What will happen if I don't follow robots.txt while crawling? [duplicate]

I am new to web crawling and I am testing my crawlers. I have been doings tests on various sites for testing. I forgot about robots.txt file ...

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Will Stack Overflow disallow the GPT web crawler?

Yes, Stack Overflow has blocked OpenAI's web crawler, GPTBot from crawling the sites. The robots.txt file contains the following lines:

Stack Overflow's robots.txt is completely useless

So the Allow: / directive overrides all the following disallows rendering robots.txt effectively useless. This is the reason all major search ...

What happens if a website does not have a robots.txt file?

The purpose of a robots.txt file is to keep crawlers out of certain parts of your website. Not having one should result in all your content ...

Why is my robots.txt not working? - Server Fault

In working with Google's webmaster tools. I moved the /files/ disallow to the bottom and ran a test on one PDF file in the files directory and ...

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Robots.txt Introduction and Guide | Google Search Central

Robots.txt is used to manage crawler traffic. Explore this robots.txt introduction guide to learn what robot.txt files are and how to use them.

An XML sitemap is an XML file that contains a list of all available site ...

Let's give it a try by downloading the robots.txt file ... Please note that your uncompressed Sitemap file may not ... Aug 2, 2014 ยท Stack Overflow Public questions ...