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.
Large robots.txt file
-
We're looking at potentially creating a robots.txt with 1450 lines in it. This will remove 100k+ pages from the crawl that are all old pages (I know, the ideal would be to delete/noindex but not viable unfortunately)
Now the issue i'm thinking is that a large robots.txt will either stop the robots.txt from being followed or will slow our crawl rate down.
Does anybody have any experience with a robots.txt of that size?
-
Answered my own questions:
https://developers.google.com/webmasters/control-crawl-index/docs/robots_txt?csw=1#file-format
"A maximum file size may be enforced per crawler. Content which is after the maximum file size may be ignored. Google currently enforces a size limit of 500kb."
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
-
Block session id URLs with robots.txt
Hi, I would like to block all URLs with the parameter '?filter=' from being crawled by including them in the robots.txt. Which directive should I use: User-agent: *
Intermediate & Advanced SEO | | Mat_C
Disallow: ?filter= or User-agent: *
Disallow: /?filter= In other words, is the forward slash in the beginning of the disallow directive necessary? Thanks!1 -
Best practice for deindexing large quantities of pages
We are trying to deindex a large quantity of pages on our site and want to know what the best practice for doing that is. For reference, the reason we are looking for methods that could help us speed it up is we have about 500,000 URLs that we want deindexed because of mis-formatted HTML code and google indexed them much faster than it is taking to unindex them unfortunately. We don't want to risk clogging up our limited crawl log/budget by submitting a sitemap of URLs that have "noindex" on them as a hack for deindexing. Although theoretically that should work, we are looking for white hat methods that are faster than "being patient and waiting it out", since that would likely take months if not years with Google's current crawl rate of our site.
Intermediate & Advanced SEO | | teddef0 -
Should I use noindex or robots to remove pages from the Google index?
I have a Magento site and just realized we have about 800 review pages indexed. The /review directory is disallowed in robots.txt but the pages are still indexed. From my understanding robots means it will not crawl the pages BUT if the pages are still indexed if they are linked from somewhere else. I can add the noindex tag to the review pages but they wont be crawled. https://www.seroundtable.com/google-do-not-use-noindex-in-robots-txt-20873.html Should I remove the robots.txt and add the noindex? Or just add the noindex to what I already have?
Intermediate & Advanced SEO | | Tylerj0 -
Hacked website - Dealing with 301 redirects and a large .htaccess file
One of my client's websites was recently hacked and I've been dealing with the after effects of it. The website is now clean of malware and I already appealed to Google about the malware issue. The current issue I have is dealing with the 20, 000+ crawl errors which are garbage links that were created from the hacking. How does one go about dealing with all the 301 redirects I need to create for all the 404 crawl errors? I'm already noticing an increased load time on the website due to having a rather large .htaccess file with a couple thousand 301 redirects done already which I fear will result in my client's website performance and SEO performance taking a hit as well.
Intermediate & Advanced SEO | | FPK0 -
Robots.txt: how to exclude sub-directories correctly?
Hello here, I am trying to figure out the correct way to tell SEs to crawls this: http://www.mysite.com/directory/ But not this: http://www.mysite.com/directory/sub-directory/ or this: http://www.mysite.com/directory/sub-directory2/sub-directory/... But with the fact I have thousands of sub-directories with almost infinite combinations, I can't put the following definitions in a manageable way: disallow: /directory/sub-directory/ disallow: /directory/sub-directory2/ disallow: /directory/sub-directory/sub-directory/ disallow: /directory/sub-directory2/subdirectory/ etc... I would end up having thousands of definitions to disallow all the possible sub-directory combinations. So, is the following way a correct, better and shorter way to define what I want above: allow: /directory/$ disallow: /directory/* Would the above work? Any thoughts are very welcome! Thank you in advance. Best, Fab.
Intermediate & Advanced SEO | | fablau1 -
Robots Disallow Backslash - Is it right command
Bit skeptical, as due to dynamic url and some other linkage issue, google has crawled url with backslash and asterisk character ex - www.xyz.com/\/index.php?option=com_product www.xyz.com/\"/index.php?option=com_product Now %5c is the encoded version of \ - backslash & %22 is encoded version of asterisk Need to know for command :- User-agent: * Disallow: \As am disallowing all backslash url through this - will it only remove the backslash url which are duplicates or the entire site,
Intermediate & Advanced SEO | | Modi0 -
Soft 404's from pages blocked by robots.txt -- cause for concern?
We're seeing soft 404 errors appear in our google webmaster tools section on pages that are blocked by robots.txt (our search result pages). Should we be concerned? Is there anything we can do about this?
Intermediate & Advanced SEO | | nicole.healthline4 -
All page files in root? Or to use directories?
We have thousands of pages on our website; news articles, forum topics, download pages... etc - and at present they all reside in the root of the domain /. For example: /aosta-valley-i6816.html
Intermediate & Advanced SEO | | Peter264
/flight-sim-concorde-d1101.html
/what-is-best-addon-t3360.html We are considering moving over to a new URL system where we use directories. For example, the above URLs would be the following: /images/aosta-valley-i6816.html
/downloads/flight-sim-concorde-d1101.html
/forums/what-is-best-addon-t3360.html Would we have any benefit in using directories for SEO purposes? Would our current system perhaps mean too many files in the root / flagging as spammy? Would it be even better to use the following system which removes file endings completely and suggests each page is a directory: /images/aosta-valley/6816/
/downloads/flight-sim-concorde/1101/
/forums/what-is-best-addon/3360/ If so, what would be better: /images/aosta-valley/6816/ or /images/6816/aosta-valley/ Just looking for some clarity to our problem! Thank you for your help guys!0