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.
Wildcarding Robots.txt for Particular Word in URL
-
Hey All,
So I know that this isn't a standard robots.txt, I'm aware of how to block or wildcard certain folders but I'm wondering whether it's possible to block all URL's with a certain word in it?
We have a client that was hacked a year ago and now they want us to help remove some of the pages that were being autogenerated with the word "viagra" in it. I saw this article and tried implementing it https://builtvisible.com/wildcards-in-robots-txt/ and it seems that I've been able to remove some of the URL's (although I can't confirm yet until I do a full pull of the SERPs on the domain). However, when I test certain URL's inside of WMT it still says that they are allowed which makes me think that it's not working fully or working at all.
In this case these are the lines I've added to the robots.txt
Disallow: /*&viagra
Disallow: /*&Viagra
I know I have the solution of individually requesting URL's to be removed from the index but I want to see if anybody has every had success with wildcarding URL's with a certain word in their robots.txt? The individual URL route could be very tedious.
Thanks!
Jon
-
Hey Paul,
Great answer, for some reason it totally slipped my mind that robots.txt is a crawling directive and not an index one. Yes the pages return a 404 on the headers. I've grabbed a copy of the complete SERPS and will now manually disallow them.
Thanks!
Jon
-
Thank for the endorsement, Christy! Funny, I only just now saw Rand's recent WBF related to this topic, but pleased to see my answer lines up exactly with his info.
P.
-
You need to be aware, Jonathan, that there is absolutely nothing about a robots.txt disallow that will help remove a URL from the search engine indexes. Robots is a crawling directive, NOT an indexing directive. In fact, in most cases, blocking URLs in robots.txt will actually cause them to remain in the index even longer.
I'm assuming you have cleaned up the site so the actual spam URLs no longer resolve. Those URLs should now result in a 404 error page. You must confirm they are actually returning the correct 404 code in the headers. As long as this is the case, it is a matter of waiting while the search engines crawl the spam URLs often enough to recognise they are really gone and remove them from the index. The problem with adding them to the robots.txt is that is actually telling the search engines NOT to crawl them, so they are unlikely to discover that they lead to 404s, hence they may remain in the index even longer.
Unfortunately you can't use a no-index tag on the offending pages, because the pages should no longer exist on the site. I don't think even a careful implementation of a X-Robots noindex directive in htaccess would work, because the URLs should be resulting in a 404.
Make certain the problem URLs return a clean 404, use the Google Search Console Remove URLs tool for as many of them as you can (for example you can request removal for entire directories, if the spam happened to be built that way), and then be patient for the rest. But do NOT block them in robots.txt - you'll just prolong the agony and waste your time.
Hope that all makes sense?
Paul
-
Hi Jon,
Why not just: Disallow: /viagra
-
Jon,
I have never done it with a robots.txt, one easy why that I think you could do it would be on the page level. You could add a noindex nofollow to the page itself.
You can generate it automatically too and have it fired depending on the url by using a substring search on the url as well. That will get them all for sure.
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
-
Robots.txt & Disallow: /*? Question!
Hi, I have a site where they have: Disallow: /*? Problem is we need the following indexed: ?utm_source=google_shopping What would the best solution be? I have read: User-agent: *
Intermediate & Advanced SEO | Mar 30, 2020, 5:48 AM | vetofunk
Allow: ?utm_source=google_shopping
Disallow: /*? Any ideas?0 -
All URLs in the site is 302 redirected to itself
Hi everyone, I have a problem with a website wherein all URLs (homepage, inner pages) are 302 redirected. This is based on Screaming Frog crawl. But the weird thing is that they are 302 redirected to themselves which doesn't make any sense. Example:
Intermediate & Advanced SEO | Jul 10, 2017, 4:03 PM | alex_goldman
https://www.example.com.au/ is 302 redirected to https://www.example.com.au/ https://www.example.com.au/shop is 302 redirected to https://www.example.com.au/shop https://www.example.com.au/shop/dresses is 302 redirected to https://www.example.com.au/shop/dresses Have you encountered this issue? What did you do to fix it? Would be very glad to hear your responses. Cheers!0 -
If my website do not have a robot.txt file, does it hurt my website ranking?
After a site audit, I find out that my website don't have a robot.txt. Does it hurt my website rankings? One more thing, when I type mywebsite.com/robot.txt, it automatically redirect to the homepage. Please help!
Intermediate & Advanced SEO | Apr 23, 2024, 9:17 AM | binhlai0 -
Should I disallow all URL query strings/parameters in Robots.txt?
