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WmWsjA6B29B4nfkyesterday at 7:52 PM4 repliesview on HN

Google docs are pretty clear (https://developers.google.com/crawling/docs/robots-txt/robot...):

> Google's crawlers treat all 4xx errors, except 429, as if a valid robots.txt file didn't exist. This means that Google assumes that there are no crawl restrictions.

This is a better source than a random SEO dude with a channel full of AI-generated videos.


Replies

marginalia_nuyesterday at 8:14 PM

Not entirely unlikely this is just a bug on Google's end.

It's fairly common for there to be a very long and circuitous route between cause and effect in search, so a bug like this can sometimes be difficult to identify until people start making blog posts about it.

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conradfryesterday at 8:40 PM

Google Adsense docs says that ads.txt is not mandatory and yet I remember having no ads displayed on my website until I added one.