to match their ads.txt list against the data provided in the OpenRTB bid request.
A robots.txt file tells search engine crawlers which URLs the crawler can access on your site. This is used mainly to avoid overloading your site with requests; it is not a mechanism for keeping a web page out of Google. To keep a web page out of Google, block indexing with noindex or password-protect the page.
If you use a CMS, such as Wix or Blogger, you might not need to (or be able to) edit your robots.txt file directly. Instead, your CMS might expose a search settings page or some other mechanism to tell search engines whether or not to crawl your page.
You can use a robots.txt file for web pages (HTML, PDF, or other non-media formats that Google can read), to manage crawling traffic if you think your server will be overwhelmed by requests from Google's crawler, or to avoid crawling unimportant or similar pages on your site.
If your web page is blocked with a robots.txt file, its URL can still appear in search results, but the search result will not have a description. Image files, video files, PDFs, and other non-HTML files will be excluded. If you see this search result for your page and want to fix it, remove the robots.txt entry blocking the page. If you want to hide the page completely from Search, use another method.
Use a robots.txt file to manage crawl traffic, and also to prevent image, video, and audio files from appearing in Google search results. This won't prevent other pages or users from linking to your image, video, or audio file.
Before you create or edit a robots.txt file, you should know the limits of this URL blocking method. Depending on your goals and situation, you might want to consider other mechanisms to ensure your URLs are not findable on the web.
It includes the complete directory list required to locate the file. For example, /user/Pynative/data/sales.txt is an absolute path to discover the sales.txt. All of the information needed to find the file is contained in the path string.
This is how everybody in python land starts. You create a requirements.txt file and start putting dependencies your app needs. After editing the file, you run pip install -r requirements.txt to install all the dependencies into your virtual environment.
But here is the problem. Your requirements.txt contains just the first degree dependencies and their versions. Your dependencies also have dependencies (2nd+ degree), and these versions are not necessarily locked down.
Not having these versions locked down means that running pip install -r requirements.txt on different systems or at different points of time will resolve to different sets of package versions. It opens a space for security issues and your app breaking completely. 041b061a72