Webmaster Tools correctly identifies the query strings/parameters used in my URLs, but still reports duplicate title tags and meta descriptions for the original URL and the versions with parameters. For example, Webmaster Tools would report duplicates for the following URLs, despite it correctly identifying the "cat_id" and "kw" parameters: /Mulligan-Practitioner-CD-ROM
Intermediate & Advanced SEO | Jul 7, 2015, 9:05 AM | jmorehouse
/Mulligan-Practitioner-CD-ROM?cat_id=87
/Mulligan-Practitioner-CD-ROM?kw=CROM Additionally, theses pages have self-referential canonical tags, so I would think I'd be covered, but I recently read that another Mozzer saw a great improvement after disallowing all query/parameter URLs, despite Webmaster Tools not reporting any errors. As I see it, I have two options: Manually tell Google that these parameters have no effect on page content via the URL Parameters section in Webmaster Tools (in case Google is unable to automatically detect this, and I am being penalized as a result). Add "Disallow: *?" to hide all query/parameter URLs from Google. My concern here is that most backlinks include the parameters, and in some cases these parameter URLs outrank the original. Any thoughts?0 -
Linking to URLs With Hash (#) in Them
How does link juice flow when linking to URLs with the hash tag in them? If I link to this page, which generates a pop-over on my homepage that gives info about my special offer, where will the link juice go to? homepage.com/#specialoffer Will the link juice go to the homepage? Will it go nowhere? Will it go to the hash URL above? I'd like to publish an annual/evergreen sort of offer that will generate lots of links. And instead of driving those links to homepage.com/offer, I was hoping to get that link juice to flow to the homepage, or maybe even a product page, instead. And just updating the pop over information each year as the offer changes. I've seen competitors do it this way but wanted to see what the community here things in terms of linking to URLs with the hash tag in them. Can also be a use case for using hash tags in URLs for tracking purposes maybe?
Intermediate & Advanced SEO | Apr 22, 2015, 5:06 PM | MiguelSalcido0 -
Robots.txt, does it need preceding directory structure?
Do you need the entire preceding path in robots.txt for it to match? e.g: I know if i add Disallow: /fish to robots.txt it will block /fish
Intermediate & Advanced SEO | Oct 15, 2013, 5:58 AM | Milian
/fish.html
/fish/salmon.html
/fishheads
/fishheads/yummy.html
/fish.php?id=anything But would it block?: en/fish
en/fish.html
en/fish/salmon.html
en/fishheads
en/fishheads/yummy.html
**en/fish.php?id=anything (taken from Robots.txt Specifications)** I'm hoping it actually wont match, that way writing this particular robots.txt will be much easier! As basically I'm wanting to block many URL that have BTS- in such as: http://www.example.com/BTS-something
http://www.example.com/BTS-somethingelse
http://www.example.com/BTS-thingybob But have other pages that I do not want blocked, in subfolders that also have BTS- in, such as: http://www.example.com/somesubfolder/BTS-thingy
http://www.example.com/anothersubfolder/BTS-otherthingy Thanks for listening0 -
URL Structure for Directory Site
We have a directory that we're building and we're not sure if we should try to make each page an extension of the root domain or utilize sub-directories as users narrow down their selection. What is the best practice here for maximizing your SERP authority? Choice #1 - Hyphenated Architecture (no sub-folders): State Page /state/ City Page /city-state/ Business Page /business-city-state/
Intermediate & Advanced SEO | Apr 6, 2012, 8:10 PM | knowyourbank
4) Location Page /locationname-city-state/ or.... Choice #2 - Using sub-folders on drill down: State Page /state/ City Page /state/city Business Page /state/city/business/
4) Location Page /locationname-city-state/ Again, just to clarify, I need help in determining what the best methodology is for achieving the greatest SEO benefits. Just by looking it would seem that choice #1 would work better because the URL's are very clear and SEF. But, at the same time it may be less intuitive for search. I'm not sure. What do you think?0 -
Magento: URLs for Products in Multiple Categories
I am working in Magento to build out a large e-commerce site with several thousand products. It's a great platform, but I have run into the issue of what it does to URLs when you put a product into multiple categories. Basically, "a book" in two categories would make two URLs for one product: 1) /books/a-book 2) author-name/a-book So, I need to come up with a solution for this. It seems I have two options: Found this from a Magento SEO article: 'Magento gives you the ability to add the name of categories to path for product URL's. Because Magento doesn't support this functionality very well - it creates duplicate content issues - it is a very good idea to disable this. To do this, go to System => Configuration => Catalog => Search Engine Optimization and set "Use categories path for product URL's to "no".' This would solve the issues and be a quick fix, but I think it's a double edged sword, because then we lose the SEO value of our well named categories being in the URL. Use Canonical tags. To be fair, I'm not even sure this is possible. Even though it is creating different URLs and, thus, poses a risk of "duplicate content" being crawled, there really is only one page on the admin side. So, I can't go to all of the "duplicate" pages and put a canonical tag, because those duplicate pages don't really exist on the back-end. Does that make sense? After typing this out, it seems like the best thing to do probably will be to just turn off categories in the URL from the admin side. However, I'd still love any input from the community on this. Thanks!
Intermediate & Advanced SEO | Mar 28, 2012, 6:08 PM | Marketing.SCG0