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.
Are robots.txt wildcards still valid? If so, what is the proper syntax for setting this up?
-
I've got several URL's that I need to disallow in my robots.txt file. For example, I've got several documents that I don't want indexed and filters that are getting flagged as duplicate content. Rather than typing in thousands of URL's I was hoping that wildcards were still valid.
-
Great job. I just wanted to add this from Google Webmasters
http://googlewebmastercentral.blogspot.com/2008/06/improving-on-robots-exclusion-protocol.html
and this from Google Developers
https://developers.google.com/webmasters/control-crawl-index/docs/robots_txt
-
Yup wildcard syntax is indeed still valid. However I can only confirm that the big 3 (Google, Yahoo and Bing) actively observe it. Other secondary search engines may not.
In your case you are probably looking for a syntax along the lines of:
User-agent: *
Disallow: /*.pdf$ This would set that any user agent should be blocked from any file name that ends in .pdf (a $ ties it to the end so pdf.txt would not be blocked in this case)Keep an eye on how you block them. Missing a trailing slash could block a directory rather than a file, or not appending a strict symbol ($) could mean that phrases throughout a directory could be blocked rather than just a filename.
Also keep in mind if you are using URL re-writing this may play into how you need to block things; and you may also want to remember that disallowing access in a robot.txt does NOT prevent search engines from indexing the data, it is up to them if they honor the request. So if it is very important to block the file access from search engines then robots.txt may not be the way to do it.
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
-
Deleting Tags Properly - Advice Needed
I have over 18,000 tags. Needless to say, most of them are relatively useless to the user and generate no traffic, while cluttering the site. (I use Wordpress.) My plan is to delete tags, but I want to do so safely as to not accumulate website errors. (Tags pages are noindexed.) What process should I take here? Here was my basic plan (any help is appreciated). 1. Find irrelevant tags that are connected with hardly any posts. 2. Go into the post, and remove said tag. 3. Now, with a tag having a 'count' of 0, I go into Tags, and delete it. Safe, right? But now it seems those tag pages just turned into 404s "Uh-oh...Page not found!" Where do I go from here? Create 410's? Thanks Mike
Technical SEO | | naturalsociety0 -
Setting title tag with javascript/jquery
Hi there, I'm looking for some advice. I've recently implemented a few jQuery functions which gets specific content from the page and then sets the title and description. See working example here. It seems to work fine but my question I have is whether Google bots can read it and whether it might actually hinder my SEO efforts? Any advice would be really appreciated! Peter
Technical SEO | | peterallen0 -
Is there any value in having a blank robots.txt file?
I've read an audit where the writer recommended creating and uploading a blank robots.txt file, there was no current file in place. Is there any merit in having a blank robots.txt file? What is the minimum you would include in a basic robots.txt file?
Technical SEO | | NicDale0 -
OK to block /js/ folder using robots.txt?
I know Matt Cutts suggestions we allow bots to crawl css and javascript folders (http://www.youtube.com/watch?v=PNEipHjsEPU) But what if you have lots and lots of JS and you dont want to waste precious crawl resources? Also, as we update and improve the javascript on our site, we iterate the version number ?v=1.1... 1.2... 1.3... etc. And the legacy versions show up in Google Webmaster Tools as 404s. For example: http://www.discoverafrica.com/js/global_functions.js?v=1.1
Technical SEO | | AndreVanKets
http://www.discoverafrica.com/js/jquery.cookie.js?v=1.1
http://www.discoverafrica.com/js/global.js?v=1.2
http://www.discoverafrica.com/js/jquery.validate.min.js?v=1.1
http://www.discoverafrica.com/js/json2.js?v=1.1 Wouldn't it just be easier to prevent Googlebot from crawling the js folder altogether? Isn't that what robots.txt was made for? Just to be clear - we are NOT doing any sneaky redirects or other dodgy javascript hacks. We're just trying to power our content and UX elegantly with javascript. What do you guys say: Obey Matt? Or run the javascript gauntlet?0 -
Invisible robots.txt?
So here's a weird one... Client comes to me for some simple changes, turns out there are some major issues with the site, one of which is that none of the correct content pages are showing up in Google, just ancillary (outdated) ones. Looks like an issue because even the main homepage isn't showing up with a "site:domain.com" So, I add to Webmaster Tools and, after an hour or so, I get the red bar of doom, "robots.txt is blocking important pages." I check it out in Webmasters and, sure enough, it's a "User agent: * Disallow /" ACK! But wait... there's no robots.txt to be found on the server. I can go to domain.com/robots.txt and see it but nothing via FTP. I upload a new one and, thankfully, that is now showing but I've never seen that before. Question is: can a robots.txt file be stored in a way that can't be seen? Thanks!
Technical SEO | | joshcanhelp0 -
Should we use Google's crawl delay setting?
We’ve been noticing a huge uptick in Google’s spidering lately, and along with it a notable worsening of render times. Yesterday, for example, Google spidered our site at a rate of 30:1 (google spider vs. organic traffic.) So in other words, for every organic page request, Google hits the site 30 times. Our render times have lengthened to an avg. of 2 seconds (and up to 2.5 seconds). Before this renewed interest Google has taken in us we were seeing closer to one second average render times, and often half of that. A year ago, the ratio of Spider to Organic was between 6:1 and 10:1. Is requesting a crawl-delay from Googlebot a viable option? Our goal would be only to reduce Googlebot traffic, and hopefully improve render times and organic traffic. Thanks, Trisha
Technical SEO | | lzhao0 -
How to set up a rel canonical in big commmerce?
I have no clue how to set this up in the Bigcommerce store platform
Technical SEO | | Firestarter-SEO0