I have two robots.txt pages for www and non-www version. Will that be a problem?

[ramb]

There are two robots.txt pages. One for www version and another for non-www version though I have moved to the non-www version.

[GastonRiera]

Hi ramb,

It's totally fine to have different robots.txt files for different subdomains.
Thus said, http://domain.com and http://www.domain.com are different subdomains. Consider the one with non-www as the full root domain.

In case it is needed, here you have Google's official resource about robots.txt: 
Learn about Robots.txt file - Search Console help

Hope it helps.
Best luck.
Gast

[ramb]

Hi Gatson

Thank you for your response. Currently, www version of the site is redirected to non-www version, which is the primary(or root) domain.

But the problem is, I have 2 robots.txt files running for the same site. i.e. same robots.txt file loads on both www and non-www version. (Example https://www.abc.com/robots.txt and https://abc.com/robots.txt).

Does it affect my site's SEO ??
Should I redirect www-version of the file to non-www version?
Your feedback will be highly appreciated.

Thank you,

R.

[Xiano]

Are you redirecting everything on www to non-www? If so, you don't really need a robots.txt to be served for the www subdomain. Google will ignore the original robots.txt file if it is given a 301 anyway.

[GastonRiera]

Hi ramb,

Short answer: No, it won't affect your ability to rank in Google. Unless both sites (non-www and www version) compete for the same search term and one of them isn't blocked in the correspondent robots.txt file.

If you can, make sure to have a redirection rule so as everything in the non-www goes to the www.
It bugs me why aren't you redirecting the complete non-www to the www version.
Two possibilities come to my mind:

1. You can't redirect the whole non-www due to some app or technical need. 
   In this case, both versions, if accessible to Google, will be treated as different sites. Thus, you must be sure that both robots file are correct for the given subdomain.
2. You have a separate website, which contains different content from the www version (this usually happens with subdomains with different page types, such as products.abc.com and categories.abc.com)
   In this case, please be sure that you know what you want to be blocked and have each robots.txt file in their subdomain.

Keep in mind that Robots file only controls where you don't want googlebot to access in the public version of your website. When a certain page or group of pages are blocked in robots.txt, google won't access them anymore thus not knowing if that page has what it needs to rank for any given search term. Google might rank lower and users will see a note in search results, leading to a lower CTR.

Hope it helps.
Best Luck.
Gaston

[jasongmcmahon]

It wont affect your SEO, you just don;t need the the non-https version