Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Robots.txt on subdomains
-
Hi guys!
I keep reading conflicting information on this and it's left me a little unsure. Am I right in thinking that a website with a subdomain of shop.sitetitle.com will share the same robots.txt file as the root domain?
-
That's about as comprehensive an answer as I could have hoped for. Thanks Ryan, really appreciated.
-
Mostly no. I say 'mostly' because a lot of times when you look at a site using www and no-www if both of those work they're almost always pulling files from the same location (hence the warnings around duplicate content), so both www.domain.com/robots.txt and domain.com/robots.txt are going to work. This is the dominant example of a subdomain sharing a robots.txt file. However, on domains that are set up as their own subdomains they have different robots.txt. Take a look at the many differences between subdomain1-1000.wordpress.com/robots.txt vs wordpress.com/robots.txt. If you set up a subdomain that isn't just a reflection of your root domain, then you'll need to create a robots.txt file as well. Cheers!
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Crawl solutions for landing pages that don't contain a robots.txt file?
My site (www.nomader.com) is currently built on Instapage, which does not offer the ability to add a robots.txt file. I plan to migrate to a Shopify site in the coming months, but for now the Instapage site is my primary website. In the interim, would you suggest that I manually request a Google crawl through the search console tool? If so, how often? Any other suggestions for countering this Meta Noindex issue?
Technical SEO | | Nomader1 -
Disallow wildcard match in Robots.txt
This is in my robots.txt file, does anyone know what this is supposed to accomplish, it doesn't appear to be blocking URLs with question marks Disallow: /?crawler=1
Technical SEO | | AmandaBridge
Disallow: /?mobile=1 Thank you0 -
Are subdomains a good seo strategy for a multistore e-commerce?
Hi there I'm wondering what is the best strategy to work with multi-stores on magento: to use or not to use subdomains? Suppose we have the www.website.com and we configure it to use multistore. The url base will not have the store id on it so it will not be like www.website.com/store1 and www.website.com/store2. It will simply rely on the user session so if we have two categories for each store it will acces using: www.website.com/category1 (for store 1) www.website.com/category2 (for store 2) The homepage will allways be set on www.website.com so we should have a single page for several "home pages" (depending on the user session / store he is accessing). I guess this is not a good option if we want to rank for different keywords (for each store). So I was wondering if it is a good solution to set: store1.website.com store2.website.com This way we have 2 "home pages" each one able to rank. Does it make sense? Is it good or bad for seo? Another option I was considering was: www.website.com (for store 1) store2.website.com (for store 2) store3.website.com (for store 3) www.website.com/blog (for blog) Can this work? Good or bad for seo? best regards
Technical SEO | | qgairsoft0 -
Removed Subdomain Sites Still in Google Index
Hey guys, I've got kind of a strange situation going on and I can't seem to find it addressed anywhere. I have a site that at one point had several development sites set up at subdomains. Those sites have since launched on their own domains, but the subdomain sites are still showing up in the Google index. However, if you look at the cached version of pages on these non-existent subdomains, it lists the NEW url, not the dev one in the little blurb that says "This is Google's cached version of www.correcturl.com." Clearly Google recognizes that the content resides at the new location, so how come the old pages are still in the index? Attempting to visit one of them gives a "Server Not Found" error, so they are definitely gone. This is happening to a couple of sites, one that was launched over a year ago so it doesn't appear to be a "wait and see" solution. Any suggestions would be a huge help. Thanks!!
Technical SEO | | SarahLK0 -
Robots.txt on http vs. https
We recently changed our domain from http to https. When a user enters any URL on http, there is an global 301 redirect to the same page on https. I cannot find instructions about what to do with robots.txt. Now that https is the canonical version, should I block the http-Version with robots.txt? Strangely, I cannot find a single ressource about this...
Technical SEO | | zeepartner0 -
"Fourth-level" subdomains. Any negative impact compared with regular "third-level" subdomains?
Hey moz New client has a site that uses: subdomains ("third-level" stuff like location.business.com) and; "fourth-level" subdomains (location.parent.business.com) Are these fourth-level addresses at risk of being treated differently than the other subdomains? Screaming Frog, for example, doesn't return these fourth-level addresses when doing a crawl for business.com except in the External tab. But maybe I'm just configuring the crawls incorrectly. These addresses rank, but I'm worried that we're losing some link juice along the way. Any thoughts would be appreciated!
Technical SEO | | jamesm5i0 -
Empty Meta Robots Directive - Harmful?
Hi, We had a coding update and a side-effect of that was that our directive was emptied, in other words it now reads as: on all of the site. I've since noticed that Google's cache date on all of the pages - at least, the ones I tested - have a Cached date of no later than 17 December '12 - that's the Monday after the directive was removed on mass. So, A, does anyone have solid evidence of an empty directive causing problems? Past experience, Matt Cutts, Fishkin quote, etc. And then B - It seems fairly well correlated but, does my entire site's homogenous Cached date point to this tag removal? Or is it fairly normal to have a particular cache date across a large site (we're a large ecommerce site). Our site: http://www.zando.co.za/ I'm having the directive reinstated as soon as Dev permitting. And then, for extra credit, is there a way with Google's API, or perhaps some other tool, to run an arbitrary list and retrieve Cached dates? I'd want to do this for diagnosis purposes and preferably in a way that OK with Google. I'd avoid CURLing for the cached URL and scraping out that dates with BASH, or any such kind of thing. Cheers,
Technical SEO | | RocketZando0 -
Should I block robots from URLs containing query strings?
I'm about to block off all URLs that have a query string using robots.txt. They're mostly URLs with coremetrics tags and other referrer info. I figured that search engines don't need to see these as they're always better off with the original URL. Might there be any downside to this that I need to consider? Appreciate your help / experiences on this one. Thanks Jenni
Technical SEO | | ShearingsGroup0